SN74AVC1T45
SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES530E – DECEMBER 2003 – REVISED JUNE 2006
FEATURES
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Available in the Texas Instruments
NanoStar™ and NanoFree™ Packages
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
VCC Isolation Feature - If Either VCC Input Is at
GND, Both Ports Are in the High-Impedance
State
DIR Input Circuit Referenced to VCCA
±12-mA Output Drive at 3.3 V
I/Os Are 4.6-V Tolerant
Ioff Supports Partial-Power-Down Mode
Operation
DBV PACKAGE
(TOP VIEW)
VCCA
1
6
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)
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
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DCK PACKAGE
(TOP VIEW)
VCCB
VCCA
1
2
5
DIR
A
3
4
VCCB
VCCA
1
6
VCCB
5
DIR
GND
2
5
DIR
A
2
GND
GND
6
DRL PACKAGE
(TOP VIEW)
3
4
B
YEP OR YZP PACKAGE
(BOTTOM VIEW)
A
GND
VCCA
C1
B1
A1
3 4 C2 B
2 5 B2 DIR
1 6 A2 VCCB
B
3
A
4
B
See mechanical drawings for dimensions.
DESCRIPTION/ORDERING INFORMATION
This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. The
SN74AVC1T45 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as
low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The
B port is designed to track VCCB. VCCB 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.
ORDERING INFORMATION
PACKAGE (1)
TA
NanoStar™ – WCSP (DSBGA)
0.23-mm Large Bump – YEP
–40°C to 85°C
NanoFree™ – WCSP (DSBGA)
0.23-mm Large Bump – YZP (Pb-free)
ORDERABLE PART NUMBER
TOP-SIDE MARKING (2)
SN74AVC1T45YEPR
Tape and reel
_ _ _TC_
SN74AVC1T45YZPR
SOT (SOT-23) – DBV
(2)
SN74AVC1T45DBVR
DT1_
Tape and reel
SN74AVC1T45DCKR
TC_
SOT (SOT-553) – DRL
(1)
Tape and reel
SOT (SC-70) – DCK
Reel of 4000
SN74AVC1T45DRLR
TC_
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
DBV/DCK/DRL: 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, NanoFree are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2006, Texas Instruments Incorporated