W29N02KVxxAF
W29N02KVxxAF
2G-BIT 3.3V
NAND FLASH MEMORY
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Release Date: August 19th, 2021
– Revision D
W29N02KVxxAF
Table of Contents
1.
GENERAL DESCRIPTION ............................................................................................................ 7
2.
FEATURES .................................................................................................................................... 7
3.
PACKAGE TYPES AND PIN CONFIGURATIONS ....................................................................... 8
3.1
Pin Assignment 48-pin TSOP1(x8) ....................................................................................... 8
3.2
Pin Assignment 48 ball VFBGA (x8) ..................................................................................... 9
3.3
Pin Assignment 63 ball VFBGA (x8) ................................................................................... 10
3.4
Pin Descriptions .................................................................................................................. 11
4.
PIN DESCRITPIONS ................................................................................................................... 12
4.1
Chip Enable (#CE) .............................................................................................................. 12
4.2
Write Enable (#WE) ............................................................................................................ 12
4.3
Read Enable (#RE) ............................................................................................................. 12
4.4
Address Latch Enable (ALE) .............................................................................................. 12
4.5
Command Latch Enable (CLE) ........................................................................................... 12
4.6
Write Protect (#WP) ............................................................................................................ 12
4.7
Ready/Busy (RY/#BY) ........................................................................................................ 12
4.8
Input and Output (I/Ox) ....................................................................................................... 12
5.
BLOCK DIAGRAM ....................................................................................................................... 13
6.
MEMORY ARRAY ORGANIZATION ........................................................................................... 14
6.1
Array Organization (x8) ....................................................................................................... 14
7.
MODE SELECTION TABLE ........................................................................................................ 15
8.
COMMAND TABLE ...................................................................................................................... 16
9.
DEVICE OPERATIONS ............................................................................................................... 17
9.1
READ Operation ................................................................................................................. 17
9.2
9.3
9.4
9.1.1
PAGE READ (00h-30h) ........................................................................................................ 17
9.1.2
TWO PLANE READ (00h-00h-30h) ...................................................................................... 17
9.1.3
RANDOM DATA OUTPUT (05h-E0h) ................................................................................... 19
9.1.4
READ ID (90h) ...................................................................................................................... 20
9.1.5
READ PARAMETER PAGE (ECh) ....................................................................................... 21
9.1.6
READ STATUS (70h) ........................................................................................................... 23
9.1.7
READ STATUS ENHANCED (78h) ...................................................................................... 25
9.1.8
READ UNIQUE ID (EDh) ...................................................................................................... 26
PROGRAM Operation ........................................................................................................ 27
9.2.1
PAGE PROGRAM (80h-10h) ................................................................................................ 27
9.2.2
SERIAL DATA INPUT (80h) ................................................................................................. 27
9.2.3
RANDOM DATA INPUT (85h) .............................................................................................. 28
9.2.4
TWO PLANE PAGE PROGRAM .......................................................................................... 29
COPY BACK Operation ...................................................................................................... 30
9.3.1
READ for COPY BACK (00h-35h) ........................................................................................ 30
9.3.2
PROGRAM for COPY BACK (85h-10h) ................................................................................ 31
9.3.3
TWO PLANE READ for COPY BACK ................................................................................... 32
9.3.4
TWO PLANE PROGRAM for COPY BACK .......................................................................... 32
BLOCK ERASE Operation .................................................................................................. 36
9.4.1
BLOCK ERASE (60h-D0h) ................................................................................................... 36
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9.4.2 TWO PLANE BLOCK ERASE.................................................................................................. 37
9.5
RESET Operation ............................................................................................................... 38
9.5.1
9.6
9.7
9.8
9.9
RESET (FFh) ........................................................................................................................ 38
FEATURE OPERATION ..................................................................................................... 39
9.6.1
GET FEATURES (EEh) ........................................................................................................ 42
9.6.2
SET FEATURES (EFh) ......................................................................................................... 43
ONE TIME PROGRAMMABLE (OTP) Area ....................................................................... 44
WRITE PROTECT .............................................................................................................. 45
BLOCK LOCK ..................................................................................................................... 47
10.
ELECTRICAL CHARACTERISTICS ............................................................................................ 48
10.1 Absolute Maximum Ratings (3.3V) ..................................................................................... 48
10.2 Operating Ranges (3.3V) .................................................................................................... 48
10.3 Device Power-up Timing..................................................................................................... 49
10.4 DC Electrical Characteristics (3.3V) ................................................................................... 50
10.5 AC Measurement Conditions (3.3V) ................................................................................... 51
10.6 AC Timing Characteristics for Command, Address and Data Input (3.3V) ........................ 52
10.7 AC Timing Characteristics for Operation (3.3V) ................................................................. 53
10.8 Program and Erase Characteristics .................................................................................... 54
11.
TIMING DIAGRAMS .................................................................................................................... 55
12.
INVALID BLOCK MANAGEMENT ............................................................................................... 64
12.1 Invalid Blocks ...................................................................................................................... 64
12.2 Initial Invalid Blocks ............................................................................................................ 64
12.3 Error in Operation ....................................... エラー! ブックマークが定義されていません。
12.4 Addressing in program operation ....................................................................................... 65
13.
PACKAGE DIMENSIONS ............................................................................................................ 66
13.1 TSOP 48-pin 12x20 ............................................................................................................ 66
13.2 Fine-Pitch Ball Grid Array 48-Ball ....................................................................................... 67
13.3 Fine-Pitch Ball Grid Array 63-Ball ....................................................................................... 68
14.
ORDERING INFORMATION ....................................................................................................... 69
15.
VALID PART NUMBERS ............................................................................................................. 70
16.
