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SN74AVCA164245 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN74AVCA164245
Description  16 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
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SN74AVCA164245 Datasheet(HTML) 1 Page - Texas Instruments

 
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FEATURES
DESCRIPTION/ORDERING INFORMATION
SN74AVCA164245
16-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES395B – JULY 2002 – REVISED OCTOBER 2005
Member of the Texas Instruments Widebus™
Overvoltage-Tolerant Inputs/Outputs Allow
Family
Mixed-Voltage-Mode Data Communications
DOC™ Circuitry Dynamically Changes Output
Ioff Supports Partial-Power-Down Mode
Impedance, Resulting in Noise Reduction
Operation
Without Speed Degradation
Fully Configurable Dual-Rail Design Allows
Dynamic Drive Capability Is Equivalent to
Each Port to Operate Over the Full 1.4-V to
Standard Outputs With I
OH and IOL of ±24 mA
3.6-V Power-Supply Range
at 2.5-V V
CC
Latch-Up Performance Exceeds 100 mA Per
Control Inputs V
IH/VIL Levels Are Referenced
JESD 78, Class II
to V
CCA Voltage
ESD Protection Exceeds JESD 22
If Either V
CC Input Is at GND, Both Ports Are in
– 2000-V Human-Body Model (A114-A)
the High-Impedance State
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
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 SN74AVCA164245 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 SN74AVCA164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA.
To ensure the high-impedance state during power up or power down, OE should be tied to VCCA 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,
then both ports are in the high-impedance state.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
TSSOP – DGG
Tape and reel
SN74AVCA164245GR
AVCA164245
TVSOP – DGV
Tape and reel
SN74AVCA164245VR
WA4245
–40
°C to 85°C
VFBGA – GQL
Tape and reel
SN74AVCA164245KR
WA4245
VFBGA – ZQL
Tape and reel
74AVCA164245ZQLR
(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 © 2002–2005, 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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