AT25DF321-S3U Atmel, AT25DF321-S3U Datasheet - Page 19

• Manufacturer Part Number: AT25DF321-S3U
• Description: IC FLASH 32MBIT 70MHZ 16SOIC
• Manufacturer: Atmel

Specifications of AT25DF321-S3U

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 32M (16384 pages x 256 Bytes)
• Speed: 70MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3669B–DFLASH–6/09
The tables below detail the various protection and locking states of the device.
Table 9-4.
Note:
Table 9-5.
WP
0
0
1
1
(Don't Care)
WP
1. “n” represents a sector number
X
SPRL
0
1
0
1
Software Protection Register States
Hardware and Software Locking
Hardware
Software
Locking
Locked
Locked
Sector Protection Register
SPRL Change Allowed
Can be modified from 0 to 1
Locked
Can be modified from 0 to 1
Can be modified from 1 to 0
n
0
1
(1)
Sector Protection Registers
Unlocked and modifiable using the
Protect and Unprotect Sector
commands. Global Protect and
Unprotect can also be performed.
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and
Unprotect cannot be performed.
Unlocked and modifiable using the
Protect and Unprotect Sector
commands. Global Protect and
Unprotect can also be performed.
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and
Unprotect cannot be performed.
Unprotected
Protected
Sector
AT25DF321
n
(1)
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