TC74VHC595FK(EL,K)

Overview

The TC74VHC595FK(EL,K) is an 8-bit serial-in, serial/parallel-out shift register with a storage latch and 3-state outputs, manufactured by Toshiba Semiconductor and Storage. It belongs to the VHC logic series, utilizing CMOS technology for low-power operation. The device operates within a supply voltage range of 2.0 V to 5.5 V and features a propagation delay of 7.7 ns. It is housed in a TSSOP-16 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides serial-to-parallel data conversion with integrated storage latch functionality
• Features 3-state outputs for direct bus line driving capabilities
• Includes power-down protection on all inputs to prevent current leakage

Applications

• High-speed serial data expansion in digital systems
• Parallel output generation for display or indicator arrays
• Interface circuits requiring low-voltage CMOS logic compatibility

Procurement Notes

Verify the specific suffix designations (EL, K) against the manufacturer's official datasheet to confirm packaging type and tape specifications. Ensure that the ordering information matches the exact part number variant required for your Bill of Materials, as suffixes may indicate differences in reel quantity or moisture sensitivity levels rather than electrical performance changes.

Selection Notes

Select this component when a fast 8-bit shift register with 3-state outputs is required in a compact surface-mount package. The VHC series offers superior speed compared to standard HC logic while maintaining CMOS power efficiency. Consider the 2.0 V minimum supply voltage for compatibility with modern low-voltage microcontrollers and system architectures.

Part Context

This part is a member of the TC74VHC595 family, which represents Toshiba's high-speed CMOS logic line. It serves as a functional equivalent to industry-standard 74VHC595 devices. The FK suffix typically denotes the TSSOP-16 package configuration, distinguishing it from other housing options available within the same logical product family.

Replacement Considerations

Compatible substitutes include the TC74VHC595F and TC74VHC595FT-EL. These variants share identical electrical characteristics and pinouts but may differ in packaging format or reel specifications. Verify package dimensions and marking codes before substitution.