Datasheet

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SN74AVC4T234
www.ti.com SCES810A –JUNE 2011– REVISED JUNE 2011
4-BIT DUAL-SUPPLY NON-INVERTING BUS TRANSLATOR
Check for Samples: SN74AVC4T234
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FEATURES
ZSU PACKAGE
(TOP VIEW)
• Wide Operating V
CC
Range of 0.9 V to 3.6 V
• 3.6-V I/O Tolerant to Support Mixed-Mode
Signal Operation
• Max t
pd
of 3.7 ns at 3.3 V
• Balanced propagation delays: t
PLH
= t
PHL
• Low Static-Power Consumption, 5-μA Max I
CC
• Input-Disable Feature Allows Floating Input
Conditions
• ±3-mA Output Drive at 1.8 V
• 26Ω series resistor on A-side outputs
• I
off
Supports Partial Power-Down-Mode
Operation
• Input Hysteresis Allows Slow Input Transition
and Better Switching Noise Immunity at Input
• Maximum Data Rates
– 380 Mbps (1.8-V to 3.3-V Translation)
– 200 Mbps (<1.8-V to 3.3-V Translation)
– 200 Mbps (Translate to 2.5 V or 1.8 V)
– 150 Mbps (Translate to 1.5 V)
– 100 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)
– 500-V Charged-Device Model (C101)
DESCRIPTION
This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails to enable
asynchronous communication between B-port inputs and A-port outputs. The A port is designed to track V
CCA
while the B port is designed to track V
CCB
. Both V
CCA
and V
CCB
are configurable from 0.9 V to 3.6 V.
The SN74AVC4T234 solution offers the industry's low-power needs in battery-powered portable applications by
ensuring both a very low static and dynamic power consumption across the entire V
CC
range of 0.9 V to 3.6 V,
resulting in an increased battery life. This product also maintains excellent signal integrity.
This device is 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 V
CC
isolation feature ensures that if either V
CC
input is at GND, then A-side ports are in the high-impedance
state.
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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 © 2011, 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.