SN74LV138ATRGYR

Overview

The SN74LV138ATRGYR is a low-voltage CMOS decoder/demultiplexer manufactured by Texas Instruments. It features three address inputs and eight active-low outputs, enabling the selection of one specific output line based on binary input combinations. The device operates within a supply voltage range of 2 V to 5.5 V, ensuring compatibility with various logic families. It utilizes a 16-pin WQFN package designed for surface-mount applications. Key electrical specifications include a propagation delay of 13 ns at 5 V and an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides decoding functionality for converting three binary address lines into one of eight mutually exclusive active-low outputs.
• Incorporates three enable inputs (two active-low and one active-high) to control device operation and prevent unintended signal activation.
• Supports wide supply voltage operation ranging from 2 V to 5.5 V, facilitating integration in diverse low-power electronic systems.

Applications

• Address decoding for memory and I/O port selection in embedded systems
• Demultiplexing data streams in communication interfaces
• Control logic for peripheral device selection in industrial automation

Procurement Notes

Verify the exact suffix 'TRGYR' against the manufacturer's current datasheet to confirm the specific WQFN-16 package variant and tape-and-reel quantity. Ensure the requested component matches the intended voltage and temperature ratings for your application environment before finalizing orders.

Selection Notes

Select this component when a low-voltage, high-speed decoder is required for space-constrained designs. The WQFN package offers a compact footprint suitable for dense PCB layouts. Consider the 2 V to 5.5 V operating range if the system requires flexibility between different logic voltage levels.

Part Context

This part belongs to the SN74LV138A family of decoders and demultiplexers. It is designed for low-voltage applications, offering performance comparable to standard 5-V CMOS devices while consuming significantly less power. The LV series is widely used in portable and battery-operated equipment due to its efficient power characteristics.

Replacement Considerations

Check for SN74LV138APWR or SN74LV138ADGVR as potential pin-compatible alternatives in different packages. Verify that any substitute maintains the same WQFN-16 form factor if board space is critical.