TC7MBL3257CFT(EL)

Overview

The TC7MBL3257CFT(EL) is a low-voltage, low-capacitance CMOS digital integrated circuit functioning as a 4-bit 1-of-2 multiplexer or demultiplexer. It operates within a supply voltage range of 1.65 V to 3.6 V and supports an operating temperature range from -40 °C to +85 °C. The device features four independent switching circuits with common select (S) and output enable (OE) inputs. Key electrical characteristics include a typical on-resistance of 8.5 Ω at 3.0 V and a typical ON capacitance of 8 pF. Maximum propagation delay times are specified up to 11 ns depending on the supply voltage.

Feature Summary

• Integrates four individual two-input multiplexer/demultiplexer channels controlled by common select and output enable signals.
• Provides power-down protection for all input terminals to prevent leakage current during power-off states.
• Incorporates internal protection circuits against static discharge on all input pins.

Applications

• Low-voltage data routing in portable electronic devices
• Signal path selection in battery-operated systems
• Bus switching applications requiring minimal propagation delay

Procurement Notes

Verify component authenticity through authorized Toshiba Semiconductor and Storage distributors. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate package variations. Ensure design adherence to absolute maximum ratings to maintain reliability. Review the latest Toshiba Semiconductor Reliability Handbook for derating guidelines before final implementation.

Selection Notes

Select this component for designs requiring low signal distortion due to its low ON capacitance and resistance. It is suitable for single-supply applications operating between 1.65 V and 3.6 V. Consider the TSSOP-16 package constraints for PCB layout. Ensure unused control inputs are tied to VCC or GND to prevent undefined states.

Part Context

This part belongs to the TC7MBL series of CMOS digital logic ICs manufactured by Toshiba Semiconductor and Storage. It is specifically categorized as a bus switch or multiplexer/demultiplexer solution designed for low-power, high-speed signal switching in compact surface-mount packages.

Replacement Considerations

PI3B3257LEX is listed as a substitute part number by Diodes Incorporated.