HN58C256P-20 – HITACHI

Part Number:

HN58C256P-20

Manufacturer:

HITACHI

Date Code:

92+

RoHS:

MSL:

COO:

Description:

32Kx8 EEPROM, 200 ns, Parallel, CMOS, PDIP28 Package

Datasheet:

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Stock Quantity: 4

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Product Details:

Overview

The HITACHI HN58C256P-20 is a 32K x 8 bit CMOS EEPROM designed for non-volatile data storage in embedded systems. Its asynchronous parallel interface offers straightforward integration, with a maximum access time of 200 ns enabling timely data retrieval. A critical design consideration for this device is the trade-off between endurance (100,000 erase/write cycles) and data retention (10 years); engineers must carefully manage write operations to ensure long-term data integrity, especially in applications with frequent updates.

Key Features

Memory Density: 262,144 bits (32K x 8)
Access Time: 200 ns (maximum)
Endurance: 100,000 Write/Erase Cycles
Data Retention: 10 Years (minimum)
Supply Voltage: 4.5V to 5.5V
Package: 28-pin Plastic DIP (0.600 inch width)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

Configuration data storage in industrial control systems
Parameter logging in automotive ECUs
Firmware storage for legacy embedded processors
Calibration data retention in test and measurement equipment