SN74LVC245AGQNR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245AGQNR is an octal bus transceiver with three-state outputs designed for 1.65-V to 3.6-V VCC operation. It supports asynchronous communication between data buses and accepts input voltages up to 5.5 V, enabling mixed-mode signal operation. The device features a maximum propagation delay of 6.3 ns at 3.3 V and typical output ground bounce of 2 V. It includes Ioff circuitry for partial-power-down mode and back drive protection, ensuring high-impedance states during power transitions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation by accepting 5-V inputs while operating at lower supply voltages
• Provides Ioff circuitry to disable outputs and prevent damaging current backflow during partial-power-down
• Features latch-up performance exceeding 250 mA per JESD 17 standards
• Includes ESD protection exceeding 2000-V human-body model and 1000-V charged-device model ratings

Buffers, Drivers, Receivers, Transceivers Applications

• Cable modem termination systems
• Servers
• LED displays
• Network switches
• I/O expanders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and moisture sensitivity level associated with the GQN suffix before procurement. Confirm that the component meets RoHS requirements and check the latest orderable addendum for availability status. Ensure design compatibility with the specified thermal resistance values for the selected package variant.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating at different voltage levels. It is suitable for applications needing high drive capability and fast switching speeds within low-voltage environments. Consider the thermal characteristics and package size constraints when integrating into dense PCB layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC245A family of octal bus transceivers manufactured by Texas Instruments. The 'GQ' suffix indicates a specific Microstar Junior BGA package configuration. This series is engineered for high-speed digital logic applications requiring reliable data transmission across multiple channels with minimal signal distortion.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down scenarios?

The device incorporates Ioff circuitry that automatically disables the outputs when powered down, preventing damaging current backflow through the device.

What is the maximum input voltage tolerance?

Inputs can accept voltages up to 5.5 V regardless of the VCC supply voltage, allowing compatibility with 5-V devices in mixed-mode systems.