AT93C66A Datasheet | Atmel

Features - Low-voltage and Standard-voltage Operation - 2.7 (VCC = 2.7V to 5.5V) - 1.8 (VCC = 1.8V to 5.5V) - 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 (5V) - Self-timed Write Cycle (10 ms Max) - High Reliability - Endurance: 1 Million Write Cycles - Data Retention: 100 Years - Automotive Devices Available - 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP (MLP 2x3), 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP and 8-ball d BGA2 Packages Three-wire Serial EEPROM 2K (256 x 8 or 128 x 16) 4K (512 x 8 or 256 x 16) 2. Description The AT93C56A/66A provides 2048/4096 bits of serial electrically erasable programmable read-only memory (EEPROM) 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 the ORG pin is tied to...