AT25DF021 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT25DF021 Datasheet PDF : 41 Pages
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Table 6-1. Command Listing
Command
Read Commands
Read Array
Program and Erase Commands
Block Erase (4 Kbytes)
Block Erase (32 Kbytes)
Block Erase (64 Kbytes)
Chip Erase
Byte/Page Program (1 to 256 Bytes)
Protection Commands
Write Enable
Write Disable
Protect Sector
Unprotect Sector
Global Protect/Unprotect
Read Sector Protection Registers
Security Commands
Program OTP Security Register
Read OTP Security Register
Status Register Commands
Read Status Register
Write Status Register
Miscellaneous Commands
Read Manufacturer and Device ID
Deep Power-Down
Resume from Deep Power-Down
AT25DF021
Opcode
Clock
Frequency
Address Dummy
Bytes
Bytes
Data
Bytes
0Bh 0000 1011 Up to 66 MHz
3
03h 0000 0011 Up to 33 MHz
3
1
1+
0
1+
20h 0010 0000 Up to 66 MHz
3
52h 0101 0010 Up to 66 MHz
3
D8h 1101 1000 Up to 66 MHz
3
60h 0110 0000 Up to 66 MHz
0
C7h 1100 0111 Up to 66 MHz
0
02h 0000 0010 Up to 66 MHz
3
0
0
0
0
0
0
0
0
0
0
0
1+
06h 0000 0110 Up to 66 MHz
0
0
0
04h 0000 0100 Up to 66 MHz
0
0
0
36h 0011 0110 Up to 66 MHz
3
0
0
39h 0011 1001 Up to 66 MHz
3
0
0
Use Write Status Register Command
3Ch 0011 1100 Up to 66 MHz
3
0
1+
9Bh 1001 1011 Up to 66 MHz
3
77h 0111 0111 Up to 66 MHz
3
0
1+
2
1+
05h 0000 0101 Up to 66 MHz
0
01h 0000 0001 Up to 66 MHz
0
0
1+
0
1
9Fh 1001 1111 Up to 66 MHz
0
B9h 1011 1001 Up to 66 MHz
0
ABh 1010 1011 Up to 66 MHz
0
0
1 to 4
0
0
0
0
7
3677D–DFLASH–04/09
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