MX25U4033E
MX25U4033E
1.8V, 4M-BIT [x 1/x 2/x 4]
CMOS MXSMIO® (SERIAL MULTI I/O)
FLASH MEMORY
Key Features
• HOLD feature
• Multi I/O Support - Single I/O, Dual I/O and Quad I/O
• Auto Erase and Auto Program Algorithm
• Low Power Consumption
P/N: PM1755
1
REV. 1.9, JAN. 12, 2016
MX25U4033E
Contents
1. FEATURES............................................................................................................................................................... 6
2. GENERAL DESCRIPTION....................................................................................................................................... 7
Table 1. Additional Feature Comparison..................................................................................................... 7
3. PIN CONFIGURATIONS .......................................................................................................................................... 8
4. PIN DESCRIPTION................................................................................................................................................... 8
5. BLOCK DIAGRAM.................................................................................................................................................... 9
6. DATA PROTECTION............................................................................................................................................... 10
Table 2. Protected Area Sizes................................................................................................................... 11
Table 3. 4K-bit Secured OTP Definition.................................................................................................... 11
7. MEMORY ORGANIZATION.................................................................................................................................... 12
Table 4. Memory Organization.................................................................................................................. 12
8. DEVICE OPERATION............................................................................................................................................. 13
Figure 1. Serial Modes Supported............................................................................................................ 13
9. HOLD FEATURE..................................................................................................................................................... 14
Figure 2. Hold Condition Operation ......................................................................................................... 14
10. COMMAND DESCRIPTION.................................................................................................................................. 15
Table 5. Command Set............................................................................................................................. 15
10-1. Write Enable (WREN)............................................................................................................................... 17
10-2. Write Disable (WRDI)............................................................................................................................... 17
10-3. Read Identification (RDID)........................................................................................................................ 17
10-4. Read Status Register (RDSR).................................................................................................................. 17
Table 6. Status Register............................................................................................................................ 21
10-5. Write Status Register (WRSR)................................................................................................................. 22
Table 7. Protection Modes........................................................................................................................ 22
10-6. Read Data Bytes (READ)......................................................................................................................... 23
10-7. Read Data Bytes at Higher Speed (FAST_READ)................................................................................... 23
10-8. 2 x I/O Read Mode (2READ).................................................................................................................... 23
10-9. 4 x I/O Read Mode (4READ).................................................................................................................... 24
10-10. Performance Enhance Mode.................................................................................................................... 25
10-11. Sector Erase (SE)..................................................................................................................................... 25
10-12. Block Erase (BE32K)................................................................................................................................ 26
10-13. Block Erase (BE)...................................................................................................................................... 26
10-14. Chip Erase (CE)........................................................................................................................................ 26
10-15. Page Program (PP).................................................................................................................................. 27
10-16. 4 x I/O Page Program (4PP)..................................................................................................................... 27
10-17. Deep Power-down (DP)............................................................................................................................ 27
10-18. Release from Deep Power-down (RDP), Read Electronic Signature (RES)............................................ 28
10-19. Read Electronic Manufacturer ID & Device ID (REMS), (REMS2), (REMS4).......................................... 28
Table 8. ID Definitions .............................................................................................................................. 29
P/N: PM1755
2
REV. 1.9, JAN. 12, 2016
MX25U4033E
10-20. Enter Secured OTP (ENSO)..................................................................................................................... 29
10-21. Exit Secured OTP (EXSO)........................................................................................................................ 29
10-22. Read Security Register (RDSCUR).......................................................................................................... 29
Table 9. Security Register Definition......................................................................................................... 30
10-23. Write Security Register (WRSCUR)......................................................................................................... 30
10-24. Write Protection Selection (WPSEL)........................................................................................................ 30
Figure 3. WPSEL Flow.............................................................................................................................. 31
10-25. Single Block Lock/Unlock Protection (SBLK/SBULK)............................................................................... 32
Figure 4. Block Lock Flow......................................................................................................................... 32
Figure 5. Block Unlock Flow..................................................................................................................... 33
10-26. Read Block Lock Status (RDBLOCK)....................................................................................................... 34
10-27. Gang Block Lock/Unlock (GBLK/GBULK)................................................................................................ 34
10-28. Read SFDP Mode (RDSFDP).................................................................................................................. 35
Figure 6. Read Serial Flash Discoverable Parameter (RDSFDP) Sequence........................................... 35
Table 10. Signature and Parameter Identification Data Values ............................................................... 36
Table 11. Parameter Table (0): JEDEC Flash Parameter Tables.............................................................. 37
Table 12. Parameter Table (1): Macronix Flash Parameter Tables........................................................... 39
11. POWER-ON STATE.............................................................................................................................................. 41
12. ELECTRICAL SPECIFICATIONS......................................................................................................................... 42
12-1. Absolute Maximum Ratings...................................................................................................................... 42
Figure 7. Maximum Negative Overshoot Waveform................................................................................. 42
12-2. Capacitance.............................................................................................................................................. 42
Figure 8. Maximum Positive Overshoot Waveform................................................................................... 42
Figure 9. Input Test Waveforms and Measurement Level........................................................................ 43
Figure 10. Output Loading........................................................................................................................ 43
Table 13. DC Characteristics.................................................................................................................... 44
Table 14. AC Characteristics..................................................................................................................... 45
13. TIMING ANALYSIS............................................................................................................................................... 46
Figure 11. Serial Input Timing................................................................................................................... 46
Figure 12. Output Timing.......................................................................................................................... 46
Figure 13. WP# Setup Timing and Hold Timing during WRSR when SRWD=1....................................... 47
Figure 14. Write Enable (WREN) Sequence (Command 06)................................................................... 47
Figure 15. Write Disable (WRDI) Sequence (Command 04).................................................................... 48
Figure 16. Read Identification (RDID) Sequence (Command 9F) ........................................................... 48
Figure 17. Read Status Register (RDSR) Sequence (Command 05) ...................................................... 48
Figure 18. Write Status Register (WRSR) Sequence (Command 01)..................................................... 49
Figure 19. Read Data Bytes (READ) Sequence (Command 03) (50MHz).............................................. 49
Figure 20. Read at Higher Speed (FAST_READ) Sequence (Command 0B) ........................................ 50
Figure 21. 2 x I/O Read Mode Sequence (Command BB)....................................................................... 50
Figure 22. 4 x I/O Read Mode Sequence (Command EB) ...................................................................... 51
Figure 23. 4 x I/O Read Enhance Performance Mode Sequence (Command EB)................................... 52
P/N: PM1755
3
REV. 1.9, JAN. 12, 2016
MX25U4033E
Figure 24. Page Program (PP) Sequence (Command 02) ..................................................................... 53
Figure 25. 4 x I/O Page Program (4PP) Sequence (Command 38)........................................................ 53
Figure 26. Sector Erase (SE) Sequence (Command 20)........................................................................ 54
Figure 27. Block Erase 32KB (BE32K) Sequence (Command 52).......................................................... 54
Figure 28. Block Erase (BE) Sequence (Command D8)......................................................................... 54
Figure 29. Chip Erase (CE) Sequence (Command 60 or C7)................................................................. 54
Figure 30. Deep Power-down (DP) Sequence (Command B9)............................................................... 55
Figure 31. RDP and Read Electronic Signature (RES) Sequence (Command AB) ................................ 55
Figure 32. Release from Deep Power-down (RDP) Sequence (Command AB)...................................... 56
Figure 33. Read Electronic Manufacturer & Device ID (REMS) Sequence (Command 90/EF/DF)......... 56
Figure 34. Read Security Register (RDSCUR) Sequence (Command 2B).............................................. 57
Figure 35. Write Security Register (WRSCUR) Sequence (Command 2F).............................................. 57
Figure 36. Power-up Timing...................................................................................................................... 58
Table 15. Power-Up Timing....................................................................................................................... 58
14. OPERATING CONDITIONS.................................................................................................................................. 59
Figure 37. AC Timing at Device Power-Up............................................................................................... 59
Figure 38. Power-Down Sequence........................................................................................................... 60
15. ERASE AND PROGRAMMING PERFORMANCE............................................................................................... 61
16. DATA RETENTION............................................................................................................................................... 61
17. LATCH-UP CHARACTERISTICS......................................................................................................................... 61
18. ORDERING INFORMATION................................................................................................................................. 62
19. PART NAME DESCRIPTION................................................................................................................................ 63
20. PACKAGE INFORMATION................................................................................................................................... 64
20-1. 8-pin SOP (150mil)................................................................................................................................... 64
20-2. 8-land USON (4x4mm)............................................................................................................................. 65
20-3. 8-land USON (4x3mm)............................................................................................................................. 66
20-4. 8-land WSON (6x5mm)............................................................................................................................ 67
20-5. 8-WLCSP.................................................................................................................................................. 68
21. REVISION HISTORY ............................................................................................................................................ 69
P/N: PM1755
4
REV. 1.9, JAN. 12, 2016
MX25U4033E
Tables
P/N: PM1755
Table 1. Additional Feature Comparison................................................................................................ 7
Table 2. Protected Area Sizes.............................................................................................................. 11
Table 3. 4K-bit Secured OTP Definition............................................................................................... 11
Table 4. Memory Organization............................................................................................................. 12
Table 5. Command Set......................................................................................................................... 15
Table 6. Status Register....................................................................................................................... 21
Table 7. Protection Modes.................................................................................................................... 22
Table 8. ID Definitions ......................................................................................................................... 29
Table 9. Security Register Definition.................................................................................................... 30
Table 10. Signature and Parameter Identification Data Values ........................................................... 36
Table 11. Parameter Table (0): JEDEC Flash Parameter Tables......................................................... 37
Table 12. Parameter Table (1): Macronix Flash Parameter Tables...................................................... 39
Table 13. DC Characteristics................................................................................................................ 44
Table 14. AC Characteristics................................................................................................................ 45
Table 15. Power-Up Timing.................................................................................................................. 58
5
REV. 1.9, JAN. 12, 2016
MX25U4033E
4M-BIT [x 1/x 2/x 4] 1.8V CMOS MXSMIO® (SERIAL MULTI I/O) FLASH MEMORY
1. FEATURES
GENERAL
• Single Power Supply Operation
- 1.65 to 2.0 volt for read, erase, and program operations
• Supports Serial Peripheral Interface -- Mode 0 and
Mode 3
• 4M: 4,194,304 x 1 bit structure or 2,097,152 x 2 bits (two
I/O read mode) structure
or 1,048,576 x 4 bits (four I/O read mode) structure
• 128 Equal Sectors with 4K byte each
- Any Sector can be erased individually
• 16 Equal Blocks with 32K byte each
- Any Block can be erased individually
• 8 Equal Blocks with 64K byte each
- Any Block can be erased individually
• Program Capability
- Byte base
- Page base (256 bytes)
• Latch-up protected to 100mA from -1V to Vcc +1V
PERFORMANCE
• High Performance
- Fast read
- 1 I/O: 80MHz with 8 dummy cycles
- 2 I/O: 80MHz with 4 dummy cycles,
equivalent to 160MHz
- 4 I/O: 70MHz with 6 dummy cycles,
equivalent to 280MHz;
- Fast program time:
1.2ms (typ.)
and 3ms (max.)/page (256-byte per page)
- Byte program time: 10us (typ.)
