描述 Description

The Hitachi HM62W16256B Series is 4-Mbit static RAM organized 262,144-word × 16-bit. HM62W16256B Series has realized higher density, higher performance and low power consumption by employing Hi-CMOS process technology. It offers low power standby power dissipation; therefore, it is suitable for battery backup systems. It is packaged in standard 44-pin plastic TSOPII.

特性 Features

? Single 3.3 V supply: 3.3 V ± 0.3 V

? Fast access time: 55 ns/70 ns (max)

? Power dissipation:

- Active: 9.9 mW (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

? Battery backup operation.

- 2 chip selection for battery backup