CD74HC147E

Signal Switches, Multiplexers, Decoders Overview

The CD74HC147E is a high-speed CMOS 10-line to 4-line priority encoder manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features a propagation delay of 32 ns. The device supports a wide operating temperature range from -55 °C to +125 °C. It is housed in a 16-pin PDIP package with through-hole mounting style. The component provides one circuit configuration for encoding ten inputs into four binary outputs.

Signal Switches, Multiplexers, Decoders Feature Summary

• Implements 10-to-4 line priority encoding using high-speed silicon gate CMOS technology
• Provides direct pin compatibility with low-power Schottky TTL (LSTTL) logic standards
• Supports operation across an extended industrial temperature range for robust performance

Signal Switches, Multiplexers, Decoders Applications

• Digital systems requiring conversion of decimal inputs to binary codes
• Keyboard encoding circuits in computing peripherals
• Industrial control interfaces utilizing LSTTL-compatible logic levels

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'E' confirms the 16-pin PDIP package variant rather than surface-mount options like PWR or PW. Confirm RoHS compliance status via the manufacturer's official documentation, as lead-free designations may vary by production batch. Ensure the ordering quantity matches the tube packaging standard associated with this through-hole package type.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a through-hole DIP package is required for prototyping or legacy board designs. Choose the HC series over HCT if system power supplies operate below 4.5 V or require wider voltage flexibility. Verify that input logic levels align with CMOS standards rather than TTL thresholds before finalizing the design.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Texas Instruments CD74HC147 family of priority encoders. The family includes variants such as the CD74HC147PWR and CD74HC147E, differing primarily in packaging and mounting technology. All variants share identical logical functionality and electrical characteristics defined by the 74HC logic series specifications.

Signal Switches, Multiplexers, Decoders Replacement Considerations

CD74HC147EG4 is a verified lead-free replacement variant within the same product family.