CD74HC137PWE4

Signal Switches, Multiplexers, Decoders Overview

The CD74HC137PWE4 is a high-speed CMOS logic device functioning as a 3-to-8 line decoder and demultiplexer with address latches. Manufactured by Texas Instruments, it operates on a single power supply ranging from 2V to 6V. The component provides output currents of 5.2mA for both high and low states. It is housed in a 16-TSSOP package with a width of 4.40mm. The device supports an operating temperature range from -55°C to 125°C and is RoHS compliant.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates address latches to maintain decoded outputs independently of input changes
• Provides active-low decoded outputs suitable for direct interfacing with memory or I/O ports
• Supports wide voltage operation within the 2V to 6V single-supply range

Signal Switches, Multiplexers, Decoders Applications

• Memory address decoding in embedded systems
• I/O port expansion in microcontroller applications
• Data routing in digital signal processing circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'E4' indicates lead-free composition consistent with RoHS standards. Confirm the 16-TSSOP package dimensions match the design footprint requirements. Ensure the supplier source aligns with Texas Instruments authorized distribution channels to guarantee authenticity and traceability for industrial-grade components.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when latched address decoding is required to prevent output glitches during input transitions. Compare against the non-latched CD74HC138 if latch functionality is unnecessary. Verify that the 5.2mA drive current meets the load requirements of the connected circuitry within the specified 2V to 6V supply range.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Texas Instruments 74HC series of high-speed CMOS logic devices. It shares functional similarities with the CD74HC137 but includes the 'E4' suffix denoting environmental compliance. It is distinct from the CD74HC237, which features different latch configurations and control inputs.

Signal Switches, Multiplexers, Decoders Replacement Considerations

• CD74HC137PWRE4
• CD74HC137PWRG4

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the address latches in this device?

The address latches hold the selected output state stable even if the address inputs change, preventing unintended output switching during data updates.

Are the outputs inverted?

Yes, the CD74HC137 provides active-low decoded outputs, meaning the selected output line goes low while others remain high.