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Description

The AT93C56A/66A provides 2048/4096 bits of serial electrically-erasable programmable read-only memory (EEPROM). The EEPROM is organized as 128/256 words of 16 bits each when the ORG pin is connected to VCC and 256/512 words of 8 bits each when it is tied to ground. The device is optimized for use in many automotive applications where low-power and low-voltage operations are essential. The AT93C56A/66A is available in space-saving 8-lead JEDEC SOIC and 8-lead TSSOP packages.

Features

? Medium-voltage and Standard-voltage Operation

– 2.7 (VCC = 2.7V to 5.5V)

? Automotive Temperature Range –40°C to 125°C

? User-selectable Internal Organization

– 2K: 256 x 8 or 128 x 16

– 4K: 512 x 8 or 256 x 16

? Three-wire Serial Interface

? Sequential Read Operation

? 2 MHz Clock Rate

? Self-timed Write Cycle (10 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