IDT74LVC245AQG

Overview

The IDT74LVC245AQG is a 3.3V CMOS octal bus transceiver with 3-state outputs and 5V tolerant I/O, manufactured by Renesas Electronics Corporation under the IDT brand. It operates within an industrial temperature range of -40°C to +85°C. The device supports a supply voltage (VCC) of 2.7V to 3.6V. It features ±24mA output drivers and utilizes 0.5 micron CMOS technology. The package is a 20-pin QSOP.

Feature Summary

• Supports asynchronous communication between two buses with direction control via DIR pin
• All inputs, outputs, and I/O are 5V tolerant for mixed voltage systems
• High output drivers capable of driving moderate to heavy loads while maintaining speed performance
• Designed with hysteresis on all inputs for improved noise margin

Applications

• 5V and 3.3V mixed voltage systems
• Data communication systems
• Telecommunication systems

Procurement Notes

Verify that the component matches the specific IDT74LVC245AQG designation, noting the 'QG' suffix indicates a Green QSOP package. Confirm the manufacturer is Renesas Electronics Corporation or IDT. Ensure the operating temperature range corresponds to the industrial specification (-40°C to +85°C). Check datasheet revisions for any updates to electrical characteristics or pin configurations before integration.

Selection Notes

Select this component when interfacing between 3.3V and 5V logic domains requiring bidirectional data transfer. The 5V tolerance feature allows direct connection to 5V devices without level shifting circuitry. The high drive current of ±24mA makes it suitable for moderate to heavy loads. Consider the QSOP package size constraints and the need for 3-state isolation capabilities in the system design.

Part Context

This part belongs to the IDT 74LVC245A series of octal bus transceivers. It is designed for high-speed, low-power applications using advanced dual metal CMOS technology. The LVC family is characterized by its compatibility with various logic families and its ability to operate across a wide voltage range, facilitating its use in modern mixed-voltage electronic designs.

Replacement Considerations

Compatible substitutes include other octal bus transceivers with similar 5V tolerance and 3-state output capabilities, such as the SN74LVC245 from Texas Instruments or the 74LVC245 from NXP Semiconductors, provided they match the package type and electrical specifications.