Rev 1.4
FS35ND01G-S1Y2QWFI000
SPINAND
FS35ND01G-S1Y2
Datasheet
M-00137
Rev 1.4
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Page 1
Rev 1.4
FS35ND01G-S1Y2QWFI000
Revision History:
Rev.
1.0
1.1
1.2
1.3
Date
2019/10/10
2019/11/26
2019/12/11
2019/12/24
1.4
2020/7/31
Changes
Basic spec and architecture
Revised some descriptions
Removed Continuous read mode
Revised some descriptions of ECC
Status
Revised
the
descriptions
of
performance timing and removed the
function of SR1-L
Remark
Initial release
Edited by
Cisu.Shi
Cisu.Shi
Cisu.Shi
Cisu.Shi
Cisu.Shi
NOTE: INFORMATION IN THIS PRODUCT SPECIFICATION IS SUBJECT TO CHANGE AT ANYTIME WITHOUT NOTICE, ALL PRODUCT
SPECIFICATIONS ARE PROVIDED FOR REFERENCE ONLY.TO ANY INTELLECTUAL, PROPERTY RIGHTS IN LONGSYS ELECTRONICS
CO.,LTD. ALL INFORMATION IN THIS DOCUMENT IS PROVIDED.
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Rev 1.4
FS35ND01G-S1Y2QWFI000
Contents
1.
INTRODUCTION .......................................................................................................................................... 4
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
1.7.
2.
Device Operations ...................................................................................................................................... 9
2.1.
2.2.
2.3.
2.4.
2.5.
2.6.
2.7.
3.
General Description ............................................................................................................................................................................. 4
Device Features ..................................................................................................................................................................................... 4
Product List ............................................................................................................................................................................................. 5
Connection Diagram ............................................................................................................................................................................ 6
Pin Description ...................................................................................................................................................................................... 6
System Block Diagram ........................................................................................................................................................................ 7
Memory Mapping ................................................................................................................................................................................. 7
SPI Mode ................................................................................................................................................................................................... 9
CS# ........................................................................................................................................................................................................... 10
CLK ........................................................................................................................................................................................................... 10
Serial Input (DI) / DQ0 ................................................................................................................................................................... 10
Serial Output (DO) / DQ1 ............................................................................................................................................................... 10
Write Protect (WP#) / DQ2 .......................................................................................................................................................... 10
Hold (HOLD#) / DQ3 ....................................................................................................................................................................... 10
Command Definition................................................................................................................................ 11
3.1.
3.2.
3.3.
3.4.
3.5.
3.6.
3.7.
3.8.
Command Set Tables ........................................................................................................................................................................ 11
Initialization Operation .................................................................................................................................................................. 13
WRITE operation ............................................................................................................................................................................... 15
PROGRAM Operation ....................................................................................................................................................................... 16
READ Operation ................................................................................................................................................................................. 18
Erase Operation.................................................................................................................................................................................. 26
Feature Operation ............................................................................................................................................................................. 27
PROTECTION, CONFIGURATION AND STATUS REGISTERS ........................................................................................... 30
4.
Error Management................................................................................................................................... 35
5.
ECC Protection .......................................................................................................................................... 36
6.
Electrical Characteristics......................................................................................................................... 37
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
7.
Absolute Maximum Ratings .......................................................................................................................................................... 37
Pin Capacitance .................................................................................................................................................................................. 37
Power-up and Power-Down Timing ......................................................................................................................................... 37
DC Electrical Characteristics ........................................................................................................................................................ 38
AC Measurement Conditions ........................................................................................................................................................ 38
AC Electrical Characteristics ......................................................................................................................................................... 39
Packaging Information ............................................................................................................................ 42
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FS35ND01G-S1Y2QWFI000
1. INTRODUCTION
1.1. General Description
The FS35ND01G-S1Y2 is a 1G-bit (128M-byte) SPI (Serial Peripheral Interface) NAND Flash memory, with advanced write protection
mechanisms. The FS35ND01G-S1Y2 supports the standard Serial Peripheral Interface (SPI), Dual/Quad I/O option.
1.2. Device Features
Voltage Supply
- VCC: 3.3V (2.7V ~ 3.6V)
Program/Erase/Read Speed
- PAGE PROGRAM time : 430μs typical
- BLOCK ERASE time : 3.5ms typical
- PAGE READ time : 180μs typical
Organization
- Memory Cell Array : (128M + 4M) Byte
- Page Size : (2K + 64) Byte
- Data Register : (2K + 64) Byte
- Block Erase : (128K + 4K) Byte
- Device size : 1Gb(1024 blocks)
Advanced Features for NAND
– Internal ECC option, per 512 bytes
– Promised golden block0
Serial Interface
- Standard SPI : CLK, CS#, DI, DO, WP#
- Dual SPI : CLK, CS#, DQ0, DQ1, WP#
- Quad SPI : CLK, CS#, DQ0, DQ1, DQ2, DQ3
Package
- WSON8 (8x6mm)
Reliability
- Up To 100,000 Program/Erase Cycles
- 10 Year Data retention (with 4bit/512Byte ECC)
High Performance
- 108MHz for fast read
- Quad I/O data transfer up to 432Mbits/s
- 2K-Byte cache for fast random read
Notes:
1. LUT stands for Look-Up Table.
2. OTP pages can only be programmed.
Advanced Security Features
- Write protect all/portion of memory via software
- ECC status bits indicate ECC results
- bad block management and LUT(1) access
- Power Supply Lock-Down and OTP protection
- 2KB Unique ID and 2KB parameter pages
- Ten 2KB OTP pages (2)
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1.3. Product List
[Table 1] Product List
Part Number
MID
DID
Density
FS35ND01G-S1Y2QWFI000
CDh
EA11h
1Gb
Marketing Part Number Chart
FS 35 ND 01G – S1 Y2 Q W
F I
Package
Type
WSON8
Organization
X1/X2/X4
Package
Size(mm)
8*6
VCC Range
2.7V ~ 3.6V
0 0 0
Reserved Code
Reserved Code
Tracking Code：
0,1,2……
Temperature Range：
I = Industrial（-40℃~85℃）
C = Commercial（0℃~70℃）
Package Materials（Green Code F）
Package Type：
L = LGA8
W = WSON8
Interface：
S = Single Mode
D = Single/Dual Mode
Q = Single/Dual/Quad Mode
Product Version
Flash Type
Density ：
01G = 1Gbits
02G = 2Gbits
04G = 4Gbits
ND = SLC NAND
Voltage Range：
35 =SPI NAND Series，2.7V~3.6V
Brand :
FS=FORESEE
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FS35ND01G-S1Y2QWFI000
1.4. Connection Diagram
WSON8 (8x6mm)
Figure 1-1 Pad Assignments
1.5. Pin Description
[Table 2] Pin Description
PIN NO.
1
2
3
4
5
6
7
8
PIN NAME
CS#
DO (DQ1)
WP# (DQ2)
VSS
DI (DQ0)
CLK
HOLD# (DQ3)
VCC
I/O
I
I/O
I/O
-I/O
I
I/O
--
Pin Function
Chip Select Input
Data Output (Data Input Output 1)(1)
Write Protect Input (Data Input Output 2)(2)
Ground
Data Input (Data Input Output 0)(1)
Serial Clock Input
Hold Input (Data Input Output 3)(2)
Power Supply
NOTE:
1) DQ0 and DQ1 are used for Dual SPI instructions.
