SN74LV221ADR

Overview

The SN74LV221ADR is a dual monostable multivibrator manufactured by Texas Instruments, belonging to the LV logic series. It operates within a supply voltage range of 2 V to 5.5 V and supports surface-mount installation in an SOIC-14 package. The device features Schmitt-trigger inputs for noise immunity and provides two independent circuits per unit. It functions as a one-shot pulse generator with a propagation delay of 13.2 ns. The component is rated for operation between -40 °C and +85 °C, ensuring reliability across standard industrial temperature ranges.

Feature Summary

• Dual independent monostable multivillator configuration
• Schmitt-trigger inputs for enhanced noise rejection
• Wide operating voltage compatibility from 2 V to 5.5 V

Applications

• Pulse generation and timing control
• Debouncing mechanical switches
• Delay line applications

Procurement Notes

Verify the specific suffix 'ADR' against official datasheets to confirm the SOIC-14 package type and tape-and-reel packaging format. Ensure the ordering part number matches the exact manufacturer designation to avoid discrepancies in pinout or electrical characteristics during procurement.

Selection Notes

Select this component when a dual-channel monostable solution is required with Schmitt-trigger input capabilities. The wide voltage range allows direct interfacing with various logic families. Verify that the SOIC-14 footprint aligns with the PCB layout requirements before finalizing the design.

Part Context

This part belongs to the SN74LV221A family of monostable multivibrators. It is designed for general-purpose timing applications requiring precise pulse width control. The LV series ensures low power consumption while maintaining high-speed performance suitable for modern digital systems.

Replacement Considerations

Check for SN74LV221ADRG4 or SN74LV221ADRE4 as potential equivalents. Confirm package compatibility and electrical specifications match the original design requirements before substitution.