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AT25DF321A Datasheet(PDF) 8 Page - ATMEL Corporation

Part # AT25DF321A
Description  32-Megabit 2.7-volt Minimum SPI Serial Flash Memory
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT25DF321A Datasheet(HTML) 8 Page - ATMEL Corporation

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8
3686C–DFLASH–12/08
AT25DF321A [Preliminary]
Table 6-1.
Command Listing
Command
Opcode
Clock
Frequency
Address
Bytes
Dummy
Bytes
Data
Bytes
Read Commands
Read Array
1Bh
0001 1011
Up to 100 MHz
3
2
1+
0Bh
0000 1011
Up to 85 MHz
3
1
1+
03h
0000 0011
Up to 50 MHz
3
0
1+
Dual-Output Read Array
3Bh
0011 1011
Up to 85 MHz
3
1
1+
Program and Erase Commands
Block Erase (4 KBytes)
20h
0010 0000
Up to 100 MHz
3
0
0
Block Erase (32 KBytes)
52h
0101 0010
Up to 100 MHz
3
0
0
Block Erase (64 KBytes)
D8h
1101 1000
Up to 100 MHz
3
0
0
Chip Erase
60h
0110 0000
Up to 100 MHz
0
0
0
C7h
1100 0111
Up to 100 MHz
0
0
0
Byte/Page Program (1 to 256 Bytes)
02h
0000 0010
Up to 100 MHz
3
0
1+
Dual-Input Byte/Page Program (1 to 256 Bytes)
A2h
1010 0010
Up to 100 MHz
3
0
1+
Program/Erase Suspend
B0h
1011 0000
Up to 100 MHz
0
0
0
Program/Erase Resume
D0h
1101 0000
Up to 100 MHz
0
0
0
Protection Commands
Write Enable
06h
0000 0110
Up to 100 MHz
0
0
0
Write Disable
04h
0000 0100
Up to 100 MHz
0
0
0
Protect Sector
36h
0011 0110
Up to 100 MHz
3
0
0
Unprotect Sector
39h
0011 1001
Up to 100 MHz
3
0
0
Global Protect/Unprotect
Use Write Status Register Byte 1 Command
Read Sector Protection Registers
3Ch
0011 1100
Up to 100 MHz
3
0
1+
Security Commands
Sector Lockdown
33h
0011 0011
Up to 100 MHz
3
0
1
Freeze Sector Lockdown State
34h
0011 0100
Up to 100 MHz
3
0
1
Read Sector Lockdown Registers
35h
0011 0101
Up to 100 MHz
3
0
1+
Program OTP Security Register
9Bh
1001 1011
Up to 100 MHz
3
0
1+
Read OTP Security Register
77h
0111 0111
Up to 100 MHz
3
2
1+
Status Register Commands
Read Status Register
05h
0000 0101
Up to 100 MHz
0
0
1+
Write Status Register Byte 1
01h
0000 0001
Up to 100 MHz
0
0
1
Write Status Register Byte 2
31h
0011 0001
Up to 100 MHz
0
0
1
Miscellaneous Commands
Reset
F0h
1111 0000
Up to 100 MHz
0
0
1
Read Manufacturer and Device ID
9Fh
1001 1111
Up to 85 MHz
0
0
1 to 4
Deep Power-Down
B9h
1011 1001
Up to 100 MHz
0
0
0
Resume from Deep Power-Down
ABh
1010 1011
Up to 100 MHz
0
0
0


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