2) DQ0 - DQ3 are used for Quad SPI instructions.
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1.6. System Block Diagram
Figure 1-2 SPI NAND Flash Memory Block Diagram
1.7. Memory Mapping
Figure 1-3 Memory Map
Note:
1) CA: Column Address. The 12-bit column address is capable of addressing from 0 to 4095 bytes; however, only bytes 0 through 2111 are valid.
Bytes 2112 through 4095 of each page are “out of bounds, ” do not exists in the device, and cannot be addressed.
2) RA: Row Address. RA selects a page inside a block, and RA selects a block.
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[Table 3] Array Organization
Each device has
Each block has
Each page has
Unit
128M + 4M
128K + 4K
2K + 64
Bytes
2048 x 64
1024
64
--
---
Pages
Blocks
Figure 1-4 Array Organization
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FS35ND01G-S1Y2QWFI000
2. Device Operations
2.1. SPI Mode
2.1.1. Standard SPI
The FS35ND01G-S1Y2 is accessed through an SPI compatible bus consisting of four signals: Serial Clock (CLK), Chip Select
(CS#), Serial Data Input (DI) and Serial Data Output (DO). Standard SPI instructions use the DI input pin to serially write
instructions, addresses or data to the device on the rising edge of CLK. The DO output pin is used to read data or status from
the device on the falling edge of CLK.
SPI bus operation Mode 0 (0,0) and 3 (1,1) are supported. The primary difference between Mode 0 and Mode 3 concerns the
normal state of the CLK signal when the SPI bus master is in standby and data is not being transferred to the Serial Flash. For
Mode 0, the CLK signal is normally low on the falling and rising edges of CS#. For Mode 3, the CLK signal is normally high on the
falling and rising edges of CS#.
Figure 2-2 SPI SDR Modes Supported
2.1.2. Dual SPI
The FS35ND01G-S1Y2 supports Dual SPI operation when using the x2 and dual IO instructions. These instructions allow data
to be transferred to or from the device at two times the rate of ordinary Serial Flash devices. When using Dual SPI instructions,
the DI and DO pins become bidirectional I/O pins: DQ0 and DQ1.
2.1.3. Quad SPI
The FS35ND01G-S1Y2 supports Quad SPI operation when using the x4 and Quad IO instructions. These instructions allow data
to be transferred to or from the device four times the rate of ordinary Serial Flash. When using Quad SPI instructions the DI and
DO pins become bidirectional DQ0 and DQ1 and the WP # and HOLD# pins become DQ2 and DQ3 respectively. Quad SPI
instructions require the Quad Enable bit (QE) to be set.
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2.2. CS#
The SPI Chip Select (CS#) pin enables and disables device operation. When CS# is high, the device is deselected and the Serial
Data Output (DO, or DQ0, DQ1, DQ2, DQ3) pins are at high impedance. When deselected, the devices power consumption will
be at standby levels unless an internal erase, program, read, reset or individual block lock / unlock cycle is in progress. When
CS# is brought low, the device will be selected, power consumption will increase to active levels and instructions can be written
to and data read from the device. After power-up, CS# must transition from high to low before a new instruction will be
accepted.
2.3. CLK
This input signal provides the synchronization reference for the SPI interface. Instructions, addresses, or data input are latched
on the rising edge of the CLK signal. Data output changes after the falling edge of CLK.
2.4. Serial Input (DI) / DQ0
This input signal is used to transfer data serially into the device. It receives instructions, addresses, and data to be programmed.
Values are latched on the rising edge of serial CLK clock signal.
DI becomes DQ0 - an input and output during Dual and Quad commands for receiving instructions, addresses, and data to be
programmed (values latched on rising edge of serial CLK clock signal) as well as shifting out data (on the falling edge of CLK).
2.5. Serial Output (DO) / DQ1
This output signal is used to transfer data serially out of the device. Data is shifted out on the falling edge of the serial CLK clock
signal.
DO becomes DQ1 - an input and output during Dual and Quad commands for receiving addresses, and data to be programmed
(values latched on rising edge of serial CLK clock signal) as well as shifting out data (on the falling edge of CLK).
2.6. Write Protect (WP#) / DQ2
The Write Protect (WP#) pin can be used to prevent the Status Register from being written. Used in conjunction with the Status
Register’s Block Protect bits BP[3:0] and Status Register Protect SRP bits SRP[1:0], a portion as small as 256K-Byte (2x128KB
blocks) or up to the entire memory array can be hardware protected. The WP-E bit in the Protection Register (SR-1) controls
the functions of the WP# pin.
When WP-E=0, the device is in the Software Protection mode that only SR-1 can be protected. The WP# pin functions as a data
I/O pin for the Quad SPI operations, as well as an active low input pin for the Write Protection function for SR-1.
When WP-E=1, the device is in the Hardware Protection mode that WP# becomes a dedicated active low input pin for the Write
Protection of the entire device. If WP# is tied to GND, all “Write/Program/Erase” functions are disabled. The entire device
(including all registers, memory array, OTP pages) will become read-only. Quad SPI read operations are also disabled when
WP-E is set to 1.
2.7. Hold (HOLD#) / DQ3
During Standard and Dual SPI operations, the HOLD# pin allows the device to be paused while it is actively selected. When
HOLD# is brought low, while CS# is low, the DO pin will be at high impedance and signals on the DI and CLK pins will be
ignored (don’t care). When HOLD# is brought high, device operation can resume. The HOLD# function can be useful when
multiple devices are sharing the same SPI signals. The HOLD# pin is active low.
When a Quad SPI Read/Buffer Load command is issued, HOLD# pin will become a data I/O pin for the Quad operations and no
HOLD function is available until the current Quad operation finished. HOLD# (IO3) must be driven high by the host, or an
external pull-up resistor must be placed on the PCB, in order to avoid allowing the HOLD# input to float.
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FS35ND01G-S1Y2QWFI000
3.
