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Description

The Hitachi HM628512CI is a 4-Mbit static RAM organized 512-kword ×8-bit. HM628512CI Series has realized higher density, higher performance and low power consumption by employing CMOS procss technology (6-transistor memory cell). The HM628512CI Series offers low power standby power dissipation; therefore, it is suitable for battery backup systems. It has packaged in 32-pin SOP, 32-pin TSOP II and 32-pin DIP.

Features

? Single 5 V supply

? Access time: 55/70 ns (max)

? Power dissipation

? Active: 10 mW/MHz (typ)

? Standby: 4 μW (typ)

? Completely static memory. No clock or timing strobe required

? Equal access and cycle times

? Common data input and output: Three state output

? Directly TTL compatible: All inputs and outputs

? Battery backup operation

? Operating temperature: –40 to +85?C