REVISION HISTORY ................................................................................................................... 71
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List of Tables
Table 3-1 Pin Descriptions ..........................................................................................................................11
Table 6-1 Addressing ..................................................................................................................................14
Table 7-1 Mode Selection ...........................................................................................................................15
Table 8-1 Command Table ..........................................................................................................................16
Table 9-1 Device ID and Configuration Codes for Address 00h .................................................................21
Table 9-2 ONFI Identifying Codes for Address 20h ....................................................................................21
Table 9-3 Parameter Page Output Value ....................................................................................................23
Table 9-4 Status Register Bit Definition ......................................................................................................24
Table 9-5 Features ......................................................................................................................................39
Table 9-6 Feature Address 80h ...................................................................................................................40
Table 9-7 Feature Address 81h ...................................................................................................................41
Table 10-1 Absolute Maximum Ratings ......................................................................................................48
Table 10-2 Operating Ranges .....................................................................................................................48
Table 10-3 DC Electrical Characteristics ....................................................................................................50
Table 10-4 AC Measurement Conditions ....................................................................................................51
Table 10-5 AC Timing Characteristics for Command, Address and Data Input .........................................52
Table 10-6 AC Timing Characteristics for Operation ..................................................................................53
Table 10-7 Program and Erase Characteristics ..........................................................................................54
Table 12-1 Valid Block Number...................................................................................................................64
Table 12-2 Block Failure .............................................................................................................................65
Table 15-1 Part Numbers for Industrial Grade ............................................................................................70
Table 15-1 Part Numbers for Industrial Plus Grade ....................................................................................70
Table 16-1 History Table .............................................................................................................................71
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List of Figures
Figure 3-1 Pin Assignment 48-pin TSOP1 (Package code S) ...................................................................... 8
Figure 3-2 Pin Assignment 48-ball VFBGA (Package code D) ..................................................................... 9
Figure 3-3 Pin Assignment 63-ball VFBGA (Package code B) ...................................................................10
Figure 5-1 NAND Flash Memory Block Diagram ........................................................................................13
Figure 6-1 Array Organization .....................................................................................................................14
Figure 9-1 Page Read Operations ..............................................................................................................17
Figure 9-2 Random Data Output .................................................................................................................19
Figure 9-3 Two Plane Random Data Output ...............................................................................................19
Figure 9-4 Read ID ......................................................................................................................................20
Figure 9-5 Read Parameter Page ...............................................................................................................21
Figure 9-6 Read Status Operation ..............................................................................................................23
Figure 9-7 Read Status Enhanced (78h) Operation....................................................................................25
Figure 9-8 Read Unique ID .........................................................................................................................26
Figure 9-9 Page Program ............................................................................................................................27
Figure 9-10 Random Data Input ..................................................................................................................28
Figure 9-11 Two Plane Page Program ........................................................................................................30
Figure 9-12 Program for copy back Operation ............................................................................................33
Figure 9-13 Copy Back Operation with Random Data Input .......................................................................33
Figure 9-14 Two Plane Copy Back..............................................................................................................34
Figure 9-15 Two Plane Copy Back with Random Data Input ......................................................................34
Figure 9-16 Two Plane Program for Copy Back .........................................................................................35
Figure 9-17 Block Erase Operation .............................................................................................................36
Figure 9-18 Two Plane Block Erase Operation ...........................................................................................37
Figure 9-19 Reset Operation .......................................................................................................................38
Figure 9-20 Get Feature Operation .............................................................................................................42
Figure 9-21 Set Feature Operation .............................................................................................................43
Figure 9-22 Erase Enable ...........................................................................................................................45
Figure 9-23 Erase Disable ...........................................................................................................................45
Figure 9-24 Program Enable .......................................................................................................................45
Figure 9-25 Program Disable ......................................................................................................................46
Figure 9-26 Program for Copy Back Enable ...............................................................................................46
Figure 9-27 Program for Copy Back Disable ..............................................................................................46
Figure 10-1 Power ON/OFF Sequence .......................................................................................................49
Figure 11-1 Command Latch Cycle.............................................................................................................55
Figure 11-2 Address Latch Cycle ................................................................................................................55
Figure 11-3 Data Latch Cycle ......................................................................................................................56
Figure 11-4 Serial Access Cycle after Read ...............................................................................................56
Figure 11-5 Serial Access Cycle after Read (EDO) ....................................................................................57
Figure 11-6 Read Status Operation ............................................................................................................57
Figure 11-7 Page Read Operation ..............................................................................................................58
Figure 11-8 #CE Don't Care Read Operation .............................................................................................58
Figure 11-9 Random Data Output Operation ..............................................................................................59
Figure 11-10 Read ID ..................................................................................................................................60
Figure 11-11 Page Program ........................................................................................................................60
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Figure 11-12 #CE Don't Care Page Program Operation .............................................................................61
Figure 11-13 Page Program with Random Data Input ................................................................................61
Figure 11-14 Copy Back ..............................................................................................................................62
Figure 11-15 Block Erase ............................................................................................................................62
Figure 11-16 Reset ......................................................................................................................................63
Figure 12-1 Flow Chart of Create Initial Invalid Block Table .......................................................................64
Figure 12-2 Bad Block Replacement ..........................................................................................................65
Figure 13-1 TSOP 48-PIN 12X20mm .........................................................................................................66
Figure 13-2 Fine-Pitch Ball Grid Array 48-Ball ............................................................................................67
Figure 13-3 Fine-Pitch Ball Grid Array 63-Ball ............................................................................................68
Figure 14-1 Ordering Part Number Description ..........................................................................................69
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1. GENERAL DESCRIPTION
The W29N02KV (2G-bit) NAND Flash memory provides a storage solution for embedded systems with
limited space, pins and power. It is ideal for code shadowing to RAM, solid state applications and storing
media data such as, voice, video, text and photos. The device operates on a single 2.7V to 3.6V power
supply with active current consumption as low as 25mA at 3V and 10uA for CMOS standby current.
The memory array totals 285,212,672 bytes, and organized into 2,048 erasable blocks of 139,264 bytes.
Each block consists of 64 programmable pages of 2,176-bytes each. Each page consists of 2,048-bytes
for the main data storage and 128-bytes for the spare data area (The spare area is typically used for error
management functions).
The W29N02KV supports the standard NAND flash memory interface using the multiplexed 8-bit bus to
transfer data, addresses, and command instructions. The five control signals, CLE, ALE, #CE, #RE and
#WE handle the bus interface protocol. Also, the device has two other signal pins, the #WP (Write Protect)
and the RY/#BY (Ready/Busy) for monitoring the device status.
2. FEATURES
Basic Features
– Density: 2Gbit (Single chip solution)
– Vcc: 2.7V to 3.6V
– Bus width: x8
– Operating temperature
Industrial: -40°C to 85°C
Industrial Plus: -40°C to 105°C
Single-Level Cell (SLC) technology.
Organization
– Density: 2G-bit/256M-byte
– Page size
2,176 bytes
– Block size
64 pages
Highest Performance
– Read performance (Max.)
Random read: 25us
Sequential read cycle: 25ns
– Write Erase performance
Page program time: 250us (typ.)
Block erase time: 2ms (typ.)
– Endurance: 60,000 Erase/Program
Cycles(1)
– Data retention: 10-years
Command set
– Standard NAND command set
– Additional command support
Copy Back
Two-plane operation
– Contact Winbond for OTP feature
– Contact Winbond for Block Lock feature
Lowest power consumption
– Read: 25mA(typ.)
– Program/Erase: 25mA(typ.)
– CMOS standby: 10uA(typ.)
Space Efficient Packaging
– 48-pin standard TSOP1
– 48-ball VFBGA
– 63-ball VFBGA
– Contact Winbond for stacked
packages/KGD
Note:
1.
Endurance specification is based on 4bit/544 byte ECC (Error Correcting Code).
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3.
PACKAGE TYPES AND PIN CONFIGURATIONS
W29N02KV is offered in a 48-pin TSOP1 package (Code S) and 48-ball VFBGA package (Code
D) as shown in Figure 3-1 to 3-2, respectively. Package diagrams and dimensions are illustrated
in Section: Package Dimensions.
3.1 Pin Assignment 48-pin TSOP1(x8)
Top View
X8
N.C
N.C
N.C
N.C
N.C
N.C
RY/#BY
#RE
#CE
N.C
N.C
Vcc
Vss
N.C
N.C
CLE
ALE
#WE
#WP
DNU
N.C
N.C
N.C
N.C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
X8
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
48-pin TSOP1
Standard package
12mm x 20mm
Vss1
N.C
N.C
N.C
IO7
IO6
IO5
IO4
N.C
Vcc1
DNU
Vcc
Vss
N.C
Vcc1
N.C
IO3
IO2
IO1
IO0
N.C
N.C
N.C
Vss1
Figure 3-1 Pin Assignment 48-pin TSOP1 (Package code S)
Note:
1.
These pins might not be connected in the package. Winbond recommends connecting these pins to the
designed external sources for ONFI compatibility.
