SN74AVCH1T45 Datasheet, PDF (1/21 Pages) Texas Instruments – SINGLE BIT DUAL SUPPLY BUS TRANSCEIVER

SN74AVCH1T45
SINGLEĆBIT DUALĆSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3ĆSTATE OUTPUTS
SCES598C – JULY 2004 – REVISED OCTOBER 2004
D Available in the Texas Instruments
NanoStar and NanoFree Packages
D Control Inputs V_IH/V_IL Levels Are
Referenced to V_CCA Voltage
D Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
D I/Os Are 4.6-V Tolerant
D I_off Supports Partial-Power-Down Mode
Operation
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
DBV OR DCK PACKAGE
(TOP VIEW)
V_CCA 1
GND 2
A3
6 V_CCB
5 DIR
4B
YEP OR YZP PACKAGE
(BOTTOM VIEW)
A 34 B
GND 2 5 DIR
V_CCA 1 6 V_CCB
description/ordering information
This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is
designed to track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track
V_CCB. V_CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional
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.
The SN74AVCH1T45 is designed so that the DIR input is powered by V_CCA.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING‡
−40°C to 85°C
NanoStar − WCSP (DSBGA)
0.23-mm Large Bump − YEP
NanoFree − WCSP (DSBGA)
0.23-mm Large Bump − YZP (Pb-free)
Tape and reel
SN74AVCH1T45YEPR
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, • = Pb-free).
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.
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.
Copyright  2004, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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