AT28HC256E-12FM/883 - Microchip Technology

Manufacturer Part Number

AT28HC256E-12FM/883

Manufacturer

Microchip Technology

Introduction

The AT28HC256E-12FM/883 is a 256Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) chip manufactured by Microchip Technology.

Product Features and Performance

256Kbit of non-volatile EEPROM memory

Parallel memory interface

Access time of 120ns

5V to 5.5V operating voltage

Wide operating temperature range of -55°C to 125°C

Fast write cycle time of 10ms (word/page)

High endurance of up to 1 million write/erase cycles

Reliable data retention of over 100 years

Product Advantages

High storage capacity in a compact 28-pin package

Wide temperature range for use in harsh environments

Fast write speeds for efficient data updates

Long data retention for reliable long-term storage

High endurance for frequent write/erase cycles

Key Technical Parameters

Memory Size: 256Kbit

Memory Organization: 32K x 8

Memory Type: Non-Volatile EEPROM

Access Time: 120ns

Write Cycle Time: 10ms (word/page)

Operating Voltage: 4.5V to 5.5V

Operating Temperature: -55°C to 125°C

Quality and Safety Features

RoHS3 compliant

Ceramic bottom-brazed 28-FlatPack package

Designed and tested to military standard MIL-PRF-38535 (883) requirements

Compatibility

The AT28HC256E-12FM/883 is a form, fit, and function compatible replacement for the legacy AT28HC256 EEPROM chip.

Application Areas

Industrial control systems

Automotive electronics

Military and aerospace equipment

Telecom infrastructure

Medical devices

Embedded systems

Product Lifecycle

The AT28HC256E-12FM/883 is an active product and is not nearing discontinuation. Replacement or upgrade options are available from Microchip Technology.

Key Reasons to Choose This Product

High storage capacity in a compact package

Wide operating temperature range for harsh environments

Fast write speeds for efficient data updates

Long data retention and high endurance for reliable performance

Military-grade quality and reliability

Compatibility with legacy AT28HC256 designs