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3.2 Pin Assignment 48 ball VFBGA (x8)
Top View, ball down
1
2
3
4
5
6
A
#WP
ALE
Vss
#CE
#WE
RY/#BY
B
N.C
#RE
CLE
N.C
N.C
N.C
C
N.C
N.C
N.C
N.C
N.C
N.C
D
N.C
N.C
N.C
N.C
N.C
N.C
E
DNU
N.C
DNU
N.C
N.C
N.C
F
N.C
IO0
N.C
N.C
N.C
Vcc
G
N.C
IO1
N.C
Vcc
IO5
IO7
H
Vss
IO2
IO3
IO4
IO6
Vss
Figure 3-2 Pin Assignment 48-ball VFBGA (Package code D)
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3.3
Pin Assignment 63 ball VFBGA (x8)
Top View, ball down
1
2
A
N.C
N.C
B
N.C
3
4
5
6
7
8
C
#WP
ALE
Vss
#CE
#WE
RY/#BY
D
N.C
#RE
CLE
N.C
N.C
N.C
E
N.C
N.C
N.C
N.C
N.C
N.C
F
N.C
N.C
N.C
N.C
N.C
N.C
G
DNU
N.C
DNU
N.C
N.C
N.C
H
N.C
IO0
N.C
N.C
N.C
Vcc
J
N.C
IO1
N.C
Vcc
IO5
IO7
K
Vss
IO2
IO3
IO4
IO6
Vss
9
10
N.C
N.C
N.C
N.C
L
N.C
N.C
N.C
N.C
M
N.C
N.C
N.C
N.C
Figure 3-3 Pin Assignment 63-ball VFBGA (Package code B)
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3.4
Pin Descriptions
PIN NAME
I/O
FUNCTION
#WP
I
Write Protect
ALE
I
Address Latch Enable
#CE
I
Chip Enable
#WE
I
Write Enable
RY/#BY
O
Ready/Busy
#RE
I
Read Enable
CLE
I
Command Latch Enable
I/O[0-7]
I/O
Vcc
Supply
Power supply
Vss
Supply
Ground
DNU
-
Do Not Use: DNUs must be left unconnected.
N.C
-
No Connect: NCs are not internally connected. They can be driven or left
unconnected.
Data Input/Output (x8)
Table 3-1 Pin Descriptions
Note:
1.
Connect all Vcc and Vss pins to power supply or ground. Do not leave Vcc or Vss disconnected.
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4. PIN DESCRITPIONS
4.1 Chip Enable (#CE)
#CE pin enables and disables device operation. When #CE is high the device is disabled and the
I/O pins are set to high impedance and enters into standby mode if not busy. When #CE is set
low the device will be enabled, power consumption will increase to active levels and the device is
ready for Read and Write operations.
4.2 Write Enable (#WE)
#WE pin enables the device to control write operations to input pins of the device. Such as,
command instructions, addresses and data that are latched on the rising edge of #WE.
4.3 Read Enable (#RE)
#RE pin controls serial data output from the pre-loaded Data Register. Valid data is present on
the I/O bus after the tREA period from the falling edge of #RE. Column addresses are incremented
for each #RE pulse.
4.4 Address Latch Enable (ALE)
ALE pin controls address input to the address register of the device. When ALE is active high,
addresses are latched via the I/O pins on the rising edge of #WE.
4.5 Command Latch Enable (CLE)
CLE pin controls command input to the command register of the device. When CLE is active high,
commands are latched into the command register via I/O pins on the rising edge of #WE.
4.6 Write Protect (#WP)
#WP pin can be used to prevent the inadvertent program/erase to the device. When #WP pin is
active low, all program/erase operations are disabled.
4.7 Ready/Busy (RY/#BY)
RY/#BY pin indicates the device status. When RY/#BY output is low, it indicates that the device
is processing either a program, erase or read operations. When it returns to high, those operations
have completed. RY/#BY pin is an open drain.
4.8 Input and Output (I/Ox)
I/Ox bi-directional pins are used for the following; command, address and data operations.
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5. BLOCK DIAGRAM
Status
Register
#CE
ALE
CLE
#RE
#WE
#WP
Command
Register
Column Decoder
Data Register
I/O
Control
I/Ox
Address
Register
NAND Flash
Array
Logic
Control
High Voltage
Generator
Row Decoder
RY/#BY
Figure 5-1 NAND Flash Memory Block Diagram
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6.
MEMORY ARRAY ORGANIZATION
6.1 Array Organization (x8)
2176 bytes
2176 bytes
DQ7
Data Register
2176bytes
2176bytes
1 block
1 block
DQ0
1page = 2176bytes
1block = 2176bytes×64 pages
136kbyte
1plane = 136kbyte×1024blocks
=1088Mb
1device = 1088M ×2planes
=2176Mb
1024
blocks
Per plane
2048
blocks
Per device
Plane of even
numbered blocks
Plane of- odd
numbered blocks
Figure 6-1 Array Organization
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
1st cycle
A7
A6
A5
A4
A3
A2
A1
A0
2nd cycle
L
L
L
L
A11
A10
A9
A8
3rd cycle
A19
A18
A17
A16
A15
A14
A13
A12
4th cycle
A27
A26
A25
A24
A23
A22
A21
A20
L
L
L
L
L
L
L
A28
5th
cycle
Table 6-1 Addressing
Notes:
1.
“L” indicates a low condition, which must be held during the address cycle to insure correct processing.
2.
A0 to A11 during the 1st and 2nd cycles are column addresses. A12 to A28 during the 3rd, 4th and 5th
cycles are row addresses.
3.
A18 is plane address
4.
The device ignores any additional address inputs that exceed the device’s requirement.
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7. MODE SELECTION TABLE
MODE
CLE
ALE
#CE
#WE
#RE
#WP
Read
mode
Command input
H
L
L
H
X
Address input
L
H
L
H
X
Program
Command input
H
L
L
H
H
Erase
mode
Address input
L
H
L
H
H
Data input
L
L
L
H
H
Sequential Read and Data output
L
L
L
H
During read (busy)
X
X
X
X
H
X
During program (busy)
X
X
X
X
X
H
During erase (busy)
X
X
X
X
X
H
Write protect
X
X
X
X
X
L
Standby
X
X
H
X
X
0V/Vcc
X
Table 7-1 Mode Selection
Notes:
1.
“H” indicates a HIGH input level, “L” indicates a LOW input level, and “X” indicates a Don’t Care Level.
2.
#WP should be biased to CMOS HIGH or LOW for standby.
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8. COMMAND TABLE
1ST
CYCLE
2ND
CYCLE
PAGE READ
00h
30h
READ for COPY BACK
00h
35h
READ ID
90h
READ STATUS
70h
Yes
RESET
FFh
Yes
PAGE PROGRAM
80h
10h
PROGRAM for COPY BACK
85h
10h
BLOCK ERASE
60h
D0h
RANDOM DATA INPUT*1
85h
RANDOM DATA OUTPUT*1
05h
READ PARAMETER PAGE
ECh
READ UNIQUE ID
EDh
GET FEATURES
EEh
SET FEATURES
EFh
READ STATUS ENHANCED
78h
TWO PLANE READ PAGE
00h
00h
30h
TWO PLANE READ FOR COPY BACK
00h
00h
35h
TWO PLANE RANDOM DATA
06h
E0h
TWO PLANE PROGRAM(TRADITIONAL)
80h
11h
81h
10h
TWO PLANE PROGRAM(ONFI)
80h
11h
80h
10h
COMMAND
READ
3rd
CYCLE
4th
CYCLE
E0h
Yes
TWO
PLANE
PROGRAM
BACK(TRADITIONAL)
FOR
COPY
85h
11h
81h
10h
TWO
PLANE
BACK(ONFI)
FOR
COPY
85h
11h
85h
10h
TWO PLANE BLOCK ERASE(TRADITIONAL)
60h
60h
D0h
TWO PLANE BLOCK ERASE(ONFI)
60h
D1h
60h
PROGRAM
Acceptable
during
busy
D0h
Table 8-1 Command Table
Notes:
1.
