W25X32BVZEIG [WINBOND]
32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI; 与4KB扇区输出和双输出的SPI 32M位串行闪存
| 型号： | W25X32BVZEIG |
| 厂家： | 
WINBOND |
| 描述： | 32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI |
| 文件： | 总45页 (文件大小：1466K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
W25X32BV
32M-BIT
SERIAL FLASH MEMORY WITH
4KB SECTORS AND DUAL OUTPUT SPI
The W25Q32BV is recommended for all new 32Mb designs. The W25X32BV is
available for existing designs that require "25X" device ID for firmware
compatibility.
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 1-
W25X32BV
Table of Contents
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION ......................................................................................................... 4
FEATURES................................................................................................................................. 4
PIN CONFIGURATION SOIC 208-MIL....................................................................................... 5
PAD CONFIGURATION WSON 6X5-MM / WSON 8X6-MM ..................................................... 5
PIN DESCRIPTION SOIC 208-MIL, WSON 6X5-MM, WSON 8X6-MM .................................... 5
PIN CONFIGURATION SOIC 300-MIL....................................................................................... 6
PIN DESCRIPTION SOIC 300-MIL ............................................................................................ 6
7.1
7.2
7.3
7.4
7.5
7.6
7.7
Package Types............................................................................................................... 7
Chip Select (/CS)............................................................................................................ 7
Serial Data Output (DO) ................................................................................................. 7
Write Protect (/WP)......................................................................................................... 7
HOLD (/HOLD) ............................................................................................................... 7
Serial Clock (CLK) .......................................................................................................... 7
Serial Data Input / Output (DIO) ..................................................................................... 7
8.
9.
BLOCK DIAGRAM ...................................................................................................................... 8
FUNCTIONAL DESCRIPTION ................................................................................................... 9
9.1
SPI OPERATIONS ......................................................................................................... 9
9.1.1 SPI Modes........................................................................................................................9
9.1.2 Dual Output SPI................................................................................................................9
9.1.3 Hold Function ...................................................................................................................9
9.2
WRITE PROTECTION.................................................................................................. 10
9.2.1 Write Protect Features....................................................................................................10
10.
CONTROL AND STATUS REGISTERS................................................................................... 11
10.1 STATUS REGISTER .................................................................................................... 11
10.1.1 BUSY............................................................................................................................11
10.1.2 Write Enable Latch (WEL) ............................................................................................11
10.1.3 Block Protect Bits (BP2, BP1, BP0)..............................................................................11
10.1.4 Top/Bottom Block Protect (TB).....................................................................................11
10.1.5 Reserved Bits ...............................................................................................................11
10.1.6 Status Register Protect (SRP)......................................................................................12
10.1.7 Status Register Memory Protection..............................................................................12
10.2 INSTRUCTIONS........................................................................................................... 13
10.2.1 Manufacturer and Device Identification.........................................................................13
10.2.2 Instruction Set...............................................................................................................14
10.2.3 Write Enable (06h)........................................................................................................15
10.2.4 Write Disable (04h).......................................................................................................15
10.2.5 Read Status Register (05h) ..........................................................................................16
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W25X32BV
10.2.6 Write Status Register (01h) ..........................................................................................17
10.2.7 Read Data (03h)...........................................................................................................18
10.2.8 Fast Read (0Bh) ...........................................................................................................19
10.2.9 Fast Read Dual Output (3Bh) .......................................................................................20
10.2.10 Page Program (02h)...................................................................................................21
10.2.11 Sector Erase (20h) .....................................................................................................22
10.2.12 32KB Block Erase (52h) .............................................................................................23
10.2.13 Block Erase (D8h) ......................................................................................................24
10.2.14 Chip Erase (C7h or 60h).............................................................................................25
10.2.15 Power-down (B9h)......................................................................................................26
10.2.16 Release Power-down / Device ID (ABh).....................................................................27
10.2.17 Read Manufacturer / Device ID (90h).........................................................................29
10.2.18 JEDEC ID (9Fh)..........................................................................................................30
11.
ELECTRICAL CHARACTERISTICS......................................................................................... 31
11.1 Absolute Maximum Ratings.......................................................................................... 31
11.2 Operating Ranges......................................................................................................... 31
11.3 Power-up Timing and Write Inhibit Threshold .............................................................. 32
11.4 DC Electrical Characteristics........................................................................................ 33
11.5 AC Measurement Conditions........................................................................................ 34
11.6 AC Electrical Characteristics ........................................................................................ 35
11.7 AC Electrical Characteristics (cont’d) ........................................................................... 36
11.8 Serial Output Timing..................................................................................................... 37
11.9 Input Timing .................................................................................................................. 37
11.10 Hold Timing ................................................................................................................. 37
PACKAGE SPECIFICATION.................................................................................................... 38
12.1 8-Pin SOIC 208-mil (Package Code SS)...................................................................... 38
12.2 8-Contact 6x5mm WSON (Package Code ZP) ............................................................ 39
12.3 8-Contact 8x6mm WSON (Package Code ZE) ............................................................ 41
12.4 16-Pin SOIC 300-mil (Package Code SF).................................................................... 42
ORDERING INFORMATION .................................................................................................... 43
13.1 Valid Part Numbers and Top Side Marking .................................................................. 44
REVISION HISTORY................................................................................................................ 45
12.
13.
14.
Publication Release Date: October 7, 2009
- 3 -
Preliminary -- Revision C
W25X32BV
1. GENERAL DESCRIPTION
The W25X32BV (32M-bit) Serial Flash memory provides a storage solution for systems with limited
space, pins and power. The 25X series offers flexibility and performance well beyond ordinary Serial
Flash devices. They are ideal for code download applications as well as storing voice, text and data.
The devices operate on a single 2.7V to 3.6V power supply with current consumption as low as 4mA
active and 1µA for power-down. All devices are offered in space-saving packages.
The W25X32BV array is organized into 16, 384 programmable pages of 256-bytes each. Up to 256
bytes can be programmed at a time using the Page Program instruction. Pages can be erased in
groups of 16 (sector erase), groups of 128 (32KB block erase), groups of 256 (block erase) or the
entire chip (chip erase). The W25X32BV has 1,024 erasable sectors and 64 erasable blocks
respectively. The small 4KB sectors allow for greater flexibility in applications that require data and
parameter storage. (See figure 2.)
The W25X32BV supports the standard Serial Peripheral Interface (SPI), and a high performance dual
output SPI using four pins: Serial Clock, Chip Select, Serial Data I/O and Serial Data Out. SPI clock
frequencies of up to 104MHz are supported allowing equivalent clock rates of 208MHz when using the
Fast Read Dual Output instruction. These transfer rates are comparable to those of 8 and 16-bit
Parallel Flash memories.
A Hold pin, Write Protect pin and programmable write protect, with top or bottom array control
features, provide further control flexibility. Additionally, the device supports JEDEC standard
manufacturer and device identification.
