SN74AXCH2T45DCUR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXCH2T45DCUR is a two-bit non-inverting bus transceiver featuring configurable level-shifting and bus-hold inputs. It utilizes two individually configurable power-supply rails, VCCA and VCCB, both supporting a voltage range from 0.65 V to 3.6 V. The device supports asynchronous communication between data buses with glitch-free power supply sequencing. It includes VCC isolation for high-impedance states when supplies drop below 100 mV and Ioff support for partial-power-down modes. Operating temperatures range from -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows independent operation of ports across the full supported voltage range.
• Active bus-hold circuitry maintains unused or undriven inputs at valid logic states without external resistors.
• Glitch-free power supply sequencing enables either supply rail to be powered on or off in any order safely.
• VCC isolation feature disables all I/O outputs and forces a high-impedance state if either supply falls below 100 mV.

Buffers, Drivers, Receivers, Transceivers Applications

• Enterprise and communications systems
• Industrial control applications
• Personal electronics devices
• Wireless infrastructure equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CUR' corresponds to the VSSOP-8 package variant as documented in the manufacturer's ordering information. Confirm that the component meets the required RoHS compliance standards for your target market. Ensure that the operating temperature range aligns with your system's environmental specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing buses requiring low-voltage translation down to 0.65 V. The integrated bus-hold functionality simplifies PCB layout by eliminating the need for external pull-up or pull-down resistors. Consider the wide operating temperature range for harsh industrial environments. Verify compatibility with existing logic families regarding input thresholds and drive capabilities.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AXCH2T45 family of bus transceivers. It shares functional characteristics with other variants in the series but differs in packaging and tape-and-reel configuration. The DCU designation indicates the VSSOP-8 package, while the UR suffix typically denotes reel-based packaging for surface-mount assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AXCH2T45DTMR