Part CAT28C257
Description 256 kb CMOS Parallel EEPROM
Category EEPROM
Manufacturer onsemi
Size 129.84 KB
onsemi

CAT28C257 Overview

Description

The CAT28C257 is a fast, low power, 5 V-only CMOS Parallel EEPROM organized as 32K x 8-bits. It requires a simple interface for in-system programming.

Key Features

  • Fast Read Access Times: 120/150 ns
  • Low Power CMOS Dissipation: – Active: 25 mA Max. – Standby: 150 mA Max
  • Simple Write Operation: – On-chip Address and Data Latches – Self-timed Write Cycle with Auto-clear
  • Fast Write Cycle Time
  • CMOS and TTL Compatible I/O
  • Automatic Page Write Operation
  • 1 to 128 Bytes in 5 ms
  • Page Load Timer
  • End of Write Detection
  • DATA Polling