Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet Describes Mode 0 Operation
• Low-voltage and Standard-voltage Operation
•
•
•
•
•
•
•
•
•
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
20 MHz Clock Rate (5V)
32-byte Page Mode
Block Write Protection
– Protect 1/4, 1/2, or Entire Array
Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software
Data Protection
Self-timed Write Cycle (5 ms max)
High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
Available in Automotive
8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead MAP, 8-lead Ultra Thin
Mini-MAP (MLP 2x3) and 8-lead TSSOP Packages
Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers
Description
The AT25080A/160A/320A/640A provides 8192/16384/32768/65536 bits of serial
electrically-erasable programmable read-only memory (EEPROM) organized as
1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation
are essential. The AT25080A/160A/320A/640A is available in space-saving 8-lead
PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8lead TSSOP and 8-Lead Ultra Leadframe Land Grid Array (ULLGA) packages.
The AT25080A/160A/320A/640A is enabled through the Chip Select pin (CS) and
accessed via a three-wire interface consisting of Serial Data Input (SI), Serial Data
Output (SO), and Serial Clock (SCK). All programming cycles are completely selftimed, and no separate erase cycle is required before write.
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
32K (4096 x 8)
64K (8192 x 8)
AT25080A
AT25160A
AT25320A
AT25640A
Not
Recommended
for New Design
3347M–SEEPR–06/07