Command Definition
3.1. Command Set Tables
[Table 4] Instruction Set Table
Commands
OpCode
Byte2
Byte3
Byte4
Byte5
Device RESET
FFh
JEDEC ID
9Fh
Dummy
CDh
EAh
11h
Read Status Register
0Fh / 05h
SR Addr
S7-0
S7-0
S7-0
Write Status Register
1Fh / 01h
SR Addr
S7-0
Write Enable
06h
Byte6
Byte7
Byte8
Byte9
S7-0
S7-0
S7-0
S7-0
Write Disable
04h
BB Management
(Swap Blocks)
A1h
LBA
LBA
PBA
PBA
Read BBM LUT
A5h
Dummy
LBA0
LBA0
PBA0
PBA0
LBA1
LBA1
PBA1
Block Erase
D8h
PA23-16
PA15-8
PA7-0
Program Data Load
(Reset Buffer)
02h
CA15-8
CA7-0
Data-0
Data-1
Data-2
Data-3
Data-4
Data-5
Random Program
Data Load
84h
CA15-8
CA7-0
Data-0
Data-1
Data-2
Data-3
Data-4
Data-5
Quad Program
Data Load (Reset Buffer)
32h
CA15-8
CA7-0
Data-0 / 4
Data-1 / 4
Data-2 / 4
Data-3 / 4
Data-4 / 4
Data-5 / 4
Random Quad Program
Data Load
34h
CA15-8
CA7-0
Data-0 / 4
Data-1 / 4
Data-2 / 4
Data-3 / 4
Data-4 / 4
Data-5 / 4
Program Execute
10h
PA23-16
PA15-8
PA7-0
Page Data Read
13h
PA23-16
PA15-8
PA7-0
Read
03h
CA15-8
CA7-0
Dummy
D7-0
D7-0
D7-0
D7-0
D7-0
Fast Read
0Bh
CA15-8
CA7-0
Dummy
D7-0
D7-0
D7-0
D7-0
D7-0
Fast Read
with 4-Byte Address
0Ch
CA15-8
CA7-0
Dummy
Dummy
Dummy
D7-0
D7-0
D7-0
Fast Read Dual Output
3Bh
CA15-8
CA7-0
Dummy
D7-0 / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
Fast Read Dual Output
with 4-Byte Address
3Ch
CA15-8
CA7-0
Dummy
Dummy
Dummy
D7-0 / 2
D7-0 / 2
D7-0 / 2
Fast Read Quad Output
6Bh
CA15-8
CA7-0
Dummy
D7-0 / 4
D7-0 / 4
D7-0 / 4
D7-0 / 4
D7-0 / 4
Fast Read Quad Output
with 4-Byte Address
6Ch
CA15-8
CA7-0
Dummy
Dummy
Dummy
D7-0 / 4
D7-0 / 4
D7-0 / 4
Fast Read Dual I/O
BBh
CA15-8 / 2
CA7-0 / 2
Dummy / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
Fast Read Dual I/O
with 4-Byte Address
BCh
CA15-8 / 2
CA7-0 / 2
Dummy / 2
Dummy / 2
Dummy / 2
D7-0 / 2
D7-0 / 2
D7-0 / 2
Fast Read Quad I/O
EBh
CA15-8 / 4
CA7-0 / 4
Dummy / 4
Dummy / 4
D7-0 / 4
D7-0 / 4
D7-0 / 4
D7-0 / 4
Fast Read Quad I/O
with 4-Byte Address
ECh
CA15-8 / 4
CA7-0 / 4
Dummy / 4
Dummy / 4
Dummy / 4
Dummy / 4
Dummy / 4
D7-0 / 4
Notes:
1. Output designates data output from the device.
2. Column Address (CA) only requires CA[11:0], CA[15:12] are considered as dummy bits.
3. Page Address (PA) requires 24 bits. PA[23:6] is the address for 128KB blocks (total 1,024 blocks), PA[5:0] is the address for 2KB pages (total
64 pages for each block).
4. Logical and Physical Block Address (LBA & PBA) each consists of 16 bits. LBA[9:0] & PBA[9:0] are effective Block Addresses. LBA[15:14] is
used for additional information.
5. Status Register Addresses:
Status Register 1 / Protection Register:
Addr = A0h
Status Register 2 / Configuration Register:
Addr = B0h
Status Register 3 / Status Register:
Addr = C0h
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6. Dual SPI Address Input (CA15-8 / 2 and CA7-0 / 2) format:
IO0 = x, x, CA10, CA8, CA6, CA4,
IO1 = x, x, CA11, CA9, CA7, CA5,
7. Dual SPI Data Output (D7-0 / 2) format:
IO0 = D6, D4, D2, D0, ……
IO1 = D7, D5, D3, D1, ……
CA2,
CA3,
CA0
CA1
8. Quad SPI Address Input (CA15-8 / 4 and CA7-0 / 4) format:
IO0 = x, CA8,
CA4,
CA0
IO1 = x, CA9,
CA5,
CA1
IO2 = x, CA10,
CA6,
CA2
IO3 = x, CA11,
CA7,
CA3
9. Quad SPI Data Input/Output (D7-0 / 4) format:
IO0 = D4, D0, ……
IO1 = D5, D1, ……
IO2 = D6, D2, ……
IO3 = D7, D3, ……
10. All Quad Program/Read commands are disabled when WP-E bit is set to 1 in the Protection Register.
11. For all Read operations, as soon as /CS signal is brought to high to terminate the read operation, the device will be ready to accept new
instructions and all the data inside the Data Buffer will remain unchanged from the previous Page Data Read instruction.
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3.2. Initialization Operation
3.2.1. Device Reset (FFh)
The FS35ND01G-S1Y2 provide a software Reset instruction instead of a dedicated RESET pin. Once the Reset instruction is
accepted, any on-going internal operations will be terminated and the device will return to its default power-on state and lose
all the current volatile settings, such as Volatile Status Register bits. Once the Reset command is accepted by the device, the
device will take approximately tRST to reset, depending on the current operation the device is performing, tRST can be
5us~500us. During this period, no command will be accepted.
Data corruption may happen if there is an on-going internal Erase or Program operation when Reset command sequence is
accepted by the device. It is recommended to check the BUSY bit in Status Register before issuing the Reset command.
Figure 3-1 Device Reset Instruction
Default values of the Status Registers after power up and Device Reset
Register
Address
Bits
Shipment
Power Up
Default
after LUT
is full
Protection
Register
A0h
HConfiguration
Register
B0h
Status Register
C0h
BP[3:0],TB
11111
11111
Power Up
after OTP
area
locked
11111
Power Up after SR-1
locked
After Reset
command(FFh)
FS35ND01G-S1Y2x(locked)
No Change
SRP[1:0]
00
00
00
1 1(locked)
No Change
WP-E
0
0
0
x(locked)
No Change
OTP-L
0
0
1
0
OTP-E
0
0
0
0
Clear to 0 before
OTP set
0
ECC-E
1
1
1
1
No Change
LUT-F
0
1
0
0
No Change
ECC-1
0
0
0
0
0
ECC-0
0
0
0
0
0
P-FAIL
0
0
0
0
0
E-FAIL
0
0
0
0
0
WEL
0
0
0
0
0
BUSY
1 during
tRST≥0
1 during
tRST≥0
1 during
tRST≥0
1 during tRST≥0
1 during tRST≥0
3.2.2. Read JEDEC ID (9Fh)
The Read JEDEC ID instruction is compatible with the JEDEC standard for SPI compatible serial memories that was adopted in
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2003. The instruction is initiated by driving the CS# pin low and shifting the instruction code “9Fh” followed by 8 dummy
clocks. The JEDEC assigned Manufacturer ID byte for FORESEE(CDh) and two Device ID bytes are then shifted out on the falling
edge of CLK with most significant bit (MSB) first. For memory type and capacity values refer to Manufacturer and Device
Identification table.
Figure 3-2 Read JEDEC ID Instruction
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3.3. WRITE operation
3.3.1. WRITE ENABLE (WREN) (06h)
The Write Enable instruction sets the Write Enable Latch (WEL) bit in the Status Register to a 1. The WEL bit must be set prior
to every Page Program, Quad Page Program. Block Erase and Bad Block Management instruction. The Write Enable instruction
is entered by driving CS# low, shifting the instruction code “06h” into the Data Input (DI) pin on the rising edge of CLK, and
then driving CS# high.
Figure 3-3 WRITE ENABLE (06h) Timing
3.3.2. WRITE DISABLE (WRDI) (04h)
The Write Disable instruction resets the Write Enable Latch (WEL) bit in the Status Register to a 0. The Write Disable
instruction is entered by driving CS# low, shifting the instruction code “04h” into the DI pin and then driving CS# high. Note
that the WEL bit is automatically reset after Power-up and upon completion of the Page Program, Quad Page Program, Block
Erase, Reset and Bad Block Management instructions.