- Fast erase time
- 30ms(typ.)
and 200ms(max.)/sector (4K-byte per sector)
- 200ms(typ.)
and 1000ms(max.)/block(32K-byte per block)
- 500ms(typ.)
and 2000ms(max.)/block(64K-byte per block)
- 2.5.s(typ.) and 5s(max.)/chip
• Low Power Consumption
- Low active read current:
12mA(max.) at 80MHz,
7mA(max.) at 33MHz
- Low active erase/programming current: 25mA (max.)
- Low standby current: 8uA (typ.)/30uA (max.)
• Low Deep Power Down current: 8uA(max.)
• Typical 100,000 erase/program cycles
• 20 years data retention
P/N: PM1755
SOFTWARE FEATURES
• Input Data Format
- 1-byte Command code
• Advanced Security Features
- Block lock protection
The BP0-BP3 status bit defines the size of the area to
be software protection against program and erase instructions
- Additional 4K-bit secured OTP for unique identifier
• Auto Erase and Auto Program Algorithm
- Automatically erases and verifies data at selected
sector or block
- Automatically programs and verifies data at selected
page by an internal algorithm that automatically times
the program pulse widths (Any page to be programed
should have page in the erased state first).
• Status Register Feature
• Electronic Identification
- JEDEC 1-byte manufacturer ID and 2-byte device ID
- RES command for 1-byte Device ID
- REMS, REMS2 and REMS4 commands for 1-byte
manufacturer ID and 1-byte device ID
• Support Serial Flash Discoverable Parameters (SFDP)
mode
HARDWARE FEATURES
• SCLK Input
- Serial clock input
• SI/SIO0
- Serial Data Input or Serial Data Input/Output for 2 x I/
O read mode and 4 x I/O read mode
• SO/SIO1
- Serial Data Output or Serial Data Input/Output for 2 x
I/O read mode and 4 x I/O read mode
• WP#/SIO2
- Hardware write protection or serial data Input/Output
for 4 x I/O read mode
• HOLD#/SIO3
- HOLD feature, to pause the device without deselecting the device or serial data Input/Output for 4 x I/O
read mode
• PACKAGE
- 8-pin SOP (150mil)
- 8-land USON (4x3mm)
- 8-land USON (4x4mm)
- 8-land WSON (6x5mm)
- 8-WLCSP
- All devices are RoHS Compliant and Halogen-free
6
REV. 1.9, JAN. 12, 2016
MX25U4033E
2. GENERAL DESCRIPTION
The MX25U4033E is 4,194,304 bit Serial NOR Flash memory, which is configured as 1,048,576 x 4 internally. The
MX25U4033E features a serial peripheral interface and software protocol allowing operation on a simple 4-wire bus
while it is in single I/O mode. The four bus signals are a clock input (SCLK), a serial data input (SI), a serial data output (SO)
and a chip select (CS#). Serial access to the device is enabled by CS# input.
When it is in two I/O read mode, the SI pin and SO pin become SIO0 pin and SIO1 pin for address/dummy bits input
and data output. When it is in four I/O read mode, the SI pin, SO pin, WP# pin and HOLD# pin become SIO0 pin,
SIO1 pin, SIO2 pin and SIO3 pin for address/dummy bits input and data output.
The MX25U4033E MXSMIO® (Serial Multi I/O) provides sequential read operation on the whole chip.
After program/erase command is issued, auto program/erase algorithms which program/erase and verify the
specified page or sector/block locations will be executed. Program command is executed on byte basis, or page
(256 bytes) basis. Erase command is executed on 4K-byte sector, 32K-byte block, or 64K-byte block, or whole chip
basis.
To provide user with ease of interface, a status register is included to indicate the status of the chip. The status read
command can be issued to detect completion status of a program or erase operation via the WIP bit.
Advanced security features enhance the protection and security functions, please see security features section for
more details.
When the device is not in operation and CS# is high, it is put in standby mode.
The MX25U4033E utilizes Macronix's proprietary memory cell, which reliably stores memory contents even after
100,000 program and erase cycles.
Table 1. Additional Feature Comparison
Additional
Features
Part
Name
MX25U4033E
P/N: PM1755
Protection and Security
Flexible
Block
Protection
(BP0-BP3)
Individual
Protect
V
V
Read Performance
4K-bit
2 I/O Read
secured OTP
V
V
7
4 I/O Read
V
Identifier
REMS/
REMS2/
RES
RDID
REMS4
(Command:
(Command:
(Command:
AB hex)
9F hex)
90/EF/DF
hex)
C2 33 (hex) C2 25 33
33 (hex)
(if ADD=0)
(hex)
REV. 1.9, JAN. 12, 2016
MX25U4033E
3. PIN CONFIGURATIONS
8-PIN SOP (150mil)
8-LAND USON(4x3mm), USON (4x4mm)
CS#
SO/SIO1
WP#/SIO2
GND
1
2
3
4
VCC
HOLD#/SIO3
SCLK
SI/SIO0
8
7
6
5
CS#
SO/SIO1
WP#/SIO2
GND
1
2
3
4
8
7
6
5
A
2
VCC
CS#
DESCRIPTION
Chip Select
Serial Data Input (for 1 x I/O)/ Serial
SI/SIO0
Data Input & Output (for 2xI/O or 4xI/
O read mode)
Serial Data Output (for 1 x I/O)/ Serial
SO/SIO1
Data Input & Output (for 2xI/O or 4xI/
O read mode)
SCLK
Clock Input
Write Protection Active Low or Serial
WP#/SIO2 Data Input & Output (for 4xI/O read
mode)Note 1
To pause the device without
deselecting the deviceNote 1or Serial
HOLD#/SIO3
Data Input & Output (for 4xI/O read
mode)
VCC
+ 1.8V Power Supply
GND
Ground
B
HOLD#/SIO3 SO/SIO1
C
Note:
1. HOLD# and WP# with internal pull high circuit.
SCLK WP#/SIO2
D
SI/SIO0
P/N: PM1755
VCC
HOLD#/SIO3
SCLK
SI/SIO0
SYMBOL
CS#
VCC
HOLD#/SIO3
SCLK
SI/SIO0
8-BALL BGA (WLCSP) TOP View
1
8
7
6
5
4. PIN DESCRIPTION
8-LAND WSON (6x5mm)
CS#
SO/SIO1
WP#/SIO2
GND
1
2
3
4
GND
8
REV. 1.9, JAN. 12, 2016
MX25U4033E
5. BLOCK DIAGRAM
X-Decoder
Address
Generator
SI/SIO0
SO/SIO1
SIO2 *
SIO3 *
Y-Decoder
Data
Register
WP# *
HOLD# *
RESET# *
CS#
SCLK
Memory Array
Sense
Amplifier
SRAM
Buffer
Mode
Logic
State
Machine
HV
Generator
Clock Generator
Output
Buffer
* Depends on part number options.
P/N: PM1755
9
REV. 1.9, JAN. 12, 2016
MX25U4033E
6. DATA PROTECTION
During power transition, there may be some false system level signals which result in inadvertent erasure or
programming. The device is designed to protect itself from these accidental write cycles.
The state machine will be reset as standby mode automatically during power up. In addition, the control register
architecture of the device constrains that the memory contents can only be changed after specific command
sequences have completed successfully.
In the following, there are several features to protect the system from the accidental write cycles during VCC
powerup and power-down or from system noise.
• Valid command length checking: The command length will be checked whether it is at byte base and completed
on byte boundary.
• Write Enable (WREN) command: WREN command is required to set the Write Enable Latch bit (WEL) before issuing other commands to change data. The WEL bit will return to resetting stage while the following conditions
occurred:
- Power-up
- Completion of Write Disable (WRDI) command
- Completion of Write Status Register (WRSR) command
- Completion of Page Program (PP) command
- Completion of Quad page program (4PP) command
- Completion of Sector Erase (SE) command
- Completion of Block Erase 32KB (BE32K) command
- Completion of Block Erase (BE) command
- Completion of Chip Erase (CE) command
- Completion of Write Protection Select (WPSEL) command
- Completion of Write Security Register (WRSCUR) command
- Completion of Single Block Lock/Unlock (SBLK/SBULK) command
- Completion of Gang Block Lock/Unlock (GBLK/GBULK) command
• Deep Power Down Mode: By entering deep power down mode, the flash device also is under protected from writing all commands except Release from deep power down mode command (RDP) and Read Electronic Signature
command (RES).
• Advanced Security Features: there are some protection and security features which protect content from inadvertent write and hostile access.
I. Block lock protection
- The Software Protected Mode (SPM) use (BP3, BP2, BP1, BP0) bits to allow part of memory to be protected as
read only. The protected area definition is shown as table of "Table 2. Protected Area Sizes", the protected areas
are more flexible which may protect various area by setting value of BP0-BP3 bits.
Please refer to table of "Table 2. Protected Area Sizes".
- The Hardware Protected Mode (HPM) use WP#/SIO2 to protect the (BP3, BP2, BP1, BP0) bits and SRWD bit.
If the system goes into four I/O read mode, the feature of HPM will be disabled.
P/N: PM1755
10
REV. 1.9, JAN. 12, 2016
MX25U4033E
Table 2. Protected Area Sizes
BP3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Status Bit
BP2
BP1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
Protect Level
BP0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0 (none)
1 (1block, protected block 7th)
2 (2blocks, protected block 6th~7th)
3 (4blocks, protected block 4th~7th)
4 (8blocks, protected all)
5 (8blocks, protected all)
6 (8blocks, protected all)
7 (8blocks, protected all)
8 (8blocks, protected all)
9 (8blocks, protected all)
10 (8blocks, protected all)
11 (8blocks, protected all)
12 (4blocks, protected block 0th~3rd)
13 (6blocks, protected block 0th~5th)
14 (7blocks, protected block 0th~6th)
15 (8blocks, protected all)
II. Additional 4K-bit secured OTP for unique identifier: to provide 4K-bit One-Time Program area for setting device unique serial number - Which may be set by factory or system maker. Please refer to "Table 3. 4K-bit Secured OTP Definition".
