Atmel AT24C64A
The AT24C32A/64A provides 32,768/65,536 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 4096/8192 words of 8 bits each. The device’s cascadable feature allows up to 8 devices to share a common twowire bus. The device is optimized for use in many automotive applications where low power and low voltage operation are essential.| Part No. | AT24C64A |
|---|---|
| Datasheet | AT24C64A Download |
| Manufacturer |  Atmel |
| Description | Two-wire Serial EEPROM |
| Buy | Stock & Price |
FEATURES
● Standard-Voltage Operation – 2.7 (VCC = 2.7V to 5.5V)● Internally Organized 4096 x 8 (32K), 8192 x 8 (64K)
● Automotive Temperature Range –40C to +125C
● Two-wire Serial Interface
● Schmitt Trigger, Filtered Inputs for Noise Suppression
● Bidirectional Data Transfer Protocol
● 400 kHz Clock Rate
● Write Protect Pin for Hardware Data Protection
● 32-byte Page Write Mode (Partial Page Writes Allowed)
● Self-timed Write Cycle (5 ms Max)
● High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years
● Lead-free/Halogen-free Devices Available
● 8-lead JEDEC SOIC and 8-lead TSSOP Packages
DESCRIPTION
The AT24C32A/64A is available in space saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a 2-wire serial interface and is available in a 2.7V (2.7V to 5.5V) version. Table 1. Pin Configuration Pin Name Function A0 – A2 Address Inputs SDA Serial Data SCL Serial Clock Input WP Write Protect 8-lead SOIC A0 1 A1 2 A2 3 GND 4 8 VCC 7 WP 6 SCL 5 SDA 8-lead TSSOP A0 1 A1 2 A2 3 GND 4 8 VCC 7 WP 6 SCL 5 SDA Two-wire Automotive Serial EEPROM 32K (4096 x 8) 64K (8192 x 8) AT24C32A(1) AT24C64A 1.
