HITCHI HM62256B Series 256k SRAM (32-kword × 8-bit) Data Sheet

The Hitachi HM62256B Series is a CMOS static RAM organized 32,768-word × 8-bit. It realizes higher performance and low power consumption by employing 0.8 µm Hi-CMOS process technology. The device, packaged in 8 × 14 mm TSOP, 8 × 13.4 mm TSOP with thickness of 1.2 mm, 450 mil SOP (foot print pitch width), 600 mil plastic DIP, or 300 mil plastic DIP, is available for high density mounting. It offers low power standby power dissipation; therefore, it is suitable for battery backup systems.


HITCHI HM62256B Series 256k SRAM (32-kword × 8-bit) Data Sheet  - cover page
Brand
HITCHI
Category
Memory
Document type
Datasheet
Language
English
Pages
20
File format
PDF
File size
145 KB
Published
05 June, 2012
Updated
30 September, 2023
MD5 checksum
D201028CF02C42D5E87E062F09B0EC7E

About this manual

The Hitachi HM62256B Series is a 32-kword x 8-bit CMOS static RAM designed for high-density mounting applications. It utilizes 0.8 µm Hi-CMOS process technology to achieve higher performance with low power consumption, making it suitable for battery backup systems due to its low standby power dissipation.

What's inside

  • Description
  • Features
  • Ordering Information
  • Pin Arrangement
  • Block Diagram
  • Operation Table
  • Absolute Maximum Ratings
  • DC Operating Conditions
  • AC Characteristics

Specifications

Memory Organization32,768-word x 8-bit
Supply Voltage5.0 V + 10%
Access Time (Max)85 ns
Active Power Dissipation25 mW (typ)
Standby Power Dissipation1.0 µW (typ)
Operating Temperature Range0 to +70 °C

Frequently asked questions

What is the memory capacity of the HM62256B?

The device is organized as 32,768-word x 8-bit.

Is the HM62256B series compatible with TTL logic?

Yes, all inputs and outputs are directly TTL compatible.

Does this RAM require a clock signal to operate?

No, it is completely static memory with no clock or timing strobe required.

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