The Microchip Technology Inc. 93XX76A/B/C devices are 8K bit, low-voltage, serial Electrically Erasable PROMs (EEPROM).
The 93AA76, 93LC76, and 93C76 devices are 8‑Kbit Microwire‑compatible serial EEPROMs offered in 8‑bit (A) and 16‑bit (B) organizations, with an optional ORG pin for word‑size selection on the C versions. They feature low‑power CMOS technology, a Program Enable (PE) pin for write protection, self‑timed erase/write cycles, and a READY/BUSY status output.
The datasheet details electrical characteristics (VCC 1.8‑5.5 V, up to 5 V for automotive), temperature ranges (‑40 °C to +85 °C industrial, ‑40 °C to +125 °C automotive), pin assignments, timing diagrams, instruction sets for read/write/erase operations, and protection features such as EWEN/EWDS commands. Package options include PDIP, SOIC, SOT‑23, TSSOP, and MSOP.
| Memory size | 8 Kbit |
|---|---|
| Organization options | 8‑bit (A) and 16‑bit (B) |
| VCC operating range (Industrial) | 1.8‑5.5 V |
| VCC operating range (Automotive) | 2.5‑5.5 V |
| Temperature range (Industrial) | -40 °C to +85 °C |
| Temperature range (Automotive) | -40 °C to +125 °C |
| Write/Erase endurance | 1,000,000 cycles |
| Data retention | >200 years |
| Program Enable (PE) pin | Write‑protects entire array |
| ORG pin | Selects word size for C versions |
The 93AA76 devices operate from 1.8 V to 5.5 V.
The devices are rated for up to 1,000,000 write/erase cycles.
The Program Enable (PE) pin disables writing to the entire memory array when asserted.
Automotive versions operate from –40 °C to +125 °C.