SN74AVC32T245NMJR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC32T245NMJR is a 32-bit dual-supply bus transceiver from the Widebus+ family, featuring configurable voltage translation and tri-state outputs. It operates with VCCA and VCCB ranging from 1.2 V to 3.6 V, supporting universal bidirectional translation between 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V nodes. The device provides a maximum data rate of 380 Mbps for 1.8 V to 3.3 V level-shifting. It includes Ioff support for partial-power-down mode and overvoltage-tolerant inputs/outputs rated up to 4.6 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail design allows each port to operate over the full 1.2 V to 3.6 V power-supply range.
• Overvoltage-tolerant inputs and outputs enable mixed-voltage-mode data communications without external components.
• Ioff circuitry supports partial-power-down mode by disabling outputs to prevent damaging current backflow.
• VCC isolation feature ensures both ports enter a high-impedance state if either VCC input is at GND.

Buffers, Drivers, Receivers, Transceivers Applications

• Personal Electronics
• Industrial Systems
• Enterprise Infrastructure
• Telecommunications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the NMJ suffix corresponds to the nFBGA (96) package with a body size of 13.50 mm × 5.50 mm. Confirm the component meets catalog rating standards and check for RoHS compliance status in the specific orderable addendum. Ensure the ordering code matches the intended thermal performance requirements for the nFBGA package type.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing buses requiring 32-bit width and asynchronous communication across varying voltage domains. The device is suitable for applications needing independent control of direction and output enable states via dedicated DIR and OE pins. Consider the thermal resistance characteristics of the nFBGA package for heat dissipation needs in dense layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVC32T245 series within Texas Instruments' Widebus+ logic family. It shares functional specifications with variants like the ZKE and ZRL packages but differs in physical footprint and thermal metrics. The NMJ designation specifically identifies the nFBGA package configuration among the available options for this 32-bit transceiver architecture.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74AVC32T245ZKE and SN74AVC32T245ZRL. These alternatives share identical electrical and logical specifications but utilize LFBGA or BGA Microstar Junior packages respectively. Verify pinout compatibility and thermal requirements before substituting different package types.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the VCC isolation feature function?

If either VCC input is at GND, the VCC isolation feature ensures that both ports are placed in a high-impedance state, effectively isolating the buses.

What is the purpose of the Ioff feature?

The Ioff feature supports partial-power-down mode operation by disabling the outputs, which prevents damaging current backflow through the device when it is powered down.