SN74LXCH8T245RHLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LXCH8T245RHLR is an 8-bit dual-supply noninverting bidirectional voltage level translating transceiver in a 24-pin VQFN package. It supports configurable voltage levels from 1.1 V to 5.5 V on both ports with bus-hold circuitry and Schmitt-trigger control inputs. The device features robust glitch-free power supply sequencing, high drive strength up to 32 mA at 5 V, and low power consumption of 4 µA maximum at 25°C. It operates reliably between -40°C and +125°C, supporting data rates up to 420 Mbps for 3.3 V to 5.0 V applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows each port to operate from 1.1 V to 5.5 V
• Bus hold on data inputs eliminates the need for external pull-up and pull-down resistors
• Schmitt-trigger control inputs allow for slow or noisy inputs
• VCC isolation and VCC disconnect feature ensures all I/Os become high-impedance if either supply is below 100 mV

Buffers, Drivers, Receivers, Transceivers Applications

• Eliminate slow or noisy input signals
• Driving indicator LEDs or buzzers
• Debouncing a mechanical switch
• General purpose I/O level shifting
• Push-pull level shifting for UART, SPI, and JTAG interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific RHLR suffix indicates the 24-pin VQFN (5.50 mm × 3.50 mm) package variant. Confirm RoHS compliance and manufacturing date codes against current production status. Ensure ESD handling protocols are followed due to the sensitivity of CMOS logic inputs. Cross-reference the datasheet revision history for any updates to switching characteristics or thermal metrics before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing systems with widely varying voltage domains, such as 1.1 V to 5.5 V. The integrated bus-hold functionality simplifies PCB layout by removing external resistors. Verify that the required data rate does not exceed 420 Mbps for standard 3.3 V to 5.0 V translations. Consider the operating temperature range of -40°C to +125°C for industrial environments requiring extended thermal stability.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LXCH8T245 family of translating transceivers designed for flexible voltage translation. It complements other Texas Instruments logic families like LVC and AVC by offering broader voltage compatibility. The RHLR suffix specifically denotes the compact VQFN packaging suitable for space-constrained designs requiring surface-mount assembly techniques.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LXCH8T245PWR