SN74AVCH1T45

SINGLEBIT DUALSUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS

SCES598C – JULY 2004 – REVISED OCTOBER 2004

1

POST OFFICE BOX 655303

NanoStar

 and NanoFree Packages

Each Port to Operate Over the Full 1.2-V to

3.6-V Power-Supply Range

Operation

Need for External Pullup/Pulldown

Resistors

JESD 78, Class II

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

− 1000-V Charged-Device Model (C101)

description/ordering information

This single-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 SN74AVCH1T45 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.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING‡

NanoStar

 − WCSP (DSBGA)

0.23-mm Large Bump − YEP

Tape and reel

SN74AVCH1T45YEPR

_ _ _TF_

−40

°C to 85°C

NanoFree

 − WCSP (DSBGA)

0.23-mm Large Bump − YZP (Pb-free)

Tape and reel

SN74AVCH1T45YZPR

_ _ _TF_

SOT (SOT-23) − DBV

Tape and reel

SN74AVCH1T45DBVR

ET1_

SOT (SC-70) − DCK

Tape and reel

SN74AVCH1T45DCKR

TF_

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

www.ti.com/sc/package.

‡ DBV/DCK: The actual top-side marking has one additional character that designates the assembly/test site.

YEP/YZP: The actual top-side marking has three preceding characters to denote year, month, and sequence code, and one

following character to designate the assembly/test site. Pin 1 identifier indicates solder-bump composition

(1 = SnPb,

Copyright

 2004, Texas Instruments Incorporated

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.

NanoStar and NanoFree are trademarks of Texas Instruments.

DBV OR DCK PACKAGE

(TOP VIEW)

1

2

3

6

5

4

GND

A

DIR

B

3

2

1

4

5

6

A

GND

B

DIR

YEP OR YZP PACKAGE

(BOTTOM VIEW)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.