RANDOM DATA INPUT and RANDOM DATA OUTPUT command is only to be used within a page.
2.
Any commands that are not in the above table are considered as undefined and are prohibited as inputs.
3.
Do not cross plane address boundaries when using Copy Back Read and Program for copy back.
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9. DEVICE OPERATIONS
9.1 READ Operation
9.1.1
PAGE READ (00h-30h)
When the device powers on, 00h command is latched to command register. Therefore, system
only issues five address cycles and 30h command for initial read from the device. This operation
can also be entered by writing 00h command to the command register, and then write five address
cycles, followed by writing 30h command. After writing 30h command, the data is transferred from
NAND array to Data Register during tR. Data transfer progress can be done by monitoring the
status of the RY/#BY signal output. RY/#BY signal will be LOW during data transfer. Also, there
is an alternate method by using the READ STATUS (70h) command. If the READ STATUS
command is issued during read operation, the Read (00h) command must be re-issued to read
out the data from Data Register. When the data transfer is complete, RY/#BY signal goes HIGH,
and the data can be read from Data Register by toggling #RE. Read is sequential from initial
column address to the end of the page. (See Figure 9-1)
CLE
#CE
#WE
ALE
#RE
l/Ox
00h
Data Output ( Serial Access )
30h
Address (5cycles)
tR
RY/#BY
Don’t care
Figure 9-1 Page Read Operations
9.1.2 TWO PLANE READ (00h-00h-30h)
TWO PLANE READ (00h-00h-30h) transfers two pages data from the NAND array to the data
registers. Each page address have to be indicated different plane address.
To set the TWO PLANE READ mode, write the 00h command to the command register, and then
write five address cycles for plane 0. Secondly, write the 00h command to the command register,
and five address cycles for plane 1. Finally, the 30h command is issued. The first-plane and
second-plane addresses must be identical for all of issued address except plane address.
After the 30h command is written, page data is transferred from both planes to their respective
data registers in tR. RY/#BY goes LOW While these are transfered,. When the transfers are
complete, RY/#BY goes HIGH. To read out the data, at first, system writes TWO PLANE
RAMDOM DATA READ (06h-E0h) command to select a plane, next, repeatedly pulse #RE to
read out the data from selected plane. To change the plane address, issues TWO PLANE
RANDOM DATA READ (06h-E0h) command to select the another plane address, then repeatedly
pulse #RE to read out the data from the selected plane data register.
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Alternatively, data transfers can be monitored by the READ STATUS (70h). When the transfers
are complete, status register bit 6 is set to 1. To read data from the first of the two planes even
when READ STATUS ENHANCED (78h) command is used, the system must issue the TWO
PLANE RANDOM DATA READ (06h-E0h) command at first and pulse #RE repeatedly.
Write a TWO PLANE RANDOM DATA READ (06h-E0h) command to select the other plane ,after
the data cycle is complete. pulse #RE repeatedly to output the data beginning at the specified
column address,
During TWO PLANE READ operation,the READ STATUS ENHANCED (78h) command is
prohibited .
CLE
#WE
ALE
#RE
Plane address M
Plane address M
I/O×
00h
Col
Add1
Col
Add2
Column address J
Row
Add1
Row
Add2
Row
Add3
Col
Add1
00h
Plane 0 address
Col
Add2
Column address J
Row
Add1
Row
Add2
Row
Add3
30h
Plane 1 address
tR
RY/#BY
1
CLE
#WE
ALE
#RE
I/O×
06h
Address (5cycles)
Plane 0 or Plane 1 address
E0h
DOUT0 DOUT1
DOUTn
Selected Plane data
RY/#BY
1
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9.1.3 RANDOM DATA OUTPUT (05h-E0h)
The RANDOM DATA OUTPUT allows the selection of random column addresses to read out data
from a single or multiple of addresses. The use of the RANDOM DATA OUTPUT command is
available after the PAGE READ (00h-30h) sequence by writing the 05h command following by
the two cycle column address and then the E0h command. Toggling #RE will output data
sequentially. The RANDOM DATA OUTPUT command can be issued multiple times, but limited
to the current loaded page.
tR
RY/#BY
#RE
00h
I/Ox
Address(5cycles)
30h
Data out
05h
Address(2cycles)
E0h
Data out
Figure 9-2 Random Data Output
9.1.3.1.
TWO PLANE RANDOM DATA OUTPUT (06h-E0h)
TWO PLANE RANDOM DATA READ (06h-E0h) command can indicate to specified plane and
column address on data register . This command is accepted by a device when it is ready.
Issuing 06h to the command register, two column address cycles, three row address cycles, E0h
are followed, this enables data output mode on the address device’s data register at the specified
column address. After the E0h command , the host have to wait at least tWHR before requesting
data output. The selected device is in data output mode until another valid command is issued.
The TWO PLANE RANDOM DATA READ (06h-E0h) command is used to select the data register
to be enabled for data output. When the data output is complete on the selected plane, the
command can be issued again to start data output on another plane.
If there is a need to update the column address without selecting a new data register, the
RANDOM DATA READ (05h-E0h) command can be used instead.
CLE
#CE
#WE
ALE
#RE
I/O×
Data Out
06h
Address (5cycles)
E0h
Data Out
Figure 9-3 Two Plane Random Data Output
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9.1.4 READ ID (90h)
READ ID command is comprised of two modes determined by the input address, device (00h) or
ONFI (20h) identification information. To enter the READ ID mode, write 90h to the Command
Register followed by a 00h address cycle, then toggle #RE for 5 single byte cycles, W29N02KV.
The pre-programmed code includes the Manufacturer ID, Device ID, and Product-Specific
Information (see Table 9.1). If the READ ID command is followed by 20h address, the output code
includes 4 single byte cycles of ONFI identifying information (See Table 9.2). The device remains
in the READ ID Mode until the next valid command is issued.
CLE
#CE
#WE
tAR
ALE
#RE
I/Ox
tWHR
90h
tREA
Byte0
00h
Byte1
Byte2
Byte3
Byte4
(or 20h)
Address 1 Cycle
Figure 9-4 Read ID
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# of
Byte/Cycles
1st
Byte/Cycle
2nd
Byte/Cycle
3rd
Byte/Cycle
4th
Byte/Cycle
5th
Byte/Cycle
W29N02KV
EFh
DAh
10h
95h
06h
Device ID
Two Plane
Operation
Supported
Page Size: 2KB
Spare Area Size:128B
BLK Size w/o Spare:128KB
Organized:x8
Serial Access:25ns
Description
MFR ID
Table 9-1 Device ID and Configuration Codes for Address 00h
# of Byte/Cycles
1st
Byte/Cycle
2nd
Byte/Cycle
3rd
Byte/Cycle
4th
Byte/Cycle
Code
4Fh
4Eh
46h
49h
Table 9-2 ONFI Identifying Codes for Address 20h
9.1.5 READ PARAMETER PAGE (ECh)
READ PARAMETER PAGE can read out the device’s parameter data structure, such as,
manufacturer information, device organization, timing parameters, key features, and other
pertinent device parameters. The data structure is stored with at least three copies in the device’s
parameter page. Figure 9-9 shows the READ PARAMETER PAGE timing. The RANDOM DATA
OUTPUT (05h-E0h) command is supported during data output.
