CD54HC123F3A

Description：HIGH SPEED CMOS LOGIC DUAL RETRI
Series：54HC
Mfr：Texas Instruments
Package：Tube

SKU:1fd1977e8b23 Category: Multivibrators Brand: Texas Instruments

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Product introduction

CD54HC123F3A is listed in the Multivibrators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is HIGH SPEED CMOS LOGIC DUAL RETRI. Review the specifications below when checking this part for your BOM.

Multivibrators specifications for CD54HC123F3A

Description：HIGH SPEED CMOS LOGIC DUAL RETRI
Series：54HC
Mfr：Texas Instruments
Package：Tube
Logic Type：Monostable
Independent Circuits：2
Schmitt Trigger Input：Yes
Propagation Delay：54 ns
Current - Output High, Low：5.2mA, 5.2mA
Voltage - Supply：2 V ~ 6 V
Operating Temperature：-55°C ~ 125°C
Mounting Type：Through Hole
Package / Case：16-CDIP (0.300", 7.62mm)
Supplier Device Package：16-CDIP
Grade：-
Qualification：-

Multivibrators datasheet and documents for CD54HC123F3A

CD54HC123F3A

Multivibrators Overview

The CD54HC123F3A is a dual retriggerable monostable multivibrator with resets, manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -55°C to 125°C. The device features Schmitt triggers on both A and B inputs, separate resets, and buffered Q and Q outputs. Timing is controlled by external resistor (Rx) and capacitor (Cx), allowing for a wide range of output pulse widths.

Multivibrators Feature Summary

Retriggerable operation allows extension of the output pulse width via subsequent trigger pulses on inputs A or B.
Overriding reset functionality terminates the output pulse immediately upon application of a LOW level on the Reset pin.
Integrated Schmitt triggers on both A and B inputs ensure precise triggering at specific voltage levels independent of input rise and fall times.
Supports triggering from either the leading edge (Input B) or trailing edge (Input A) of the input signal.

Multivibrators Applications

Pulse generation circuits requiring adjustable timing intervals
Debouncing switches or mechanical contacts
Timing delay applications in digital logic systems

Multivibrators Procurement Notes

Verify that the part number matches the exact military-grade specification CD54HC123F3A. Confirm the package type is 16-lead Ceramic Dual In-Line Package (CERDIP). Ensure the supplier provides documentation confirming compliance with the specified -55°C to 125°C operating temperature range and 2V to 6V supply voltage requirements.

Multivibrators Selection Notes

Select this component when high-speed CMOS logic is required for monostable multivibrator applications. It is suitable for designs needing retriggerable functionality and overriding reset capabilities. Consider the HC series for its wide voltage operation range and high noise immunity compared to standard TTL logic families.

Multivibrators Part Context

This component belongs to the CD54/74HC123 family of high-speed CMOS logic devices. It is functionally similar to the CD54HCT123F3A but differs in supply voltage compatibility, supporting a wider range of 2V to 6V compared to the HCT variant's 4.5V to 5.5V requirement. Both share the same CERDIP packaging and military temperature ratings.