Figure 3-4 WRITE DISABLE (04h) Timing
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3.4. PROGRAM Operation
3.4.1. Load Program Data (02h) / Random Load Program Data (84h)
The Program operation allows from one byte to 2,112 bytes (a page) of data to be programmed at previously erased (FFh)
memory locations. A Program operation involves two steps:
1. Load the program data into the Data Buffer.
2. Issue “Program Execute” command to transfer the data from Data Buffer to the specified memory page.
A Write Enable instruction must be executed before the device will accept the Load Program Data Instructions (Status Register
bit WEL= 1). The “Load Program Data” or “Random Load Program Data” instruction is initiated by driving the CS# pin low then
shifting the instruction code “02h” or “84h” followed by a 16-bit column address (only CA[11:0] is effective) and at least one
byte of data into the DI pin. The CS# pin must be held low for the entire length of the instruction while data is being sent to the
device. If the number of data bytes sent to the device exceeds the number of data bytes in the Data Buffer, the extra data will be
ignored by the device.
Both “Load Program Data” and “Random Load Program Data” instructions share the same command sequence. The difference
is that “Load Program Data” instruction will reset the unused the data bytes in the Data Buffer to FFh value, while “Random
Load Program Data” instruction will only update the data bytes that are specified by the command input sequence, the rest of
the Data Buffer will remain unchanged.
No matter internal ECC is enabled or disabled, all 2,112 bytes of data will be accepted. If the ECC-E bit is set to a 1, values of
ECC-0 and ECC-1 bit of C0 Register will indicate the ECC status.
Figure 3-5 Load / Random Load Program Data Instruction
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3.4.2. Quad Load Program Data (32h) / Quad Random Load Program Data (34h)
The “Quad Load Program Data” and “Quad Random Load Program Data” instructions are identical to the “Load Program Data”
and “Random Load Program Data” in terms of operation sequence and functionality. The only difference is that “Quad Load”
instructions will input the data bytes from all four IO pins instead of the single DI pin. This method will significantly shorten the
data input time when a large amount of data needs to be loaded into the Data Buffer.
Both “Quad Load Program Data” and “Quad Random Load Program Data” instructions share the same command sequence. The
difference is that “Quad Load Program Data” instruction will reset the unused the data bytes in the Data Buffer to FFh value,
while “Quad Random Load Program Data” instruction will only update the data bytes that are specified by the command input
sequence, the rest of the Data Buffer will remain unchanged.
When WP-E bit in the Status Register is set to a 1, all Quad SPI instructions are disabled.
Figure 3-6 Quad Load / Quad Random Load Program Data Instruction
3.4.3. Program Execute (10h)
The Program Execute instruction is the second step of the Program operation. After the program data are loaded into the
2,112-Byte Data Buffer , the Program Execute instruction will program the Data Buffer content into the physical memory page
that is specified in the instruction. The instruction is initiated by driving the CS# pin low then shifting the instruction code “10h”
followed by the 24-bit Page Address into the DI pin.
After CS# is driven high to complete the instruction cycle, the self-timed Program Execute instruction will commence for a time
duration of tpp (See AC Characteristics). While the Program Execute cycle is in progress, the Read Status Register instruction
may still be used for checking the status of the BUSY bit. The BUSY bit is a 1 during the Program Execute cycle and becomes a 0
when the cycle is finished and the device is ready to accept other instructions again. After the Program Execute cycle has
finished, the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Program Execute instruction will not be
executed if the addressed page is protected by the Block Protect (TB, BP2, BP1, and BP0) bits. Only 1 partial page program
times are allowed on every single page.
The pages within the block have to be programmed sequentially from the lower order page address to the higher order page
address within the block. Programming pages out of sequence is prohibited.
Figure 3-7 Program Execute Instruction
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3.5. READ Operation
3.5.1. Page Data Read (13h)
The Page Data Read instruction will transfer the data of the specified memory page into the 2,112-Byte Data Buffer. The
instruction is initiated by driving the CS# pin low then shifting the instruction code “13h” followed by the 24-bit Page Address
into the DI pin.
After CS# is driven high to complete the instruction cycle, the self-timed Read Page Data instruction will commence for a time
duration of tRD (See AC Characteristics). While the Read Page Data cycle is in progress, the Read Status Register instruction
may still be used for checking the status of the BUSY bit. The BUSY bit is a 1 during the Read Page Data cycle and becomes a 0
when the cycle is finished and the device is ready to accept other instructions again.
After the 2,112 bytes of page data are loaded into the Data Buffer, several Read instructions can be issued to access the Data
Buffer and read out the data.
Figure 3-8 Page Data Read Instruction
3.5.2. Read Data (03h)
The Read Data instruction allows one or more data bytes to be sequentially read from the Data Buffer after executing the Read
Page Data instruction. The Read Data instruction is initiated by driving the CS# pin low and then shifting the instruction code
“03h” followed by the 16-bit Column Address and 8-bit dummy clocks or a 24-bit dummy clocks into the DI pin. After the
address is received, the data byte of the addressed Data Buffer location will be shifted out on the DO pin at the falling edge of
CLK with most significant bit (MSB) first. The address is automatically incremented to the next higher address after each byte
of data is shifted out allowing for a continuous stream of data. The instruction is completed by driving CS# high.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-9 Read Data Instruction
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3.5.3. Fast Read (0Bh)
The Fast Read instruction allows one or more data bytes to be sequentially read from the Data Buffer after executing the Read
Page Data instruction. The Fast Read instruction is initiated by driving the CS# pin low and then shifting the instruction code
“0Bh” followed by the 16-bit Column Address and 8-bit dummy clocks or a 32-bit dummy clocks into the DI pin. After the
address is received, the data byte of the addressed Data Buffer location will be shifted out on the DO pin at the falling edge of
CLK with most significant bit (MSB) first. The address is automatically incremented to the next higher address after each byte
of data is shifted out allowing for a continuous stream of data. The instruction is completed by driving CS# high.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-10 Fast Read Instruction
3.5.4. Fast Read with 4-Byte Address (0Ch)
The Fast Read instruction allows one or more data bytes to be sequentially read from the Data Buffer after executing the Read
Page Data instruction. The Fast Read instruction is initiated by driving the CS# pin low and then shifting the instruction code
“0Ch” followed by the 16-bit Column Address and 24-bit dummy clocks into the DI pin. After the address is received, the data
byte of the addressed Data Buffer location will be shifted out on the DO pin at the falling edge of CLK with most significant bit
(MSB) first. The address is automatically incremented to the next higher address after each byte of data is shifted out allowing
for a continuous stream of data. The instruction is completed by driving CS# high.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-11 Fast Read with 4-Byte Address Instruction
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3.5.5. Fast Read Dual Output (3Bh)
The Fast Read Dual Output (3Bh) instruction is similar to the standard Fast Read (0Bh) instruction except that data is output
on two pins; IO0 and IO1. This allows data to be transferred at twice the rate of standard SPI devices.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-12 Fast Read Dual Output Instruction
3.5.6. Fast Read Dual Output with 4-Byte Address (3Ch)
The Fast Read Dual Output (3Ch) instruction is similar to the standard Fast Read (0Bh) instruction except that data is output on
two pins; IO0 and IO1. This allows data to be transferred at twice the rate of standard SPI devices.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-13 Fast Read Dual Output with 4-Byte Address Instruction
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3.5.7. Fast Read Quad Output (6Bh)
The Fast Read Quad Output (6Bh) instruction is similar to the Fast Read Dual Output (3Bh) instruction except that data is
output on four pins, IO0, IO1, IO2, and IO3. The Fast Read Quad Output Instruction allows data to be transferred at four times
the rate of standard SPI devices.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
When WP-E bit in the Status Register is set to a 1, this instruction is disabled.
