SN74LV245ADGSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV245ADGSR is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and supports mixed-mode voltage operation across all ports. The device features a maximum propagation delay of 6.5 ns at 5 V and includes Ioff circuitry for partial-power-down mode. It provides ESD protection exceeding 2000 V (HBM), 200 V (MM), and 1000 V (CDM). Latch-up performance exceeds 250 mA per JESD 17. The component is housed in a 20-pin VSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous communication between data buses with direction control via DIR input
• Enables down voltage translation from 5 V to 3.3 V with inputs accepting voltages up to 5.5 V
• Includes Ioff circuitry to disable outputs and prevent damaging current backflow during power-down
• Slow edge rates minimize output ringing, overshoot, and undershoot on the outputs

Buffers, Drivers, Receivers, Transceivers Applications

• Servers
• LED displays
• Network switches
• Telecom infrastructure
• Motor drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific orderable part number SN74LV245ADGSR against the manufacturer's latest Package Option Addendum to confirm active production status and RoHS compliance. Ensure the VSSOP (DGS) package dimensions match the design constraints. Confirm that the moisture sensitivity level and peak reflow temperature ratings align with the assembly process requirements.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating at different voltage levels. The wide supply voltage range allows flexibility in system architecture. Consider the slow edge rate feature if signal integrity issues related to ringing are a concern in the layout. Verify that the thermal resistance values for the VSSOP package meet the application's heat dissipation needs.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LV245A family of octal bus transceivers. It utilizes CMOS technology to provide balanced output drive capabilities. The family is designed for low-drive applications where minimizing output ringing is critical. The SN74LV245ADGSR variant specifically denotes the VSSOP package configuration within this product line.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV245ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

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

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

What is the function of the OE input pin?

The Output Enable (OE) input disables the device, effectively isolating the A and B buses when asserted high.