AT93C56A-10SU-2,7 EEPROM, serial, 2Kb (128x16 / 256x8), 2.7-5V, SO-8

Three-wire Serial EEPROM

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 ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT93C56A/66A is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8- lead EIAJ SOIC, 8-lead Ultra Thin mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 packages. The AT93C56A/66A is enabled through the Chip Select pin (CS) and accessed via a three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a read instruction at DI, the address is decoded and the data is clocked out serially on the data output pin DO. The write cycle is completely self-timed and no separate erase cycle is required before write. The write cycle is only enabled when the part is in the Erase/Write Enable State. When CS is brought “high" following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part. The AT93C56A/66A is available in 2.7V to 5.5V and 1.8V to 5.5V versions.

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 TSSOP and 8-ball dBGA2 Packages