CD74HCT221MT

Multivibrators Overview

The CD74HCT221MT is a dual monostable multivibrator integrated circuit manufactured by Texas Instruments. It belongs to the 74HCT logic series, utilizing silicon gate CMOS technology for low power consumption while maintaining speeds comparable to LSTTL. The device features two independent circuits within a single package and includes Schmitt trigger inputs for noise immunity. It operates on a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 18 ns. The component is housed in a 16-SOIC surface-mount package with an operating temperature range from -55°C to 125°C.

Multivibrators Feature Summary

• Dual monostable multivibrator configuration with two independent circuits
• Schmitt trigger inputs provide enhanced noise immunity
• CMOS technology ensures low power consumption with LSTTL-compatible speeds

Multivibrators Applications

• Timing pulse generation
• Frequency division
• Pulse width modulation

Multivibrators Procurement Notes

Verify the exact suffix against official manufacturer documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering code matches the specific tape-and-reel or cut-tape variant required for your assembly process. Cross-reference the RoHS status and moisture sensitivity level with current environmental compliance standards before procurement.

Multivibrators Selection Notes

Select this component when a dual-channel timing solution is required with high noise immunity due to Schmitt triggers. The HCT series is appropriate for systems interfacing directly with TTL logic levels. Consider the SOIC package size and wide temperature range if space constraints or harsh environmental conditions are primary design factors.

Multivibrators Part Context

This part is part of the broader 74HCT family of logic devices, designed to bridge the gap between standard CMOS performance and TTL compatibility. The 221 series specifically addresses applications requiring precise timing control using external resistors and capacitors. It serves as a fundamental building block for digital timing circuits in industrial and consumer electronics.

Multivibrators Replacement Considerations

CD74HCT221M96