This document describes the features and characteristics of Microchip Technology Inc.'s 93XX56A/B/C devices, including low-power CMOS technology, selectable word size, self-timed erase/write cycles, data protection circuitry, sequential read function, etc.
The 93XX56A/B/C family provides 2 Kbit EEPROM devices in 8‑bit (A‑versions) and 16‑bit (B‑versions) organizations, with an optional ORG pin for word‑size selection on the C‑versions. They are built with low‑power CMOS technology and support industry‑standard 3‑wire Microwire interfaces, including READY/BUSY status monitoring.
The datasheet covers device selection, absolute maximum ratings, DC and AC electrical characteristics, functional description, pin configurations, timing diagrams for erase, write, and read operations, as well as packaging options and ordering information. Temperature ranges span -40 °C to +85 °C (industrial) and -40 °C to +125 °C (automotive).
| Memory size | 2 Kbit |
|---|---|
| Operating voltage range | 1.8 V – 5.5 V (depending on device) |
| Endurance | 1 000 000 write/erase cycles |
| Data retention | > 200 years |
The devices are rated for up to 1 000 000 write/erase cycles.
The ORG pin is used to select 8‑bit or 16‑bit organization on the C‑versions.
The standby current is specified as 5 µA.