04-02-2013, 11:30 AM
HM66205L Series
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INTRODUCTION
The HM66205L is a high density 4-Mbit static
RAM module which consists of 4 pieces
HM628128LT products (TSOP type 1M static
RAM) and a HD74ACT138FP equivalent product
(SOP type CMOS decoder logic).
An outline of the HM66205L is the standard 600-
mil width 32-pin dual-in-line package. Its pin
arrangement is completely compatible with 4-Mbit
monolithic static RAM.
The HM66205L offers the features of low power
and high speed by using high speed CMOS
devices. And, the HM66205L makes high density
mounting possible without surface mount
technology.
These features make the HM66205L ideally suited
for high density compacted memory systems.
Features
• High density 32-pin DIP
– Mounting 4 pcs. of 1M static RAM (TSOP;
HM628128LT) and CMOS decoder logic
(SOP; HD74ACT138FP equivalent)
• Pin compatible with 4M monolithic static RAM
• High speed
– Fast access time: 85 ns/100 ns/120 ns (max)
• Equal access and cycle time
• Completely static RAM
– No clock or timing strobe required
• Low power standby and low power operation
– Standby: 40 μW (typ)
– Operation: 80 mW (typ)