TC74VCX245FK(EL)

Overview

The TC74VCX245FK(EL) is a high-performance CMOS octal bus transceiver designed for operation within a supply voltage range of 1.2 V to 3.6 V. It features bidirectional data transmission controlled by DIR and OE inputs, with outputs capable of driving up to ±24 mA at 3.0 V. The device supports propagation delays as low as 3.5 ns at 3.0–3.6 V and includes power-down protection on all I/O pins. It operates reliably across temperatures from -40°C to 85°C and utilizes a 20-pin US20 (VSSOP) surface-mount package.

Feature Summary

• Low-voltage operation supporting 1.2 V to 3.6 V supply ranges
• High-speed bidirectional data transfer with minimal propagation delay
• 3.6 V tolerant inputs and outputs with integrated power-down protection
• Built-in static discharge protection circuits on all input pins

Applications

• Bidirectional interface between 2.5 V and 3.3 V signal domains
• Level shifting in 1.5 V, 1.8 V, 2.5 V, or 3.3 V systems
• Data bus isolation via active enable/disable control

Procurement Notes

Verify the specific ordering suffix matches the required packaging format, such as cut tape or reel configurations. Confirm that the component status aligns with current design requirements, noting potential restrictions for new designs. Ensure compliance with RoHS directives and verify moisture sensitivity levels prior to assembly planning.

Selection Notes

Select this component when interfacing low-voltage logic families requiring robust drive strength and fast switching speeds. The wide operating voltage range allows flexibility in mixed-voltage system architectures. Consider the 3.6 V tolerance feature for applications involving legacy 5 V environments without exceeding absolute maximum ratings.

Part Context

This part belongs to the Toshiba TC74VCX series of low-voltage CMOS logic ICs. It functions as an octal bus transceiver, providing eight channels of bidirectional data flow. The VCX series is engineered for high-speed performance while maintaining low power dissipation characteristics typical of modern CMOS technologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.