- Security register bit 0 indicates whether the secured OTP area is locked by factory or not.
- To program the 4K-bit secured OTP by entering 4K-bit secured OTP mode (with ENSO command), and going
through normal program procedure, and then exiting 4K-bit secured OTP mode by writing EXSO command.
- Customer may lock-down the customer lockable secured OTP by writing WRSCUR(write security register)
command to set customer lock-down bit1 as "1". Please refer to "Table 9. Security Register Definition" for security register bit definition and "Table 3. 4K-bit Secured OTP Definition" for address range definition.
Note:
Once lock-down whatever by factory or customer, it cannot be changed any more. While in 4K-bit Secured OTP
mode, array access is not allowed.
Table 3. 4K-bit Secured OTP Definition
Address range
Size
Standard Factory Lock
xxx000~xxx00F
128-bit
ESN (electrical serial number)
xxx010~xxx1FF
3968-bit
N/A
P/N: PM1755
11
Customer Lock
Determined by customer
REV. 1.9, JAN. 12, 2016
MX25U4033E
7. MEMORY ORGANIZATION
Table 4. Memory Organization
Block
(64KB)
7
Block
(32KB)
15
|
14
6
13
|
12
5
11
|
10
4
9
|
8
3
7
|
6
2
5
|
4
1
3
|
2
0
P/N: PM1755
1
|
0
Sector
(4KB)
127
:
112
111
:
96
95
:
80
79
:
64
63
:
48
47
:
32
31
:
16
15
:
2
1
0
Address Range
07F000h
:
070000h
06F000h
:
060000h
05F000h
:
050000h
04F000h
:
040000h
03F000h
:
030000h
02F000h
:
020000h
01F000h
:
010000h
00F000h
:
002000h
001000h
000000h
07FFFFh
:
070FFFh
06FFFFh
:
060FFFh
05FFFFh
:
050FFFh
04FFFFh
:
040FFFh
03FFFFh
:
030FFFh
02FFFFh
:
020FFFh
01FFFFh
:
010FFFh
00FFFFh
:
002FFFh
001FFFh
000FFFh
▲
Individual Sector Lock/Unlock
▼
▲
Individual Block Lock/Unlock
▼
▲
Individual Sector Lock/Unlock
▼
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REV. 1.9, JAN. 12, 2016
MX25U4033E
8. DEVICE OPERATION
1. Before a command is issued, status register should be checked to ensure device is ready for the intended operation.
2. When incorrect command is inputted to this device, it enters standby mode and remains in standby mode until
next CS# falling edge. In standby mode, SO pin of the device is High-Z.
3. When correct command is inputted to this device, it enters active mode and remains in active mode until next
CS# rising edge.
4. Input data is latched on the rising edge of Serial Clock (SCLK) and data is shifted out on the falling edge of
SCLK. The difference of Serial mode 0 and mode 3 is shown as "Figure 1. Serial Modes Supported" .
5. For the following instructions: RDID, RDSR, RDSCUR, READ, FAST_READ, RDSFDP, 2READ, 4READ, RES,
REMS, REMS2 and REMS4, the shifted-in instruction sequence is followed by a data-out sequence. After any
bit of data being shifted out, the CS# can be high. For the following instructions: WREN, WRDI, WRSR, SE,
BE32K, BE, CE, PP, 4PP, RDP, DP, WPSEL, SBLK, SBULK, GBLK, GBULK,ENSO, EXSO, and WRSCUR, the
CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed.
6. While a Write Status Register, Program or Erase operation is in progress, access to the memory array is neglected and will not affect the current operation of WRSCUR, WPSEL Write Status Register, Program and Erase.
Figure 1. Serial Modes Supported
CPOL
CPHA
shift in
(Serial mode 0)
0
0
SCLK
(Serial mode 3)
1
1
SCLK
SI
shift out
MSB
SO
MSB
Note:
CPOL indicates clock polarity of Serial master, CPOL=1 for SCLK high while idle, CPOL=0 for SCLK low while not
transmitting. CPHA indicates clock phase. The combination of CPOL bit and CPHA bit decides which Serial mode is
supported.
P/N: PM1755
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REV. 1.9, JAN. 12, 2016
MX25U4033E
9. HOLD FEATURE
HOLD# pin signal goes low to hold any serial communications with the device. The HOLD feature will not stop the
operation of write status register, programming, or erasing in progress.
The operation of HOLD requires Chip Select (CS#) keeping low and starts on falling edge of HOLD# pin signal
while Serial Clock (SCLK) signal is being low (if Serial Clock signal is not being low, HOLD operation will not start
until Serial Clock signal being low). The HOLD condition ends on the rising edge of HOLD# pin signal while Serial
Clock(SCLK) signal is being low (if Serial Clock signal is not being low, HOLD operation will not end until Serial
Clock being low).
≈
SI/SIO0
≈ ≈
SO/SIO1
(internal)
SO/SIO1
(External)
Don’t care
Valid Data
Valid Data
High_Z
Bit 6
Bit 5
Bit 6
≈
≈ ≈
SO/SIO1
(internal)
SO/SIO1
(External)
High_Z
Bit 7
Bit 5
≈
≈
SI/SIO0
≈
HOLD#
≈ ≈
SCLK
Valid Data
Bit 6
Bit 7
CS#
Don’t care
Bit 7
≈
HOLD#
≈ ≈
SCLK
≈
CS#
≈
Figure 2. Hold Condition Operation
Don’t care
Valid Data
Bit 7
Bit 7
Valid Data
Bit 6
High_Z
Don’t care
Bit 5
Bit 6
Bit 5
Valid Data
Bit 4
High_Z
Bit 3
Bit 4
Bit 3
During the HOLD operation, the Serial Data Output (SO) is high impedance when Hold# pin goes low and will keep
high impedance until Hold# pin goes high. The Serial Data Input (SI) is don't care if both Serial Clock (SCLK) and
Hold# pin goes low and will keep the state until SCLK goes low and Hold# pin goes high. If Chip Select (CS#) drives
high during HOLD operation, it will reset the internal logic of the device. To re-start communication with chip, the
HOLD# must be at high and CS# must be at low. (Note: The HOLD feature is disabled during Quad I/O mode.)
P/N: PM1755
14
REV. 1.9, JAN. 12, 2016
MX25U4033E
10. COMMAND DESCRIPTION
Table 5. Command Set
Read Commands
I/O
Command
(byte)
Clock rate
(MHz)
1st byte
2nd byte
3rd byte
4th byte
5th byte
Action
1
1
1
READ
FAST READ
RDSFDP
(normal read) (fast read data) (Read SFDP)
50
80
80
03 (hex)
AD1
AD2
AD3
0B (hex)
AD1
AD2
AD3
Dummy
n bytes read
out until CS#
goes high
5A (hex)
AD1
AD2
AD3
Dummy
Read SFDP
mode
n bytes read
out until CS#
goes high
2
4
2READ
(2 x I/O read
command)
4READ
(4 x I/O read
command)
80
70
BB (hex)
EB (hex)
AD1
AD1
AD2
AD2
AD3
AD3
Dummy
Dummy
n bytes read
n bytes read
out by 2 x I/O out by 4 x I/O
until CS# goes until CS# goes
high
high
Program/Erase Commands
Command
(byte)
1st byte
2nd byte
3rd byte
4th byte
Action
BE 32K
BE
(block erase
(block erase
32KB)
64KB)
06 (hex)
04 (hex)
20 (hex)
52 (hex)
D8 (hex)
AD1
AD1
AD1
AD2
AD2
AD2
AD3
AD3
AD3
to erase the
to erase the
to erase the
sets the (WEL)
resets the
to read out the to write new
(WEL) write
values of the values of the selected sector selected 32KB selected block
write enable
enable latch bit status register status register
block
latch bit
WREN
WRDI
(write enable) (write disable)
Command
(byte)
CE
(chip erase)
1st byte
2nd byte
3rd byte
4th byte
60 or C7 (hex)
Action
P/N: PM1755
PP
(page program)
RDSR
(read status
register)
05 (hex)
WRSR
(write status
register)
01 (hex)
Values
4PP
(Quad page
program)
DP
(Deep power
down)
02 (hex)
38 (hex)
AD1
AD1
AD2
AD2
AD3
AD3
to erase whole to program the quad input to
chip
selected page program the
selected page
15
SE
(sector erase)
B9 (hex)
RDP
(Release from
deep power
down)
AB (hex)
enters deep
power down
mode
release from
deep power
down mode
REV. 1.9, JAN. 12, 2016
MX25U4033E
Security/ID/Mode Setting/Reset Commands
Command
(byte)
1st byte
2nd byte
3rd byte
4th byte
Action
Command
(byte)
1st byte
2nd byte
3rd byte
4th byte
Action
Command
(byte)
1st byte
2nd byte
3rd byte
4th byte
Action
Note
RDID
RES (read
REMS (read REMS2 (read REMS4 (read ENSO (enter
EXSO (exit
(read identific- electronic ID)
electronic
electronic
electronic
secured OTP) secured OTP)
ation)
manufacturer manufacturer manufacturer
& device ID) & device ID) & device ID)
9F (hex)
AB (hex)
90 (hex)
EF (hex)
DF (hex)
B1 (hex)
C1 (hex)
x
x
X
x
x
x
X
x
ADD
ADD
x
ADD(Note 1)
outputs JEDEC to read out
output the
output the
output the
to enter the
to exit the
ID: 1-byte
1-byte Device Manufacturer Manufacturer Manufacturer 4K-bit secured 4K-bit secured
Manufacturer
ID
ID & Device ID ID & Device ID ID & Device ID OTP mode
OTP mode
ID & 2-byte
Device ID
RDSCUR
WRSCUR
SBLK
(read security (write security (single block
register)
register)
lock
2B (hex)
2F (hex)
36 (hex)
AD1
AD2
AD3
to read value to set the lock- individual block
(64K-byte) or
of security
down bit as
register
"1" (once lock- sector (4K-byte)
write protect
down, cannot
be update)
SBULK
RDBLOCK
(single block (block protect
unlock)
read)
39 (hex)
3C (hex)
AD1
AD1
AD2
AD2
AD3
AD3
individual block read individual
(64K-byte) or block or sector
sector (4K-byte) write protect
unprotect
status
GBLK
(gang block
lock)
7E (hex)
GBULK
(gang block
unlock)
98 (hex)
whole chip
write protect
whole chip
unprotect
WPSEL
(Write Protect
Selection)
68 (hex)
to enter and
enable individal
block protect
mode
1: ADD=00H will output the manufacturer ID first and ADD=01H will output device ID first.
