This document describes the features and characteristics of the CAT93C56/57 series 2K-bit serial EEPROM memory devices produced by Catalyst Semiconductor. The product features high-speed operation of 1MHz, low-power CMOS technology, 1.8 to 5.5 volt operation, selectable x8 or x16 memory organization, self-timed write cycle with auto-clear, software write protection, sequential read, power-up inadvertent write protection, 1,000,000 program/erase cycles endurance, and 100-year data retention. It is suitable for commercial, industrial, and automotive temperature ranges. The product is RoHS-compliant.
The CAT93C56/57 are 2‑Kbit Microwire Serial EEPROM devices from Catalyst Semiconductor. They can be configured as 8‑bit or 16‑bit registers (ORG pin) and are offered in 8‑pin DIP, SOIC, TSSOP and 8‑pad TDFN packages. Operating voltage ranges from 1.8 V to 5.5 V and the devices support a maximum clock frequency of 1 MHz.
These EEPROMs provide 1 Mcycle endurance, 100‑year data retention, selectable x8/x16 organization, self‑timed write cycles, and multiple write‑protect features. They are available in industrial (‑40 °C to 85 °C), automotive (‑40 °C to 105 °C) and extended (‑40 °C to 125 °C) temperature grades, all RoHS‑compliant.
| Memory size | 2 Kbit |
|---|---|
| Operating voltage | 1.8 V to 5.5 V |
| Maximum clock frequency | 1 MHz |
| Program/erase cycles | 1,000,000 cycles |
| Data retention | 100 years |
| Package types | 8‑pin DIP, SOIC, TSSOP, 8‑pad TDFN |
The device supports a maximum clock frequency of 1 MHz.
The ORG pin selects x8 or x16 organization; connecting ORG to VCC selects x16, to GND selects x8.