2. FEATURES
Family of Serial Flash Memories
– W25X32BV: 32M-bit / 4M-byte (4,194,304)
– 256-bytes per programmable page
Flexible Architecture with 4KB sectors
– Sector Erase (4K-bytes)
– Block Erase (32K and 64K-byte)
– Page program up to 256 bytes <1ms
– More than 100,000 erase/write cycles
– More than 20-year retention
– Uniform 4K-byte Sectors / 64K-byte Blocks
SPI with Single or Dual Outputs
– Clock, Chip Select, Data I/O, Data Out
– Optional Hold function for SPI flexibility
Low Power Consumption, Wide
Temperature Range
– Single 2.7 to 3.6V supply
– 4mA active current, 1µA Power-down (typ)
– -40° to +85°C operating range
Data Transfer up to 208M-bits / second
– Clock operation to 104MHz
– Fast Read Dual Output instruction
– Auto-increment Read capability
Space Efficient Packaging
– 8-pin SOIC 208-mil
– 8-pad WSON 6x5mm
– 8-pad WSON 8x6mm(1)
– 16-pin SOIC 300-mil
Software and Hardware Write Protection
– Write-Protect all or portion of memory
– Enable/Disable protection with /WP pin
– Top or bottom array protection
Note 1: WSON-8 8x6mm is a special order package, please contact Winbond for ordering information
- 4 -
W25X32BV
3. PIN CONFIGURATION SOIC 208-MIL
Figure 1a. W25X32BV Pin Assignments, 8-pin SOIC 208-mil (Package Code SS)
4. PAD CONFIGURATION WSON 6X5-MM / WSON 8X6-MM
Figure 1b. W25X32BV Pad Assignments, 8-pad WSON 6X5-mm (Package Code ZP) and 8x6-mm (Package Code ZE)
5. PIN DESCRIPTION SOIC 208-MIL, WSON 6X5-MM, WSON 8X6-MM
PIN NO.
PIN NAME
/CS
I/O
I
FUNCTION
1
2
3
4
5
6
7
8
Chip Select Input
Data Output
DO
O
I
/WP
Write Protect Input
Ground
GND
DIO
I/O
Data Input / Output
Serial Clock Input
Hold Input
CLK
I
I
/HOLD
VCC
Power Supply
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 5 -
W25X32BV
6. PIN CONFIGURATION SOIC 300-MIL
Figure 1c. W25X32BV Pin Assignments, 16-pin SOIC 300-mil (Package Code SF)
7. PIN DESCRIPTION SOIC 300-MIL
PIN NO.
PIN NAME
/HOLD
VCC
N/C
I/O
FUNCTION
1
2
I
Hold Input
Power Supply
No Connect
3
4
N/C
No Connect
5
N/C
No Connect
6
N/C
No Connect
7
/CS
I
O
I
Chip Select Input
Data Output
Write Protect Input
Ground
8
DO
9
/WP
GND
N/C
10
11
12
13
14
15
16
No Connect
N/C
No Connect
N/C
No Connect
N/C
No Connect
DIO
I/O
I
Data Input / Output
Serial Clock Input
CLK
- 6 -
W25X32BV
7.1 Package Types
W25X32BV is offered in an 8-pin plastic 208-mil width SOIC (package code SS), 8-pad 6x5-mm
WSON (package code ZP) and 8x6-mm (package code ZE) as shown in figure 1a, and 1b,
respectively. The W25X32BV is also offered in a 16-pin plastic 300-mil width SOIC (package code SF)
as shown in figure 1c. Package diagrams and dimensions are illustrated at the end of this datasheet.
7.2 Chip Select (/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) pin is at high impedance. When deselected, the devices
power consumption will be at standby levels unless an internal erase, program or status register 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. The /CS input must track
the VCC supply level at power-up (see “Write Protection” and figure 21). If needed a pull-up resister
on /CS can be used to accomplish this.
7.3 Serial Data Output (DO)
The SPI Serial Data Output (DO) pin provides a means for data and status to be serially read from
(shifted out of) the device. Data is shifted out on the falling edge of the Serial Clock (CLK) input pin.
7.4 Write Protect (/WP)
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 (BP2, BP1, and BP0) bits and Status Register
Protect (SRP) bit, a portion or the entire memory array can be hardware protected. The /WP pin is
active low.
7.5 HOLD (/HOLD)
The Hold (/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 DIO 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. (“See Hold
function”)
7.6 Serial Clock (CLK)
The SPI Serial Clock Input (CLK) pin provides the timing for serial input and output operations. (“See
SPI Operations”)
7.7 Serial Data Input / Output (DIO)
The SPI Serial Data Input/Output (DIO) pin provides a means for instructions, addresses and data to
be serially written to (shifted into) the device. Data is latched on the rising edge of the Serial Clock
(CLK) input pin. The DIO pin is also used as an output when the Fast Read Dual Output instruction is
executed.
Publication Release Date: October 7, 2009
- 7 -
Preliminary -- Revision C
W25X32BV
8. BLOCK DIAGRAM
Block Segmentation
Write Control
Logic
/WP
Status
Register
High Voltage
Generators
/HOLD
CLK
Page Address
Latch / Counter
Beginning
Page Address
Ending
Page Address
SPI
Command &
Control Logic
/CS
Column Decode
And 256-Byte Page Buffer
Data
DIO
DO
Byte Address
Latch / Counter
Figure 2. W25X32BV Block Diagram
- 8 -
W25X32BV
9.
FUNCTIONAL DESCRIPTION
9.1 SPI OPERATIONS
9.1.1 SPI Modes
The W25X32BV is accessed through an SPI compatible bus consisting of four signals: Serial Clock
(CLK), Chip Select (/CS), Serial Data Input/Output (DIO) and Serial Data Output (DO). Both SPI bus
operation Modes 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. For Mode 3 the CLK
signal is normally high. In either case data input on the DIO pin is sampled on the rising edge of the
CLK. Data on the DO and DIO pins are clocked out on the falling edge of CLK.
9.1.2 Dual Output SPI
The W25X32BV supports Dual output operation when using the “Fast Read with Dual Output” (3B
hex) instruction. This feature allows data to be transferred from the Serial Flash memory at twice the
rate possible with the standard SPI. This instruction is ideal for quickly downloading code from Flash
to RAM upon power-up (code-shadowing) or for applications that cache code-segments to RAM for
execution. The Dual output feature simply allows the SPI input pin to also serve as an output during
this instruction. All other operations use the standard SPI interface with single output signal.
9.1.3 Hold Function
The /HOLD signal allows the W25X32BV operation to be paused while it is actively selected (when
/CS is low). The /HOLD function may be useful in cases where the SPI data and clock signals are
shared with other devices. For example, consider if the page buffer was only partially written when a
priority interrupt requires use of the SPI bus. In this case the /HOLD function can save the state of the
instruction and the data in the buffer so programming can resume where it left off once the bus is
available again.
To initiate a /HOLD condition, the device must be selected with /CS low. A /HOLD condition will
activate on the falling edge of the /HOLD signal if the CLK signal is already low. If the CLK is not
already low the /HOLD condition will activate after the next falling edge of CLK. The /HOLD condition
will terminate on the rising edge of the /HOLD signal if the CLK signal is already low. If the CLK is not
already low the /HOLD condition will terminate after the next falling edge of CLK.
