SN74AXC4T245BQBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXC4T245BQBR is a four-bit noninverting bus transceiver featuring configurable voltage translation and tri-state outputs. It utilizes two individually configurable power-supply rails, VCCA and VCCB, both operational from 0.65V to 3.6V. The device supports asynchronous communication between data buses with up to 380Mbps data rate when translating from 1.8V to 3.3V. It operates within an extended temperature range of –40°C to +125°C and includes glitch-free power supply sequencing.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows independent operation of each port across the full voltage range
• Glitch-free power supply sequencing ensures robust performance during power-up or power-down in any order
• VCC isolation feature disables all I/O outputs if either supply rail drops below 100mV
• Ioff protection supports partial-power-down mode by preventing excessive current flow on biased pins

Buffers, Drivers, Receivers, Transceivers Applications

• Enterprise and communications systems
• Industrial equipment interfaces
• Personal electronics devices
• Wireless infrastructure components
• Building automation networks

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific BQB package designation matches the required WQFN footprint for PCB layout. Confirm that the ordering suffix aligns with the intended reel quantity and tape specifications. Ensure the component meets RoHS compliance requirements for the target assembly process. Cross-reference the manufacturer datasheet revision date against the production batch to guarantee updated electrical characteristics are applied.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing logic families requiring simultaneous bidirectional translation between distinct voltage domains. The dual-direction control inputs enable flexible routing for complex bus architectures. Verify that the operating voltage ranges of connected devices fall within the specified 0.65V to 3.6V limits. Consider the thermal resistance metrics if high-density mounting is required for the application environment.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AXC4T245 family of bus transceivers designed for low-voltage digital applications. It serves as a bridge between different voltage nodes, ensuring signal integrity across mixed-voltage systems. The BQB suffix indicates a specific 16-pin WQFN package variant optimized for surface-mount assembly and space-constrained designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC4T245RSVR offers similar functionality but operates at lower voltages and lacks the extended temperature range.