74VCX1632245LBR

Buffers, Drivers, Receivers, Transceivers Overview

The 74VCX1632245LBR is a dual supply low voltage CMOS 16-bit bus transceiver designed for mixed-voltage systems. It interfaces between a 3V A-port and a 2.5V or 1.8V B-port, supporting operating voltage ranges of VCCA from 2.3V to 3.6V and VCCB from 1.65V to 2.7V. The device achieves high-speed operation with maximum data rates up to 380 Mbps at 1.8V to 3.3V translation. Propagation delays are balanced, with tPLH approximately equal to tPHL, reaching a maximum of 4.4ns at TA=85°C with VCCA=3.0V and VCCB=2.3V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual-supply architecture enabling direct interface between 3.3V buses and 2.5V or 1.8V buses in mixed-voltage environments.
• Integrated power-down protection on inputs and outputs to prevent current leakage during system power-off states.
• Asynchronous two-way communication capability controlled by directional (DIR) and enable (G) inputs for flexible data routing.

Buffers, Drivers, Receivers, Transceivers Applications

• Interface bridging between 3.3V and 1.8V data buses
• Mixed 3.3V/2.5V supply system interconnects
• High-speed asynchronous data transmission lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific LBR suffix corresponds to the TFBGA54 package configuration as listed in official order codes. Confirm that the required operating voltage range aligns with the specified VCCA and VCCB limits. Ensure ESD handling protocols meet the documented immunity standards during assembly and testing procedures.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing disparate voltage domains such as 3.3V logic with lower voltage peripherals like 1.8V or 2.5V buses. The device is suitable for applications requiring balanced propagation delays and symmetrical output impedance. Consider the TFBGA54 package for compact board layouts requiring surface-mount integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74VCX series of low voltage CMOS bus transceivers manufactured by STMicroelectronics. It utilizes sub-micron silicon gate and five-layer metal wiring C2MOS technology to achieve high speed while maintaining low power dissipation characteristics typical of the family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Cross-reference with other 74VCX1632245 variants such as the TTR (TSSOP48) or TBR (µTFBGA42) if package compatibility differs. Verify pinout and electrical specifications match exactly before substituting any alternative bus transceiver devices.