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HM514270D - (HM514170D / HM514270D) Dynamic RAM

Download the HM514270D datasheet PDF. This datasheet also covers the HM514170D variant, as both devices belong to the same (hm514170d / hm514270d) dynamic ram family and are provided as variant models within a single manufacturer datasheet.

General Description

The Hitachi HM51(S)4170D, HM51(S)4270D Series are CMOS dynamic RAM organized as 262,144-word × 16-bit.

HM51(S)4170D, HM51(S)4270D Series have realized higher density, higher performance and various functions by employing 0.8 µm CMOS process technology and some new CMOS circuit design technologies.

Key Features

  • Single 5 V supply: 5 V ± 10%.
  • Access time: 60 ns/70 ns/80 ns (max).
  • Low power dissipation  Active mode: 825 mW/660 mW/578 mW (max) (HM51(S)4170D Series) 825 mW/770 mW/688 mW (max) (HM51(S)4270D Series)  Standby mode: 11 mW (max) 1.1 mW (max) (L-version).
  • Fast page mode capability.
  • Refresh cycles  1024 refresh cycles: 16 ms (HM51(S)4170D Series) 128 ms (L-version) (HM51(S)4170DL Series)  512 refresh cycles: 8 ms (HM51(S)4270D Series) 128 ms (L-ver.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HM514170D_HitachiSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
HM514258A CMOS DRAM Hitachi
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HM514800 500K x 8-Bit DRAM Hitachi
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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HM514260A 16-Bit Dynamic Random Access Memory
HM514260AL 16-Bit Dynamic Random Access Memory
HM514260C 262144-word x 16-bit Dynamic Random Access Memory
HM514170C Dynamic Random Access Memory
HM514170D (HM514170D / HM514270D) Dynamic 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.

View original datasheet text
www.DataSheet4U.com HM514170D, HM514270D Series HM51S4170D, HM51S4270D Series 262,144-word × 16-bit Dynamic RAM ADE-203-672 (Z) Preliminary Rev. 0.0 Oct. 18, 1996 Description The Hitachi HM51(S)4170D, HM51(S)4270D Series are CMOS dynamic RAM organized as 262,144-word × 16-bit. HM51(S)4170D, HM51(S)4270D Series have realized higher density, higher performance and various functions by employing 0.8 µm CMOS process technology and some new CMOS circuit design technologies. The HM51(S)4170D, HM51(S)4270D Series offer fast page mode as a high speed access mode. They have the package variations of standard 400-mil 40-pin plastic SOJ and standard 400-mil 44-pin plastic TSOPII. Internal refresh timer enables HM51S4170D, HM51S4270D Series self refresh operation.