CD74HC221NSR

Multivibrators Overview

The CD74HC221NSR is a high-speed CMOS dual monostable multivibrator manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features Schmitt-trigger inputs for noise immunity. The device provides two independent circuits in a 16-pin SOIC package, with a maximum propagation delay of 210 ns at 2 V and a minimum pulse width of 12 ns. It supports output currents of ±5.2 mA and functions across an industrial temperature range of -55 °C to +125 °C.

Multivibrators Feature Summary

• Dual monostable multivibrator configuration with integrated reset functionality
• Schmitt-trigger inputs provide enhanced noise immunity
• High-speed CMOS technology ensures low power consumption

Multivibrators Applications

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

Multivibrators Procurement Notes

Verify the specific suffix 'SR' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the required operating voltage and temperature ranges before procurement. Cross-reference the part number with current availability status to avoid obsolete components.

Multivibrators Selection Notes

Select this component when a dual-channel monostable solution with Schmitt-trigger inputs is required. The HC series offers speed comparable to LS logic but with lower power consumption. Verify that the 16-pin SOIC package fits the board layout constraints and that the 2 V to 6 V supply range matches the system design.

Multivibrators Part Context

This part belongs to the Texas Instruments 74HC family of high-speed CMOS logic devices. The 74HC221 specifically addresses applications requiring precise timing pulses or signal conditioning. It is designed for use in general-purpose digital systems where reliable pulse generation and noise rejection are critical.

Multivibrators Replacement Considerations

CD74HC221M96E4 is a recommended manufacturer substitute. Verify pinout and electrical characteristics match before replacement.