Rainbow Electronics AT25DQ321 User Manual
Page 8

8
AT25DQ321 [DATASHEET]
8718D–DFLASH–12/2012
Table 6-1.
Command Listing
Command
Opcode
Clock
Frequency
Address
Bytes
Dummy
Bytes
Data
Bytes
Read Commands
Read Array
1Bh
0001 1011
Up to 100MHz
3
2
1+
0Bh
0000 1011
Up to 85MHz
3
1
1+
03h
0000 0011
Up to 50MHz
3
0
1+
Dual-Output Read Array
3Bh
0011 1011
Up to 85MHz
3
1
1+
Quad-Output Read Array
6Bh
0110 1011
Up to 66MHz
3
1
1+
Program and Erase Commands
Block Erase (4KB)
20h
0010 0000
Up to 100MHz
3
0
0
Block Erase (32KB)
52h
0101 0010
Up to 100MHz
3
0
0
Block Erase (64KB)
D8h
1101 1000
Up to 100MHz
3
0
0
Chip Erase
60h
0110 0000
Up to 100MHz
0
0
0
C7h
1100 0111
Up to 100MHz
0
0
0
Byte/Page Program (1 to 256 bytes)
02h
0000 0010
Up to 100MHz
3
0
1+
Dual-Input Byte/Page Program (1 to 256 bytes)
A2h
1010 0010
Up to 100MHz
3
0
1+
Quad-Input Byte/Page Program (1 to 256 bytes)
32h
0011 0010
Up to 100MHz
3
0
1+
Program/Erase Suspend
B0h
1011 0000
Up to 100MHz
0
0
0
Program/Erase Resume
D0h
1101 0000
Up to 100MHz
0
0
0
Protection Commands
Write Enable
06h
0000 0110
Up to 100MHz
0
0
0
Write Disable
04h
0000 0100
Up to 100MHz
0
0
0
Protect Sector
36h
0011 0110
Up to 100MHz
3
0
0
Unprotect Sector
39h
0011 1001
Up to 100MHz
3
0
0
Global Protect/Unprotect
Use Write Status Register Byte 1 Command
Read Sector Protection Registers
3Ch
0011 1100
Up to 100MHz
3
0
1+
Security Commands
Sector Lockdown
33h
0011 0011
Up to 100MHz
3
0
1
Freeze Sector Lockdown State
34h
0011 0100
Up to 100MHz
3
0
1
Read Sector Lockdown Registers
35h
0011 0101
Up to 100MHz
3
0
1+
Program OTP Security Register
9Bh
1001 1011
Up to 100MHz
3
0
1+
Read OTP Security Register
77h
0111 0111
Up to 100MHz
3
2
1+
Status and Configuration Register Commands
Read Status Register
05h
0000 0101
Up to 100MHz
0
0
1+
Write Status Register Byte 1
01h
0000 0001
Up to 100MHz
0
0
1
Write Status Register Byte 2
31h
0011 0001
Up to 100MHz
0
0
1
Read Configuration Register
3Fh
0011 1111
Up to 100MHz
0
0
1+
Write Configuration Register
3Eh
0011 1110
Up to 100MHz
0
0
1
Miscellaneous Commands
Reset
F0h
1111 0000
Up to 100MHz
0
0
1
Read Manufacturer and Device ID
9Fh
1001 1111
Up to 85MHz
0
0
1 to 4
Deep Power-Down
B9h
1011 1001
Up to 100MHz
0
0
0
Resume from Deep Power-Down
ABh
1010 1011
Up to 100MHz
0
0
0