SN74AC138WBQBRQ1

Signal Switches, Multiplexers, Decoders Overview

The SN74AC138WBQBRQ1 is an automotive-grade 3-to-8 decoder/demultiplexer from Texas Instruments. It operates within a supply voltage range of 1.5V to 6V and supports an operating temperature range of -40°C to +125°C. The device features balanced CMOS push-pull outputs capable of continuous ±24mA drive at 5V, with short bursts supporting up to ±75mA. It includes three address inputs (A0, A1, A2) and three enable inputs (G0, G1, G2). Propagation delay reaches a maximum of 10.2ns at 5V with a 50pF load. The component is housed in a 16-pin WQFN package.

Signal Switches, Multiplexers, Decoders Feature Summary

• AEC-Q100 qualified for automotive applications with specified temperature grades and ESD classifications
• Available in a wettable flank QFN package to facilitate automatic optical inspection
• Inputs accept voltages up to 6V while the device operates on a wide 1.5V to 6V supply range

Signal Switches, Multiplexers, Decoders Applications

• Memory device selection with shared data bus
• Reducing required number of outputs for chip select applications
• Routing data

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix matches the required package type and lead time requirements. Confirm that the device meets the necessary AEC-Q100 qualification standards for your specific automotive application environment. Ensure input voltage levels remain within the absolute maximum ratings to prevent damage. Check thermal management requirements against the datasheet specifications for the selected package.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when an automotive-qualified 3-to-8 decoder is required for systems operating between 1.5V and 6V. Consider the wettable flank package if automated optical inspection reliability is a priority. Evaluate the propagation delay and output drive capabilities against system timing and load requirements. Ensure the design accommodates the recommended bypass capacitor placement and trace geometry guidelines provided in the datasheet.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74AC138-Q1 family of automotive decoders. It shares functional characteristics with other members of the series but differs in packaging options such as TSSOP or WQFN variants. The 'WBQB' suffix indicates the specific 16-pin WQFN package configuration. Other family members may offer different pin counts or electrical characteristics suitable for varying system constraints.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AC138PWRQ1