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SN74AVC32T245 Datasheet(PDF) 1 Page - Texas Instruments

Part No. SN74AVC32T245
Description  32-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SN74AVC32T245 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION/ORDERING INFORMATION
SN74AVC32T245
32-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES553D – MAY 2004 – REVISED JULY 2006
Max Data Rates
Member of the Texas Instruments
– 380 Mbps (1.8-V to 3.3-V Translation)
Widebus+™ Family
– 200 Mbps (< 1.8-V to 3.3-V Translation)
Control Inputs VIH/VIL Levels Are Referenced
– 200 Mbps (Translate to 2.5 V or 1.8V)
to VCCA Voltage
– 150 Mbps (Translate to 1.5 V)
VCC Isolation Feature – If Either VCC Input Is at
– 100 Mbps (Translate to 1.2 V)
GND, Both Ports Are in the High-Impedance
Latch-Up Performance Exceeds 100 mA Per
State
JESD 78, Class II
Overvoltage-Tolerant Inputs/Outputs Allow
ESD Protection Exceeds JESD 22
Mixed-Voltage-Mode Data Communications
– 4000-V Human-Body Model (A114-A)
Fully Configurable Dual-Rail Design Allows
– 200-V Machine Model (A115-A)
Each Port to Operate Over Full 1.2-V to 3.6-V
Power-Supply Range
– 1000-V Charged-Device Model (C101)
Ioff Supports Partial-Power-Down Mode
Operation
I/Os Are 4.6-V Tolerant
This
32-bit
noninverting
bus
transceiver
uses
two
separate
configurable
power-supply
rails.
The
SN74AVC32T245 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.
The SN74AVC32T245 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 output-enable (OE) input can be used to disable the outputs so the buses are
effectively isolated.
The SN74AVC32T245 is designed so that the control pins (1DIR, 2DIR, 3DIR, 4DIR, 1OE, 2OE, 3OE, and 4OE)
are supplied by VCCA.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance
state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
LFBGA – GKE
SN74AVC32T245GKER
–40
°C to 85°C
Tape and reel
WY245
LFBGA – ZKE (Pb-free)
SN74AVC32T245ZKER
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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.
Widebus+ is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, 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.


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