MICROCHIP AT93C56B-MAHM-E

The AT93C56B/AT93C66B provides 2,048/4,096 bits of Serial Electrically Erasable and 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 AT93C56B/AT93C66B is available in space-saving 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, 8-pad XDFN and 8-ball VFBGA packages. All packages operate from 1.7V to 5.5V. The AT93C56B/AT93C66B is enabled through the Chip Select (CS) pin and accessed via a three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Serial Data Clock (SK). Upon receiving a READ instruction at DI, the address is decoded, and the data is clocked out serially on the DO pin. 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.

• Low-Voltage Operation: – VCC = 1.7V to 5.5V
• User-Selectable Internal Organization: – 2K: 256x8 or 128x16 4K: 512x8 or 256x16
• Industrial Temperature Range: -40℃ to +85℃
• Three-Wire Serial Interface Sequential Read Operation
• 2 MHz Clock Rate (5V)
• Self-Timed Write Cycle within 5 ms Maximum
• High Reliability: – Endurance: 1,000,000 write cycles – Data retention: 100 years
• Green Package Options (Lead-free/Halide-free/RoHS compliant)
• Die Sale Options: Wafer Form