Product Summary

The UPD4891281G5-ARAM-DOL is a high-speed field buffer equipped with a memory of 256K words × 8bit (262, 224 ×8bit configuration. The high-speed and the low power consumption are realized in CMOS dynamic circuit. The UPD4891281G5-ARAM-DOL consists of FIFO (First In First Out) configuration, and the write/read operations are possible asynchronously and simultaneously.

Parametrics

UPD4891281G5-ARAM-DOL maximum ratings: (1)Operational Power Supply: –1.0 to +7.0 V; (2)Pin Voltage:–1.0 to VDD +0.5 (7.0 V or less) V; (3)Output Current: ±20 mA; (4)Operating Ambient Temperature: –20 to +70 ℃; (5)Storage Temperature:–55 to +125 ℃.

Features

UPD4891281G5-ARAM-DOL features: (1)256K words × 8 bit FIFO configuration; (2)Write/read operations are possible asynchronously and simultaneously; (3)Reset is possible apart from write/read address (real time reset); (4)Self refresh function incorporated; (5)Output enable; (6)All I/O TTL compatible.

Diagrams

UPD4891281G5-ARAM-DOL block diagram