SN74LVT245BGQNR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVT245BGQNR is an octal bus transceiver designed for low-voltage 3.3-V VCC operation with TTL interface capability to 5-V systems. It supports asynchronous communication between data buses, transmitting data from the A bus to the B bus or vice versa based on the DIR input logic level. The device features three-state outputs and operates within a supply voltage range of 2.7 V to 3.6 V. It includes Ioff support for partial power-down mode and power-up three-state functionality to prevent driver conflicts during hot insertion.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input and output voltages with 3.3-V VCC
• Provides Ioff circuitry to disable outputs and prevent damaging current backflow when powered down
• Includes power-up three-state circuitry to place outputs in high-impedance state during power transitions
• Designed specifically for hot-insertion applications

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Hot-insertion applications requiring partial power-down support
• Interfaces providing TTL compatibility to 5-V system environments

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package marking LX245B and orderable part number SN74LVT245BGQNR against the manufacturer's official documentation. Confirm that the component corresponds to the VFBGA MicroStar Junior configuration. Ensure the revision history matches SCES004H revised September 2003 to validate technical specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring an octal bus transceiver operating at 3.3 V with 5-V tolerant inputs. It is suitable for applications needing mixed-mode signal operation and protection against backflow currents during power-down states. Consider the VFBGA package constraints and thermal requirements for the final layout.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVT245B series of octal bus transceivers manufactured by Texas Instruments. It is part of the advanced bus interface logic products line, designed to facilitate data transfer between buses operating at different voltage levels while maintaining signal integrity and preventing electrical conflicts.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVT245BZQNR is a lead-free alternative in the same ZQN package family.