HM628128A

Features:

• High speed
   - Fast access time: 55/70/85/100 ns (max)
• Low power
   - Active: 75 mW (typ)
   - Standby: 10 W (typ)
• 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
   2 chip selection for battery back up


Pinout




Specifications

Parameter	Symbol	Value	Unit
Supply voltage relative to VSS	VCC	0.5 to +7.0	V
Voltage on any pin relative to VSS*1	VT	0.5 *2 to VCC + 0.3*3	V
Power dissipation	PT	1.0	W
Operating temperature	Topr	0 to +70
Storage temperature	Tstg	55 to +125
Storage temperature under bias	Tbias	10 to +85

Description

The Hitachi HM628128A is a CMOS static RAM organized 128 kword ´ 8 bit.HM628128A realizes higher density, higher performance and low power consumption by employing 0.8 m Hi-CMOS process technology.

HM628128A offers low power standby power dissipation; therefore, it is suitable for battery back-up systems. The device, packaged in a 525-mil SOP (460-mil body SOP) or a 600-mil plastic DIP, or a 8 ´ 20 mm TSOP with thickness of 1.2 mm, is available for high density mounting. TSOP package is suitable for cards, and reverse type TSOP is also provided.