2: It is not recommended to adopt any other code not in the command definition table, which will potentially enter the
hidden mode.
P/N: PM1755
16
REV. 1.9, JAN. 12, 2016
MX25U4033E
10-1.
Write Enable (WREN)
The Write Enable (WREN) instruction is for setting Write Enable Latch (WEL) bit. For those instructions like PP, 4PP,
SE, BE32K, BE, CE, WPSEL, WRSCUR, SBLK, SBULK, GBLK, GBULK and WRSR, which are intended to change
the device content WEL bit should be set every time after the WREN instruction setting the WEL bit.
The sequence of issuing WREN instruction is: CS# goes low→sending WREN instruction code→ CS# goes high.
(Please refer to "Figure 14. Write Enable (WREN) Sequence (Command 06)")
10-2.
Write Disable (WRDI)
The Write Disable (WRDI) instruction is to reset Write Enable Latch (WEL) bit.
The sequence of issuing WRDI instruction is: CS# goes low→sending WRDI instruction code→CS# goes high.
(Please refer to "Figure 15. Write Disable (WRDI) Sequence (Command 04)")
The WEL bit is reset by following situations:
- Power-up
- Completion of Write Disable (WRDI) instruction
- Completion of Write Status Register (WRSR) instruction
- Completion of Page Program (PP) instruction
- Completion of Quad Page Program (4PP) instruction
- Completion of Sector Erase (SE) instruction
- Completion of Block Erase 32KB (BE32K) instruction
- Completion of Block Erase (BE) instruction
- Completion of Chip Erase (CE) instruction
- Completion of Write Protection Select (WPSEL) instruction
- Completion of Write Security Register (WRSCUR) instruction
- Completion of Single Block Lock/Unlock (SBLK/SBULK) instruction
- Completion of Gang Block Lock/Unlock (GBLK/GBULK) instruction
10-3.
Read Identification (RDID)
The RDID instruction is to read the manufacturer ID of 1-byte and followed by Device ID of 2-byte. The MXIC Manufacturer ID is C2(hex), the memory type ID is 25(hex) as the first-byte device ID, and the individual device ID of
second-byte ID are listed as table of "ID Definitions". (Please refer to "Table 8. ID Definitions")
The sequence of issuing RDID instruction is: CS# goes low→ sending RDID instruction code→24-bits ID data out
on SO→ to end RDID operation can drive CS# to high at any time during data out. (Please refer to "Figure 16. Read
Identification (RDID) Sequence (Command 9F)")
While Program/Erase operation is in progress, it will not decode the RDID instruction, therefore there's no effect on
the cycle of program/erase operation which is currently in progress. When CS# goes high, the device is at standby
stage.
10-4.
Read Status Register (RDSR)
The RDSR instruction is for reading Status Register Bits. The Read Status Register can be read at any time (even in
program/erase/WPSEL/WRSCUR/write status register condition). It is recommended to check the Write in Progress (WIP)
bit before sending a new instruction when a program, erase, or write status register operation is in progress.
P/N: PM1755
17
REV. 1.9, JAN. 12, 2016
MX25U4033E
The sequence of issuing RDSR instruction is: CS# goes low→ sending RDSR instruction code→ Status Register data
out on SO. (Please refer to "Figure 17. Read Status Register (RDSR) Sequence (Command 05)")
For user to check if Program/Erase operation is finished or not, RDSR instruction flow are shown as follows:
Program/Erase Flow with Read Array Data
start
WREN command
RDSR command*
WEL=1?
No
Yes
Program/erase command
Write program data/address
(Write erase address)
RDSR command
WIP=0?
No
Yes
RDSR command
Read WEL=0, BP[3:0], QE,
and SRWD data
Read array data
(same address of PGM/ERS)
No
Verify OK?
Yes
Program/erase successfully
Program/erase
another block?
Program/erase fail
Yes
* Issue RDSR to check BP[3:0].
* If WPSEL = 1, issue RDBLOCK to check the block status.
No
Program/erase completed
P/N: PM1755
18
REV. 1.9, JAN. 12, 2016
MX25U4033E
Program/Erase Flow without Read Array Data (read P_FAIL/E_FAIL flag)
start
WREN command
RDSR command*
WEL=1?
No
Yes
Program/erase command
Write program data/address
(Write erase address)
RDSR command
WIP=0?
No
Yes
RDSR command
Read WEL=0, BP[3:0], QE,
and SRWD data
RDSCUR command
Yes
P_FAIL/E_FAIL=1 ?
No
Program/erase fail
Program/erase successfully
Program/erase
another block?
No
Yes
* Issue RDSR to check BP[3:0].
* If WPSEL = 1, issue RDBLOCK to check the block status.
Program/erase completed
P/N: PM1755
19
REV. 1.9, JAN. 12, 2016
MX25U4033E
WRSR Flow
start
WREN command
RDSR command
No
WEL=1?
Yes
WRSR command
Write status register data
RDSR command
No
WIP=0?
Yes
RDSR command
Read WEL=0, BP[3:0], QE,
and SRWD data
No
Verify OK?
Yes
WRSR successfully
P/N: PM1755
20
WRSR fail
REV. 1.9, JAN. 12, 2016
MX25U4033E
The definition of the status register bits is as below:
WIP bit. The Write in Progress (WIP) bit, a volatile bit, indicates whether the device is busy in program/erase/write status register progress. When WIP bit sets to 1, which means the device is busy in program/erase/write status register
progress. When WIP bit sets to 0, which means the device is not in progress of program/erase/write status register
cycle.
WEL bit. The Write Enable Latch (WEL) bit is a volatile bit that is set to “1” by the WREN instruction. WEL needs to be
set to “1” before the device can accept program and erase instructions, otherwise the program and erase instructions
are ignored. WEL automatically clears to “0” when a program or erase operation completes. To ensure that both WIP
and WEL are “0” and the device is ready for the next program or erase operation, it is recommended that WIP be
confirmed to be “0” before checking that WEL is also “0”. If a program or erase instruction is applied to a protected
memory area, the instruction will be ignored and WEL will clear to “0”.
BP3, BP2, BP1, BP0 bits. The Block Protect (BP3, BP2, BP1, BP0) bits, non-volatile bits, indicate the protected area (as
defined in "Table 2. Protected Area Sizes") of the device to against the program/erase instruction without hardware
protection mode being set. To write the Block Protect (BP3, BP2, BP1, BP0) bits requires the Write Status Register (WRSR)
instruction to be executed. Those bits define the protected area of the memory to against Page Program (PP), Sector
Erase (SE), Block Erase 32KB (BE32K), Block Erase (BE) and Chip Erase (CE) instructions (only if Block Protect bits
(BP3:BP0) set to 0, the CE instruction can be executed). The BP3, BP2, BP1, BP0 bits are "0" as default. Which is unprotected.
QE bit. The Quad Enable (QE) bit, non-volatile bit, while it is "0" (factory default), it performs non-Quad and WP# is
enabled. While QE is "1", it performs Quad I/O mode and WP# is disabled. In the other word, if the system goes into
four I/O mode (QE=1), the features of HPM and HOLD will be disabled.
SRWD bit. The Status Register Write Disable (SRWD) bit, non-volatile bit, is operated together with Write Protection
(WP#/SIO2) pin for providing hardware protection mode. The hardware protection mode requires SRWD sets to 1 and
WP#/SIO2 pin signal is low stage. In the hardware protection mode, the Write Status Register (WRSR) instruction is
no longer accepted for execution and the SRWD bit and Block Protect bits (BP3, BP2, BP1, BP0) are read only. The
SRWD bit defaults to be "0".
Table 6. Status Register
bit7
bit6
SRWD (status
register write
protect)
QE
(Quad
Enable)
1=status
1=Quad
register write
disabled
Enable
0=status
0=not Quad
register write
Enable
enabled
bit5
BP3
(level of
protected
block)
(note 1)
bit4
BP2
(level of
protected
block)
bit3
BP1
(level of
protected
block)
(note 1)
(note 1)
Non-volatile Non-volatile Non-volatile Non-volatile Non-volatile
bit
bit
bit
bit
bit
Note 1: Please refer to the "Table 2. Protected Area Sizes".
P/N: PM1755
21
bit2
BP0
(level of
protected
block)
(note 1)
Non-volatile
bit
bit1
bit0
WEL
WIP
(write enable
(write in
latch)
progress bit)
1=write
1=write
enable
operation
0=not write 0=not in write
enable
operation
volatile bit
volatile bit
REV. 1.9, JAN. 12, 2016
MX25U4033E
10-5.
Write Status Register (WRSR)
The WRSR instruction is for changing the values of Status Register Bits. Before sending WRSR instruction, the
Write Enable (WREN) instruction must be decoded and executed to set the Write Enable Latch (WEL) bit in advance. The WRSR instruction can change the value of Block Protect (BP3, BP2, BP1, BP0) bits to define the protected area of memory (as shown in "Table 2. Protected Area Sizes"). The WRSR also can set or reset the Quad
enable (QE) bit and set or reset the Status Register Write Disable (SRWD) bit in accordance with Write Protection (WP#/
SIO2) pin signal, but has no effect on bit1(WEL) and bit0 (WIP) of the status register. The WRSR instruction cannot
be executed once the Hardware Protected Mode (HPM) is entered.
The sequence of issuing WRSR instruction is: CS# goes low→ sending WRSR instruction code→ Status Register
data on SI→CS# goes high. (Please refer to "Figure 18. Write Status Register (WRSR) Sequence (Command 01)"
)
The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed.
The self-timed Write Status Register cycle time (tW) is initiated as soon as Chip Select (CS#) goes high. The Write
in Progress (WIP) bit still can be check out during the Write Status Register cycle is in progress. The WIP sets 1
during the tW timing, and sets 0 when Write Status Register Cycle is completed, and the Write Enable Latch (WEL)
bit is reset.
Table 7. Protection Modes
Mode
Software protection
mode (SPM)
Hardware protection
mode (HPM)
Status register condition
WP# and SRWD bit status
Memory
Status register can be written
in (WEL bit is set to "1") and
the SRWD, BP0-BP3
bits can be changed
WP#=1 and SRWD bit=0, or
WP#=0 and SRWD bit=0, or
WP#=1 and SRWD=1
The protected area
cannot
be program or erase.
