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HM5216405 - SDRAM

Download the HM5216405 datasheet PDF. This datasheet also covers the HM5216805 variant, as both devices belong to the same sdram family and are provided as variant models within a single manufacturer datasheet.

General Description

All inputs and outputs are referred to the rising edge of the clock input.

The HM5216805 Series, HM5216405 Series are offered in 2 banks for improved performance.

Key Features

  • 3.3V Power supply.
  • Clock frequency: 100 MHz/83 MHz/66 MHz (max).
  • LVTTL interface.
  • Single pulsed RAS.
  • 2 Banks can operates simultaneously and independently.
  • Burst read/write operation and burst read/single write operation capability.
  • Programmable burst length: 1/2/4/8/full page.
  • 2 variations of burst sequence  Sequential (BL = 1/2/4/8/full page)  Interleave (BL = 1/2/4/8).
  • Programmable CAS latency: 1/2/3.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HM5216805-Hitachi.pdf) that lists specifications for multiple related part numbers.

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.

View original datasheet text
HM5216805 Series, HM5216405 Series 1,048,576-word × 8-bit × 2-bank Synchronous Dynamic RAM 2,097,152-word × 4-bit × 2-bank Synchronous Dynamic RAM ADE-203-304B (Z) Rev. 2.0 Dec. 10, 1996 Description All inputs and outputs are referred to the rising edge of the clock input. The HM5216805 Series, HM5216405 Series are offered in 2 banks for improved performance. Features • 3.