74AHC138S16-13

Signal Switches, Multiplexers, Decoders Overview

The 74AHC138S16-13 is a 3-to-8 line decoder and demultiplexer manufactured by Diodes Incorporated. It operates on a single power supply ranging from 2.0 V to 5.5 V. The device accepts three-bit binary weighted addresses on inputs A0, A1, and A2. When enabled, it produces one active low output while the remaining seven outputs remain high. It features two active LOW enable inputs (E1, E2) and one active HIGH enable input (E3). The component is housed in an SO-16 package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Accepts up to 5.5 V inputs despite lower operating voltages
• Provides Schmitt Trigger action at all inputs for noise immunity
• Offers multiple enable lines for parallel expansion of decoders
• Includes robust ESD protection exceeding standard machine and human body models

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Demultiplexing data streams
• Single line peripheral control
• Controlling peripheral lines via serial bit streams from microcontrollers

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the ordering suffix -13 corresponds to the SO-16 package with a standard tape and reel quantity of 2500 units. Confirm RoHS compliance and lead-free finish status as specified in the manufacturer documentation. Ensure the application environment remains within the recommended operating temperature range of -40°C to +125°C to maintain electrical characteristics.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a 3-to-8 decoding function is required with CMOS low power consumption. It is suitable for designs needing wide supply voltage flexibility between 2.0 V and 5.5 V. The inclusion of Schmitt Trigger inputs makes it appropriate for environments with noisy signals or slow input transition rates.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AHC series of advanced high-speed CMOS logic devices produced by Diodes Incorporated. It functions as a decoder/demultiplexer within the broader category of signal switching and logic integrated circuits. The S16 designation specifically identifies the surface-mount SO-16 physical package variant.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the 74AHC138T16-13, which utilizes a TSSOP-16 package instead of SO-16. Other compatible variants may exist within the same logic family provided they share identical pinouts and electrical specifications.

Signal Switches, Multiplexers, Decoders FAQ

How are the enable inputs configured to activate the device?

The device is enabled when inputs E1 and E2 are asserted low and input E3 is asserted high.

What happens to the outputs when the device is disabled?

When disabled, all outputs enter a high state.