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HM1-6561/883 from HARRIS,Intersil

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HM1-6561/883

Manufacturer: HARRIS, INTERSIL

256 x 4 CMOS RAM
Partnumber Manufacturer Quantity Availability
HM1-6561/883,HM16561883 HARRIS, INTERSIL 26 In Stock

Description and Introduction

256 x 4 CMOS RAM The part HM1-6561/883 is manufactured by INTERSIL. It is a radiation-hardened, high-reliability MIL-PRF-38534 Class K qualified device. The part is a 12-bit digital-to-analog converter (DAC) with a parallel input interface. Key specifications include:

- **Resolution**: 12 bits  
- **Supply Voltage**: ±15V  
- **Output Type**: Current or Voltage (external op-amp required for voltage output)  
- **Linearity Error**: ±1 LSB (max)  
- **Operating Temperature Range**: -55°C to +125°C  
- **Package**: Hermetic ceramic  
- **Qualification Level**: MIL-PRF-38534 Class K  

The part is designed for high-reliability aerospace, military, and space applications.

Application Scenarios & Design Considerations

256 x 4 CMOS RAM

Alternative Part Number

  • CY7C199-35PC --: 2K x 8 static RAM with similar organization and access speed, widely available and pin-compatible in many legacy designs.
  • IDT6116SA35TDB --: 2K x 8 CMOS SRAM in a comparable package, a common replacement for legacy 6116-type memory devices.
  • AS6C62256-55PCN --: Low-power CMOS SRAM from a vendor that specializes in legacy SRAM replacements, suitable when a larger 32K x 8 density is acceptable.
  • IDT6116SA55TDB --: 2K x 8 static RAM in a ceramic DIP with 883-style screening, functionally equivalent to the HM1-6561 and widely available as a second source.
  • CY7C128A-55DMB --: 2K x 8 asynchronous SRAM in a ceramic side-brazed DIP, pin-compatible with the HM1-6561 and rated for military temperature range.
  • MCM6164P55 --: 2K x 8 CMOS static RAM with similar access time and DIP pinout, usable as a drop-in replacement for the HM1-6561 in most legacy designs.

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