SNJ54LS123J

Overview

The SNJ54LS123J is a dual monostable multivibrator from the LS series, housed in a 16-pin ceramic dual in-line package (CDIP). It features low-power Schottky logic and operates within a temperature range of -55°C to 125°C. The device includes two independent circuits with complementary outputs and an overriding clear input.

Feature Summary

• Retriggerable operation allows pulse width extension via gated inputs
• Overriding clear input terminates output pulses immediately
• DC triggered from active-high or active-low gated logic inputs

Applications

• Military and defense electronic systems
• Space-based applications requiring radiation tolerance
• Industrial control timing circuits

Procurement Notes

Verify that the component matches the specific military qualification requirements for your application. Confirm the CDIP package integrity and lead finish specifications against your assembly standards. Ensure the part marking corresponds to the authorized source documentation.

Selection Notes

Select this component when extended temperature operation and high reliability are required. The LS series offers lower power consumption compared to standard TTL. Verify compatibility with existing timing resistor and capacitor networks for desired pulse widths.

Part Context

This part belongs to the SN54/74LS123 family of retrackerable monostable multivibrators. It is distinct from commercial variants by its ceramic packaging and qualified status for harsh environments. The 'J' suffix denotes the ceramic DIP package type.

Replacement Considerations

SN54LS123J

FAQ

What is the function of the overriding clear input?

The overriding clear input terminates the output pulse immediately, regardless of the current timing state.

How is the basic pulse width programmed?

The basic pulse width is programmed by selecting external resistance and capacitance values connected to the timing pins.