The SRWD, BP0-BP3 of
status register bits cannot be
changed
WP#=0, SRWD bit=1
The protected area
cannot
be program or erase.
Note:
1. As defined by the values in the Block Protect (BP3, BP2, BP1, BP0) bits of the Status Register, as shown in "Table 2.
Protected Area Sizes".
As the above table showing, the summary of the Software Protected Mode (SPM) and Hardware Protected Mode (HPM).
Software Protected Mode (SPM):
- When SRWD bit=0, no matter WP#/SIO2 is low or high, the WREN instruction may set the WEL bit and can
change the values of SRWD, BP3, BP2, BP1, BP0. The protected area, which is defined by BP3, BP2, BP1,
BP0, is at software protected mode (SPM).
- When SRWD bit=1 and WP#/SIO2 is high, the WREN instruction may set the WEL bit can change the values of
SRWD, BP3, BP2, BP1, BP0. The protected area, which is defined by BP3, BP2, BP1, BP0, is at software protected mode (SPM)
Note:
If SRWD bit=1 but WP#/SIO2 is low, it is impossible to write the Status Register even if the WEL bit has previously
been set. It is rejected to write the Status Register and not be executed.
P/N: PM1755
22
REV. 1.9, JAN. 12, 2016
MX25U4033E
Hardware Protected Mode (HPM):
- When SRWD bit=1, and then WP#/SIO2 is low (or WP#/SIO2 is low before SRWD bit=1), it enters the hardware
protected mode (HPM). The data of the protected area is protected by software protected mode by BP3, BP2,
BP1, BP0 and hardware protected mode by the WP#/SIO2 to against data modification.
Note:
To exit the hardware protected mode requires WP#/SIO2 driving high once the hardware protected mode is entered.
If the WP#/SIO2 pin is permanently connected to high, the hardware protected mode can never be entered; only
can use software protected mode via BP3, BP2, BP1, BP0.
If the system enter Quad I/O QE=1, the feature of HPM will be disabled.
10-6.
Read Data Bytes (READ)
The read instruction is for reading data out. The address is latched on rising edge of SCLK, and data shifts out on
the falling edge of SCLK at a maximum frequency fR. The first address byte can be at any location. The address
is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can
be read out at a single READ instruction. The address counter rolls over to 0 when the highest address has been
reached.
The sequence of issuing READ instruction is: CS# goes low→sending READ instruction code→ 3-byte address
on SI→ data out on SO→to end READ operation can use CS# to high at any time during data out. (Please refer to
"Figure 19. Read Data Bytes (READ) Sequence (Command 03) (50MHz)")
10-7.
Read Data Bytes at Higher Speed (FAST_READ)
The FAST_READ instruction is for quickly reading data out. The address is latched on rising edge of SCLK, and
data of each bit shifts out on the falling edge of SCLK at a maximum frequency fC. The first address byte can be at
any location. The address is automatically increased to the next higher address after each byte data is shifted out,
so the whole memory can be read out at a single FAST_READ instruction. The address counter rolls over to 0 when
the highest address has been reached.
The sequence of issuing FAST_READ instruction is: CS# goes low→ sending FAST_READ instruction code→
3-byte address on SI→1-dummy byte (default) address on SI→ data out on SO→ to end FAST_READ operation
can use CS# to high at any time during data out. (Please refer to "Figure 20. Read at Higher Speed (FAST_READ)
Sequence (Command 0B)")
While Program/Erase/Write Status Register cycle is in progress, FAST_READ instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle.
10-8.
2 x I/O Read Mode (2READ)
The 2READ instruction enable double throughput of Serial NOR Flash in read mode. The address is latched on
rising edge of SCLK, and data of every two bits (interleave on 2 I/O pins) shift out on the falling edge of SCLK at a
maximum frequency fT. The first address byte can be at any location. The address is automatically increased to the
next higher address after each byte data is shifted out, so the whole memory can be read out at a single 2READ
instruction. The address counter rolls over to 0 when the highest address has been reached. Once writing 2READ
instruction, the following address/dummy/data out will perform as 2-bit instead of previous 1-bit.
P/N: PM1755
23
REV. 1.9, JAN. 12, 2016
MX25U4033E
The sequence of issuing 2READ instruction is: CS# goes low→ sending 2READ instruction→ 24-bit address interleave on SIO1 & SIO0→ 4 dummy cycles on SIO1 & SIO0→ data out interleave on SIO1 & SIO0→ to end 2READ
operation can use CS# to high at any time during data out (Please refer to "Figure 21. 2 x I/O Read Mode Sequence
(Command BB)").
While Program/Erase/Write Status Register cycle is in progress, 2READ instruction is rejected without any impact on
the Program/Erase/Write Status Register current cycle.
10-9.
4 x I/O Read Mode (4READ)
The 4READ instruction enable quad throughput of Serial NOR Flash in read mode. A Quad Enable (QE) bit of status
Register must be set to "1" before sending the 4READ instruction. The address is latched on rising edge of SCLK,
and data of every four bits (interleave on 4 I/O pins) shift out on the falling edge of SCLK at a maximum frequency
fQ. The first address byte can be at any location. The address is automatically increased to the next higher address
after each byte data is shifted out, so the whole memory can be read out at a single 4READ instruction. The address
counter rolls over to 0 when the highest address has been reached. Once writing 4READ instruction, the following
address/dummy/data out will perform as 4-bit instead of previous 1-bit.
The sequence of issuing 4READ instruction is: CS# goes low→ sending 4READ instruction→ 24-bit address interleave on SIO3, SIO2, SIO1 & SIO0→2+4 dummy cycles→data out interleave on SIO3, SIO2, SIO1 & SIO0→ to end
4READ operation can use CS# to high at any time during data out. (Please refer to "Figure 22. 4 x I/O Read Mode
Sequence (Command EB)")
While Program/Erase/Write Status Register cycle is in progress, 4READ instruction is rejected without any impact on
the Program/Erase/Write Status Register current cycle.
P/N: PM1755
24
REV. 1.9, JAN. 12, 2016
MX25U4033E
10-10. Performance Enhance Mode
The device could waive the command cycle bits if the two cycle bits after address cycle toggles. (Please note "Figure 22. 4 x I/O Read Mode Sequence (Command EB)")
After entering enhance mode, following CS# go high, the device will stay in the read mode and treat CS# go low of
the first clock as address instead of command cycle.
Another sequence of issuing 4READ instruction especially useful in random access is : CS# goes low→sending 4
READ instruction→3-bytes address interleave on SIO3, SIO2, SIO1 & SIO0 →performance enhance toggling bit
P[7:0]→ 4 dummy cycles →data out still CS# goes high → CS# goes low (reduce 4Read instruction) →24-bit random access address (Please refer to "Figure 23. 4 x I/O Read Enhance Performance Mode Sequence (Command
EB)").
In the performance-enhancing mode, P[7:4] must be toggling with P[3:0] ; likewise P[7:0]=A5h, 5Ah, F0h or 0Fh can
make this mode continue and reduce the next 4READ instruction. Once P[7:4] is no longer toggling with P[3:0]; likewise P[7:0]=FFh,00h,AAh or 55h and afterwards CS# is raised and then lowered, the system then will escape from
performance enhance mode and return to normal operation.
10-11. Sector Erase (SE)
The Sector Erase (SE) instruction is for erasing the data of the chosen sector to be "1". The instruction is used for
any 4K-byte sector. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before
sending the Sector Erase (SE). Any address of the sector (see "Table 4. Memory Organization") is a valid address
for Sector Erase (SE) instruction. The CS# must go high exactly at the byte boundary (the least significant bit of the
address been latched-in); otherwise, the instruction will be rejected and not executed.
Address bits [Am-A12] (Am is the most significant address) select the sector address.
The sequence of issuing SE instruction is: CS# goes low→ sending SE instruction code→ 3-byte address on SI→
CS# goes high. (Please refer to "Figure 26. Sector Erase (SE) Sequence (Command 20)")
The self-timed Sector Erase Cycle time (tSE) is initiated as soon as Chip Select (CS#) goes high. The Write in
Progress (WIP) bit still can be checked while the Sector Erase cycle is in progress. The WIP sets during the tSE
timing, and clears when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is cleared. If the
sector is protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Sector Erase (SE) instruction will
not be executed on the sector.
P/N: PM1755
25
REV. 1.9, JAN. 12, 2016
MX25U4033E
10-12. Block Erase (BE32K)
The Block Erase (BE32K) instruction is for erasing the data of the chosen block to be "1". The instruction is used
for 32K-byte block erase operation. A Write Enable (WREN) instruction must be executed to set the Write Enable
Latch (WEL) bit before sending the Block Erase (BE32K). Any address of the block (see "Table 4. Memory Organization") is a valid address for Block Erase (BE32K) instruction. The CS# must go high exactly at the byte boundary (the
least significant bit of address byte been latched-in); otherwise, the instruction will be rejected and not executed.
The sequence of issuing BE32K instruction is: CS# goes low→ sending BE32K instruction code→ 3-byte address
on SI→CS# goes high. (Please refer to "Figure 27. Block Erase 32KB (BE32K) Sequence (Command 52)")
The self-timed Block Erase Cycle time (tBE32K) is initiated as soon as Chip Select (CS#) goes high. The Write in
Progress (WIP) bit still can be checked while he Block Erase cycle is in progress. The WIP sets during the tBE32K
timing, and clears when Block Erase Cycle is completed, and the Write Enable Latch (WEL) bit is cleared. If the
block is protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Block Erase (tBE32K) instruction
will not be executed on the block.
10-13. Block Erase (BE)
The Block Erase (BE) instruction is for erasing the data of the chosen block to be "1". The instruction is used
for 64K-byte block erase operation. A Write Enable (WREN) instruction must be executed to set the Write Enable
Latch (WEL) bit before sending the Block Erase (BE). Any address of the block (Please refer to "Table 4. Memory
Organization") is a valid address for Block Erase (BE) instruction. The CS# must go high exactly at the byte boundary (the
least significant bit of address byte been latched-in); otherwise, the instruction will be rejected and not executed.
The sequence of issuing BE instruction is: CS# goes low→ sending BE instruction code→ 3-byte address on SI→
CS# goes high. (Please refer to "Figure 28. Block Erase (BE) Sequence (Command D8)")
The self-timed Block Erase Cycle time (tBE) is initiated as soon as Chip Select (CS#) goes high. The Write in
Progress (WIP) bit still can be checked while the Block Erase cycle is in progress. The WIP sets during the tBE
timing, and clears when Block Erase Cycle is completed, and the Write Enable Latch (WEL) bit is cleared. If the
block is protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Block Erase (BE) instruction will not
be executed on the block.