CLE
#WE
ALE
#RE
I/Ox
ECh
00h
P00
P10
・・・
P01
P11
・・・
tR
RY/#BY
Figure 9-5 Read Parameter Page
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Byte
Description
Value
0-3
Parameter page signature
4Fh, 4Eh, 46h, 49h
4-5
Revision number
02h, 00h
6-7
Features supported
18h,00h
8-9
Optional commands supported
3Ch,00h
10-31
Reserved
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h,
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
32-43
Device manufacturer
57h, 49h, 4Eh, 42h, 4Fh, 4Eh, 44h, 20h, 20h, 20h, 20h,
20h
44-63
Device model
64
W29N02KV
57h,32h,39h,4Eh,30h,32h,4Bh,56h,20h,20h,20h,20h,
20h,20h,20h,20h,20h,20h,20h,20h
Manufacturer ID
EFh
65-66
Date code
00h, 00h
67-79
Reserved
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h,
00h, 00h
80-83
# of data bytes per page
00h, 08h, 00h, 00h
84-85
# of spare bytes per page
80h, 00h
86-89
# of data bytes per partial page
00h, 02h, 00h, 00h
90-91
# of spare bytes per partial page
20h, 00h
92-95
# of pages per block
40h, 00h, 00h, 00h
96-99
# of blocks per unit
00h, 08h, 00h, 00h
100
# of logical units
01h
101
# of address cycles
23h
102
# of bits per cell
01h
103-104
Bad blocks maximum per unit
28h, 00h
105-106
Block endurance
01h, 05h
107
Guaranteed valid blocks at beginning
of target
01h
108-109
Block endurance for guaranteed valid
blocks
00h, 00h
110
# of programs per page
04h
111
Partial programming attributes
00h
112
# of ECC bits
04h
113
# of interleaved address bits
01h
114
Interleaved operation attributes
00h
Reserved
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h,
00h, 00h
I/O pin capacitance
0Ah
Timing mode support
1Fh, 00h
115-127
128
129-130
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Byte
Description
Value
131-132
Program cache timing
00h, 00h
133-134
Maximum page program time
BCh, 02h
135-136
Maximum block erase time
10h, 27h
137-138
Maximum random read time
19h, 00h
139-140
tCCS minimum
3Ch, 00h
141-163
Reserved
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h,
00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h,
00h
164-165
Vendor specific revision #
01h,00h
166-253
Vendor specific
00h
254-255
Integrity CRC
ECh, 21h
256-511
Value of bytes 0-255
512-767
Value of bytes 0-255
>767
Additional redundant parameter pages
Table 9-3 Parameter Page Output Value
9.1.6 READ STATUS (70h)
The W29N02KV has an 8-bit Status Register which can be read during device operation. Refer
to Table 9.3 for specific Status Register definitions. After writing 70h command to the Command
Register, read cycles will only read from the Status Register. The status can be read from I/O[7:0]
outputs, as long as #CE and #RE are LOW. Note; #RE does not need to be toggled for Status
Register read. The Command Register remains in status read mode until another command is
issued. To change to normal read mode, issue the PAGE READ (00h) command. After the PAGE
READ command is issued, data output starts from the initial column address.
#CE
tCLR
CLE
tREA
#WE
#RE
I/Ox
Status Output
70h
Figure 9-6 Read Status Operation
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SR bit
I/O 0
Page Read
Page Program
Block Erase
Definition
0=Successful
Program/Erase
Not Use
Pass/Fail
Pass/Fail
1=Error
in Program/Erase
I/O 1
Not Use
Not Use
Not Use
Don’t cared
I/O 2
Not Use
Not Use
Not Use
Don’t cared
I/O 3
Not Use
Not Use
Not Use
Don’t cared
I/O 4
Not Use
Not Use
Not Use
Don’t cared
I/O 5
Not Use
Not Use
Not Use
Don’t cared
I/O 6
Ready/Busy
Ready/Busy
Ready/Busy
I/O 7
Write Protect
Write Protect
Write Protect
Ready = 1
Busy = 0
Unprotected = 1
Protected = 0
Table 9-4 Status Register Bit Definition
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9.1.7 READ STATUS ENHANCED (78h)
The READ STATUS ENHANCED (78h) command returns the status of the addressed plane on
a target even when it is busy (SR BIT 6 = 0).
Writing 78h to the command register, followed by three row address cycles containing the page,
plane and block addresses that is same as executed addresses, puts the device into read status
mode. The device stays in this mode until another valid command is issued
The device status is returned when the host requests data output. The SR BIT 6 and SR bit 5 bits
of the status register are shared for all planes on the device. The SR BIT 1 and SR BIT 0 (SR
bit0) bits are specific to the plane specified in the row address.
The READ STATUS ENHANCED (78h) command also enables the device for data output. To
begin data output following a READ operation after the device is ready (SR BIT 6 = 1), issue the
READ MODE (00h) command, then begin data output. If the host needs to change the data
register that will output data, use the TWO PLANE RANDOMDATA READ (06h-E0h) command
after the device is ready
Use of the READ STATUS ENHANCED (78h) command is prohibited when OTP mode is enabled.
It is also prohibited following some of the other reset, identification.
CLE
#CE
#WE
ALE
#RE
I/O×
78h
Address (3cycles)
Status Output
Figure 9-7 Read Status Enhanced (78h) Operation
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9.1.8 READ UNIQUE ID (EDh)
The W29N02KV NAND Flash device has a method to uniquely identify each NAND Flash device
by using the READ UNIQUE ID command. The format of the ID is limitless, but the ID for every
NAND Flash device manufactured, will be guaranteed to be unique.
Numerous NAND controllers typically use proprietary error correction code (ECC) schemes. In
these cases Winbond cannot protect unique ID data with factory programmed ECC. However, to
ensure data reliability, Winbond will program the NAND Flash devices with 16 bytes of unique ID
code, starting at byte 0 on the page, immediately followed by 16 bytes of the complement of that
unique ID. The combination of these two actions is then repeated 16 times. This means the final
copy of the unique ID will resides at location byte 511. At this point an XOR or exclusive operation
can be performed on the first copy of the unique ID and its complement. If the unique ID is good,
the results should yield all the bits as 1s. In the event that any of the bits are 0 after the XOR
operation, the procedure can be repeated on a subsequent copy of the unique ID data.
CLE
#WE
ALE
#RE
I/Ox
EDh
00h
Byte0
Byte1
Byte14
Byte15
Unique ID data
tR
RY/#BY
Figure 9-8 Read Unique ID
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9.2 PROGRAM Operation
9.2.1 PAGE PROGRAM (80h-10h)
The W29N02KV Page Program command will program pages sequentially within a block, from
the lower order page address to higher order page address. Programming pages out of sequence
is prohibited. The W29N02KV supports partial-page programming operations up to 4 times before
an erase is required if partitioning a page. Note; programming a single bit more than once without
first erasing it is not supported.
9.2.2 SERIAL DATA INPUT (80h)
Page Program operation starts with the execution of the Serial Data Input command (80h) to the
Command Register, following next by inputting five address cycles and then the data is loaded.
Serial data is loaded to Data register with each #WE cycle. The Program command (10h) is written
to the Command Register after the serial data input is finished. At this time the internal write state
controller automatically executes the algorithms for program and verifies operations. Once the
programming starts, determining the completion of the program process can be done by
monitoring the RY/#BY output or the Status Register Bit 6, which will follow the RY/#BY signal.
