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Hitachi Power Semiconductor Device Electronic Components Datasheet

HM624256A Datasheet

262144-word x 4-bit High Speed CMOS Static RAM

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HM624256A Series
262144-word × 4-bit High Speed CMOS Static RAM
Rev. 0.0
Dec. 1, 1995
Description
The Hitachi HM624256A is a high speed 1M Static RAM organized as 262,144-word × 4-bit. It realizes
high speed access time (20/25/35 ns) and low power consumption, employing CMOS process technology
and high speed circuit designing technology. It is most advantageous for the field where high speed and
high density memory is required, such as the cache memory for main frame or 32-bit MPU. The
HM624256A, packaged in a 400-mil plastic SOJ is available for high density mounting.
Features
Single 5 V supply and high density 28-pin package (DIP and SOJ)
High speed
Access time: 20/25/35 ns (max)
Low power dissipation
Active mode: 350 mW (typ)
Standby mode: 100 µW (typ)
Completely static memory
No clock or timing strobe required
Equal access and cycle time
Directly TTL compatible
All inputs and outputs


Hitachi Power Semiconductor Device Electronic Components Datasheet

HM624256A Datasheet

262144-word x 4-bit High Speed CMOS Static RAM

No Preview Available !

HM624256A Series
Ordering Information
Type No.
Access Time Package
HM624256AP-20
HM624256AP-25
HM624256AP-35
20 ns
25 ns
35 ns
400 mil 28-pin plastic DIP (DP-28C)
HM624256ALP-20 20 ns
HM624256ALP-25 25 ns
HM624256ALP-35 35 ns
HM624256AJP-20
HM624256AJP-25
HM624256AJP-35
20 ns
25 ns
35 ns
400 mil 28-pin plastic SOJ (CP-28D)
HM624256ALJP-20 20 ns
HM624256ALJP-25 25 ns
HM624256ALJP-35 35 ns
2


Part Number HM624256A
Description 262144-word x 4-bit High Speed CMOS Static RAM
Maker Hitachi Semiconductor
Total Page 12 Pages
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