AT26DF161A
Table 6-1.
Command Listing
Command
Opcode
Address Bytes
Dummy Bytes
Data Bytes
Read Commands
Read Array
Read Array (Low Frequency)
0Bh
03h
0000 1011
0000 0011
3
3
1
0
1+
1+
Program and Erase Commands
3, 0
Block Erase (4 Kbytes)
Block Erase (32 Kbytes)
Block Erase (64 Kbytes)
Chip Erase
Byte/Page Program (1 to 256 Bytes)
Sequential Program Mode
20h
52h
D8h
60h
C7h
02h
ADh
AFh
0010 0000
0101 0010
1101 1000
0110 0000
1100 0111
0000 0010
1010 1101
1010 1111
3
3
3
0
0
3
(1)
3, 0 (1)
0
0
0
0
0
0
0
0
0
0
0
0
0
1+
1
1
Protection Commands
Write Enable
Write Disable
Protect Sector
Unprotect Sector
06h
04h
36h
39h
0000 0110
0000 0100
0011 0110
0011 1001
0
0
3
3
0
0
0
0
0
0
0
0
Global Protect/Unprotect
Use Write Status Register command
Read Sector Protection Registers
3Ch
0011 1100
3
0
1+
Status Register Commands
Read Status Register
Write Status Register
05h
01h
0000 0101
0000 0001
0
0
0
0
1+
1
Miscellaneous Commands
Read Manufacturer and Device ID
Deep Power-down
Resume from Deep Power-down
9Fh
B9h
ABh
1001 1111
1011 1001
1010 1011
0
0
0
0
0
0
1 to 4
0
0
Note:
1. Three address bytes are only required for the first operation to designate the address to start programming at. Afterwards,
the internal address counter automatically increments, so subsequent Sequential Program Mode operations only require
clocking in of the opcode and the data byte until the Sequential Program Mode has been exited.
7
3640D–DFLASH–8/09
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