Overview

Description

The HM-6551/883 is a 256 x 4 static CMOS RAM fabricated using self-aligned silicon gate technology. Synchronous circuit design techniques are employed to achieve high performance and low power operation. On chip latches are provided for address and data outputs allowing efficient interfacing with microprocessor systems. The data output buffers can be forced to a high impedance state for use in expanded memory arrays. The HM-6551/883 is a fully static RAM and may be maintained in any state for an indefinite period of time. Data retention supply voltage and supply current are guaranteed over temperature.

Features

  • This Circuit is Processed in Accordance to MIL-STD-883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1.
  • Low Power Standby 50µW Max
  • Low Power Operation 20mW/MHz Max
  • Fast Access Time 220ns Max
  • Data Retention at 2.0V Min
  • TTL Compatible Input/Output
  • High Output Drive - 1 TTL Load
  • Internal Latched Chip Select
  • High Noise Immunity
  • On-Chip Address Register
  • Latched Outputs
  • Three-State Output

Comparison

Applications

Documentation

Type Title Date
Datasheet PDF 720 KB
Brochure PDF 4.85 MB
Product Change Notice PDF 323 KB
Product Advisory PDF 282 KB
Product Change Notice PDF 174 KB
Product Change Notice PDF 151 KB
Application Note PDF 338 KB
Application Note PDF 224 KB
8 items

Design & Development

Models