SN74LVC245ADGVR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ADGVR is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation. The device provides a maximum propagation delay of 6.3 ns at 3.3 V and includes Ioff circuitry for partial-power-down mode support. It is housed in a TVSOP-20 package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous communication between data buses with direction control via the DIR input.
• Inputs are overvoltage tolerant, accepting levels up to 5.5 V while operating at lower VCC voltages.
• Ioff circuitry disables outputs during power-down to prevent damaging backflow current.
• Provides high drive capability suitable for PCB trace length extensions and LED displays.

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 ordering suffix against the manufacturer's Package Option Addendum to confirm the exact physical package type, such as TVSOP or SSOP. Ensure the selected variant matches the required thermal resistance and moisture sensitivity level ratings for the intended assembly process and environmental conditions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating at different voltage levels within the 1.65-V to 3.6-V range. The device is appropriate for applications needing robust input tolerance up to 5.5 V and low standby current characteristics due to its CMOS technology and dedicated Ioff protection features.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC245A family of octal bus transceivers. The 'DGVR' suffix indicates a specific surface-mount TVSOP package configuration with tape-and-reel shipping. It is designed for general-purpose digital logic interfacing where voltage translation and bus isolation are required.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-down states?

The device includes Ioff circuitry that automatically disables the outputs when powered down, preventing damaging current backflow through the device into the powered-off bus.

What is the function of the OE pin?

The Output Enable (OE) input controls the state of the A and B ports. When OE is high, the device is disabled and the buses are isolated; when low, data transmission occurs based on the DIR input level.