Datasheet
V
CCA
A
GND B
V
CCB
NC
1
2
3
4
5
6
V
CCA
A
GND B
V
CCB
NC
1
2
3
4
5
6
1
2
3
5
4
V
CCA
A
GND
B
V
CCB
SN74AUP1T34
www.ti.com
SCES841C –JUNE 2012–REVISED MAY 2013
1-Bit Unidirectional Voltage-Level Translator
Check for Samples: SN74AUP1T34
1
FEATURES
DCK PACKAGE
• Wide Operating VCC Range of 0.9 V to 3.6 V
(TOP VIEW)
• Balanced Propagation Delays: t
PLH
= t
PHL
(1.8 V
to 3.3 V Translation Typical)
• Low Static-Power Consumption, 5 µA Max ICC
• ±6 mA Output Drive at 3 V
• I
off
Supports Partial Power-Down-Mode
Operation
• VCC Isolation Feature – If V
CCA
Input Is at
GND, B Port Is in the High-Impedance state
DRY PACKAGE
• Input Hysteresis Allows Slow Input Transition
(TOP THROUGH VIEW)
and Better Switching Noise Immunity at Input
• ESD Protection Exceeds JESD 22
• 5000-V Human-Body Model (A114-A)
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
DSF PACKAGE
(TOP THROUGH VIEW)
DESCRIPTION
The SN74AUP1T34 is a 1-bit non-inverting translator that uses two separate configurable power-supply rails. It is
a uni-directional translator from A to B. The A port is designed to track V
CCA
. V
CCA
accepts supply voltages from
0.9 V to 3.6 V. The B port is designed to track V
CCB
. V
CCB
accepts supply voltages from 0.9 V to 3.6 V. This
allows for low-voltage translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The
SN74AUP1T34 is also fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the
outputs, preventing damaging current backflow through the device when it is powered down.
The VCC isolation feature ensures that if V
CCA
input is at GND, the B port is in the high-impedance state. If V
CCB
input is at GND, any input to the A side does not cause the leakage current even floating.
ORDERING INFORMATION
For package and ordering information, see the Package Option Addendum at the end of this document.
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 © 2012–2013, 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.