10-14. Chip Erase (CE)
The Chip Erase (CE) instruction is for erasing the data of the whole chip to be "1". A Write Enable (WREN) instruction must be executed to set the Write Enable Latch (WEL) bit before sending the Chip Erase (CE). The CS# must
go high exactly at the byte boundary, otherwise the instruction will be rejected and not executed.
The sequence of issuing CE instruction is: CS# goes low→sending CE instruction code→CS# goes high. (Please
refer to "Figure 29. Chip Erase (CE) Sequence (Command 60 or C7)")
The self-timed Chip Erase Cycle time (tCE) is initiated as soon as Chip Select (CS#) goes high. The Write in
Progress (WIP) bit still can be checked while the Chip Erase cycle is in progress. The WIP sets during the tCE timing, and clears when Chip Erase Cycle is completed, and the Write Enable Latch (WEL) bit is cleared. If the chip is
protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Chip Erase (CE) instruction will not be executed. It will be only executed when BP3, BP2, BP1, BP0 all set to "0".
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MX25U4033E
10-15. Page Program (PP)
The Page Program (PP) instruction is for programming the memory to be "0". A Write Enable (WREN) instruction
must be executed to set the Write Enable Latch (WEL) bit before sending the Page Program (PP). The device programs only the last 256 data bytes sent to the device. If the entire 256 data bytes are going to be programmed, A7A0 (the eight least significant address bits) should be cleared. The last address byte (the 8 least significant address
bits, A7-A0) should be set to 0 for 256 bytes page program. If A7-A0 are not all zero, transmitted data that exceed
page length are programmed from the starting address (24-bit address that last 8 bit are all 0) of currently selected
page. If the data bytes sent to the device exceeds 256, the last 256 data byte is programmed at the request page
and previous data will be disregarded. If the data bytes sent to the device has not exceeded 256, the data will be
programmed at the request address of the page. There will be no effort on the other data bytes of the same page.
The sequence of issuing PP instruction is: CS# goes low→ sending PP instruction code→ 3-byte address on SI→ at
least 1-byte on data on SI→ CS# goes high. (Please refer to "Figure 24. Page Program (PP) Sequence (Command
02)")
The CS# must be kept to low during the whole Page Program cycle; The CS# must go high exactly at the byte
boundary (the latest eighth bit of data being latched in), otherwise the instruction will be rejected and will not be executed.
The self-timed Page Program Cycle time (tPP) is initiated as soon as Chip Select (CS#) goes high. The Write in
Progress (WIP) bit still can be checked while the Page Program cycle is in progress. The WIP sets during the tPP
timing, and clears when Page Program Cycle is completed, and the Write Enable Latch (WEL) bit is cleared. If the
page is protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Page Program (PP) instruction will
not be executed.
10-16. 4 x I/O Page Program (4PP)
The Quad Page Program (4PP) instruction is for programming the memory to be "0". A Write Enable (WREN) instruction must be executed to set the Write Enable Latch (WEL) bit and Quad Enable (QE) bit must be set to "1"
before sending the Quad Page Program (4PP). The Quad Page Programming takes four pins: SIO0, SIO1, SIO2,
and SIO3 as address and data input, which can improve programmer performance and the effectiveness of application of lower clock less than 70MHz. For system with faster clock, the Quad page program cannot provide more performance, because the required internal page program time is far more than the time data flows in. Therefore, we
suggest that while executing this command (especially during sending data), user can slow the clock speed down to
70MHz below. The other function descriptions are as same as standard page program.
The sequence of issuing 4PP instruction is: CS# goes low→ sending 4PP instruction code→ 3-byte address on
SIO[3:0]→ at least 1-byte on data on SIO[3:0]→CS# goes high. (Please refer to "Figure 25. 4 x I/O Page Program (4PP)
Sequence (Command 38)")
If the page protected by BP3 ~ 0 (WPSEL=0) or by individual lock (WPSEL=1), the Quad page program (4PP)
instruction will not be executed.
10-17. Deep Power-down (DP)
The Deep Power-down (DP) instruction is for setting the device to minimize the power consumption (the standby
current is reduced from ISB1 to ISB2). The Deep Power-down mode requires the Deep Power-down (DP) instruction to enter, during the Deep Power-down mode, the device is not active and all Write/Program/Erase instruction
are ignored.
The sequence of issuing DP instruction is: CS# goes low→sending DP instruction code→CS# goes high.
(Please refer to "Figure 30. Deep Power-down (DP) Sequence (Command B9)")
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Once the DP instruction is set, all instruction will be ignored except the Release from Deep Power-down mode (RDP)
and Read Electronic Signature (RES) instruction. (Those instructions allow the ID being reading out). When Powerdown, or software reset command the deep power-down mode automatically stops, and when power-up, the device
automatically is in standby mode. For DP instruction the CS# must go high exactly at the byte boundary (the latest
eighth bit of instruction code been latched-in); otherwise, the instruction will not executed. As soon as Chip Select (CS#)
goes high, a delay of tDP is required before entering the Deep Power-down mode.
10-18. Release from Deep Power-down (RDP), Read Electronic Signature (RES)
The Release from Deep Power-down (RDP) instruction is completed by driving Chip Select (CS#) High. When Chip
Select (CS#) is driven High, the device is put in the Stand-by Power mode. If the device was not previously in the
Deep Power-down mode, the transition to the Stand-by Power mode is immediate. If the device was previously in
the Deep Power-down mode, though, the transition to the Stand-by Power mode is delayed by tRES2, and Chip Select (CS#) must remain High for at least tRES2(max), as specified in "Table 14. AC Characteristics". AC Characteristics. Once in the Stand-by Power mode, the device waits to be selected, so that it can receive, decode and execute
instructions. The RDP instruction is only for releasing from Deep Power Down Mode.
RES instruction is for reading out the old style of 8-bit Electronic Signature, whose values are shown as "Table 8. ID
Definitions" on next page. This is not the same as RDID instruction. It is not recommended to use for new design.
For new design, please use RDID instruction.
The sequence is shown as "Figure 31. RDP and Read Electronic Signature (RES) Sequence (Command AB)" and
"Figure 32. Release from Deep Power-down (RDP) Sequence (Command AB)". Even in Deep power-down mode,
the RDP and RES are also allowed to be executed, only except the device is in progress of program/erase/write cycle; there's no effect on the current program/erase/write cycle in progress.
The RES instruction is ended by CS# goes high after the ID been read out at least once. The ID outputs repeatedly if continuously send the additional clock cycles on SCLK while CS# is at low. If the device was not previously
in Deep Power-down mode, the device transition to standby mode is immediate. If the device was previously in
Deep Power-down mode, there's a delay of tRES2 to transit to standby mode, and CS# must remain to high at least
tRES2(max). Once in the standby mode, the device waits to be selected, so it can be receive, decode, and execute
instruction.
10-19. Read Electronic Manufacturer ID & Device ID (REMS), (REMS2), (REMS4)
The REMS, REMS2 and REMS4 instruction provides both the JEDEC assigned Manufacturer ID and the specific
Device ID.
The instruction is initiated by driving the CS# pin low and shift the instruction code "90h", "DFh" or "EFh" followed
by two dummy bytes and one bytes address (A7~A0). After which, the Manufacturer ID for MXIC (C2h) and the Device ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown in "Figure 33. Read
Electronic Manufacturer & Device ID (REMS) Sequence (Command 90/EF/DF)". The Device ID values are listed in
"Table 8. ID Definitions". If the one-byte address is initially set to 01h, then the Device ID will be read first and then
followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously, alternating from one to
the other. The instruction is completed by driving CS# high.
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Table 8. ID Definitions
Command Type
RDID (JEDEC ID)
manufacturer ID
C2
RES
REMS/REMS2/REMS4
manufacturer ID
C2
MX25U4033E
memory type
25
electronic ID
33
device ID
33
memory density
33
10-20. Enter Secured OTP (ENSO)
The ENSO instruction is for entering the additional 4K-bit secured OTP mode. While device is in 4K-bit secured
OTP mode, main array access is not available. The additional 4K-bit secured OTP is independent from main array,
and may be used to store unique serial number for system identifier. After entering the Secured OTP mode, follow
standard read or program procedure to read out the data or update data. The Secured OTP data cannot be updated
again once it is lock-down.
The sequence of issuing ENSO instruction is: CS# goes low→ sending ENSO instruction to enter Secured OTP
mode→ CS# goes high.
Please note that WRSR/WRSCUR/WPSEL commands are not acceptable during the access of secure OTP region,
once security OTP is lock down, only read related commands are valid.
10-21. Exit Secured OTP (EXSO)
The EXSO instruction is for exiting the additional 4K-bit secured OTP mode.
The sequence of issuing EXSO instruction is: CS# goes low→ sending EXSO instruction to exit Secured OTP
mode→ CS# goes high.
10-22. Read Security Register (RDSCUR)
The RDSCUR instruction is for reading the value of Security Register bits. The Read Security Register can be read
at any time (even in program/erase/write status register/write security register condition) and continuously.
The sequence of issuing RDSCUR instruction is : CS# goes low→sending RDSCUR instruction→Security Register
data out on SO→ CS# goes high. (Please see "Figure 34. Read Security Register (RDSCUR) Sequence (Command
2B)")
The definition of the Security Register bits is as below:
Secured OTP Indicator bit. The Secured OTP indicator bit shows the chip is locked by factory or not. When it is
"0", it indicates non-factory lock; "1" indicates factory-lock.
Lock-down Secured OTP (LDSO) bit. By writing WRSCUR instruction, the LDSO bit may be set to "1" for customer lock-down purpose. However, once the bit is set to "1" (lock-down), the LDSO bit and the 4K-bit Secured OTP
area cannot be updated any more.