During a /HOLD condition, the Serial Data Output (DO) is high impedance, and Serial Data
Input/Output (DIO) and Serial Clock (CLK) are ignored. The Chip Select (/CS) signal should be kept
active (low) for the full duration of the /HOLD operation to avoid resetting the internal logic state of the
device.
Publication Release Date: October 7, 2009
- 9 -
Preliminary -- Revision C
W25X32BV
9.2 WRITE PROTECTION
Applications that use non-volatile memory must take into consideration the possibility of noise and
other adverse system conditions that may compromise data integrity. To address this concern the
W25X32BV provides several means to protect data from inadvertent writes.
9.2.1 Write Protect Features
Device resets when VCC is below threshold.
Time delay write disable after Power-up.
Write enable/disable instructions.
Automatic write disable after program and erase.
Software write protection using Status Register.
Hardware write protection using Status Register and /WP pin.
Write Protection using Power-down instruction.
Upon power-up or at power-down the W25X32BV will maintain a reset condition while VCC is below
the threshold value of VWI, (See Power-up Timing and Voltage Levels and Figure 21). While reset, all
operations are disabled and no instructions are recognized. During power-up and after the VCC
voltage exceeds VWI, all program and erase related instructions are further disabled for a time delay of
tPUW. This includes the Write Enable, Page Program, Sector Erase, Block Erase, Chip Erase and the
Write Status Register instructions. Note that the chip select pin (/CS) must track the VCC supply level
at power-up until the VCC-min level and tVSL time delay is reached. If needed a pull-up resister on /CS
can be used to accomplish this.
After power-up the device is automatically placed in a write-disabled state with the Status Register
Write Enable Latch (WEL) set to a 0. A Write Enable instruction must be issued before a Page
Program, Sector Erase, Chip Erase or Write Status Register instruction will be accepted. After
completing a program, erase or write instruction the Write Enable Latch (WEL) is automatically
cleared to a write-disabled state of 0.
Software controlled write protection is facilitated using the Write Status Register instruction and setting
the Status Register Protect (SRP) and Block Protect (TB, BP2, BP1, and BP0) bits. These Status
Register bits allow a portion or all of the memory to be configured as read only. Used in conjunction
with the Write Protect (/WP) pin, changes to the Status Register can be enabled or disabled under
hardware control. See Status Register for further information.
Additionally, the Power-down instruction offers an extra level of write protection as all instructions are
ignored except for the Release Power-down instruction.
- 10 -
W25X32BV
10. CONTROL AND STATUS REGISTERS
The Read Status Register instruction can be used to provide status on the availability of the Flash
memory array, if the device is write enabled or disabled, and the state of write protection. The Write
Status Register instruction can be used to configure the device write protection features. See Figure 3.
10.1 STATUS REGISTER
10.1.1 BUSY
BUSY is a read only bit in the status register (S0) that is set to a 1 state when the device is executing
a Page Program, Sector Erase, Block Erase, Chip Erase or Write Status Register instruction. During
this time the device will ignore further instructions except for the Read Status Register instruction (see
tW, tPP, tSE, tBE, and tCE in AC Characteristics). 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.
10.1.2 Write Enable Latch (WEL)
Write Enable Latch (WEL) is a read only bit in the status register (S1) that is set to a 1 after executing
a Write Enable Instruction. The WEL status bit is cleared to a 0 when the device is write disabled. A
write disable state occurs upon power-up or after any of the following instructions: Write Disable, Page
Program, Sector Erase, Block Erase, Chip Erase and Write Status Register.
10.1.3 Block Protect Bits (BP2, BP1, BP0)
The Block Protect Bits (BP2, BP1, and BP0) are non-volatile read/write bits in the status register (S4,
S3, and S2) that provide Write Protection control and status. Block Protect bits can be set using the
Write Status Register Instruction (see tW in AC characteristics). All, none or a portion of the memory
array can be protected from Program and Erase instructions (see Status Register Memory Protection
table). The factory default setting for the Block Protection Bits is 0, none of the array protected. The
Block Protect bits can not be written to if the Status Register Protect (SRP) bit is set to 1 and the Write
Protect (/WP) pin is low.
10.1.4 Top/Bottom Block Protect (TB)
The Top/Bottom bit (TB) controls if the Block Protect Bits (BP2, BP1, BP0) protect from the Top
(TB=0) or the Bottom (TB=1) of the array as shown in the Status Register Memory Protection table.
The TB bit is non-volatile and the factory default setting is TB=0. The TB bit can be set with the Write
Status Register Instruction provided that the Write Enable instruction has been issued. The TB bit can
not be written to if the Status Register Protect (SRP) bit is set to 1 and the Write Protect (/WP) pin is
low.
10.1.5 Reserved Bits
Status register bit location S6 is reserved for future use. Current devices will read 0 for this bit
location. It is recommended to mask out the reserved bit when testing the Status Register. Doing this
will ensure compatibility with future devices.
Publication Release Date: October 7, 2009
- 11 -
Preliminary -- Revision C
W25X32BV
10.1.6 Status Register Protect (SRP)
The Status Register Protect (SRP) bit is a non-volatile read/write bit in status register (S7) that can be
used in conjunction with the Write Protect (/WP) pin to disable writes to status register. When the SRP
bit is set to a 0 state (factory default) the /WP pin has no control over status register. When the SRP
pin is set to a 1, the Write Status Register instruction is locked out while the /WP pin is low. When the
/WP pin is high the Write Status Register instruction is allowed.
Figure 3. Status Register Bit Locations
10.1.7 Status Register Memory Protection
STATUS REGISTER(1)
W25X32B (32M-BIT) MEMORY PROTECTION
TB
x
BP2 BP1 BP0
BLOCK(S)
NONE
ADDRESSES
DENSITY
NONE
64KB
128KB
256KB
512KB
1MB
PORTION
NONE
0
0
0
0
1
1
1
0
0
0
1
1
1
1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
NONE
0
0
0
0
0
0
1
1
1
1
1
1
x
63
3F0000h – 3FFFFFh
3E0000h – 3FFFFFh
3C0000h – 3FFFFFh
380000h – 3FFFFFh
300000h – 3FFFFFh
200000h – 3FFFFFh
000000h – 00FFFFh
000000h – 01FFFFh
000000h – 03FFFFh
000000h – 07FFFFh
000000h – 0FFFFFh
000000h – 1FFFFFh
000000h – 3FFFFFh
Upper 1/64
Upper 1/32
Upper 1/16
Upper 1/8
Upper 1/4
Upper 1/2
Lower 1/64
Lower 1/32
Lower 1/16
Lower 1/8
Lower 1/4
Lower 1/2
ALL
62 and 63
60 thru 63
56 thru 63
48 thru 63
32 thru 63
0
0 and 1
0 thru 3
0 thru 7
0 thru 15
0 thru 31
0 thru 63
2MB
64KB
128KB
256KB
512KB
1MB
2MB
4MB
Note:
1. x = don’t care
- 12 -
W25X32BV
10.2 INSTRUCTIONS
The instruction set of the W25X32BV consists of fifteen basic instructions that are fully controlled
through the SPI bus (see Instruction Set table). Instructions are initiated with the falling edge of Chip
Select (/CS). The first byte of data clocked into the DIO input provides the instruction code. Data on
the DIO input is sampled on the rising edge of clock with most significant bit (MSB) first.
