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SN74AVCB164245 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN74AVCB164245
Description  16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN74AVCB164245 Datasheet(HTML) 1 Page - Texas Instruments

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SN74AVCB164245
16BIT DUALSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS
SCES394B − JUNE 2002 − REVISED MARCH 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Member of the Texas Instruments
Widebus
 Family
D DOC Circuitry Dynamically Changes
Output Impedance, Resulting in Noise
Reduction Without Speed Degradation
D Dynamic Drive Capability Is Equivalent to
Standard Outputs With IOH and IOL of
±24 mA at 2.5-V VCC
D Control Inputs VIH/VIL Levels are
Referenced to VCCB Voltage
D If Either VCC Input Is at GND, Both Ports
Are in the High-Impedance State
D Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
D Ioff Supports Partial-Power-Down Mode
Operation
D Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.4-V to
3.6-V Power-Supply Range
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)
description/ordering information
This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The
A port is designed to track VCCA. VCCA accepts any supply voltage from 1.4 V to 3.6 V. The B port is designed
to track VCCB. VCCB accepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage
bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVCB164245 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 SN74AVCB164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCB.
To ensure the high-impedance state during power up or power down, OE should be tied to VCCB through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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. If either VCC input is at GND,
both ports are in the high-impedance state.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
TSSOP − DGG
Tape and reel
SN74AVCB164245GR
AVCB164245
−40
°C to 85°C
TVSOP − DGV
Tape and reel
SN74AVCB164245VR
WB4245
−40
°C to 85°C
VFBGA − GQL
Tape and reel
SN74AVCB164245KR
WB4245
VFBGA − ZQL (Pb-Free)
Tape and reel
74AVCB164245ZQLR
WB4245
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2005, Texas Instruments Incorporated
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.
DOC and Widebus 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.


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