SN74LS122NS

Overview

The SN74LS122NS is a single retriggerable monostable multivibrator from the Texas Instruments SN74LS series. It operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 56 ns. The device provides a low-level output current of 8 mA and a high-level output current of -400 uA. It is housed in a 14-pin DIP package and supports an operating temperature range from 0°C to +70°C.

Feature Summary

• Retriggerable monostable operation allows pulse width extension upon receiving subsequent trigger signals during the timing interval.
• Includes dedicated clear input for immediate reset of the output state independent of trigger inputs.
• Compatible with standard TTL logic families, ensuring interface compatibility with existing digital systems.

Applications

• Pulse generation and timing circuits
• Debouncing mechanical switches
• Frequency division

Procurement Notes

Verify the specific suffix 'NS' against the manufacturer's official documentation to confirm the package type and pinout configuration. Ensure that the ordering information matches the exact component specifications required for the design. Cross-reference the datasheet for any updates regarding environmental compliance or manufacturing changes.

Selection Notes

Select this component when a single-channel retriggerable monostable function is required within the LS logic family. Consider the 14-pin DIP package for through-hole assembly requirements. Evaluate the 56 ns propagation delay and 8 mA output drive capability against the system's timing and load constraints.

Part Context

This part belongs to the SN74LS122 family of retriggerable monostable multivibrators manufactured by Texas Instruments. The LS series denotes Low-power Schottky logic, offering a balance between power consumption and speed. The device is designed for applications requiring precise timing control with the ability to extend pulse widths via retriggering.

Replacement Considerations

SN74LS122DR