General Description

The A625308A is a low operating current 262,144-bit static random access memory organized as 32,768 words by 8 bits and operates on a voltage from 4.5V to 5.5V.

Inputs and three-state outputs are TTL compatible and allow for direct interfacing with common system bus structures.

Minimum standby power is drawn by this device when CE is at a high level, independent of the other input levels.

Data retention is guaranteed at a power supply voltage as low as 2.0V.

Features

■ Power Supply Range: 4.5V to 5.5V

■ Access times: 70 ns

A625308A-S series: Operating: 35mA (max.)

Standby: 10mA (max.)

A625308A-SU series: Operating: 35mA (max.)

Standby: 15mA (max.)

■ Extended operating temperature range: -40°C to 85°C for -SU series.

■ Full static operation, no clock or refreshing required

■ All inputs and outputs are directly TTL-compatible

■ Common I/O using three-state output

■ Data retention voltage: 2.0V (min.)

■ Available in 28-pin, DIP/SOP and TSOP