W25X10A, W25X20A, W25X40A, W25X80A
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 A7–A0
A15–A8 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
D8h
20h
A23–A16
A23–A16
A23–A16
A15–A8 A7–A0
A15–A8 A7–A0
A15–A8 A7–A0
(D7–D0)
(Next byte)
Block Erase
(64KB)
Sector Erase
(4KB)
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)
(M7-M0)
(ID7-ID0)
JEDEC ID
9Fh
Manufacturer Memory Capacity
Type
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.
Publication Release Date: February 27, 2008
- 15 -
Revision B
WINBOND [ WINBOND ]
