74AC253SJX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC253SJX is a dual 4-input multiplexer with 3-STATE outputs, manufactured by Fairchild Semiconductor and distributed by onsemi. It selects two bits of data from four sources using common select inputs S0 and S1. The device operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature range of -40°C to +85°C. Propagation delays are specified at 11.5 ns maximum for Sn to Zn transitions at 5.0V. Outputs can be individually switched to a high impedance state via OEa and OEb inputs.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexer architecture with non-inverting 3-STATE outputs
• Individual output enable inputs allow direct interface with bus-oriented systems
• Outputs capable of sourcing and sinking 24 mA current
• Reduced ICC and IOZ characteristics compared to previous generations

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system interfacing
• Data selection circuits requiring multiple input sources
• Digital logic implementation of 2-pole, 4-position switches

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering code suffix 'X' corresponds to the Tape and Reel packaging format as indicated in the datasheet. Confirm that the component originates from Fairchild Semiconductor legacy documentation while being supplied under the onsemi distribution channel. Ensure compatibility with existing board layouts designed for the M16D package dimensions.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a dual 4-input multiplexer with tri-state capability is required for bus applications. Consider the 74AC series for operation across a wide voltage range up to 6.0V. Verify that the SOP-16 (M16D) package fits the available PCB space. Note that the ACT variant offers TTL-compatible inputs if necessary for specific logic level requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC family of logic integrated circuits, specifically functioning as a multiplexer. It shares functional similarities with other devices in the 74AC253 series but differs in physical packaging. The SJX designation indicates a Small Outline Package (SOP) configuration provided in tape and reel form, distinguishing it from SOIC or PDIP variants.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74ACT253SJX serves as a compatible alternative within the same package, offering TTL-compatible inputs. Other 74AC253 variants such as SC or PC may replace this unit if different packaging formats like SOIC or DIP are acceptable for the application design.