SN74AVC32T245_Bus 32-Bit Dual-Supply Bus Transceiver

Specifications

Product Overview

SN74AVC32T245_Bus is a Texas Instruments 32-bit dual-supply bus transceiver for Interface applications. The device is a noninverting transceiver with configurable voltage translation, level-shifting behavior, and tri-state outputs. It uses separate VCCA and VCCB supply rails; A-port I/O pins are referenced to VCCA, B-port I/O pins are referenced to VCCB, and the DIR and OE control inputs are referenced to VCCA.

The transceiver supports asynchronous bus communication, with DIR selecting A-to-B or B-to-A transmission. OE disables the outputs and isolates the buses by placing outputs in tri-state mode when high. If either VCCA or VCCB is at GND, both ports enter a high-impedance state. Ioff circuitry supports partial-power-down operation by disabling outputs to prevent damaging current backflow.

The accepted supply voltage range is 1.2 V to 3.6 V, with optimized operation from 1.4 V to 3.6 V. Data-rate limits include 380 Mbps for 1.8 V to 3.3 V level shifting, 200 Mbps for sub-1.8 V to 3.3 V or translation to 2.5 V or 1.8 V, 150 Mbps to 1.5 V, and 100 Mbps to 1.2 V. Package options include 96-pin LFBGA, BGA MICROSTAR JUNIOR, and nFBGA formats.

Key Features

• 32-bit noninverting bus transceiver with voltage translation
• Dual VCCA and VCCB configurable supply rails
• A port references VCCA; B port references VCCB
• DIR selects A-to-B or B-to-A transmission
• OE disables outputs and isolates buses
• Both ports high impedance if either VCC is grounded
• Ioff circuitry supports partial-power-down protection
• 4.6 V tolerant I/O pins
• 380 Mbps maximum for 1.8 V to 3.3 V shifting
• Latch-up performance exceeds 100 mA per JESD 78
• 4000 V HBM and 1000 V CDM ESD ratings
• 96-pin LFBGA, MICROSTAR JUNIOR, and nFBGA packages

Typical Applications

• Asynchronous mixed-voltage bus communication
• 1.8 V to 3.3 V level shifting
• Sub-1.8 V to 3.3 V translation
• Translation to 2.5 V or 1.8 V
• Translation to 1.5 V or 1.2 V
• Power-down bus isolation designs
• Tri-state shared bus interfaces

Procurement Notes

When requesting a quote for SN74AVC32T245_Bus, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.