MM74HC4053SJX

Overview

The MM74HC4053SJX is a high-speed CMOS analog multiplexer manufactured by Fairchild Semiconductor, operating within a supply voltage range of 2 V to 6 V. It integrates three independent 2-to-1 channels in a single package, featuring a common enable input that forces all switches to a high-impedance state when asserted high. The device supports signal voltages swinging between the positive and negative supply rails, with a maximum differential of 10 V. Key electrical parameters include a maximum on-resistance of 230 Ohms, a typical bandwidth of 30 MHz, and propagation delays characterized by a maximum on-time of 355 ns and off-time of 290 ns. It is housed in a surface-mount SOIC-16 narrow package and operates reliably across a temperature range from -40°C to +85°C.

Feature Summary

• Integrates three independent SPDT analog switches for simultaneous signal routing
• Features a common active-high enable input for global control of switch states
• Supports bidirectional analog signals spanning the full supply voltage range
• Provides low on-resistance characteristics suitable for precision signal switching

Applications

• Audio signal routing and mixing applications
• Data acquisition systems requiring multi-channel selection
• Industrial process control signal conditioning
• Test and measurement equipment front ends

Procurement Notes

Verify the specific suffix 'SJX' against official Fairchild or ON Semiconductor documentation to confirm exact packaging and tape-and-reel specifications. Ensure the component source matches the original manufacturer's quality standards. Cross-reference the RoHS compliance status with current regulatory requirements before integration into final assemblies.

Selection Notes

Select this component when a compact solution for three independent analog paths is required within a 2V to 6V logic environment. Consider the 230 Ohm maximum on-resistance limit for signal integrity requirements. Verify that the SOIC-16 narrow footprint fits the PCB layout constraints compared to wider SOIC variants.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices, which are pin-compatible with earlier 74HCT and 4000B families but offer faster switching speeds and lower power consumption. The MM74HC4053 variant specifically addresses the need for multiple analog switching functions in space-constrained designs, serving as a core component in signal management circuits.

Replacement Considerations

Direct substitutes include the CD74HC4053E from Texas Instruments and the 74HC4053D from Toshiba. These alternatives share identical logical functionality and pinouts but may differ in specific electrical tolerances or packaging options. Verify thermal performance and on-resistance variations when swapping manufacturers.