CD74HC147PWR

Signal Switches, Multiplexers, Decoders Overview

The CD74HC147PWR 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 TSSOP-16 surface-mount package. The device provides one circuit with nine inputs and four outputs, exhibiting a propagation delay of 32 ns. It supports a wide operating temperature range from -55 °C to +125 °C and delivers output currents of 5.2 mA for both high and low states.

Signal Switches, Multiplexers, Decoders Feature Summary

• Encodes ten input lines into a corresponding four-bit binary-coded decimal output using active-low logic.
• Implements priority encoding where the highest-order active input determines the output state.
• Utilizes silicon gate CMOS technology for compatibility with standard CMOS logic families.

Signal Switches, Multiplexers, Decoders Applications

• Keyboard encoding circuits
• Interrupt request prioritization systems
• Data acquisition multiplexing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'PWR' confirms the tape-and-reel packaging format distinct from tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering part number matches the exact package dimensions and pin configuration required for the target PCB layout design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a single priority encoder function is required within a broader logic system. The HC series offers broad voltage compatibility suitable for various digital interfaces. Verify that the 32 ns propagation delay meets the timing requirements of the specific application circuitry.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the CD74HC147 family of priority encoders. It serves as a functional equivalent to other industry-standard 10-to-4 line encoders. The part is designed for general-purpose digital logic applications requiring efficient binary conversion of multiple input signals.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The CD74HC147PW is listed as a parameter-equivalent alternative. Verify package differences between the reel (PWR) and tube (PW) formats before substitution.