MC74AC157ML1

Overview

The MC74AC157ML1 is a quad 2-input multiplexer from the onsemi 74AC logic series, housed in a 16-lead TSSOP package. It operates within a supply voltage range of 2 V to 6 V. The device features four independent data selectors that route inputs A or B to outputs Y based on a common select line and an active-low enable input. Propagation delay is specified at 8.5 ns at 3.3 V and 6.5 ns at 5 V. It supports surface-mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides four independent 2-to-1 data selection paths for routing digital signals
• Features high-speed CMOS performance with low static power consumption
• Includes an active-low output enable function to control data flow
• Compatible with standard CMOS logic levels across a wide voltage range

Applications

• Data routing in embedded systems
• Signal selection in industrial control circuits
• Address/data bus switching in computing hardware

Procurement Notes

Verify the specific suffix ML1 confirms the TSSOP-16 package variant rather than SOIC-16. Confirm RoHS compliance status directly with the manufacturer documentation. Ensure the order quantity aligns with the tube packaging format typically associated with this part number. Validate the operating temperature grade matches system requirements.

Selection Notes

Select this component when a quad multiplexer with AC-series speed is required in a compact surface-mount footprint. Compare propagation delays against system clock speeds to ensure timing margins are met. Verify that the 2V to 6V supply range covers all logic levels in the target design. Consider pin compatibility if replacing legacy HC or LS variants.

Part Context

This part belongs to the MC74AC157 family of quad multiplexers manufactured by onsemi. It shares functional compatibility with other 74AC series devices but offers distinct package options. The AC series provides higher speed performance compared to standard HC series counterparts while maintaining CMOS power efficiency characteristics suitable for modern digital applications.

Replacement Considerations

MC74AC157DG serves as a direct functional substitute using an SOIC-16 package instead of TSSOP-16. Other 74AC157 variants may be compatible if package dimensions allow for physical substitution.