CD74HCT221EG4

Multivibrators Overview

The CD74HCT221EG4 is a dual monostable multivibrator manufactured by Texas Instruments, belonging to the 74HCT logic series. It features Schmitt-trigger inputs for noise immunity and includes an integrated reset function. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 16-SOIC package. It is designed for high-speed CMOS applications with a typical propagation delay of 18 ns.

Multivibrators Feature Summary

• Dual monostable multivibrator configuration with independent circuits
• Schmitt-trigger inputs provide enhanced noise filtering capabilities
• Integrated reset functionality allows external control of pulse duration
• High-speed CMOS technology ensures fast switching performance

Multivibrators Applications

• Timing pulse generation in digital systems
• Debouncing mechanical switches
• Frequency division circuits
• Pulse width modulation signal conditioning

Multivibrators Procurement Notes

Verify the specific EG4 suffix against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering information matches the exact package variant required for your PCB layout. Cross-reference the component code with official Texas Instruments documentation to avoid substitution errors during procurement.

Multivibrators Selection Notes

Select this component when a dual monostable solution with Schmitt-trigger inputs is required for HCT logic level interfacing. Verify that the 4.5 V to 5.5 V operating voltage aligns with the system power supply. Confirm that the 16-SOIC package dimensions fit the available board space and thermal requirements.

Multivibrators Part Context

This part belongs to the Texas Instruments CD74HCT family of high-speed CMOS logic devices. It is functionally compatible with other 74HCT monostable multivibrators but offers specific integration of two circuits in a single package. The HCT series is optimized for operation with standard TTL logic levels while maintaining CMOS low power consumption characteristics.

Multivibrators Replacement Considerations

CD74HC221M96 is listed as a manufacturer-recommended alternative. Verify electrical specifications and package compatibility before substitution.