SN74AHCT123AN

Overview

The SN74AHCT123AN is a dual retriggerable monostable multivibrator manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum power supply current of 4 µA. The device features propagation delays of 24.1 ns and 14 ns, with output currents rated at 8 mA for both high and low states. It is housed in a 16-pin SOIC package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Compatible with standard CMOS logic outputs
• Supports edge triggering from active-high or active-low gated logic inputs

Applications

• Pulse width generation
• Timing delay circuits
• Frequency division

Procurement Notes

Verify the specific suffix 'AN' against manufacturer documentation, as it typically denotes a PDIP package which may differ from the common SOIC variant. Confirm RoHS compliance status and ensure the selected component matches the required pinout and thermal specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a dual-channel monostable solution is required for 5V CMOS systems. Ensure the design accommodates the 4.5 V to 5.5 V supply constraint. Consider the package type availability and verify that the retriggerable feature aligns with the signal timing requirements of the specific circuit design.

Part Context

This part belongs to the SN74AHCT123A series of dual retriggerable monostable multivibrators. It is designed for use in digital logic applications requiring precise timing control. The AHCT series ensures compatibility with TTL-driven interfaces while maintaining CMOS performance characteristics.

Replacement Considerations

Direct substitutes include SN74AHC123AN and SN74AHCT123ADWR. Verify package compatibility and electrical parameter alignment before substitution.