RY/#BY will stay LOW during the internal array programming operation during the period of
(tPROG). During page program operation, only two commands are available, READ STATUS
(70h) and RESET (FFh). When the device status goes to the ready state, Status Register Bit 0
(I/O0) indicates whether the program operation passed (Bit0=0) or failed (Bit0=1), (see Figure 913). The Command Register remains in read status mode until the next command is issued.
tPROG
RY/#BY
I/Ox
80h
Address (5cycles)
Din
10h
70h
Status
I/O0=0pass
I/O0=1fail
Figure 9-9 Page Program
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9.2.3 RANDOM DATA INPUT (85h)
After the Page Program (80h) execution of the initial data has been loaded into the Data register,
if the need for additional writing of data is required, using the RANDOM DATA INPUT (85h)
command can perform this function to a new column address prior to the Program (10h) command.
The RANDOM DATA INPUT command can be issued multiple times in the same page (See
Figure 9-14).
CLE
#CE
#WE
ALE
#RE
tPROG
RY/#BY
I/Ox
80h
Address (5cycles)
Din
85h
Address
(2cycles)
Din
10h
70h
Status
Don’t care
Figure 9-10 Random Data Input
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9.2.4 TWO PLANE PAGE PROGRAM
TWO PLANE PAGE PROGRAM command make it possible for host to input data to the
addressed plane's data register and queue the data register to be moved to the NAND Flash
array.
This command can be issued several times. Each time a new plane address is specified that
plane is also queued for data transfer. To input data for the final plane and to begin the program
operation for all previously queued planes, the PAGE PROGRAM command have to be issued.
All of the queued planes will move the data to the NAND Flash array. when it is ready (SR BIT 6
= 1),this command is accepted.
At the block and page address is specified, input a page to the data register and queue it to be
moved to the NAND Flash array ,the 80h is issued to the command register. Unless this command
has been preceded by a TWO PLANE PAGE PROGRAM command, issuing the 80h to the
command register clears all of the data registers' contents on the selected target. Write five
address cycles containing the column address and row address; data input cycles follow. Serial
data is input beginning at the column address specified. At any time, while the data input cycle,
the RANDOM DATA INPUT (85h) command can be issued. When data input is complete, write
11h to the command register. The device will go busy (SR BIT 6 = 0, SR BIT 5 = 0) for tDBSY.
To ascertain the progress of tDBSY, the host can monitor the target's RY/#BY signal or, the status
operations (70h, 78h) can be used alternatively. When the device status shows that it is ready
(SR BIT 6 = 1), additional TWO PLANE PAGE PROGRAM commands can be issued to queue
additional planes for data transfer, then, the PAGE PROGRAM command can be issued.
When the PAGE PROGRAM command is used as the final command of a two plane program
operation, data is transferred from the data registers to the NAND Flash array for all of the
addressed planes during tPROG. When the device is ready (SR BIT 6 = 1, SR BIT 5 = 1), the
host should check the status of the SR BIT 0 for each of the planes to verify that programming
completed successfully.
When system issues TWO PLANE PAGE PROGRAM and PAGE PROGRAM commands, READ
STATUS (70h) command can confirm whether the operation(s) passed or failed. If the status after
READ STATUS (70h) command indicates an error (SR BIT 0 = 1 and/or SR BIT 1 = 1), READ
STATUS ENHANCED (78h) command can be determined which plane is failed.
TWO PLANE PROGRAM commands require five-cycle addresses, one address indicates the
operational plane. These addresses are subject to the following requirements:
• The column address bits must be valid address for each plane
• The plane select bit, A18, must be set to “L” for 1st address input, and set to “H” for 2nd address
input.
• The page address (A17-A12) and block address (A28-A19) of first input are don’t care. It follows
secondary inputted page address and block address.
Two plane operations must be same type operation across the planes; for example, it is not
possible to perform a PROGRAM operation on one plane with an ERASE operation on another.
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tPROG
(Program busy time)
tDBSY
RY/#BY
Busy
l/Ox
80h
Page program
Setup code
Address Inputs
A0-A11=Valid
A12-A17=set to `Low`
A18=set to `Low`
A19-A28=set to `Low`
Confirm
Code
Busy
※
81h
11h
Data Input
Multiplane Page
Program setup
code
Data Input
Address Inputs
A0-A11=Valid
A12-A17=Valid
A18=set to `High`
A19-A28=Valid
10h
Confirm
Code
70h
SR0
Read Status
Register
1)The same row address, except for A18, is applied to the two blocks.
2)Any command between 11h and 81h is prohibited except 70h,78h,and FFh
※81h:Traditional Protocol 80h:ONFI Protocol
80h
10h
81h
11h
Data
Input
FirstPlane
(1024 block)
Second Plane
(1024 block)
Block 0
Block 1
Block 2
Block 3
:
:
Block 2044
Block 2045
Block 2046
Block 2047
Figure 9-11 Two Plane Page Program
9.3 COPY BACK Operation
Copy Back operations require two command sets. Issue a READ for COPY BACK (00h-35h)
command first, then the PROGRAM for COPY BACK (85h-10h) command. Copy back operations
are only supported within a same plane.
9.3.1 READ for COPY BACK (00h-35h)
The READ for COPY BACK command is used together with the PROGRAM for COPY BACK
(85h-10h) command. To start execution, READ for COPY BACK (00h) command is written to the
Command Register, followed by the five cycles of the source page address. To start the transfer
of the selected page data from the memory array to the Data register, write the 35h command to
the Command Register.
After execution of the READ for COPY BACK command sequence and RY/#BY returns to HIGH
marking the completion of the operation, the transferred data from the source page into the Data
register may be read out by toggling #RE. Data is output sequentially from the column address
that was originally specified with the READ for COPY BACK command. RANDOM DATA
OUTPUT (05h-E0h) commands can be issued multiple times without any limitation after READ
for COPY BACK command has been executed (see Figures 9-19 and 9-20).
At this point the device is in ready state to accept the PROGRAM for COPY BACK command.
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9.3.2 PROGRAM for COPY BACK (85h-10h)
After the READ for COPY BACK command operation has been completed and RY/#BY goes
HIGH, the PROGRAM for COPY BACK command can be written to the Command Register. The
command results in the transfer of data from the Data register to the Data Register, then internal
operations start programming of the new destination page. The sequence would be, write 85h to
the Command Register, followed by the five cycle destination page address to the NAND array.
Next write the 10h command to the Command Register; this will signal the internal controller to
automatically start to program the data to new destination page. During this programming time,
RY/#BY will LOW. The READ STATUS command can be used instead of the RY/#BY signal to
determine when the program is complete. When Status Register Bit 6 (I/O6) equals to “1”, Status
Register Bit 0 (I/O0) will indicate if the operation was successful or not.
The RANDOM DATA INPUT (85h) command can be used during the PROGRAM for COPY BACK
command for modifying the original data. Once the data is copied into the Data register using the
READ for COPY BACK (00h-35h) command, follow by writing the RANDOM DATA INPUT (85h)
command, along with the address of the data to be changed. The data to be changed is placed
on the external data pins. This operation copies the data into the Data register. Once the 10h
command is written to the Command Register, the original data and the modified data are
transferred to the Data Register, and programming of the new page commences. The RANDOM
DATA INPUT command can be issued numerous times without limitation, as necessary before
starting the programming sequence with 10h command.
