SNJ54L123J

Overview

The SNJ54L123J is a dual monostable multivibrator from the L Series, housed in a 16-pin ceramic dual in-line package (CDIP). It features DC triggering from active-high or active-low gated logic inputs and is retriggerable. The device includes an overriding clear to terminate output pulses and is compensated for VCC and temperature variations. It operates within a military-grade temperature range of -55 °C to 125 °C.

Feature Summary

• Dual monostable multivibrator configuration with independent channels
• Retriggerable operation via gated low-level-active or high-level-active inputs
• Overriding clear input functionality to terminate output pulses
• Hermetically sealed ceramic construction for harsh environment reliability

Applications

• Military aerospace timing circuits
• Industrial control pulse generation
• Telecommunications signal processing

Procurement Notes

Verify the manufacturer origin carefully, as the SNJ prefix typically denotes Texas Instruments but the source material attributes the LS123 family to Motorola/NXP. Confirm the specific 'L' series designation against official TI datasheets to ensure compatibility with required performance specifications and environmental ratings before procurement.

Selection Notes

Select this component for applications requiring hermetic sealing and wide temperature tolerance. Ensure the design accommodates the external resistance and capacitance values needed for pulse width programming, as the basic pulse width is determined by these external components rather than internal resistors.

Part Context

This part belongs to the SNJ54xx series, which represents military-grade, hermetically sealed ceramic packages. It is functionally related to the SN54LS123 but utilizes Low-power Schottky (LS) technology characteristics as indicated by the source data context for similar parts.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.