SN74AHC157QPWRQ1

Signal Switches, Multiplexers, Decoders Overview

The SN74AHC157QPWRQ1 is an automotive-grade quadruple 2-line to 1-line data selector/multiplexer designed for operation between 2V and 5.5V VCC. It features a common strobe input that forces all outputs low when high, enabling synchronous data routing from two sources to four outputs based on the address select pin. The device provides true data output with balanced CMOS push-pull drivers. It includes wettable flank options for improved solder joint inspection via automatic optical inspection.

Signal Switches, Multiplexers, Decoders Feature Summary

• AEC-Q100 qualified for automotive applications with specified temperature grades and ESD classifications
• Balanced CMOS push-pull outputs capable of sourcing and sinking similar currents
• Wettable flank package option available to enhance side wetting and facilitate AOI inspection

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 package variant (TSSOP or WQFN) against the ordering suffix in the official datasheet. Confirm AEC-Q100 qualification status and temperature grade requirements match the target automotive application environment. Ensure supply voltage ranges align with system design constraints before procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for designs requiring multiple independent 2-to-1 multiplexing channels within a single integrated circuit. Consider the operating voltage range and propagation delay specifications relative to system timing requirements. Evaluate thermal performance and load capacitance limits to ensure stable operation under expected electrical conditions.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74AHC157-Q1 family of automotive logic devices. It functions as a high-speed silicon gate CMOS multiplexer. The Q1 suffix indicates automotive qualification, while the PW suffix denotes the TSSOP-16 package type used in this specific configuration.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AHC157PW

Signal Switches, Multiplexers, Decoders FAQ

How does the strobe input affect the outputs?

When the strobe input is high, all outputs are forced low regardless of other inputs. When low, the selected channel data is routed to the outputs.

What is the purpose of wettable flanks?

Wettable flanks improve side wetting after soldering, providing additional surface area for solder adhesion and allowing easier inspection via automatic optical inspection.