Since COPY BACK operations do not use external memory and the data of source page might
include a bit errors, a competent ECC scheme should be developed to check the data before
programming data to a new destination page.
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9.3.3 TWO PLANE READ for COPY BACK
To improve read through rate, TWO PLANE READ for COPY BACK operation is copied data
concurrently from one or two plane to the specified data registers.
TWO PLANE PROGRAM for COPY BACK command can move the data in two pages from the
data registers to different pages. This operation improves system performance than PROGRAM
for COPY BACK operation.
9.3.4 TWO PLANE PROGRAM for COPY BACK
Function of TWO PLANE PROGRAM for COPY BACK command is equal to TWO-PLANE PAGE
PROGRAM command, except that when 85h is written to the command register, then data
register contents are not cleared. Refer to TWO-PLANE PAGE PROGRAM for more details
features.
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CLE
#CE
#WE
ALE
#RE
I/ Ox
00h
Address (5cycles)
Data output
35h
05h
Address
(2cycles)
E0h
Data Output
85h
Address(5cycles)
10h
70h
Status
Output
No limitation
Optional
tPROG
tR
RY / # BY
Don’t care
Figure 9-12 Program for copy back Operation
CLE
#CE
#WE
ALE
#RE
tPROG
tR
RY/#BY
I/Ox
00h Address(5Cycles) 35h
DataOutput
85h Address(5cycles)
Data Input
85h
Address
(2cycles)
Data Input
10h
70h
Status
Output
No limitation
Optional
Don’t care
Figure 9-13 Copy Back Operation with Random Data Input
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tR
RY/#BY
#RE
00h
I/O×
Address(5cycles)
35h
Address(5cycles)
00h
Plane 0 source
Address(5cycles)
06h
E0h
Plane 0 or Plane 1 source address
Plane 1 source
1
RY/#BY
#RE
Data Output
I/O×
Address(2cycles)
05h
E0h
Data Output
Data from selected plane
From new column address
Selected Plan e
colu mn address
Data from selected Plane
1
2
Optional
tDBSY
tPROG
RY/#BY
#RE
85h
I/O×
Address(5cycles)
85h
11h
Plane 0 destination
Address(5cycles)
10h
70h
Status
Plane 1 destination
2
Figure 9-14 Two Plane Copy Back
tR
RY/#BY
I/O×
00h
Address(5cycles)
Plane 0 source
00h
Address(5cycles)
85h
35h
data
Address(5cycles)
85h
Address(2cycles)
Unlimited number
of repetitions
Plane 1 source
Plane 0 destination optional
Data
11h
1
tPROG
tDBSY
RY/#BY
I/O×
85h
Address(5cycles)
10h
70h
Status
Plane 1 destination
1
Figure 9-15 Two Plane Copy Back with Random Data Input
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Read
code
Read
code
l/O
00h
Address
(5 cycles)
35h
00h
Copy back
code
Address
(5 cycles)
Col Add1,2
Row Add1, 2,3
Source address on Plane1
Col Add1,2
Row Add1,2,3
Source address on Plane0
35h
Copy back
code
Address
(5 cycles)
85h
Col Add.1,2
Row Add.1,2,3
Destination address on Plane0
A0 - A11 = don’t care
A12-A17 = don’t care
A18
= set to `Low’
A19- A28 = don’t care
35h
11h
Read Status Register
※
85h
Address
(5 cycles)
10h
70h
SR0
Col Add.1,2
Row Add.1,2,3
Source address on Plane1
A0 - A11 = set to `Low’
A12-A17 = Valid
A18
= set to `High’
A19-A28 = Valid
tR
tR
tDBSY
tPROG
Busy
Busy
Busy
Busy
RY/#BY
Single plane copy back read can be used to two plane operation.
First plane
Second plane
SourcePage
SourcePage
TargetPage
TargetPage
(1)
(3)
Main area
(2)
Spare area
※85h:ONFI Protocol
81h:Traditional Protocol
(1):Read for copy back on first plane
(2):Read for copy back on second plane
(3):Two-plane copy back program
(3)
Main area
Spare area
Figure 9-16 Two Plane Program for Copy Back
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9.4 BLOCK ERASE Operation
9.4.1 BLOCK ERASE (60h-D0h)
Erase operations happen at the architectural block unit. This W29N02KV has 2048 erase blocks.
Each block is organized into 64 pages (x8:2176 bytes/page, x16:1088 words/page), 132K bytes
(x8:128K + 8K bytes, x16:64 K+ 4Kwords)/block. The BLOCK ERASE command operates on a
block by block basis.
Erase Setup command (60h) is written to the Command Register. Next, the three cycle block
address is written to the device. The page address bits are loaded during address block address
cycle, but are ignored. The Erase Confirm command (D0h) is written to the Command Register
at the rising edge of #WE, RY/#BY goes LOW and the internal controller automatically handles
the block erase sequence of operation. RY/#BY goes LOW during Block Erase internal operations
for a period of tBERS,
The READ STATUS (70h) command can be used for confirm block erase status. When Status
Register Bit6 (I/O6) becomes to “1”, block erase operation is finished. Status Register Bit0 (I/O0)
will indicate a pass/fail condition (see Figure 9-24).
CLE
#CE
#WE
ALE
#RE
I/Ox
60h
Address Input (3cycles)
70h
D0h
Status Output
I/ O 0 = 0 pass
I/ O 0 = 1 fail
tBERS
RY/#BY
Don’t care
Figure 9-17 Block Erase Operation
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9.4.2 TWO PLANE BLOCK ERASE
TWO PLANE BLOCK ERASE (60h-D1h) command indicates two blocks in the specified plane
that is to be erased. To start ERASE operation for indicated blocks in the specified plane, write
the BLOCK ERASE (60h-D0h) command.
To indicate a block to be erased, writing 60h to the command register, then, write three address
cycles containing the row address, the page address is ignored. By writing D1h command to
command register, the device will go busy (SR BIT 6 = 0, SR BIT 5 = 0) for tDBSY.
To confirm busy status during tDBSY, the host can monitor RY/#BY signal. Instead, system can
use READ STATUS (70h) or READ STATUS ENHANCED (78h) commands. When the status
shows ready (SR BIT 6 = 1, SR BIT 5 = 1), additional TWO PLANE BLOCK ERASE commands
can be issued for erasing two blocks in a specified plane.
When system issues TWO PLANE BLOCK ERASE (60h-D1h), and BLOCK ERASE (60h-D0h)
commands, READ STATUS (70h) command can confirm whether the operation(s) passed or
failed. If the status after READ STATUS (70h) command indicates an error (SR BIT 0 = 1), READ
STATUS ENHANCED (78h) command can be determined which plane is failed.
TWO PLANE BLOCK ERASE commands require three cycles of row addresses; one address
indicates the operational plane. These addresses are subject to the following requirements:
• The plane select bit, A18, must be different for each issued address.
• Block address (A28-A19) of first input is don’t care. It follows secondary inputted block address.
Two plane operations must be same type operation across the planes; for example, it is not
possible to perform a PROGRAM operation on one plane with an ERASE operation on another.
CLE
#CE
#WE
ALE
#RE
I/Ox
60h
R1A
R2A
R3A
D1h
60h
R1B
R2B
R3B
D0h
tDBSY
tBERS
Busy
Busy
RY/#BY
Don’t care
Figure 9-18 Two Plane Block Erase Operation
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9.5
RESET Operation
9.5.1 RESET (FFh)
READ, PROGRAM, and ERASE commands can be aborted by the RESET (FFh) command
during the time the W29N02KV is in the busy state. The Reset operation puts the device into
known status. The data that is processed in either the programming or erasing operations are no
longer valid. This means the data can be partially programmed or erased and therefore data is
invalid. The Command Register is cleared and is ready to accept next command. The Data
Register and Data register contents are marked invalid.