Instructions vary in length from a single byte to several bytes and may be followed by address bytes,
data bytes, dummy bytes (don’t care), and in some cases, a combination. Instructions are completed
with the rising edge of edge /CS. Clock relative timing diagrams for each instruction are included in
figures 4 through 19. All read instructions can be completed after any clocked bit. However, all
instructions that Write, Program or Erase must complete on a byte boundary (CS driven high after a
full 8-bits have been clocked) otherwise the instruction will be terminated. This feature further protects
the device from inadvertent writes. Additionally, while the memory is being programmed or erased, or
when the Status Register is being written, all instructions except for Read Status Register will be
ignored until the program or erase cycle has completed.
10.2.1 Manufacturer and Device Identification
MANUFACTURER ID
(M7-M0)
Winbond Serial Flash
EFh
(ID15-ID0)
9Fh
Device ID
(ID7-ID0)
ABh, 90h
15h
Instruction
W25X32BV
3016h
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 13 -
W25X32BV
10.2.2 Instruction Set (1)
INSTRUCTION
NAME
BYTE 1
CODE
BYTE 2
BYTE 3
BYTE 4 BYTE 5
BYTE 6
N-BYTES
Write Enable
06h
04h
Write Disable
Read Status
Register
(2)
05h
(S7–S0)(1)
Write Status
Register
01h
03h
0Bh
S7–S0
Read Data
A23–A16
A23–A16
A15–A8
A15–A8
A7–A0
A7–A0
(D7–D0)
dummy
(Next byte)
(D7–D0)
continuous
(Next Byte)
continuous
Fast Read
I/O =
(D6,D4,D2,D0)
O =
(one byte
per 4 clocks,
continuous)
Fast Read Dual
Output
3Bh
A23–A16
A15–A8
A7–A0
dummy
(D7,D5,D3,D1)
Up to 256
bytes
Page Program
02h
20h
52h
D8h
A23–A16
A23–A16
A23–A16
A23–A16
A15–A8
A15–A8
A15–A8
A15–A8
A7–A0
A7–A0
A7–A0
A7–A0
(D7–D0)
(Next byte)
Sector Erase
(4KB)
Block Erase
(32KB)
Block Erase
(64KB)
Chip Erase
Power-down
Release Power-
down / Device ID
Manufacturer/
Device ID (3)
C7h/60h
B9h
ABh
90h
dummy
dummy
dummy
dummy
dummy
00h
(ID7-ID0)(4)
(M7-M0)
(ID7-ID0)
(ID15-ID8)
Memory
Type
(M7-M0)
Manufacturer
(ID7-ID0)
Capacity
JEDEC ID
9Fh
Notes:
1. Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis “( )” indicate data being
read from the device on the DO pin.
2. The Status Register contents will repeat continuously until /CS terminates the instruction.
3. See Manufacturer and Device Identification table for Device ID information.
4. The Device ID will repeat continuously until /CS terminates the instruction.
- 14 -
W25X32BV
10.2.3 Write Enable (06h)
The Write Enable instruction (Figure 4) 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, Sector Erase, Block Erase, Chip Erase
and Write Status Register 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 4. Write Enable Instruction Sequence Diagram
10.2.4 Write Disable (04h)
The Write Disable instruction (Figure 5) 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 DIO pin and then driving /CS high. Note that the WEL bit is automatically reset after Power-up
and upon completion of the Write Status Register, Page Program, Sector Erase, Block Erase and
Chip Erase instructions.
Figure 5. Write Disable Instruction Sequence Diagram
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
10.2.5 Read Status Register (05h)
The Read Status Register instruction allows the 8-bit Status Register to be read. The instruction is
entered by driving /CS low and shifting the instruction code “05h” into the DIO pin on the rising edge of
CLK. The status register bits are then shifted out on the DO pin at the falling edge of CLK with most
significant bit (MSB) first as shown in figure 6. The Status Register bits are shown in figure 3 and
include the BUSY, WEL, BP2-BP0, TB and SRP bits (see description of the Status Register earlier in
this datasheet).
The Status Register instruction may be used at any time, even while a Program, Erase or Write Status
Register cycle is in progress. This allows the BUSY status bit to be checked to determine when the
cycle is complete and if the device can accept another instruction. The Status Register can be read
continuously, as shown in Figure 6. The instruction is completed by driving /CS high.
Figure 6. Read Status Register Instruction Sequence Diagram
- 16 -
W25X32BV
10.2.6 Write Status Register (01h)
The Write Status Register instruction allows the Status Register to be written. A Write Enable
instruction must previously have been executed for the device to accept the Write Status Register
Instruction (Status Register bit WEL must equal 1). Once write enabled, the instruction is entered by
driving /CS low, sending the instruction code “01h”, and then writing the status register data byte as
illustrated in figure 7. The Status Register bits are shown in figure 3 and described earlier in this
datasheet.
Only non-volatile Status Register bits SRP, TB, BP2, BP1 and BP0 (bits 7, 5, 4, 3 and 2) can be
written to. All other Status Register bit locations are read-only and will not be affected by the Write
Status Register instruction.
The /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not
done the Write Status Register instruction will not be executed. After /CS is driven high, the self-timed
Write Status Register cycle will commence for a time duration of tW (See AC Characteristics). While
the Write Status Register cycle is in progress, the Read Status Register instruction may still accessed
to check the status of the BUSY bit. The BUSY bit is a 1 during the Write Status Register cycle and a
0 when the cycle is finished and ready to accept other instructions again. After the Write Register
cycle has finished the Write Enable Latch (WEL) bit in the Status Register will be cleared to 0.
The Write Status Register instruction allows the Block Protect bits (TB, BP2, BP1 and BP0) to be set
for protecting all, a portion, or none of the memory from erase and program instructions. Protected
areas become read-only (see Status Register Memory Protection table). The Write Status Register
instruction also allows the Status Register Protect bit (SRP) to be set. This bit is used in conjunction
with the Write Protect (/WP) pin to disable writes to the status register. When the SRP bit is set to a 0
state (factory default) the /WP pin has no control over the status register. When the SRP pin is set to a
1, the Write Status Register instruction is locked out while the /WP pin is low. When the /WP pin is
high the Write Status Register instruction is allowed.
Figure 7. Write Status Register Instruction Sequence Diagram
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
10.2.7 Read Data (03h)
The Read Data instruction allows one more data bytes to be sequentially read from the memory. The
instruction is initiated by driving the /CS pin low and then shifting the instruction code “03h” followed
by a 24-bit address (A23-A0) into the DIO pin. The code and address bits are latched on the rising
edge of the CLK pin. After the address is received, the data byte of the addressed memory 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. This means that the entire memory can be accessed with a
single instruction as long as the clock continues. The instruction is completed by driving /CS high. The
Read Data instruction sequence is shown in figure 8. If a Read Data instruction is issued while an
Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have any
effects on the current cycle. The Read Data instruction allows clock rates from D.C. to a maximum of
fR (see AC Electrical Characteristics).
