74ACT157SJ

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT157SJ is a quad 2-input multiplexer housed in a 16-lead Small Outline Package (SOP). It features TTL-compatible inputs and outputs capable of sourcing or sinking 24 mA. The device operates within a supply voltage range of 4.5 V to 5.5 V. Propagation delays from the Select input to output are typically 5.5 ns at 5.0 V, while data input to output delays are typically 4.0 ns.

Signal Switches, Multiplexers, Decoders Feature Summary

• TTL-compatible inputs for direct interfacing with standard logic families
• Outputs provide high drive capability by sourcing and sinking 24 mA
• Reduced quiescent current and output impedance compared to previous generations

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to common buses
• Function generation using two variables with one variable common
• Implementation of gating functions

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the ordering code suffix 'J' corresponds to the EIAJ TYPE II SOP package. Confirm the specific revision level matches system requirements. Ensure the component meets the required operating temperature range of -40°C to +85°C. Check for any specific handling instructions regarding static sensitivity during assembly.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part when TTL-compatible logic levels are required alongside high-speed switching capabilities. The 24 mA output drive supports moderate capacitive loads without external buffering. Consider the 16-lead SOP form factor for space-constrained PCB layouts requiring narrow body packaging.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the AC/ACT157 series of quad 2-input multiplexers. It serves as a high-speed alternative to older logic families, offering improved performance metrics such as reduced propagation delay and lower power consumption. The ACT variant specifically ensures compatibility with TTL input thresholds.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74AC157SC offers identical functionality in a SOIC package. The 74ACT157MTC provides the same electrical characteristics in a TSSOP package. Verify pinout compatibility before substituting different package types.