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Table 9. Security Register Definition
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
WPSEL
E_FAIL
P_FAIL
Reserved
Reserved
Reserved
0=normal
WP mode
1=individual
mode
(default=0)
0=normal
Erase
succeed
1=individual
Erase failed
(default=0)
0=normal
Program
succeed
1=indicate
Program
failed
(default=0)
-
-
-
Non-volatile
bit (OTP)
Volatile bit
Volatile bit
Volatile bit
Volatile bit
Volatile bit
Bit1
Bit0
LDSO
Secured OTP
(indicate if
indicator bit
lock-down)
0 = not lockdown
0 = non1 = lock-down
factory
(cannot
lock
program/
1 = factory
erase
lock
OTP)
Non-volatile
Non-volatile
bit
bit (OTP)
(OTP)
10-23. Write Security Register (WRSCUR)
The WRSCUR instruction is for setting the values of Security Register Bits. The WREN (Write Enable) instruction is
required before issuing WRSCUR instruction. The WRSCUR instruction may change the values of bit1 (LDSO bit)
for customer to lock-down the 4K-bit Secured OTP area. Once the LDSO bit is set to "1", the Secured OTP area
cannot be updated any more. The LDSO bit is an OTP bit. Once the LDSO bit is set, the value of LDSO bit can not
be altered any more.
The sequence of issuing WRSCUR instruction is :CS# goes low→ sending WRSCUR instruction → CS# goes high.
(Please see "Figure 35. Write Security Register (WRSCUR) Sequence (Command 2F)".)
The CS# must go high exactly at the boundary; otherwise, the instruction will be rejected and not executed.
10-24. Write Protection Selection (WPSEL)
When the system accepts and executes WPSEL instruction, bit 7 in the security register will be set. The WREN (Write
Enable) instruction is required before issuing WPSEL instruction. It will activate SBLK, SBULK, RDBLOCK, GBLK,
GBULK etc instructions to conduct block lock protection and replace the original Software Protect Mode (SPM) use
(BP3~BP0) indicated block methods.
The sequence of issuing WPSEL instruction is: CS# goes low → sending WPSEL instruction to enter the individual
block protect mode→ CS# goes high.
Every time after the system is powered-on, the Security Register bit 7 is checked. If WPSEL=1, then all the blocks
and sectors will be write-protected by default. User may only unlock the blocks or sectors via SBULK and GBULK
instructions. Program or erase functions can only be operated after the Unlock instruction is executed.
Once WPSEL is set, it cannot be changed.
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WPSEL instruction function flow is as follows:
Figure 3. WPSEL Flow
start
WREN command
RDSCUR(2Bh) command
Yes
WPSEL=1?
No
WPSEL disable,
block protected by BP[3:0]
WPSEL(68h) command
RDSR command
WIP=0?
No
Yes
RDSCUR(2Bh) command
WPSEL=1?
No
Yes
WPSEL set successfully
WPSEL set fail
WPSEL enable.
Block protected by individual lock
(SBLK, SBULK,
… etc).
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10-25. Single Block Lock/Unlock Protection (SBLK/SBULK)
These instructions are only effective after WPSEL was executed. The SBLK instruction is for write protection a
specified block (or sector) of memory, using AMAX-A16 or (AMAX-A12) address bits to assign a 64Kbyte block (or 4K
bytes sector) to be protected as read only. The SBULK instruction will cancel the block (or sector) write protection
state. This feature allows user to stop protecting the entire block (or sector) through the chip unprotect command
(GBULK).
The WREN (Write Enable) instruction is required before issuing SBLK/SBULK instruction.
The sequence of issuing SBLK/SBULK instruction is: CS# goes low → send SBLK/SBULK (36h/39h)
instruction→send 3 address bytes assign one block (or sector) to be protected on SI pin → CS# goes high. The CS#
must go high exactly at the byte boundary, otherwise the instruction will be rejected and not be executed.
SBLK/SBULK instruction function flow is as follows:
Figure 4. Block Lock Flow
Start
RDSCUR(2Bh) command
WPSEL=1?
No
WPSEL command
Yes
WREN command
SBLK command
( 36h + 24bit address )
RDSR command
WIP=0?
No
Yes
RDBLOCK command
( 3Ch + 24bit address )
Data = FFh ?
No
Yes
Block lock successfully
Lock another block?
Block lock fail
Yes
No
Block lock
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completed
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REV. 1.9, JAN. 12, 2016
MX25U4033E
Figure 5. Block Unlock Flow
start
RDSCUR(2Bh) command
WPSEL=1?
No
WPSEL command
Yes
WREN command
SBULK command
( 39h + 24bit address )
RDSR command
No
WIP=0?
Yes
Unlock another block?
Yes
Unlock block completed?
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10-26. Read Block Lock Status (RDBLOCK)
This instruction is only effective after WPSEL was executed. The RDBLOCK instruction is for reading the status of
protection lock of a specified block (or sector), using AMAX-A16 (or AMAX-A12) address bits to assign a 64K bytes block (4K
bytes sector) and read protection lock status bit which the first byte of Read-out cycle. The status bit is"1" to indicate
that this block has be protected, that user can read only but cannot write/program /erase this block. The status bit is
"0" to indicate that this block hasn't be protected, and user can read and write this block.
The sequence of issuing RDBLOCK instruction is: CS# goes low → send RDBLOCK (3Ch) instruction → send 3
address bytes to assign one block on SI pin → read block's protection lock status bit on SO pin → CS# goes high.
10-27. Gang Block Lock/Unlock (GBLK/GBULK)
These instructions are only effective after WPSEL was executed. The GBLK/GBULK instruction is for enable/disable
the lock protection block of the whole chip.
The WREN (Write Enable) instruction is required before issuing GBLK/GBULK instruction.
The sequence of issuing GBLK/GBULK instruction is: CS# goes low → send GBLK/GBULK (7Eh/98h) instruction
→CS# goes high.
The CS# must go high exactly at the byte boundary, otherwise, the instruction will be rejected and not be executed.
P/N: PM1755
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REV. 1.9, JAN. 12, 2016
MX25U4033E
10-28. Read SFDP Mode (RDSFDP)
The Serial Flash Discoverable Parameter (SFDP) standard provides a consistent method of describing the
functional and feature capabilities of serial flash devices in a standard set of internal parameter tables. These
parameter tables can be interrogated by host system software to enable adjustments needed to accommodate
divergent features from multiple vendors. The concept is similar to the one found in the Introduction of JEDEC
Standard, JESD68 on CFI.
The sequence of issuing RDSFDP instruction is CS# goes low→send RDSFDP instruction (5Ah)→send 3 address
bytes on SI pin→send 1 dummy byte on SI pin→read SFDP code on SO→to end RDSFDP operation can use CS#
to high at any time during data out.
SFDP is a standard of JEDEC. JESD216. v1.0.
Figure 6. Read Serial Flash Discoverable Parameter (RDSFDP) Sequence
CS#
0
1
2
3
4
5
6
7
8
9 10
28 29 30 31
SCLK
Command
SI
SO
24 BIT ADDRESS
23 22 21
5Ah
3
2
1
0
High-Z
CS#
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
SCLK
Dummy Cycle
SI
7
6
5
4
3
2
1
0
DATA OUT 2
DATA OUT 1
SO
7
6
5
3
2
1
0
7
MSB
MSB
P/N: PM1755
4
35
6
5
4
3
2
1
0
7
MSB
REV. 1.9, JAN. 12, 2016
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Table 10. Signature and Parameter Identification Data Values
SFDP Table (JESD216) below is for MX25U4033EBAI-12G, MX25U4033EM1I-12G, MX25U4033EZNI-12G,
MX25U4033EZUI-12G and MX25U4033EZBI-12G
Description
SFDP Signature
Comment
Fixed: 50444653h
Add (h) DW Add Data (h/b) Data
(Byte)
(Bit)
(Note1)
(h)
00h
07:00
53h
53h
01h
15:08
46h
46h
02h
23:16
44h
44h
03h
31:24
50h
50h
SFDP Minor Revision Number
Start from 00h
04h
07:00
00h
00h
SFDP Major Revision Number
Start from 01h
This number is 0-based. Therefore,
0 indicates 1 parameter header.
05h
15:08
01h
01h
06h
23:16
01h
01h
07h
31:24
FFh
FFh
00h: it indicates a JEDEC specified
header.
08h
07:00
00h
00h
Start from 00h
09h
15:08
00h
00h
Start from 01h
0Ah
23:16
01h
01h
How many DWORDs in the
Parameter table
0Bh
31:24
09h
09h
0Ch
07:00
30h
30h
0Dh
15:08
00h
00h
0Eh
23:16
00h
00h
0Fh
31:24
FFh
FFh
it indicates Macronix manufacturer
ID
10h
07:00
C2h
C2h
Start from 00h
11h
15:08
00h
00h
Start from 01h
12h
23:16
01h
01h
How many DWORDs in the
Parameter table
13h
31:24
04h
04h
14h
07:00
60h
60h
15h
15:08
00h
00h
16h
23:16
00h
00h
17h
31:24
FFh
FFh
Number of Parameter Headers
Unused
ID number (JEDEC)
Parameter Table Minor Revision
Number
Parameter Table Major Revision
Number
Parameter Table Length
(in double word)
Parameter Table Pointer (PTP)
First address of JEDEC Flash
Parameter table
Unused
ID number
(Macronix manufacturer ID)
Parameter Table Minor Revision
Number
Parameter Table Major Revision
Number
Parameter Table Length
(in double word)
Parameter Table Pointer (PTP)
First address of Macronix Flash
Parameter table
Unused
P/N: PM1755
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Table 11. Parameter Table (0): JEDEC Flash Parameter Tables
SFDP Table below is for MX25U4033EBAI-12G, MX25U4033EM1I-12G, MX25U4033EZNI-12G,
MX25U4033EZUI-12G and MX25U4033EZBI-12G
Description
Comment
Block/Sector Erase sizes
00: Reserved, 01: 4KB erase,
10: Reserved,
11: not support 4KB erase
Write Granularity
0: 1Byte, 1: 64Byte or larger
Write Enable Instruction Required 0: not required
1: required 00h to be written to the
for Writing to Volatile Status
status register
Registers
Add (h) DW Add Data (h/b)
(Byte)
(Bit)
(Note1)
01b
02
1b
03
0b
30h
0: use 50h opcode,
1: use 06h opcode
Write Enable Opcode Select for
Note: If target flash status register is
Writing to Volatile Status Registers
nonvolatile, then bits 3 and 4 must
be set to 00b.