Figure 8. Read Data Instruction Sequence Diagram
- 18 -
W25X32BV
10.2.8 Fast Read (0Bh)
The Fast Read instruction is similar to the Read Data instruction except that it can operate at the
highest possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding
eight “dummy” clocks after the 24-bit address as shown in figure 9. The dummy clocks allow the
devices internal circuits additional time for setting up the initial address. During the dummy clocks the
data value on the DIO pin is a “don’t care”.
Figure 9. Fast Read Instruction Sequence Diagram
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
10.2.9 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, DO and DIO, instead of just DO. This allows data to be
transferred from the W25X32BV at twice the rate of standard SPI devices. The Fast Read Dual Output
instruction is ideal for quickly downloading code from Flash to RAM upon power-up or for applications
that cache code-segments to RAM for execution.
Similar to the Fast Read instruction, the Fast Read Dual Output instruction can operate at the highest
possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding eight
“dummy” clocks after the 24-bit address as shown in figure 10. The dummy clocks allow the device's
internal circuits additional time for setting up the initial address. The input data during the dummy
clocks is “don’t care”. However, the DIO pin should be high-impedance prior to the falling edge of the
first data out clock.
Figure 10. Fast Read Dual Output Instruction Sequence Diagram
- 20 -
W25X32BV
10.2.10 Page Program (02h)
The Page Program instruction allows up to 256 bytes of data to be programmed at previously erased
to all 1s (FFh) memory locations. A Write Enable instruction must be executed before the device will
accept the Page Program Instruction (Status Register bit WEL must equal 1). The instruction is
initiated by driving the /CS pin low then shifting the instruction code “02h” followed by a 24-bit address
(A23-A0) and at least one data byte, into the DIO pin. The /CS pin must be held low for the entire
length of the instruction while data is being sent to the device.
If an entire 256 byte page is to be programmed, the last address byte (the 8 least significant address
bits) should be set to 0. If the last address byte is not zero, and the number of clocks exceed the
remaining page length, the addressing will wrap to the beginning of the page. In some cases, less
than 256 bytes (a partial page) can be programmed without having any effect on other bytes within the
same page. One condition to perform a partial page program is that the number of clocks can not
exceed the remaining page length. If more than 256 bytes are sent to the device the addressing will
wrap to the beginning of the page and overwrite previously sent data.
As with the write and erase instructions, the /CS pin must be driven high after the eighth bit of the last
byte has been latched. If this is not done the Page Program instruction will not be executed. After /CS
is driven high, the self-timed Page Program instruction will commence for a time duration of tpp (See
AC Characteristics). While the Page Program 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 Page Program cycle and becomes a 0 when the cycle is finished and the device is ready to accept
other instructions again. After the Page Program cycle has finished the Write Enable Latch (WEL) bit
in the Status Register is cleared to 0. The Page Program instruction will not be executed if the
addressed page is protected by the Block Protect (BP2, BP1, and BP0) bits (see Status Register
Memory Protection table).
Figure 11. Page Program Instruction Sequence Diagram
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Preliminary -- Revision C
W25X32BV
10.2.11 Sector Erase (20h)
The Sector Erase instruction sets all memory within a specified sector (4K-bytes) to the erased state
of all 1s (FFh). A Write Enable instruction must be executed before the device will accept the Sector
Erase Instruction (Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS
pin low and shifting the instruction code “20h” followed a 24-bit sector address (A23-A0) (see Figure
2). The Sector Erase instruction sequence is shown in figure 12.
The /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not
done the Sector Erase instruction will not be executed. After /CS is driven high, the self-timed Sector
Erase instruction will commence for a time duration of tSE (See AC Characteristics). While the Sector
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 Sector Erase cycle and becomes a 0 when the
cycle is finished and the device is ready to accept other instructions again. After the Sector Erase
cycle has finished the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Sector
Erase instruction will not be executed if the addressed page is protected by the Block Protect (TB,
BP2, BP1, and BP0) bits (see Status Register Memory Protection table).
Figure 12. Sector Erase Instruction Sequence Diagram
- 22 -
W25X32BV
10.2.12 32KB Block Erase (52h)
The Block Erase instruction sets all memory within a specified block (32K-bytes) to the erased state of
all 1s (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 “52h” followed a 24-bit block address (A23-A0) (see Figure 2).
The Block Erase instruction sequence is shown in figure 13.
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 tBE1 (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 page is protected by the Block Protect (SEC, TB,
BP2, BP1, and BP0) bits (see Status Register Memory Protection table).
Figure 13. 32KB Block Erase Instruction Sequence Diagram
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Preliminary -- Revision C
W25X32BV
10.2.13 Block Erase (D8h)
The Block Erase instruction sets all memory within a specified block (64K-bytes) to the erased state of
all 1s (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 a 24-bit block address (A23-A0) (see Figure
2). The Block Erase instruction sequence is shown in figure 14.
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 page is protected by the Block Protect (TB, BP2, BP1,
and BP0) bits (see Status Register Memory Protection table).
Figure 14. Block Erase Instruction Sequence Diagram
- 24 -
W25X32BV
10.2.14 Chip Erase (C7h or 60h)
The Chip Erase instruction sets all memory within the device to the erased state of all 1s (FFh). A
Write Enable instruction must be executed before the device will accept the Chip Erase Instruction
(Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS pin low and
shifting the instruction code “C7h” or “60h”. The Chip Erase instruction sequence is shown in figure
15.
The /CS pin must be driven high after the eighth bit has been latched. If this is not done the Chip
Erase instruction will not be executed. After /CS is driven high, the self-timed Chip Erase instruction
will commence for a time duration of tCE (See AC Characteristics). While the Chip Erase cycle is in
progress, the Read Status Register instruction may still be accessed to check the status of the BUSY
bit. The BUSY bit is a 1 during the Chip Erase cycle and becomes a 0 when finished and the device is
ready to accept other instructions again. After the Chip Erase cycle has finished the Write Enable
Latch (WEL) bit in the Status Register is cleared to 0. The Chip Erase instruction will not be executed
if any page is protected by the Block Protect (BP2, BP1, and BP0) bits (see Status Register Memory
Protection table).
Figure 15. Chip Erase Instruction Sequence Diagram
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
10.2.15 Power-down (B9h)
Although the standby current during normal operation is relatively low, standby current can be further
reduced with the Power-down instruction. The lower power consumption makes the Power-down
instruction especially useful for battery powered applications (See ICC1 and ICC2 in AC
Characteristics). The instruction is initiated by driving the /CS pin low and shifting the instruction code
“B9h” as shown in figure 16.
