TC7WB66CFK,LF

Overview

The TC7WB66CFK is a dual single-pole single-throw (SPST) bus switch manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65 V to 5.5 V and supports an operating temperature range from -40 °C to 125 °C. The device features a typical ON-resistance of 4 Ω at 4.5 V and a typical ON capacitance of 10 pF at 5.0 V. It utilizes a US8 package and includes input protection circuits against static discharge.

Feature Summary

• Dual SPST bus switch architecture with low ON-resistance for minimal propagation delay
• CMOS technology ensuring low power dissipation during operation
• P-MOS and N-MOS structure suitable for analog signal transmission
• AEC-Q100 Grade 1 qualified for automotive reliability standards

Applications

• High-speed data bus switching in electronic systems
• Analog signal routing requiring bidirectional transmission
• Automotive electronics applications meeting AEC-Q100 standards
• Portable devices requiring low power consumption and wide voltage operation

Procurement Notes

Verify the specific ordering suffix when procuring, as variants ending in (CT) have a restricted operating temperature range of -40 to 85 °C compared to the standard -40 to 125 °C rating. Confirm AEC-Q100 compliance requirements directly with Toshiba sales representatives if automotive qualification details are needed for your specific application context.

Selection Notes

Select the TC7WB66CFK when a dual-channel bus switch with low ON-resistance is required for both digital and analog signals. Ensure the control logic matches the OE pin polarity, as this variant requires OE set low to enable the high-impedance state. Consider the US8 package dimensions and the 1.65 V to 5.5 V supply range compatibility with your system's voltage levels.

Part Context

This component belongs to the TC7WB66/67 series of CMOS digital integrated circuits. It is functionally similar to the TC7WB67CFK but differs in the logic level required to activate the output enable state. Both parts share identical electrical characteristics and packaging, differing only in the active state definition of the OE control pin.

Replacement Considerations

The TC7WB67CFK is a direct functional substitute with identical electrical parameters, provided the design accounts for the inverted OE logic requirement. No other cross-model replacements are confirmed in the official documentation.