TC7SPB9307TU,LF(CT

Overview

The TC7SPB9307TU,LF(CT is a CMOS 1-bit dual-supply bus switch in an UF6 package. It supports VCCA from 1.65V to 5.0V and VCCB from 2.3V to 5.5V. The Output Enable (OE) input is active-Low with 5.5V tolerance and power-down protection. Typical ON-resistance is 5.0Ω at VCCA=3.0V and VCCB=4.5V. Operating temperature ranges from -40°C to 85°C.

Feature Summary

• Provides bidirectional level-shifting between nodes operating at different voltage levels without restrictions on relative magnitude.
• Features an active-Low Output Enable signal that isolates buses when inactive.
• Includes power-down protection and 5.5V tolerance at the OE input.

Applications

• Interface connections between nodes operating at different voltage levels
• Bidirectional data line translation using external pull-up resistors

Procurement Notes

Verify the specific ordering suffix LF(CT against the manufacturer's current catalog to ensure correct packaging configuration. Confirm that the UF6 package dimensions align with the target PCB footprint requirements. Ensure design compliance with the specified absolute maximum ratings for supply voltages and currents.

Selection Notes

Select this component when a single-channel bidirectional interface is required between dissimilar voltage domains. The active-Low enable logic must be compatible with the system control signals. Verify that the required ON-resistance and leakage characteristics meet the application constraints within the specified industrial temperature range.

Part Context

This device belongs to the TC7SPB series of low-voltage, low-power CMOS digital integrated circuits. It shares functional similarities with the TC7SPB9306TU but differs in the polarity of the Output Enable control signal. Both devices utilize the same UF6 package and support dual independent power supplies for flexible voltage translation applications.

Replacement Considerations

The TC7SPB9306TU serves as a direct functional substitute within the same family, provided the system design accommodates its active-High Output Enable logic instead of the TC7SPB9307TU's active-Low configuration.

FAQ

How does the TC7SPB9307TU handle power-down conditions?

The device provides power-down protection at the OE input, ensuring that the switch remains isolated even if the power supplies are removed or inactive.

What is the function of the OE pin on this component?

The OE pin acts as an active-Low output enable; when driven Low, the switch connects the A and B ports, while driving it High disconnects them.