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HB56D136BW - High Density Dynamic RAM Module

Download the HB56D136BW datasheet PDF. This datasheet also covers the HB56D136 variant, as both devices belong to the same high density dynamic ram module family and are provided as variant models within a single manufacturer datasheet.

Description

The HB56D136 is a 1-M × 36-bit dynamic RAM module, mounted 8 pieces of 4 Mbit DRAM (HM514400CS/CLS) sealed in SOJ package and 2 pieces of 2 Mbit DRAM (HM512200BS/BLS) sealed in SOJ package.

An outline of the HB56D136 is 72-pin single in-line package.

Features

  • 72-pin.
  • Lead pitch: 1.27 mm.
  • Single 5 V (±5%) supply.
  • High speed.
  • Access time: 60 ns/70 ns/80 ns (max).
  • Low power dissipation.
  • Active mode: 5.46 W/4.94 W/4.41 W (max).
  • Standby mode: 105 mW (max) 5.25 mW (max) (L-version).
  • Fast page mode capability.
  • 1,024 refresh cycle: 16 ms 128 ms (L-version).
  • 3 variations of refresh.
  • RAS only refresh.
  • CAS-before-RAS refresh.
  • Hidden ref.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HB56D136-HitachiSemiconductor.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription

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HB56D136 Series 1,048,576-word × 36-bit High Density Dynamic RAM Module ADE-203-209A (Z) Rev 1.0 Sept. 20, 1994 Description The HB56D136 is a 1-M × 36-bit dynamic RAM module, mounted 8 pieces of 4 Mbit DRAM (HM514400CS/CLS) sealed in SOJ package and 2 pieces of 2 Mbit DRAM (HM512200BS/BLS) sealed in SOJ package. An outline of the HB56D136 is 72-pin single in-line package. Therefore, the HB56D136 makes high density mounting possible without surface mount technology. The HB56D136 provides common data inputs and outputs. Decoupling capacitors are mounted beneath each SOJ. Features • 72-pin — Lead pitch: 1.27 mm • Single 5 V (±5%) supply • High speed — Access time: 60 ns/70 ns/80 ns (max) • Low power dissipation — Active mode: 5.46 W/4.94 W/4.41 W (max) — Standby mode: 105 mW (max) 5.
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