Figure 3-14 Fast Read Quad Output Instruction
3.5.8. Fast Read Quad Output with 4-Byte Address (6Ch)
The Fast Read Quad Output (6Ch) instruction is similar to the Fast Read Dual Output (3Bh) instruction except that data is
output on four pins, IO0, IO1, IO2, and IO3. The Fast Read Quad Output Instruction allows data to be transferred at four times
the rate of standard SPI devices.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
When WP-E bit in the Status Register is set to a 1, this instruction is disabled.
Figure 3-15 Fast Read Quad Output with 4-Byte Address Instruction
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3.5.9. Fast Read Dual I/O (BBh)
The Fast Read Dual I/O (BBh) instruction allows for improved random access while maintaining two IO pins, IO0 and IO1. It is
similar to the Fast Read Dual Output (3Bh) instruction but with the capability to input the Column Address or the dummy
clocks two bits per clock. This reduced instruction overhead may allow for code execution (XIP) directly from the Dual SPI in
some applications.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-16 Fast Read Dual I/O Instruction
3.5.10. Fast Read Dual I/O with 4-Byte Address (BCh)
The Fast Read Dual I/O (BCh) instruction allows for improved random access while maintaining two IO pins, IO0 and IO1. It is
similar to the Fast Read Dual Output (3Bh) instruction but with the capability to input the Column Address or the dummy
clocks two bits per clock. This reduced instruction overhead may allow for code execution (XIP) directly from the Dual SPI in
some applications.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
Figure 3-17 Fast Read Dual I/O with 4-Byte Address Instruction
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3.5.11. Fast Read Quad I/O (EBh)
The Fast Read Quad I/O (EBh) instruction is similar to the Fast Read Dual I/O (BBh) instruction except that address and data
bits are input and output through four pins IO0, IO1, IO2 and IO3 prior to the data output. The Quad I/O dramatically reduces
instruction overhead allowing faster random access for code execution (XIP) directly from the Quad SPI.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
When WP-E bit in the Status Register is set to a 1, this instruction is disabled.
Figure 3-18 Fast Read Quad I/O Instruction
3.5.12. Fast Read Quad I/O with 4-Byte Address (ECh)
The Fast Read Quad I/O (ECh) instruction is similar to the Fast Read Dual I/O (BBh) instruction except that address and data
bits are input and output through four pins IO0, IO1, IO2 and IO3 prior to the data output. The Quad I/O dramatically reduces
instruction overhead allowing faster random access for code execution (XIP) directly from the Quad SPI.
The data output sequence will start from the Data Buffer location specified by the 16-bit Column Address and continue to the
end of the Data Buffer. Once the last byte of data is output, the output pin will become Hi-Z state.
When WP-E bit in the Status Register is set to a 1, this instruction is disabled.
Figure 3-19 Fast Read Quad I/O with 4-Byte Address Instruction
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3.5.13. Accessing Unique ID / Parameter / OTP Pages (OTP-E=1)
In addition to the main memory array, the FS35ND01G-S1Y2 is also equipped with one Unique ID Page, one Parameter Page,
and 10 OTP Pages.
[Table 5]OTP Area Address
Page Address
Page Name
Descriptions
Data Length
00h
01h
Unique ID Page
Parameter Page
Factory programmed, Read Only
Factory programmed, Read Only
32-Byte x 16
256-Byte x 3
02h
OTP Page [0]
Program Only, OTP lockable
2,112-Byte
…
0Bh
OTP Pages [1:8]
OTP Page [9]
Program Only, OTP lockable
Program Only, OTP lockable
2,112-Byte
2,112-Byte
To access these additional data pages, the OTP-E bit in Status Register-2 must be set to “1” first. Then, Read operations can be
performed on Unique ID and Parameter Pages. Read and Program operations can be performed on the OTP pages if it’s not
already locked. To return to the main memory array operation, OTP-E bit needs to be to set to 0.
Read Operations
A “Page Data Read” command must be issued followed by a specific page address shown in the table above to load the page
data into the main Data Buffer. After the device finishes the data loading (BUSY=0), all Read commands may be used to read the
Data Buffer starting from any specified Column Address. Please note all Read commands must now follow the command
structure (CA[15:0], number of dummy clocks). ECC can also be enabled for the OTP page read operations to ensure the data
integrity.
Program and OTP Lock Operations
OTP pages provide the additional space (2K-Byte x10) to store important data or security information that can be locked to
prevent further modification in the field. These OTP pages are in an erased state set in the factory, and can only be programmed
(change data from “1” to “0”) until being locked by OTP-L bit in the Configuration/Status Register-2. OTP-E must be first set to
“1” to enable the access to these OTP pages, then the program data must be loaded into the main Data Buffer using any
“Program Data Load” commands. The “Program Execute” command followed by a specific OTP Page Address is used to initiate
the data transfer from the Data Buffer to the OTP page. When ECC is enabled, ECC calculation will be performed during
“Program Execute”, and the ECC information will be stored into the Flash.
Once the OTP pages are correctly programmed, OTP-L bit can be used to permanently lock these pages so that no further
modification is possible. While still in the “OTP Access Mode” (OTP-E=1), user needs to set OTP-L bit in the
Configuration/Status Register-2 to “1”, and issue a “Program Execute” command(Page address is “00h”). After the device
finishes the OTP lock setting (BUSY=0), the user can set OTP-E to “0” to return to the main memory array operation.
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3.5.14. Parameter Page Data Definitions
The Parameter Page contains 3 identical copies of the 256-Byte Parameter Data. The table below lists all the key data byte
locations. All other unspecified byte locations have 00h data as default.