The /CS pin must be driven high after the eighth bit has been latched. If this is not done the Power-
down instruction will not be executed. After /CS is driven high, the power-down state will entered
within the time duration of tDP (See AC Characteristics). While in the power-down state only the
Release from Power-down / Device ID instruction, which restores the device to normal operation, will
be recognized. All other instructions are ignored. This includes the Read Status Register instruction,
which is always available during normal operation. Ignoring all but one instruction makes the Power
Down state a useful condition for securing maximum write protection. The device always powers-up in
the normal operation with the standby current of ICC1.
Figure 16. Deep Power-down Instruction Sequence Diagram
- 26 -
W25X32BV
10.2.16 Release Power-down / Device ID (ABh)
The Release from Power-down / Device ID instruction is a multi-purpose instruction. It can be used to
release the device from the power-down state, obtain the devices electronic identification (ID) number
or do both.
When used only to release the device from the power-down state, the instruction is issued by driving
the /CS pin low, shifting the instruction code “ABh” and driving /CS high as shown in figure 17. After
the time duration of tRES1 (See AC Characteristics) the device will resume normal operation and other
instructions will be accepted. The /CS pin must remain high during the tRES1 time duration.
When used only to obtain the Device ID while not in the power-down state, the instruction is initiated
by driving the /CS pin low and shifting the instruction code “ABh” followed by 3-dummy bytes. The
Device ID bits are then shifted out on the falling edge of CLK with most significant bit (MSB) first as
shown in figure 17. The Device ID values for the W25X32BV are listed in Manufacturer and Device
Identification table. The Device ID can be read continuously. The instruction is completed by driving
/CS high.
When used to release the device from the power-down state and obtain the Device ID, the instruction
is the same as previously described, and shown in figure 18, except that after /CS is driven high it
must remain high for a time duration of tRES2 (See AC Characteristics). After this time duration the
device will resume normal operation and other instructions will be accepted.
If the Release from Power-down / Device ID instruction is issued while an Erase, Program or Write
cycle is in process (when BUSY equals 1) the instruction is ignored and will not have any effects on
the current cycle
Figure 17. Release Power-down Instruction Sequence
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
Figure 18. Release Power-down / Device ID Instruction Sequence Diagram
- 28 -
W25X32BV
10.2.17 Read Manufacturer / Device ID (90h)
The Read Manufacturer/Device ID instruction is an alternative to the Release from Power-down/
Device ID instruction that provides both JEDEC assigned manufacturer ID and the specific device ID.
The Read Manufacturer/Device ID instruction is very similar to the Release from Power-down / Device
ID instruction. The instruction is initiated by driving the /CS pin low and shifting the instruction code
“90h” followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID for Winbond
(EFh) and the Device ID are shifted out on the falling edge of CLK with most significant bit (MSB) first
as shown in figure 19. The Device ID values for the W25X32BV are listed in Manufacturer and Device
Identification table. If the 24-bit address is initially set to 000001h the Device ID will be read first and
then followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously,
alternating from one to the other. The instruction is completed by driving /CS high.
Figure 19. Read Manufacturer / Device ID Diagram
Publication Release Date: October 7, 2009
- 29 -
Preliminary -- Revision C
W25X32BV
10.2.18 JEDEC ID (9Fh)
For compatibility reasons, the W25X32BV provides several instructions to electronically determine the
identity of the device. The Read JEDEC ID instruction is compatible with the JEDEC standard for SPI
compatible serial memories that was adopted in 2003.
The instruction is initiated by driving the /CS pin low and shifting the instruction code “9Fh”. The
JEDEC assigned Manufacturer ID byte for Winbond (EFh) and two Device ID bytes, Memory Type
(ID15-ID8) and Capacity (ID7-ID0) are then shifted out on the falling edge of CLK with most significant
bit (MSB) first as shown in figure 20. For memory type and capacity values refer to Manufacturer and
Device Identification table.
Figure 20. Read JEDEC ID
- 30 -
W25X32BV
11. ELECTRICAL CHARACTERISTICS(1)
(2)
11.1 Absolute Maximum Ratings
PARAMETERS
SYMBOL
VCC
CONDITIONS
RANGE
UNIT
Supply Voltage
–0.6 to +4.0
V
V
Voltage Applied to Any Pin
VIO
Relative to Ground
–0.6 to VCC +0.4
<20nS Transient
Relative to Ground
Transient Voltage on any Pin
VIOT
–2.0V to VCC+2.0V
V
Storage Temperature
TSTG
TLEAD
VESD
–65 to +150
See Note (3)
°C
°C
V
Lead Temperature
Electrostatic Discharge Voltage
Human Body Model(4) –2000 to +2000
Notes:
1. Specification for W25X32BV is preliminary. See preliminary designation at the end of this
document.
2. This device has been designed and tested for the specified operation ranges. Proper operation
outside of these levels is not guaranteed. Exposure to absolute maximum ratings may affect device
reliability. Exposure beyond absolute maximum ratings may cause permanent damage.
3. Compliant with JEDEC Standard J-STD-20C for small body Sn-Pb or Pb-free (Green) assembly
and the European directive on restrictions on hazardous substances (RoHS) 2002/95/EU.
4. JEDEC Std JESD22-A114A (C1=100 pF, R1=1500 ohms, R2=500 ohms).
11.2 Operating Ranges
SPEC
PARAMETER
SYMBOL CONDITIONS
UNIT
MIN
MAX
FR = 80MHz, fR = 50MHz
FR = 104MHz, fR = 50MHz
2.7
3.0
3.6
3.6
Supply Voltage(1)
VCC
TA
V
Ambient Temperature,
Operating
Industrial
–40
+85
°C
Note:
1. VCC voltage during Read can operate across the min and max range but should not exceed ±10%
of the programming (erase/write) voltage.
Publication Release Date: October 7, 2009
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Preliminary -- Revision C
W25X32BV
11.3 Power-up Timing and Write Inhibit Threshold
SPEC
PARAMETER
SYMBOL
UNIT
MIN
10
1
MAX
VCC (min) to /CS Low
tVSL(1)
tPUW(1)
VWI(1)
µs
ms
V
Time Delay Before Write Instruction
Write Inhibit Threshold Voltage
10
2
1
Note:
1. These parameters are characterized only.
Figure 21. Power-up Timing and Voltage Levels
- 32 -
W25X32BV
11.4 DC Electrical Characteristics
SPEC
TYP
PARAMETER
SYMBOL CONDITIONS
UNIT
MAX
MIN
Input Capacitance
Output Capacitance
Input Leakage
CIN(1)
Cout(1)
ILI
VIN = 0V(2)
6
8
pF
pF
µA
µA
VOUT = 0V(2)
±2
±2
I/O Leakage
ILO
/CS = VCC,
VIN = GND or VCC
Standby Current
ICC1
ICC2
ICC3
ICC3
ICC3
ICC4
25
<1
50
5
µA
µA
/CS = VCC,
VIN = GND or VCC
Power-down Current
Current Read Data /
Dual Output 1MHz(2)
C = 0.1 VCC / 0.9 VCC
DO = Open
4/5
6/7.5
9/10
15/16.5
mA
mA
mA
Current Read Data /
Dual Output 33MHz(2)
C = 0.1 VCC / 0.9 VCC
DO = Open
6/7
Current Read Data /
Dual Output 80MHz(2)
C = 0.1 VCC / 0.9 VCC
DO = Open
10/11
Current Write Status
Register
/CS = VCC
/CS = VCC
/CS = VCC
/CS = VCC
8
12
25
25
mA
mA
mA
Current Page Program ICC5
20
20
20
Current Sector/Block
Erase
ICC6
Current Chip Erase
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
ICC7
VIL
25
mA
V
–0.5
VCCx0.3
VCC+0.4
0.4
VIH
VCCx0.7
V
VOL
VOH
IOL = 1.6 mA
V
IOH = –100 µA
VCC–0.2
V
Notes:
