HM62256B是一個8位32KB容量的靜態(tài)存儲器SRAM芯片。
Description
The Hitachi HM62256B is a CMOS static RAM organized 32-kword · 8-bit. It realizes higher
performance and low power consumption by employing 0.8 m m Hi-CMOS process technology. The
device, packaged in 8 · 14 mm TSOP, 8 · 13.4 mm TSOP with thickness of 1.2 mm, 450-mil SOP (foot
print pitch width), 600-mil plastic DIP, or 300-mil plastic DIP, is available for high density mounting. It
offers low power standby power dissipation; therefore, it is suitable for battery back-up systems.
Features
* High speed
Fast access time: 45/55/70/85 ns (max)
* Low power
Standby: 1.0 m W (typ)
Operation: 25 mW (typ) (f = 1 MHz)
* Single 5 V supply
* 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
* Capability of battery back up operation
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