[Table 6] Parameter Page Data Definitions
Byte Number
Descriptions
Values
0~3
4~5
6~7
8~9
10~31
32~43
44~63
Parameter page signature
Revision number
Feature supported
Optional command supported
Reserved
Device manufacturer
Device model
64
65~66
67~79
80~83
84~85
JEDEC manufacturer ID
Date code
Reserved
Number of data bytes per page
Number of spare bytes per page
4Fh, 4Eh, 46h, 49h
00h, 00h
00h, 00h
02h, 00h
All 00h
46h, 4Fh, 52h, 45h, 53h, 45h, 45h,20h,20h,20h,20h,20h
46h, 53h,33h,35h,4Eh,
44h,30h,31h,47h,2Dh,53h,31h,59h,32h,20h,20h,20h,20
h,20h,20h
CDh
00h, 00h
All 00h
00h, 08h, 00h, 00h
40h, 00h
86~91
Reserved
All 00h
92~95
96~99
100
101
102
103~104
105~106
107
Number of pages per block
Number of blocks per logical unit
Number of logical units
Number of address bytes
Number of bits per cell
Bad blocks maximum per unit
Block endurance
Guaranteed valid blocks at beginning of target
40h, 00h, 00h, 00h
00h, 04h, 00h, 00h
01h
00h
01h
14h, 00h
05h, 04h
01h
108~109
Block endurance for guaranteed valid blocks
00h, 00h
110
Number of programs per page
01h
111
Reserved
00h
112
Number of ECC bits
00h
113
114
115~127
Number of plane address bits
Multi-plane operation attributes
Reserved
00h
00h
All 00h
128
I/O pin capacitance, maximum
08h
129~132
Reserved
All 00h
133~134
135~136
137~138
139~163
164~165
166~253
254~255
256~511
512~767
768+
Maximum page program time (us)
Maximum block erase time (us)
Maximum page read time (us)
Reserved
Vendor specific revision number
Vendor specific
Integrity CRC
Value of bytes 0~255
Value of bytes 0~255
Reserved
20h, 03h(800)
10h, 27h(10000)
C2h, 01h(450)
All 00h
00h, 00h
All 00h
Set at test
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3.6. Erase Operation
3.6.1. 128KB Block Erase (D8h)
The 128KB Block Erase instruction sets all memory within a specified block (64-Pages, 128K-Bytes) to the erased state of all is
(FFh). A Write Enable instruction must be executed before the device will accept the Block Erase Instruction (Status Register
bit WEL must equal 1). The instruction is initiated by driving the CS# pin low and shifting the instruction code “D8h” followed
by the 24-bit page address.
The CS# pin must be driven high after the eighth bit of the last byte has been latched. If this is not done the Block Erase
instruction will not be executed. After CS# is driven high, the self-timed Block Erase instruction will commence for a time
duration of tBE (See AC Characteristics). While the Block Erase cycle is in progress, the Read Status Register instruction may
still be accessed for checking the status of the BUSY bit. The BUSY bit is a 1 during the Block Erase cycle and becomes a 0 when
the cycle is finished and the device is ready to accept other instructions again. After the Block Erase cycle has finished the Write
Enable Latch (WEL) bit in the Status Register is cleared to 0. The Block Erase instruction will not be executed if the addressed
block is protected by the Block Protect (TB, BP2, BP1, and BP0) bits.
Figure 3-20 128KB Block Erase Instruction
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3.7. Feature Operation
3.7.1. Bad Block Management (A1h)
Due to large NAND memory density size and the technology limitation, NAND memory devices are allowed to be shipped to the
end customers with certain amount of “Bad Blocks” found in the factory testing. Up to 2% of the memory blocks can be marked
as “Bad Blocks” upon shipment, which is a maximum of 20 blocks for FS35ND01G-S1Y2. In order to identify these bad blocks,
it is recommended to scan the entire memory array for bad block markers set in the factory. A “Bad Block Marker” is a non-FFh
data byte stored at Byte2048 of Page 0 for each bad block.
FS35ND01G-S1Y2 offers a convenient method to manage the bad blocks typically found in NAND flash memory after extensive
use. The “Bad Block Management” command is initiated by shifting the instruction code “A1h” into the DI pin and followed by
the 16-bit “Logical Block Address” and 16-bit “Physical Block Address”. A Write Enable instruction must be executed before the
device will accept the Bad Block Management Instructions (Status Register bit WEL= 1). The logical block address is the
address for the “bad” block that will be replaced by the “good” block indicated by the physical block address.
Once a Bad Block Management command is successfully executed, the specified LBA-PBA link will be added to the internal
Look Up Table (LUT). Up to 20 links can be established in the non-volatile LUT. If all 20 links have been written, the LUT-F bit in
the Status Register will become a 1, and no more LBA-PBA links can be established. Therefore, prior to issuing the Bad Block
Management command, the LUT-F bit value can be checked or a “Read BBM Look Up Table” command can be issued to confirm
if spare links are still available in the LUT.
Registering the same address in multiple PBAs is prohibited. It may cause unexpected behavior.
Figure 3-21 Bad Block Management Instruction
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3.7.2. Read BBM Look Up Table (A5h)
The internal Look Up Table (LUT) consists of 20 Logical-Physical memory block links (from LBA0/PBA0 to LBA19/PBA19). The
“Read BBM Look Up Table” command can be used to check the existing address links stored inside the LUT.
The “Read BBM Look Up Table” command is initiated by shifting the instruction code “A5h” into the DI pin and followed by 8-bit
dummy clocks, at the falling edge of the 16th clocks, the device will start to output the 16-bit “Logical Block Address” and the
16-bit “Physical Block Address” as illustrated in Figure 3-22. All block address links will be output sequentially starting from
the first link (LBA0 & PBA0) in the LUT. If there are available links that are unused, the output will contain all “00h” data.
[Table 7] BBM Link
The MSB bits LBA[15:14] of each link are used to indicate the status of the link.
LBA[15]
(Enable)
LBA[14]
(Invalid)
Descriptions
0
0
This link is available to use.
1
0
This link is enabled and it is a valid link.
1
1
This link was enabled, but it is not valid any more.
0
1
Not applicable.
Figure 3-22 Read BBM Look Up Table Instruction
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3.7.3. GET FEATURES (0Fh/05h) and SET FEATURES (1Fh/01h)
The GET FEATURES (0Fh) and SET FEATURES (1Fh) commands are used to alter the device behavior from the default
power-on behavior. These commands use a 1-byte feature address to determine which feature is to be read or modified.
Features such as OTP and block lock can be enabled or disabled by setting specific bits in feature address A0h and B0h (shown
the following table). The status register is mostly read, except WEL, which is writable bit with the WREN (06h) command.
When a feature is set, it remains active until the device is power cycled or the feature is written to. Unless otherwise specified
in the following table, once the device is set, it remains set, even if a RESET (FFh) command is issued.
The Write Status Register instruction allows the Status Registers to be written. The writable Status Register bits include:
SRP[1:0], TB, BP[3:0] and WP-E bit in Status Register-1; OTP-L, OTP-E, ECC-E bit in Status Register-2. All other Status Register
bit locations are read-only and will not be affected by the Write Status Register instruction.
After power up, factory default for BP[3:0], TB, ECC- E bits are 1, while other bits are 0.
Figure 3-24 GET FEATURES (0Fh) Timing
Figure 3-25 SET FEATURES (1Fh) Timing
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3.8. PROTECTION, CONFIGURATION AND STATUS REGISTERS
Three Status Registers are provided for FS35ND01G-S1Y2: Protection Register (SR-1), Configuration Register (SR-2) & Status
Register (SR-3). Each register is accessed by Read Status Register and Write Status Register commands combined with 1-Byte
Register Address respectively.
The Read Status Register instruction (05h / 0Fh) can be used to provide status on the availability of the flash memory array,
whether the device is write enabled or disabled, the state of write protection, Read modes, Protection Register/OTP area lock
status, Erase/Program results, ECC usage/status. The Write Status Register instruction can be used to configure the device
write protection features, Software/Hardware write protection, Read modes, enable/disable ECC, Protection Register/OTP area
lock. Write access to the Status Register is controlled by the state of the non-volatile Status Register Protect bits (SRP0, SRP1),
the Write Enable instruction, and when WP-E is set to 1, the /WP pin.
