SN74LXC8T245DGSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LXC8T245DGSR is an 8-bit dual-supply noninverting bidirectional voltage level translation device with configurable level shifting and 3-state outputs. It supports data rates up to 420 Mbps for 3.3 V to 5.0 V applications. Both A and B ports accept I/O voltages ranging from 1.1 V to 5.5 V. The device features Schmitt-trigger inputs, integrated dynamic pull-down resistors on I/Os, and static pull-down resistors on control inputs. It operates within a temperature range of -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows independent operation of each port from 1.1 V to 5.5 V
• Robust, glitch-free power supply sequencing ensures reliable operation during power transitions
• Schmitt-trigger inputs effectively eliminate slow or noisy input signals
• Ioff-float feature supports partial-power-down mode by pulling I/Os high-impedance when supplies are disconnected

Buffers, Drivers, Receivers, Transceivers Applications

• Eliminating slow or noisy input signals in digital circuits
• Driving indicator LEDs or buzzers with appropriate voltage levels
• Debouncing mechanical switches
• General purpose I/O level shifting between different logic families
• Push-pull level shifting for interfaces such as UART, SPI, and JTAG

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific DGSR suffix corresponds to the DGS (VSSOP) package variant when sourcing. Confirm that the ordering information matches the required thermal and electrical specifications for your application environment. Ensure compatibility with existing PCB footprints designed for the 24-pin VSSOP form factor.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing systems requiring bidirectional translation between widely varying voltage domains, specifically where both ports must support the full 1.1 V to 5.5 V range. It is suitable for designs needing robust noise immunity via Schmitt triggers and low standby current through partial-power-down capabilities.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LXC8T245 family of translating transceivers manufactured by Texas Instruments. It provides a solution for connecting logic devices operating at different supply voltages without external components. The DGSR suffix indicates a specific reel-based packaging option for the VSSOP package type.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LXCH8T245DGSR is a compatible alternative within the same family offering similar functionality.