DCU PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

A1

A2

GND

B1

B2

DIR

SN74AVC2T45-Q1

www.ti.com

SCES813 – JUNE 2010

DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

Check for Samples: SN74AVC2T45-Q1

1

FEATURES

•

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

•

Qualified for Automotive Applications

•

ESD Protection Exceeds JESD 22

•

–

8000-V Human-Body Model (A114-A)

•

Fully Configurable Dual-Rail Design Allows

–

200-V Machine Model (A115-A)

Each Port to Operate Over the Full 1.2-V to

–

1000-V Charged-Device Model (C101)

3.6-V Power-Supply Range

•

I/Os Are 4.6-V Tolerant

•

Operation

•

Max Data Rates

–

500 Mbps (1.8-V to 3.3-V Translation)

–

320 Mbps (<1.8-V to 3.3-V Translation)

–

320 Mbps (Translate to 2.5 V or 1.8 V)

–

280 Mbps (Translate to 1.5 V)

–

240 Mbps (Translate to 1.2 V)

DESCRIPTION

This dual-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is

translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC2T45 is designed for asynchronous communication between two data buses. The logic levels of

the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits data

from the A bus to the B bus when the B-port outputs are activated and from the B bus to the A bus when the

A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic

preventing damaging current backflow through the device when it is powered down.

ORDERABLE PART NUMBER

TOP-SIDE MARKING

–40°C to 105°C

VSSOP – DCU

Reel of 3000

CAVC2T45TDCURQ1

SBUI

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.