ADE-XXX-XXX
HM628128A Series
131,072-word
×
8-bit High Speed CMOS Static RAM
Rev. X
January 1995
The Hitachi HM628128A is a CMOS static RAM
organized 128 kword
×
8 bit. It realizes higher
density, higher performance and low power
consumption by employing 0.8 µm Hi-CMOS
process technology.
It 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.
Features
• High speed
— Fast access time: 55/70/85/100 ns (max)
• Low power
— Active: 75 mW (typ)
— Standby: 10 µW (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
HITACHI [ HITACHI SEMICONDUCTOR ]