3.8.1. Protection Register / Status Register-1 (Volatile Writable)
Figure 3-26a Protection Register / Status Register-1 (Address A0h)
Block Protect Bits (BP3, BP2, BP1, BP0, TB) – Volatile Writable
The Block Protect bits (BP3, BP2, BP1, BP0 & TB) are volatile read/write bits in the status register-1 (S6, S5, S4, S3 & S2) that
provide Write Protection control and status. Block Protect bits can be set using the Write Status Register Instruction. All, none
or a portion of the memory array can be protected from Program and Erase instructions (see Status Register Memory
Protection table). The default values for the Block Protection bits are 1 after power up to protect the entire array.
Write Protection Enable Bit (WP-E) – Volatile Writable
The Write Protection Enable bit (WP-E) is a volatile read/write bits in the status register-1 (S1). The WP-E bit, in conjunction
with SRP1 & SRP0, controls the method of write protection: software protection, hardware protection, power supply lock-down
or one time programmable (OTP) protection, /WP pin functionality, and Quad SPI operation enable/disable. When WP-E = 0
(default value), the device is in Software Protection mode, /WP & /HOLD pins are multiplexed as IO pins, and Quad
program/read functions are enabled all the time. When WP-E is set to 1, the device is in Hardware Protection mode, all Quad
functions are disabled and /WP & /HOLD pins become dedicated control input pins.
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Status Register Protect Bits (SRP1, SRP0) – Volatile Writable
The Status Register Protect bits (SRP1 and SRP0) are volatile read/write bits in the status register (S0 and S7). The SRP bits
control the method of write protection: software protection, hardware protection, power supply lock-down.
[Table 8]
Software Protection
Software Protection (Driven by Controller, Quad Program/Read is enabled)
SRP1
SRP0
WP-E
/WP / IO2
Descriptions
0
0
0
X
0
1
0
0
0
1
0
1
1
0
0
X
No /WP functionality
/WP pin will always function as IO2
SR-1 cannot be changed (/WP = 0 during Write Status)
/WP pin will function as IO2 for Quad operations
SR-1 can be changed (/WP = 1 during Write Status)
/WP pin will function as IO2 for Quad operations
Power Lock Down(1) SR-1
/WP pin will always function as IO2
[Table 9] Hardware Protection
Hardware Protection (System Circuit / PCB layout, Quad Program/Read is disabled)
SRP1
SRP0
WP-E
/WP only
Descriptions
0
X
1
VCC
SR-1 can be changed
1
0
1
VCC
Power Lock-Down(1)
X
X
1
GND
All "Write/Program/Erase" commands are blocked
Entire device (SRs, Array, OTP area) is read-only
SR-1
Notes:
1. When SRP1, SRP0 = (1, 0), a power-down, power-up cycle will change SRP1, SRP0 to (0, 0) state.
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3.8.2. Configuration Register / Status Register-2 (Volatile Writable)
Figure 3-26b Configuration Register / Status Register-2 (Address B0h)
One Time Program Lock Bit (OTP-L) – OTP lockable
In addition to the main memory array, FS35ND01G-S1Y2 also provides an OTP area for the system to store critical data that
cannot be changed once it’s locked. The OTP area consists of 10 pages of 2,112-Byte each. The default data in the OTP area are
FFh. Only Program command can be issued to the OTP area to change the data from “1” to “0”, and data is not reversible (“0” to
“1”) by the Erase command. Once the correct data is programmed in and verified, the system developer can set OTP-L bit to 1,
so that the entire OTP area will be locked to prevent further alteration to the data.
Enter OTP Access Mode Bit (OTP-E) – Volatile Writable
The OTP-E bit must be set to 1 in order to use the standard Program/Read commands to access the OTP area as well as to read
the Unique ID / Parameter Page information. The default value after power up or a RESET command is 0.
ECC Enable Bit (ECC-E) – Volatile Writable
FS35ND01G-S1Y2 has a built-in ECC algorithm that can be used to preserve the data integrity. Internal ECC calculation is done
during page programming, and the result is stored in the extra 64-Byte area for each page. During the data read operation, ECC
engine will verify the data values according to the previously stored ECC information and to make necessary corrections if
needed. The verification and correction status is indicated by the ECC Status Bits. ECC function is enabled by default when
power on (ECC-E=1), and it will not be reset to 0 by the Device Reset command.
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3.8.3. Status Register-3 (Status Only)
Figure 3-26c Status Register-3 (Address C0h)
Look-Up Table Full (LUT-F) – Status Only
To facilitate the NAND flash memory bad block management, the FS35ND01G-S1Y2 is equipped with an internal Bad Block
Management Look-Up-Table (BBM LUT). Up to 20 bad memory blocks may be replaced by a good memory block respectively.
The addresses of the blocks are stored in the internal Look-Up Table as Logical Block Address (LBA, the bad block) & Physical
Block Address (PBA, the good block). The LUT-F bit indicates whether the 20 memory block links have been fully utilized or not.
The default value of LUT-F is 0, once all 20 links are used, LUT-F will become 1, and no more memory block links may be
established.
Cumulative ECC Status (ECC-1, ECC-0) – Status Only
ECC function is used in NAND flash memory to correct limited memory errors during read operations. The ECC Status Bits
(ECC-1, ECC-0) should be checked after the completion of a Read operation to verify the data integrity. The ECC Status bits
values are don’t care if ECC-E=0. These bits will be cleared to 0 after a power cycle or a RESET command.
[Table 10]
ECC Status
ECC Status
Descriptions
ECC-1
ECC-0
0
0
Entire data output is successful, with 0~3bits/512bytes ECC corrections in a single page
0
1
Entire data output is successful, with 4bits/512bytes ECC corrections in a single page.
1
0
1
1
Entire data output contains more than 4 bits errors /512bytes only in a single page
which cannot be repaired by ECC.
Reserved
Program/Erase Failure (P-FAIL, E-FAIL) – Status Only
The Program/Erase Failure Bits are used to indicate whether the internally-controlled Program/Erase operation was executed
successfully or not. These bits will also be set respectively when the Program or Erase command is issued to a locked or
protected memory array or OTP area. Both bits will be cleared at the beginning of the Program Execute or Block Erase
instructions as well as the device RESET instruction.
Write Enable Latch (WEL) – Status Only
Write Enable Latch (WEL) is a read only bit in the status register (S1) that is set to 1 after executing a Write Enable Instruction.
The WEL status bit is cleared to 0 when the device is write disabled. A write disable state occurs upon power-up or after any of
the following instructions: Write Disable, Program Execute, Block Erase, Page Data Read, Program Execute and Bad Block
Management for OTP pages.
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Erase/Program In Progress (BUSY) – Status Only
BUSY is a read only bit in the status register (S0) that is set to a 1 state when the device is powering up or executing a Page Data
Read, Bad Block Management, Program Execute, Block Erase, Program Execute for OTP area, OTP Locking. During this time the
device will ignore further instructions except for the Read Status Register and Read JEDEC ID instructions. When the program,
erase or write status register instruction has completed, the BUSY bit will be cleared to a 0 state indicating the device is ready
for further instructions.
Reserved Bits – Non Functional
There are a few reserved Status Register bits that may be read out as a “0” or “1”. It is recommended to ignore the values of
those bits. During a “Write Status Register” instruction, the Reserved Bits can be written as “0”, but there will not be any effects.
