TC7USB221FT(EL,M)

Overview

The TC7USB221FT(EL,M) is a high-speed CMOS dual single-pole double-throw (SPDT) USB switch manufactured by Toshiba Semiconductor and Storage. It functions as a dual 1-to-2 multiplexer/demultiplexer with a common select input (S) and output enable (OE). The device operates within a power supply voltage range of 2.3 V to 3.6 V and supports an operating temperature range from -40°C to +85°C. Key electrical characteristics include a typical ON-resistance of 6.5 Ω at 3 V, an ON-capacitance of 7 pF, and a propagation delay time of 0.25 ns. It features ESD protection ratings of ±200 V for the machine model and ±2000 V for the human body model.

Feature Summary

• Dual SPDT architecture providing two independent 1-to-2 multiplexing paths controlled by shared select and output enable inputs.
• Low on-resistance and low capacitance design optimized for maintaining signal integrity in USB data applications.
• Integrated power-down protection for control and I/O pins to prevent leakage during off-states.
• Built-in electrostatic discharge protection circuits on all inputs.

Applications

• USB peripheral switching
• Data line multiplexing
• Portable electronic devices

Procurement Notes

Verify that the specific ordering suffix matches the required package configuration. Confirm RoHS compliance status through official documentation before procurement. Ensure the selected variant aligns with the specified voltage and temperature requirements for the target application environment.

Selection Notes

Select this component when a compact solution for routing differential USB signals between two ports is required. The device is suitable for designs needing low insertion loss and minimal signal distortion. Verify that the system voltage remains within the 2.3 V to 3.6 V operational range to ensure correct functionality.

Part Context

This part belongs to the TC7USB series of USB switches produced by Toshiba Semiconductor and Storage. It is designed as a general-purpose digital integrated circuit for managing data lines in consumer electronics. The component utilizes CMOS technology to achieve high speed and low power consumption.

Replacement Considerations

Consult official Toshiba documentation for verified substitute part numbers. Do not assume pin compatibility or electrical equivalence with other manufacturers' components without cross-referencing datasheets.

FAQ

How does the Output Enable (OE) pin affect the switch state?

When the OE input is held at a high level, the switches are disconnected regardless of the Select (S) input state, resulting in a high-impedance state between the ports.

What is the maximum ESD protection rating for this device?

The device provides ESD protection up to ±2000 V according to the Human Body Model (HBM) and ±200 V according to the Machine Model (MM).