1. Tested on sample basis and specified through design and characterization data. TA=25°C, VCC=3V.
2. Checker Board Pattern.
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 33 -
W25X32BV
11.5 AC Measurement Conditions
SPEC
PARAMETER
SYMBOL
UNIT
MAX
MIN
Load Capacitance
CL
TR, TF
VIN
30
5
pF
ns
V
Input Rise and Fall Times
Input Pulse Voltages
0.2 VCC to 0.8 VCC
0.3 VCC to 0.7 VCC
0.5 VCC to 0.5 VCC
Input Timing Reference Voltages
Output Timing Reference Voltages
IN
V
OUT
V
Note:
1. Output Hi-Z is defined as the point where data out is no longer driven.
Figure 22. AC Measurement I/O Waveform
- 34 -
W25X32BV
11.6 AC Electrical Characteristics
SPEC
DESCRIPTION
SYMBOL ALT
UNIT
MHz
MHz
MIN
TYP
MAX
Clock frequency for all instructions,
except Read Data (03h)
2.7V-3.6V VCC & Industrial Temperature
FR
FR
fc
D.C.
80
Clock frequency for all instructions,
except Read Data (03h)
fc
D.C.
104
50
3.0V-3.6V VCC & Commercial Temperature
Clock freq. Read Data instruction 03h
fR
D.C.
4.5
MHz
ns
Clock High, Low Time, for Fast Read (0Bh, 3Bh) /
other instructions except Read Data (03h)
tCLH,
(1)
tCLL
Clock High, Low Time for Read Data (03h)
instruction
tCRLH,
tCRLL
8
ns
(1)
(2)
Clock Rise Time peak to peak
Clock Fall Time peak to peak
/CS Active Setup Time relative to CLK
/CS Not Active Hold Time relative to CLK
Data In Setup Time
tCLCH
0.1
V/ns
V/ns
ns
(2)
tCHCL
0.1
tSLCH
tCHSL
tDVCH
tCHDX
tCHSH
tSHCH
tSHSL
tCSS
5
5
ns
tDSU
tDH
2
ns
Data In Hold Time
5
5
ns
/CS Active Hold Time relative to CLK
/CS Not Active Setup Time relative to CLK
ns
5
ns
/CS Deselect Time (for Array ReadArray Read /
Erase or Program Read Status Register)
tCSH
10/50
ns
(2)
Output Disable Time
Clock Low to Output Valid
Output Hold Time
tSHQZ
tDIS
tV
7
7
ns
ns
ns
tCLQV
tCLQX
tHO
0
Continued – next page
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 35 -
W25X32BV
11.7 AC Electrical Characteristics (cont’d)
SPEC
DESCRIPTION
SYMBOL ALT
UNIT
MIN
5
TYP
MAX
/HOLD Active Setup Time relative to CLK
/HOLD Active Hold Time relative to CLK
/HOLD Not Active Setup Time relative to CLK
/HOLD Not Active Hold Time relative to CLK
/HOLD to Output Low-Z
tHLCH
tCHHH
tHHCH
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
5
5
tCHHL
5
(2)
tHHQX
tLZ
7
(2)
/HOLD to Output High-Z
tHLQZ
tWHSL
tSHWL
tHZ
12
(3)
(3)
Write Protect Setup Time Before /CS Low
Write Protect Hold Time After /CS High
/CS High to Power-down Mode
20
100
(2)
tDP
3
3
/CS High to Standby Mode without Electronic
Signature Read
tRES1(2)
tRES2(2)
/CS High to Standby Mode with Electronic
Signature Read
1.8
µs
Write Status Register Time
Byte Program Time (First Byte) (4)
Additional Byte Program Time (After First Byte) (4)
Page Program Time
tW
tBP1
tBP2
tPP
tSE
10
20
15
50
ms
µs
µs
ms
ms
ms
ms
s
2.5
0.7
30
12
3
Sector Erase Time (4KB)
200
800
1,000
15
Block Erase Time (32KB)
Block Erase Time (64KB)
Chip Erase Time
tBE
120
150
7
1
tBE
2
tCE
Notes:
1. Clock high + Clock low must be less than or equal to 1/fC.
2. Value guaranteed by design and/or characterization, not 100% tested in production.
3. Only applicable as a constraint for a Write Status Register instruction when SRP is set to 1.
4. For multiple bytes after first byte within a page, tBPN = tBP1 + tBP2 * N (typical) and tBPN = tBP1 + tBP2 * N (max), where
N = number of bytes programmed.
- 36 -
W25X32BV
11.8 Serial Output Timing
11.9 Input Timing
11.10 Hold Timing
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 37 -
W25X32BV
12. PACKAGE SPECIFICATION
12.1 8-Pin SOIC 208-mil (Package Code SS)
MILLIMETERS
SYMBOL
INCHES
NOM
MIN
NOM
MAX
MIN
MAX
A
A1
A2
b
C
D
D1
E
E1
e
H
L
1.75
0.05
1.70
0.35
0.19
5.18
5.13
5.18
5.13
1.95
0.15
1.80
0.42
0.20
5.28
5.23
5.28
5.23
1.27 BSC
7.90
0.65
-
2.16
0.25
1.91
0.48
0.25
5.38
5.33
5.38
5.33
0.069
0.002
0.067
0.014
0.007
0.204
0.202
0.204
0.202
0.077
0.006
0.071
0.017
0.008
0.208
0.206
0.208
0.206
0.050 BSC
0.311
0.026
-
0.085
0.010
0.075
0.019
0.010
0.212
0.210
0.212
0.210
7.70
0.50
-
8.10
0.80
0.010
8°
0.303
0.020
-
0.319
0.031
0.004
8°
y
θ
0°
-
0°
-
Notes:
1. Controlling dimensions: millimeters, unless otherwise specified.
2. BSC = Basic lead spacing between centers.
3. Dimensions D1 and E1 do not include mold flash protrusions and should be measured from the bottom of the package.
4. Formed leads coplanarity with respect to seating plane shall be within 0.004 inches.
- 38 -
W25X32BV
12.2 8-Contact 6x5mm WSON (Package Code ZP)
MILLIMETERS
SYMBOL
INCHES
MIN
0.70
0.00
TYP.
0.75
0.02
MAX
0.80
0.05
MIN
TYP.
