TMUX1309DYYR

Overview

The TMUX1309DYYR is a general-purpose CMOS multiplexer featuring two independent 4:1 channels in a 16-pin SOT-23-THIN package. It supports bidirectional analog and digital signals ranging from GND to VDD, with an operating supply voltage of 1.62 V to 5.5 V. The device includes internal injection current control and fail-safe logic. Key electrical parameters include a maximum on-resistance of 195 Ohms at 5 V, a bandwidth of 500 MHz, and off-isolation of -110 dB. Propagation delay is typically 15 ns at 5 V, with transition times up to 67 ns.

Feature Summary

• Internal injection current control eliminates the need for external protection diodes or resistor networks.
• Fail-safe logic allows control voltages to be applied before the power supply without damage.
• Bidirectional signal paths support rail-to-rail operation across the full supply range.
• Pin-compatible with industry standard 4052 and 4852 multiplexers.

Applications

• Analog and digital multiplexing and demultiplexing
• Data center switch systems
• Remote radio unit (RRU) configurations
• Electricity metering applications

Procurement Notes

Verify the specific DYYR suffix indicates the SOT-23-THIN-16 package and tape-and-reel quantity. Confirm RoHS compliance status matches project requirements. Ensure ESD handling protocols are followed during assembly due to the CMOS technology. Cross-reference pinout diagrams against the target PCB footprint to ensure alignment with the 16-pin thin profile.

Selection Notes

Select this component when dual differential 4:1 switching is required in a compact form factor. The SOT-23-THIN package offers space savings compared to TSSOP alternatives. Verify that the 195 Ohm on-resistance meets the signal integrity requirements for the specific application voltage. Consider the 500 MHz bandwidth for high-frequency signal routing needs.

Part Context

This part belongs to the Texas Instruments TMUX130x family of low-voltage CMOS multiplexers. It serves as the dual-channel counterpart to the single-channel TMUX1308. Both devices share similar protection features and logic compatibility but differ in channel count and configuration. The family is designed for general-purpose signal routing in portable and industrial electronics.

Replacement Considerations

TMUX1309PW is the same functional device housed in a TSSOP-16 package. TMUX1309BQB provides the same functionality in a WQFN-16 package. These variants maintain identical electrical specifications and pinouts, differing only in physical dimensions and thermal characteristics.

FAQ

Does the TMUX1309DYYR have internal ESD diodes to VDD?

No, the device does not have an internal diode path to the VDD pin, which prevents unintended power delivery to the supply rail.

What is the maximum injected current allowed into off switches?

The total injected current into all off switch inputs combined must not exceed 100 mA, while individual pins are limited to 50 mA.

Is the TMUX1309DYYR compatible with 1.8V logic levels?

Yes, all logic inputs have 1.8 V logic compatible thresholds, ensuring compatibility with both TTL and CMOS logic families.