[Table 11] MEMORY PROTECTION
STATUS REGISTER(1)
FS35ND01G-S1Y2 (1G-BIT / 128M-BYTE) MEMORY PROTECTION(2)
TB
BP3
BP2
BP1
BP0
0
PROTECTED
BLOCK(S)
NONE
PROTECTED PAGE
ADDRESS PA[15:0]
NONE
PROTECTED
DENSITY
NONE
PROTECTED
PORTION
NONE
X
0
0
0
0
0
0
0
1
1022 & 1023
FF80h - FFFFh
256KB
Upper 1/512
0
0
0
1
0
1020 thru 1023
FF00h - FFFFh
512KB
Upper 1/256
0
0
0
1
1
1016 thru 1023
FE00h - FFFFh
1MB
Upper 1/128
0
0
1
0
0
1008 thru 1023
FC00h - FFFFh
2MB
Upper 1/64
0
0
1
0
1
992 thru 1023
F800h - FFFFh
4MB
Upper 1/32
0
0
1
1
0
960 thru 1023
F000h - FFFFh
8MB
Upper 1/16
0
0
1
1
1
896 thru 1023
E000h - FFFFh
16MB
Upper 1/8
0
1
0
0
0
768 thru 1023
C000h - FFFFh
32MB
Upper 1/4
0
1
0
0
1
512 thru 1023
8000h - FFFFh
64MB
Upper 1/2
1
0
0
0
1
0&1
0000h – 007Fh
256KB
Lower 1/512
1
0
0
1
0
0 thru 3
0000h - 00FFh
512KB
Lower 1/256
1
0
0
1
1
0 thru 7
0000h - 01FFh
1MB
Lower 1/128
1
0
1
0
0
0 thru 15
0000h - 03FFh
2MB
Lower 1/64
1
0
1
0
1
0 thru 31
0000h - 07FFh
4MB
Lower 1/32
1
0
1
1
0
0 thru 63
0000h - 0FFFh
8MB
Lower 1/16
1
0
1
1
1
0 thru 127
0000h - 1FFFh
16MB
Lower 1/8
1
1
0
0
0
0 thru 255
0000h - 3FFFh
32MB
Lower 1/4
1
1
0
0
1
0 thru 511
0000h - 7FFFh
64MB
Lower 1/2
X
1
0
1
X
0 thru 1023
0000h - FFFFh
128MB
ALL
X
1
1
X
X
0 thru 1023
0000h - FFFFh
128MB
ALL
Notes:
1. X = don’t care
2. If any Erase or Program command specifies a memory region that contains protected data portion, this command will be ignored.
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FS35ND01G-S1Y2QWFI000
4. Error Management
This NAND Flash device is specified to have the minimum number of valid blocks (NVB) of the total available blocks per die
shown in the table below. This means the devices may have blocks that are invalid when shipped from the factory. An invalid
block is one that contains at least one page that has more bad bits than can be corrected by the minimum required ECC.
Additional bad blocks may develop with use. However, the total number of available blocks will not fall below NVB during the
endurance life of the product.
Although NAND Flash memory devices may contain bad blocks, they can be used reliably in systems that provide bad-block
management and error-correction algorithms. This ensures data integrity.
Internal circuitry isolates each block from other blocks, so the presence of a bad block does not affect the operation of the rest
of the NAND Flash array.
NAND Flash devices are shipped from the factory erased. The factory identifies invalid blocks before shipping by attempting to
program the bad-block mark into every location in the first page of each invalid block. It may not be possible to program every
location in an invalid block with the bad-block mark. However, the first spare area location in each bad block is guaranteed to
contain the bad-block mark. This method is compliant with ONFI factory defect mapping requirements. See the following table
for the bad-block mark.
System software should initially check the first spare area location for non-FFh data on the first page of each block prior to
performing any program or erase operations on the NAND Flash device. A bad-block table can then be created, enabling system
software to map around these areas. Factory testing is performed under worst-case conditions. Because invalid blocks may be
marginal, it may not be possible to recover the bad-block marking if the block is erased.
[Table 12] Error Management Details
Description
Requirement
Minimum number of valid blocks (NVB)
1004
Total available blocks per die
1024
First spare area location
Byte 2048
Bad-block mark
Non FFh
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5.
ECC Protection
The device offers data corruption protection by offering optional internal ECC. READs and PROGRAMs with internal ECC can be
enabled or disabled by setting feature bit ECC_EN. ECC is enabled after device power up, so the default READ and PROGRAM
commands operate with internal ECC in the “active” state.
To enable/disable ECC, perform the following command sequence:
Issue the SET FEATURES command (1FH).
eature bit ECC_EN as you want:
1. To enable ECC, Set ECC_EN to 1.
2. To disable ECC, Clear ECC_EN to 0.
During a PROGRAM operation, the device calculates an ECC code on the 2k page in the cache register, before the page is written
to the NAND Flash array.
During a READ operation, the page data is read from the array to the cache register, where the ECC code is calculated and
compared with the ECC code value read from the array. If error bits are detected, the error is corrected in the cache register.
Only corrected data is output on the I/O bus. The ECC status bit indicates whether or not the error correction was successful.
The ECC Protection table below shows the ECC protection scheme used throughout a page.
With internal ECC, the user must accommodate the following:
C can protect according main and spare areas. WRITEs to the ECC area are ignored.
Power on Read with internal ECC:
The device will automatically read first page of first block to cache after power on, then host can directly read data from cache
for easy boot. Also the data is promised correctly by internal ECC.
[Table13] ECC Protection and Spare Area
Min Byte Address
Max Byte Address
Number Of Bytes
Description
000H
1FFH
512
Sector 0
200H
3FFH
512
Sector 1
400H
5FFH
512
Sector 2
600H
7FFH
512
Sector 3
800H
80FH
16
Spare0
810H
81FH
16
Spare1
820H
82FH
16
Spare2
830H
83FH
16
Spare3
Notes：Byte2048 of page 0 for each block is “Bad Block Maker”
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Rev 1.4
FS35ND01G-S1Y2QWFI000
6. Electrical Characteristics
6.1. Absolute Maximum Ratings
[Table 14] Absolute Maximum Ratings
PARAMETERS
SYMBOL
Supply Voltage
VCC
Voltage Applied to Any Pin
VIO
Transient Voltage on any Pin
VIOT
CONDITIONS
RANGE
UNIT
–0.6 to +4.6
V
Relative to Ground = 1 / FC ;
2. characterized and not 100% tested.
[Table 20] Performance Timing
SYMBOL
tRST
CS# High to Next Command After Reset(FFh)
tRD
Page Read From Array
Page Program
tPROG
SPEC
PARAMETER
tERS
Block Erase
NOP
Number of partial page program
MIN
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TYP
MAX
UNIT
500
μs
120
450
μs
430
800
μs
2
10
ms
1
time
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FS35ND01G-S1Y2QWFI000
Figure 6-3 Serial Output Timing
Figure 6-4 Serial Input Timing
Figure 6-5 Hold Timing
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Figure 6-6 WP Timing
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7. Packaging Information
WSON8 (8x6mm)
Symbol
e
MIN
MAX
1.270 BSC
D
7.900
8.100
E
5.900
6.100
L
0.450
0.550
A
0.700
0.800
A1
0.000
0.050
C
0.180
0.250
b
0.350
0.450
D2
3.300
3.500
E2
4.200
4.400
Note: Dimensions are in Millimeters.
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