The AT25080/160/320/640 series is AT25 series 8-bit serial electrically erasable programmable read only memory (EEPROM) with 8192/16384/32768/65536 bits, 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 is required.
This document describes the Atmel AT25080/160/320/640 family of Serial Electrically Erasable Programmable Read Only Memory (EEPROM) devices. These components are organized as 8K, 16K, 32K, or 64K bits and utilize a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). The devices support SPI Modes 0 and 3 and operate at clock rates up to 2.1 MHz.
| Memory Capacity | 8K/16K/32K/64K bits (8192/16384/32768/65536) |
|---|---|
| Clock Rate | 2.1 MHz |
| Endurance | 1 Million Write Cycles |
| Data Retention | 100 Years |
| Supply Voltage (Low) | 1.8V to 3.6V |
| Package Types | 8-Pin PDIP, JEDEC SOIC, TSSOP |
The device supports SPI Modes 0 (0,0) and 3 (1,1).
No, all programming cycles are completely self-timed and no separate ERASE cycle is required.
The device features a Self-Timed Write Cycle with a typical duration of 5 ms.