TC7MPB9326FT(EL)

Overview

The TC7MPB9326FT(EL) is a CMOS dual multiplexer/demultiplexer bus switch designed for low voltage and low power applications. It provides bidirectional level-shifting interfaces between nodes operating at different voltage levels, supporting VCCA ranges of 1.65 to 5.0 V and VCCB ranges of 2.3 to 5.5 V. The device features an active high Output Enable (OE) pin that isolates bus lines when disabled. It includes power-down protection on the OE input, which is 5.5 V tolerant. The package is TSSOP14.

Feature Summary

• Dual SPDT supply bus switch architecture enabling bidirectional level shifting between independent voltage domains.
• Active high output enable control allows effective isolation of bus lines when the device is disabled.
• Integrated power-down protection with 5.5 V tolerance on the OE input prevents leakage during power-off states.
• CMOS construction ensures low quiescent current consumption suitable for portable and battery-operated systems.

Applications

• Bidirectional level shifting between logic circuits operating at different supply voltages
• Interface connections between nodes requiring isolated bus switching capabilities
• Low voltage digital signal routing in portable electronic devices

Procurement Notes

Verify the specific ordering suffix FT corresponds to the TSSOP14 package configuration required for your design. Confirm that the active high OE logic aligns with your system control signals, as the companion TC7MPB9327 utilizes active low enable. Ensure voltage levels remain within specified operating ranges to maintain reliability.

Selection Notes

Select this component when designing interfaces between disparate voltage domains such as 1.8V, 2.5V, 3.3V, and 5.0V systems. The dual multiplexer structure supports two independent data paths sharing a common select input. Consider the TSSOP14 footprint constraints and verify that the 5.5 V tolerant OE input matches your control logic requirements.

Part Context

This part belongs to the TC7MPB9326/9327 series of low voltage dual SPDT supply bus switches manufactured by Toshiba Semiconductor and Storage. The series complements other bus switch solutions by offering dedicated level-shifting capabilities with integrated power-down protection. The FT suffix specifically denotes the TSSOP14 surface-mount package variant.

Replacement Considerations

The TC7MPB9327FK or TC7MPB9327FT serves as a functional substitute with identical electrical characteristics but utilizes an active low Output Enable (OE) pin instead of active high. Verify control logic polarity compatibility before substitution.