The Status Register indicates a value of E0h when #WP is HIGH; otherwise a value of 60h is
written when #WP is LOW. After RESET command is written to the command register, RY/#BY
goes LOW for a period of tRST (see Figure 9-20).
CLE
#CE
tWB
#WE
tRST
RY/#BY
I/Ox
FFh
RESET
command
Figure 9-19 Reset Operation
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9.6 FEATURE OPERATION
The GET FEATURES (EEh) and SET FEATURES (EFh) commands are used to change the
NAND Flash device behavior from the default power on settings. These commands use a onebyte feature address to determine which feature is to be read or modified. A range of 0 to 255
defines all features; each is described in the features table (see Table 9.5 thru 9.7). The GET
FEATURES (EEh) command reads 4-Byte parameter in the features table (See GET FEATURES
function). The SET FEATURES (EFh) command places the 4-Byte parameter in the features table
(See SET FEATURES function).
When a feature is set, meaning it remains active by default until the device is powered off. The
set feature remains the set even if a RESET (FFh) command is issued.
Feature address
00h
02h-7Fh
Description
N.A
Reserved
80h
Vendor specific parameter : Programmable I/O drive strength
81h
Vendor specific parameter : Programmable RY/#BY pull-down strength
82h-FFh
Reserved
Table 9-5 Features
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Feature Address 80h: Programmable I/O Drive Strength
Sub feature
Options
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
Value
Notes
1
parameter
P1
I/O
Full (default)
Reserved (0)
0
0
00h
drive strength
Three-quarters
Reserved (0)
0
1
01h
One-half
Reserved (0)
1
0
02h
One-quarter
Reserved (0)
1
1
03h
P2
Reserved (0)
00h
Reserved (0)
00h
Reserved (0)
00h
P3
P4
Table 9-6 Feature Address 80h
Note:
1.
The default drive strength setting is Full strength. The Programmable I/O Drive Strength mode is used
to change from the default I/O drive strength. Drive strength should be selected based on expected
loading of the memory bus. This table shows the four supported output drive-strength settings. The
device returns to the default drive strength mode when a power cycle has occurred. AC timing
parameters may need to be relaxed if I/O drive strength is not set to full.
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Feature Address 81h: Programmable RY/#BY Pull-down Strength
Sub feature
Options
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
Value
Notes
1
parameter
P1
RY/#BY
Full (default)
Reserved (0)
0
0
00h
pull-down
Three-quarters
Reserved (0)
0
1
01h
One-half
Reserved (0)
1
0
02h
One-quarter
Reserved (0)
1
1
03h
strength
P2
Reserved (0)
00h
Reserved (0)
00h
Reserved (0)
00h
P3
P4
Table 9-7 Feature Address 81h
Note:
1.
The default programmable RY/#BY pull-down strength is set to Full strength. The pull-down strength is
used to change the RY/#BY pull-down strength. RY/#BY pull-down strength should be selected based
on expected loading of RY/#BY. The four supported pull-down strength settings are shown. The device
returns to the default pull-down strength when a power cycle has occurred.
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9.6.1 GET FEATURES (EEh)
The GET FEATURES command returns the device feature settings including those previously set
by the SET FEATURES command. To use the Get Feature mode write the command (EEh) to
the Command Register followed by the single cycle byte Feature Address. RY/#BY will goes LOW
for the period of tFEAT. If Read Status (70h) command is issued for monitoring the process
completion status, Read Command (00h) has to be executed to re-establish data output mode.
Once, RY/#BY goes HIGH, the device feature settings can be read by toggling #RE. The device
remains in Feature Mode until another valid command is issued to Command Register. See
Figure 9-21.
CLE
#CE
#WE
ALE
#RE
I/Ox
EEh
P1
FA
Feature address
1 cycle
RY/#BY
P2
P3
P4
tFEAT
Figure 9-20 Get Feature Operation
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9.6.2 SET FEATURES (EFh)
The SET FEATURES command sets the behavior parameters by selecting a specified feature
address. To change device behavioral parameters, execute Set Feature command by writing EFh
to the Command Register, followed by the single cycle feature address. Each feature parameter
(P1-P4) is latched at the rising edge of each #WE. The RY/#BY signal will go LOW during the
period of tFEAT while the four feature parameters are stored. The Read Status (70h) command
can be issued for monitoring the progress status of this operation. The parameters are stored in
device until the device goes through a power on cycle. The device remains in feature mode until
another valid command is issued to Command Register.
CLE
#CE
#WE
ALE
#RE
tADL
I/Ox
EFh
FA
P1
P2
P3
P4
tWB
tFEAT
RY/#BY
Figure 9-21 Set Feature Operation
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9.7 ONE TIME PROGRAMMABLE (OTP) Area
The device has One-Time Programmable (OTP) memory area comprised of a number of pages
(2176 bytes/page) (1088words/page). This entire range of pages is functionally guaranteed. Only
the OTP commands can access the OTP area. When the device ships from Winbond, the OTP
area is in an erase state (all bits equal “1”). The OTP area cannot be erased, therefore protecting
the area only prevent further programming. Contact to Winbond for using this feature.
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9.8 WRITE PROTECT
#WP pin can enable or disable program and erase commands preventing or allowing program
and erase operations. Figure 9-29 to 9-34 shows the enabling or disabling timing with #WP setup
time (tWW) that is from rising or falling edge of #WP to latch the first commands. After first
command is latched, #WP pin must not toggle until the command operation is complete and the
device is in the ready state. (Status Register Bit5 (I/O5) equal 1)
# WE
tWW
I /Ox
60h
D0h
#WP
RY/#BY
Figure 9-22 Erase Enable
#WE
tWW
I/Ox
60h
D0h
#WP
RY/#BY
Figure 9-23 Erase Disable
#WE
tWW
I/Ox
80 h
10h
( or 15h )
#WP
RY/#BY
Figure 9-24 Program Enable
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#WE
tWW
I/Ox
80 h
10h
( or 15h)
#WP
RY/#BY
Figure 9-25 Program Disable
#WE
tWW
I/Ox
85h
10h
# WP
RY/#BY
Figure 9-26 Program for Copy Back Enable
#WE
tWW
I/Ox
10 h
85h
# WP
RY/#BY
Figure 9-27 Program for Copy Back Disable
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9.9
BLOCK LOCK
The device has block lock feature that can protect the entire device or user can indicate a ranges
of blocks from program and erase operations. Using this feature offers increased functionality and
flexibility data protection to prevent unexpected program and erase operations. Contact to
Winbond for using this feature.
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10. ELECTRICAL CHARACTERISTICS
10.1 Absolute Maximum Ratings (3.3V)
PARAMETERS
SYMBOL
Supply Voltage
CONDITIONS
VCC
Voltage Applied to Any Pin
VIN
Storage Temperature
Relative to Ground
TSTG
RANGE
UNIT
–0.6 to +4.6
V
–0.6 to +4.6
V
–65 to +150
°C
5
mA
Short circuit output current, I/Os
Table 10-1 Absolute Maximum Ratings
Notes:
1.
Minimum DC voltage is -0.6V on input/output pins. During transitions, this level may undershoot to 2.0V for periods
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