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DESCRIPTION/ORDERING INFORMATION

SN74AVCBH324245

32-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES550B – FEBRUARY 2004 – REVISED JUNE 2005

•

Inputs/Outputs Can Tolerate up to 4.6 V,

Which Allows Mixed-Voltage-Mode Data

•

Member of the Texas Instruments Widebus+™

Communications

Family

•

•

DOC™ Circuitry Dynamically Changes Output

Operation

Impedance, Resulting in Noise Reduction

Without Speed Degradation

•

Fully Configurable Dual-Rail Design Allows

Each Port to Operate Over Full 1.4-V to 3.6-V

•

Dynamic Drive Capability Is Equivalent to

Power-Supply Range

•

Bus Hold on Data Inputs Eliminates the Need

–

±24 mA at 3-V V

CC

for External Pullup/Pulldown Resistors

–

±15 mA at 2.3-V V

CC

•

Latch-Up Performance Exceeds 100 mA Per

–

±9 mA at 1.65-V V

CC

JESD 78, Class II

–

±6 mA at 1.4-V V

CC

•

ESD Protection Exceeds JESD 22

•

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

•

– 1000-V Charged-Device Model (C101)

the High-Impedance State

This 32-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is

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

The SN74AVCBH324245 is designed for asynchronous communication between data buses. The device

transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE) input is used to disable the outputs, so the buses effectively

are isolated.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or

pulldown resistors with the bus-hold circuitry is not recommended.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

both ports are in the high-impedance state.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

LFBGA – GKE

Tape and reel

SN74AVCBH324245KR

–40°C to 85°C

WN4245

LFBGA – ZKE

Tape and reel

74AVCBH324245ZKER

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

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.

Widebus+, DOC are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2005, 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.