0.0295
0.0007
MAX
0.0314
0.0019
A
0.0275
0.0000
A1
b
C
0.35
-
0.40
0.20 REF.
6.00
0.48
-
0.0137
-
0.0157
0.0078 REF.
0.2362
0.0188
-
D
5.90
3.35
4.90
4.25
6.10
3.45
5.10
4.35
0.2322
0.1318
0.1929
0.1673
0.2401
0.1358
0.2007
0.1712
D2
E
3.40
0.1338
5.00
0.1968
4.30
0.1692
E2
(2)
1.27 BSC
0.0500 BSC
E
L
y
0.55
0.00
0.60
-
0.65
0.75
0.0216
0.0000
0.0236
-
0.0255
0.0029
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 39 -
W25X32BV
8-Pad WSON 6x5mm Cont’d.
MILLIMETERS
TYP.
INCHES
TYP.
SYMBOL
MIN
MAX
MIN
MAX
SOLDER PATTERN
M
N
P
3.40
4.30
6.00
0.50
0.75
0.1338
0.1692
0.2360
0.0196
0.0255
Q
R
Notes:
1. Advanced Packaging Information; please contact Winbond for the latest minimum and maximum specifications.
2. BSC = Basic lead spacing between centers.
3. Dimensions D and E do not include mold flash protrusions and should be measured from the bottom of the package.
4. The metal pad area on the bottom center of the package is connected to the device ground (GND pin). Avoid placement of
exposed PCB vias under the pad.
- 40 -
W25X32BV
12.3 8-Contact 8x6mm WSON (Package Code ZE)
MILLIMETERS
SYMBOL
INCHES
MIN TYP.
MAX
0.80
0.05
MIN
TYP.
MAX
A
0.70
0.00
0.75
0.02
0.02755
0.0000
0.02952
0.00078
0.03149
0.00196
A1
b
C
0.35
0.19
7.90
4.60
5.90
5.15
0.40
.0.20
8.00
0.48
0.25
8.10
4.70
6.10
5.25
0.01377
0.00748
0.31102
0.18110
0.23228
0.20275
0.01574
0.00787
0.31496
0.18307
0.23622
0.20472
0.05000 BSC
0.01889
0.00984
0.31889
0.18503
0.24015
0.20669
D
D2
E
4.65
6.00
E2
e
5.20
1.27 BSC
L
0.45
0.50
0.55
0.01771
0.01968
0.02165
Publication Release Date: October 7, 2009
Preliminary -- Revision C
- 41 -
W25X32BV
12.4 16-Pin SOIC 300-mil (Package Code SF)
MILLIMETERS
SYMBOL
INCHES
NOM
MIN
NOM
MAX
MIN
MAX
A
A1
A2
b
C
D
2.36
0.10
-
0.33
0.18
10.08
10.01
7.39
2.49
-
2.64
0.30
-
0.51
0.28
10.49
10.64
7.59
0.093
0.004
-
0.013
0.007
0.397
0.394
0.291
0.098
-
0.104
0.012
-
0.020
0.011
0.413
0.419
0.299
2.31
0.41
0.23
10.31
10.31
7.49
0.091
0.016
0.009
0.406
0.406
0.295
E
E1
2
1.27 BSC
0.50 BSC
E
L
y
θ
0.38
-
0°
0.81
-
-
1.27
0.076
8°
0.015
-
0°
0.032
-
-
0.050
0.003
8°
Notes:
1. Controlling dimensions: inches, unless otherwise specified.
2. BSC = Basic lead spacing between centers.
3. Dimensions D and E1 do not include mold flash protrusions and should be measured from the bottom of the package.
- 42 -
W25X32BV
13. ORDERING INFORMATION(1)
W 25X xxB V xx(2)
W
=
Winbond
25X
32B
=
=
spiFlash Serial Flash Memory with 4KB sectors, Dual Outputs
32M-bit
V
=
2.7V to 3.6V
SS
ZE
=
8-pin SOIC 208-mil
ZP
SF
=
=
8-pad WSON 6x5mm
16-pin SOIC 300-mil
=
8-pad WSON 6x5mm
I
=
Industrial (-40°C to +85°C)
G
= Green Package (Lead-free, RoHS Compliant, Halogen-free (TBBA), Antimony-Oxide-free Sb2O3)
Notes:
1a. Standard bulk shipments are in Tube (shape E). Please specify alternate packing method, such as Tape and Reel
(shape T) or Tray (shape S), when placing orders.
1b. The “W” prefix is not included on the part marking.
2. Only the 2nd letter is used for the part marking, package type ZP is not used for the part marking.
Publication Release Date: October 7, 2009
- 43 -
Preliminary -- Revision C
W25X32BV
13.1 Valid Part Numbers and Top Side Marking
The following table provides the valid part numbers for the W25X32BV SpiFlash Memories. Please
contact Winbond for specific availability by density and package type. Winbond SpiFlash memories
use an 12-digit Product Number for ordering. However, due to limited space, the Top Side Marking on
all packages use an abbreviated 10-digit number.
PACKAGE TYPE
DENSITY
32M-bit
32M-bit
PRODUCT NUMBER
W25X32BVSSIG
W25X32BVSFIG
TOP SIDE MARKING
25X32BVSIG
SS
SOIC-8 208mil
SF
25X32BVFIG
SOIC-16 300mil
ZP(1)
32M-bit
32M-bit
W25X32BVZPIG
W25X32BVZEIG
25X32BVIG
25X32BVIG
WSON-8 6x5mm
ZE(1)(2)
WSON-8 8x6mm
Notes:
1. For WSON packages, the package type ZP and ZE is not used in the top side marking.
2. Package type ZE (WSON-8 8x6mm) is a special order package, please contact Winbond for ordering
information.
- 44 -
W25X32BV
14. REVISION HISTORY
VERSION
DATE
PAGE
DESCRIPTION
New create preliminary.
A
04/01/09
All
Corrected Top Side Markings
Remove PDIP 300-MIL Package
Added WSON-8 8x6-mm Package as Special Order
Update Package Diagrams
B
C
08/07/09
10/07/09
4, 5, 7, 38~44
Table of Contents Error Correction.
Preliminary Designation
The “Preliminary” designation on a Winbond datasheet indicates that the product is not fully
characterized. The specifications are subject to change and are not guaranteed. Winbond or an
authorized sales representative should be consulted for current information before using this product.
Trademarks
Winbond and SpiFlash are trademarks of Winbond Electronics Corporation.
All other marks are the property of their respective owner.
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components in
systems or equipment intended for surgical implantation, atomic energy control instruments, airplane
or spaceship instruments, transportation instruments, traffic signal instruments, combustion control
instruments, or for other applications intended to support or sustain life. Further more, Winbond
products are not intended for applications wherein failure of Winbond products could result or lead to a
situation wherein personal injury, death or severe property or environmental damage could occur.
Winbond customers using or selling these products for use in such applications do so at their own risk
and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
Information in this document is provided solely in connection with Winbond products. Winbond
reserves the right to make changes, corrections, modifications or improvements to this document and
the products and services described herein at any time, without notice.
Publication Release Date: October 7, 2009
- 45 -
Preliminary -- Revision C
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