Contains 111b and can never be
Unused
changed
4KB Erase Opcode
01:00
31h
Data
(h)
E5h
04
0b
07:05
111b
15:08
20h
16
0b
18:17
00b
19
0b
20
1b
20h
(1-1-2) Fast Read (Note2)
0=not support 1=support
Address Bytes Number used in
addressing flash array
Double Transfer Rate (DTR)
Clocking
00: 3Byte only, 01: 3 or 4Byte,
10: 4Byte only, 11: Reserved
(1-2-2) Fast Read
0=not support 1=support
(1-4-4) Fast Read
0=not support 1=support
21
1b
(1-1-4) Fast Read
0=not support 1=support
22
0b
23
1b
33h
31:24
FFh
37h:34h
31:00
003F FFFFh
0=not support 1=support
32h
Unused
Unused
Flash Memory Density
(1-4-4) Fast Read Number of Wait
states (Note3)
(1-4-4) Fast Read Number of
Mode Bits (Note4)
0 0000b: Not supported; 0 0100b: 4
0 0110b: 6; 0 1000b: 8
Mode Bits:
000b: Not supported; 010b: 2 bits
(1-4-4) Fast Read Opcode
(1-1-4) Fast Read Number of Wait
states
(1-1-4) Fast Read Number of
Mode Bits
39h
0 0000b: Not supported; 0 0100b: 4
0 0110b: 6; 0 1000b: 8
Mode Bits:
000b: Not supported; 010b: 2 bits
(1-1-4) Fast Read Opcode
P/N: PM1755
38h
3Ah
3Bh
37
04:00
0 0100b
07:05
010b
15:08
EBh
20:16
0 0000b
23:21
000b
31:24
FFh
B0h
FFh
44h
EBh
00h
FFh
REV. 1.9, JAN. 12, 2016
MX25U4033E
SFDP Table below is for MX25U4033EBAI-12G, MX25U4033EM1I-12G, MX25U4033EZNI-12G,
MX25U4033EZUI-12G and MX25U4033EZBI-12G
Add (h) DW Add Data (h/b)
Description
Comment
(Byte)
(Bit)
(Note1)
(1-1-2) Fast Read Number of Wait 0 0000b: Not supported; 0 0100b: 4
04:00
0 0000b
states
0 0110b: 6; 0 1000b: 8
3Ch
(1-1-2) Fast Read Number of
Mode Bits:
07:05
000b
Mode Bits
000b: Not supported; 010b: 2 bits
(1-1-2) Fast Read Opcode
(1-2-2) Fast Read Number of Wait
states
(1-2-2) Fast Read Number of
Mode Bits
3Dh
0 0000b: Not supported; 0 0100b: 4
0 0110b: 6; 0 1000b: 8
Mode Bits:
000b: Not supported; 010b: 2 bits
(1-2-2) Fast Read Opcode
(2-2-2) Fast Read
3Fh
0=not support 1=support
Unused
(4-4-4) Fast Read
3Eh
0=not support 1=support
40h
Unused
15:08
FFh
20:16
0 0100b
23:21
000b
31:24
BBh
00
0b
03:01
111b
04
0b
07:05
111b
Data
(h)
00h
FFh
04h
BBh
EEh
Unused
43h:41h
31:08
FFh
FFh
Unused
45h:44h
15:00
FFh
FFh
20:16
0 0000b
23:21
000b
47h
31:24
FFh
FFh
49h:48h
15:00
FFh
FFh
20:16
0 0000b
23:21
000b
4Bh
31:24
FFh
FFh
4Ch
07:00
0Ch
0Ch
4Dh
15:08
20h
20h
4Eh
23:16
0Fh
0Fh
4Fh
31:24
52h
52h
50h
07:00
10h
10h
51h
15:08
D8h
D8h
52h
23:16
00h
00h
53h
31:24
FFh
FFh
(2-2-2) Fast Read Number of Wait
states
(2-2-2) Fast Read Number of
Mode Bits
0 0000b: Not supported; 0 0100b: 4
0 0110b: 6; 0 1000b: 8
Mode Bits:
000b: Not supported; 010b: 2 bits
(2-2-2) Fast Read Opcode
Unused
(4-4-4) Fast Read Number of Wait
states
(4-4-4) Fast Read Number of
Mode Bits
0 0000b: Not supported; 0 0100b: 4
0 0110b: 6; 0 1000b: 8
Mode Bits:
000b: Not supported; 010b: 2 bits
(4-4-4) Fast Read Opcode
Sector Type 1 Size
Sector/block size = 2^N bytes (Note5)
0Ch: 4KB; 0Fh: 32KB; 10h: 64KB
Sector Type 1 erase Opcode
Sector Type 2 Size
Sector/block size = 2^N bytes
00h: N/A; 0Fh: 32KB; 10h: 64KB
Sector Type 2 erase Opcode
Sector Type 3 Size
Sector/block size = 2^N bytes
00h: N/A; 0Fh: 32KB; 10h: 64KB
Sector Type 3 erase Opcode
Sector Type 4 Size
00h: N/A, This sector type doesn't
exist
Sector Type 4 erase Opcode
P/N: PM1755
38
46h
4Ah
00h
00h
REV. 1.9, JAN. 12, 2016
MX25U4033E
Table 12. Parameter Table (1): Macronix Flash Parameter Tables
SFDP Table below is for MX25U4033EBAI-12G, MX25U4033EM1I-12G, MX25U4033EZNI-12G,
MX25U4033EZUI-12G and MX25U4033EZBI-12G
Description
Vcc Supply Maximum Voltage
Vcc Supply Minimum Voltage
Comment
2000h=2.000V
2700h=2.700V
3600h=3.600V
1650h=1.650V, 1750h=1.750V
2250h=2.250V, 2300h=2.300V
2350h=2.350V, 2650h=2.650V
2700h=2.700V
Add (h) DW Add Data (h/b)
(Byte)
(Bit)
(Note1)
Data
(h)
61h:60h
07:00
15:08
00h
20h
00h
20h
63h:62h
23:16
31:24
50h
16h
50h
16h
H/W Reset# pin
0=not support 1=support
00
0b
H/W Hold# pin
0=not support 1=support
01
1b
Deep Power Down Mode
0=not support 1=support
02
1b
S/W Reset
0=not support 1=support
03
0b
S/W Reset Opcode
Reset Enable (66h) should be
issued before Reset Opcode
Program Suspend/Resume
0=not support 1=support
12
0b
Erase Suspend/Resume
0=not support 1=support
13
0b
14
1b
15
0b
66h
23:16
FFh
FFh
67h
31:24
FFh
FFh
65h:64h
Unused
Wrap-Around Read mode
0=not support 1=support
Wrap-Around Read mode Opcode
11:04
1111 1111b
4FF6h
(FFh)
Wrap-Around Read data length
08h:support 8B wrap-around read
16h:8B&16B
32h:8B&16B&32B
64h:8B&16B&32B&64B
Individual block lock
0=not support 1=support
00
1b
Individual block lock bit
(Volatile/Nonvolatile)
0=Volatile 1=Nonvolatile
01
0b
09:02
0011 0110b
(36h)
10
0b
11
1b
Individual block lock Opcode
Individual block lock Volatile
protect bit default protect status
0=protect 1=unprotect
Secured OTP
0=not support 1=support
Read Lock
0=not support 1=support
12
0b
Permanent Lock
0=not support 1=support
13
0b
Unused
15:14
11b
Unused
31:16
FFh
FFh
31:00
FFh
FFh
Unused
6Bh:68h
6Fh:6Ch
C8D9h
MX25U4033EBAI-12G-SFDP_2015-08-26,SF10
P/N: PM1755
39
REV. 1.9, JAN. 12, 2016
MX25U4033E
Note 1: h/b is hexadecimal or binary.
Note 2: (x-y-z) means I/O mode nomenclature used to indicate the number of active pins used for the opcode (x),
address (y), and data (z). At the present time, the only valid Read SFDP instruction modes are: (1-1-1), (2-2-2),
and (4-4-4)
Note 3: Wait States is required dummy clock cycles after the address bits or optional mode bits.
Note 4: Mode Bits is optional control bits that follow the address bits. These bits are driven by the system controller
if they are specified. (eg,read performance enhance toggling bits)
Note 5: 4KB=2^0Ch, 32KB=2^0Fh, 64KB=2^10h
Note 6: All unused and undefined area data is blank FFh for SFDP Tables that are defined in Parameter
Identification Header. All other areas beyond defined SFDP Table are reserved by Macronix.
P/N: PM1755
40
REV. 1.9, JAN. 12, 2016
MX25U4033E
11. POWER-ON STATE
The device is at below states when power-up:
- Standby Mode ( please note it is not Deep Power Down Mode)
- Write Enable Latch (WEL) bit is reset
The device must not be selected during power-up and power-down stage unless the VCC achieves below correct
level:
- VCC minimum at power-up stage and then after a delay of tVSL
- GND at power-down
Please note that a pull-up resistor on CS# may ensure a safe and proper power-up/down level.
An internal power-on reset (POR) circuit may protect the device from data corruption and inadvertent data change
during power up state.
For further protection on the device, if the VCC does not reach the VCC minimum level, the correct operation is not
guaranteed. The read, write, erase, and program command should be sent after the below time delay:
- tVSL after VCC reached VCC minimum level
Please refer to "Figure 36. Power-up Timing" .
Note:
- To stabilize the VCC level, the VCC rail decoupled by a suitable capacitor close to package pins is recommended. (generally around 0.1uF)
P/N: PM1755
41
REV. 1.9, JAN. 12, 2016
MX25U4033E
12. ELECTRICAL SPECIFICATIONS
12-1.
Absolute Maximum Ratings
RATING
VALUE
Ambient Operating Temperature
Industrial grade
-40°C to 85°C
Storage Temperature
-65°C to 150°C
Applied Input Voltage
-0.5V to VCC+0.5V
Applied Output Voltage
-0.5V to VCC+0.5V
VCC to Ground Potential
-0.5V to 2.5V
NOTICE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage
to the device. This is stress rating only and functional operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended period may affect reliability.
2. Specifications contained within the following tables are subject to change.
3. During voltage transitions, all pins may overshoot to VCC+1.0V or -1.0V for period up to 20ns.
Figure 8. Maximum Positive Overshoot Waveform
Figure 7. Maximum Negative Overshoot Waveform
20ns
0V
VCC+1.0V
-1.0V
2.0V
20ns
12-2.
Capacitance
TA = 25°C, f = 1.0 MHz
SYMBOL PARAMETER
CIN
COUT
P/N: PM1755
MIN.
TYP
MAX.
UNIT
Input Capacitance
6
pF
VIN = 0V
Output Capacitance
8
pF
VOUT = 0V
42
CONDITIONS
REV. 1.9, JAN. 12, 2016
MX25U4033E
Figure 9. Input Test Waveforms and Measurement Level
Input timing referance level
0.8VCC
Output timing referance level
0.7VCC
AC
Measurement
Level
0.3VCC
0.2VCC
0.5VCC
Note: Input pulse rise and fall time are
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