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HM624256A - 262144-word x 4-bit High Speed CMOS Static RAM

General 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.

Key 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 HM624256A Series Ordering Information Type No. Access Time Package HM624256AP-20 HM624256AP-25 HM624256AP-35 20 ns 25.

📥 Download Datasheet

More Datasheets from Hitachi Semiconductor (now Renesas)

Part Number Description
HM624100H 4M High Speed SRAM (1-Mword x 4-bit)
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HM621400HC 4M High Speed SRAM (4-Mword x 1-bit)
HM6216255H 4M high Speed SRAM (256-kword x 16-bit)
HM6216255HC 4M High Speed SRAM (256-kword x 16-bit)
HM6216255HI 4M high Speed SRAM (256-kword x 16-bit)
HM621664HB 1M High Speed SRAM
HM62256A 32/768-word x 8-bit High Speed CMOS Static RAM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.