MM54C221J/883

Multivibrators Overview

The MM54C221J/883 is a dual monostable multivibrator manufactured by Rochester Electronics, LLC. It utilizes CMOS technology and is housed in a ceramic Dual In-Line Package (CDIP) with 16 pins. The device is designed for military temperature ranges, operating from -55 °C to 125 °C. It features two independent circuits capable of generating precise timing pulses or serving as delay elements within digital logic systems.

Multivibrators Feature Summary

• Dual independent monostable multivibrator circuits integrated into a single package
• Military-grade reliability with ceramic packaging suitable for harsh environments
• CMOS technology providing low power consumption relative to TTL equivalents

Multivibrators Applications

• Timing pulse generation in military avionics systems
• Delay line applications requiring high-temperature stability
• Waveform shaping and conversion in ruggedized digital circuits

Multivibrators Procurement Notes

Verify the specific manufacturer source code on the component marking, as Rochester Electronics often distributes parts originally manufactured by National Semiconductor. Confirm that the CDIP-16 ceramic package matches the design-in requirements for thermal and mechanical stress. Ensure the MIL-STD-883 screening level meets the project's quality assurance standards before finalizing procurement.

Multivibrators Selection Notes

Select this component when a dual monostable configuration is required in a military environment. The CMOS input characteristics offer compatibility with standard logic families while maintaining lower power dissipation. The ceramic package provides superior hermeticity compared to plastic alternatives, making it suitable for applications where moisture resistance and long-term reliability are critical constraints.

Multivibrators Part Context

This part belongs to the MM54C221 family of dual monostable multivibrators. The 'MM' prefix typically denotes military specifications, while '54' indicates the extended temperature range. The '/883' suffix signifies compliance with MIL-STD-883 testing standards. Rochester Electronics supports legacy components, ensuring supply continuity for designs originally specifying National Semiconductor parts.