描述 Description

The Hitachi HM62W8512B is a 4-Mbit static RAM organized 512-kword × 8-bit. It realizes higher density, higher performance and low power consumption by employing 0.35 μm Hi-CMOS process technology. The device, packaged in a 525-mil SOP (foot print pitch width) or 400-mil TSOP TYPE II is available for high density mounting. The HM62W8512B is suitable for battery backup system.

特性 Features

? Single 3.3 V supply: 3.3 V ± 0.3 V

? Access time: 55/70 ns (max)

? Power dissipation

- Active: 16.5 mW/MHz (typ)

- Standby: 3.3 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 LV-TTL compatible: All inputs and outputs

? Battery backup operation