DM9322J/883

Overview

The DM9322J/883 is a quad 2-line to 1-line data selector/multiplexer manufactured by National Semiconductor. It features four independent multiplexers within a single package, providing full on-chip data selection capability through integrated inverters and drivers for the output gates. The device operates with a separate strobe input for control. It is designed for military-grade performance, supporting a supply voltage range of 4.5V to 5.5V and an operating temperature range of -55°C to 125°C. The component is housed in a 16-CDIP package.

Feature Summary

• Contains four independent 2-to-1 data selectors/multiplexers
• Includes integrated inverters and drivers for output gates
• Features a separate strobe input for functional control

Applications

• Multiplexing dual-data buses
• Generating logic functions of two variables where one variable is common
• Sourcing programmable counters

Procurement Notes

Verify the specific suffix J/883 indicates military screening standards when sourcing. Confirm the 16-CDIP package type matches your board layout requirements. Ensure compatibility with TTL logic levels given the 4.5V to 5.5V supply specification. Check manufacturer documentation for exact pinout configurations relative to standard 9322 variants.

Selection Notes

Select this component when multiple independent 2-to-1 multiplexing functions are required in a compact form factor. The wide temperature range makes it suitable for harsh environments. Consider the CDIP package for through-hole mounting needs. Verify that the strobe control logic aligns with system design requirements for data gating.

Part Context

This part belongs to the DM9322 series of quad multiplexers. The /883 suffix typically denotes compliance with MIL-STD-883 standards for microelectronics. It serves as a fundamental building block for digital signal routing and logic function generation in complex electronic systems requiring reliable data selection capabilities.

Replacement Considerations

Consult official datasheets for direct pin-compatible substitutes from National Semiconductor or other manufacturers producing equivalent quad 2-to-1 multiplexers in 16-pin packages. Verify electrical characteristics and temperature ranges match application requirements before substitution.