MC74VHC4053DTR2

Overview

The MC74VHC4053DTR2 is a triple single-pole double-throw (SPDT) analog multiplexer/demultiplexer manufactured by onsemi. It utilizes high-performance silicon-gate CMOS technology to achieve fast propagation delays, low ON resistance, and low OFF leakage currents. The device features three independent SPDT switches controlled by digital select inputs A, B, and C, along with an active-high Enable pin that turns all switches off when HIGH. It supports analog signal voltages ranging from VEE to VCC, allowing for dual supply operation between -6.0 V and +12.0 V relative to ground, or single supply operation from 2.0 V to 6.0 V. The component is housed in a 16-pin TSSOP package.

Feature Summary

• Triple SPDT switch architecture providing independent control of three analog channels via dedicated digital select inputs.
• Silicon-gate CMOS construction ensuring improved linearity and lower ON resistance compared to metal-gate counterparts.
• Integrated diode protection on all inputs and outputs to guard against high static voltages and electric fields.
• Compatible with standard CMOS logic levels and LSTTL outputs when pull-up resistors are utilized.

Applications

• Signal routing in data acquisition systems requiring multiple analog input selection.
• Audio signal switching applications utilizing the device's low crosstalk and noise characteristics.
• Programmable gain amplifier circuits where analog voltage ranges vary across the power supply limits.

Procurement Notes

Verify the specific ordering suffix 'R2' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the TSSOP-16 package dimensions align with the target PCB footprint and reflow soldering profiles. Ensure the component meets RoHS compliance standards if restricted materials are prohibited in the final assembly.

Selection Notes

Select this component when three independent SPDT analog switching paths are required within a single integrated circuit. The VHC series offers faster switching speeds and lower power consumption compared to legacy HC or HCT families. Consider the maximum ON resistance variations across temperature ranges and ensure the analog signal swing remains within the specified VCC and VEE boundaries to prevent excessive current draw.

Part Context

This part belongs to the MC74VHC405x family, which includes the MC74VHC4051 (8-channel) and MC74VHC4052 (4-channel). All devices share identical pinouts with the older HC405xA and metal-gate MC1405xB series, facilitating direct pin-compatible upgrades. The VHC designation indicates high-speed CMOS performance with a wider operating voltage range than standard logic families.

Replacement Considerations

MC74VHC4053DR2G

FAQ

How does the Enable pin function?

The Enable pin is active-high. When the Enable input is HIGH, all three analog switches are turned off, isolating the common outputs/inputs from the channel inputs/outputs. When LOW, the switches operate according to the state of the Channel-Select inputs.

What is the maximum analog voltage range?

The analog signals can vary across the complete power supply range from VEE to VCC. With recommended operating conditions, VCC can range from 2.0 V to 6.0 V (relative to GND) and VEE from -6.0 V to GND, allowing a total analog swing of up to 12.0 V peak-to-peak.

Are unused inputs allowed to float?

No. Unused digital inputs (Channel-Select or Enable) must always be tied to an appropriate logic voltage level (either GND or VCC). Floating inputs can lead to unpredictable behavior or increased power consumption due to internal threshold crossing.