TC74VHC221AFK(EL,K

Overview

The TC74VHC221AFK(EL,K is a single-frequency multivibrator integrated circuit manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 2.0 V to 5.5 V. The device is housed in a VSSOP16 package with dimensions of 4.25 mm by 3 mm. This component functions as a precision oscillator for generating stable clock signals or timing pulses in digital logic applications.

Feature Summary

• Provides precise single-frequency oscillation capabilities
• Compatible with standard CMOS logic voltage levels
• Designed for compact surface-mount integration

Applications

• Clock signal generation for digital systems
• Timing pulse creation in control circuits
• Oscillator modules in embedded devices

Procurement Notes

Verify the exact part number suffix against official Toshiba documentation to ensure correct packaging and tape specifications. Confirm that the VSSOP16 footprint matches the target PCB design. Check for RoHS compliance status if required by specific manufacturing standards. Ensure storage conditions meet moisture sensitivity level requirements before assembly.

Selection Notes

Select this component when a dedicated single-frequency oscillator is required instead of using discrete RC networks or gate-based oscillators. Consider the VSSOP16 package size constraints and the 2.0 V to 5.5 V operating range. Evaluate thermal performance and stability requirements against the internal oscillator characteristics defined in the datasheet.

Part Context

This part belongs to the TC74VHC series of high-speed CMOS logic devices from Toshiba. The series includes various logic gates, buffers, and specialized functions like oscillators. The TC74VHC221AFK specifically addresses timing needs within this broader logic family, offering a compact solution for frequency generation tasks.

Replacement Considerations

Consult Toshiba's official replacement guide for direct equivalents. Verify pin compatibility and electrical parameters before substituting with other single-frequency oscillators. Ensure any alternative maintains the same voltage range and package dimensions.