SN74LV221ANSR

Overview

The SN74LV221ANSR is a dual monostable multivibrator from Texas Instruments, housed in a 16-pin SOIC package. It features Schmitt-trigger inputs for noise immunity and operates within a voltage range of 2V to 3.6V. The device provides two independent circuits with pulse widths determined by external RC components. It supports high-speed operation with propagation delays as low as 13.2ns and includes an output enable pin for timing control.

Feature Summary

• Dual independent monostable multivibrator circuits
• Schmitt-trigger inputs for enhanced noise rejection
• External RC timing control for flexible pulse width adjustment
• Output enable functionality for precise timing synchronization

Applications

• Pulse generation and shaping
• Timing delay circuits
• Debouncing switches
• Frequency division

Procurement Notes

Verify the specific suffix 'ANSR' corresponds to the tape-and-reel packaging format required for automated assembly. Confirm that the operating temperature range meets your environmental specifications. Ensure compatibility with your system's logic voltage levels before integration.

Selection Notes

Select this component when dual independent timing channels are required in a compact surface-mount package. Consider the LV series for lower power consumption compared to standard TTL or CMOS alternatives. Verify that the external RC component values can achieve the desired pulse duration within the device's operational limits.

Part Context

This part belongs to the SN74LV family of low-voltage CMOS logic devices. It is designed for applications requiring reliable performance at supply voltages below 5V. The SOIC-16 package offers a balance between pin count and board space efficiency for consumer and industrial electronics.

Replacement Considerations

Check for direct equivalents such as the SN74LVC221A series for similar functionality with potentially different electrical characteristics. Verify pinout compatibility if substituting with other dual monostable multivibrators to avoid redesigning the PCB layout.