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SN54LVH162245 Datasheet(PDF) 2 Page - Texas Instruments

Part No. SN54LVH162245
Description  3.3-V ABT 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54LVH162245 Datasheet(HTML) 2 Page - Texas Instruments

   
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SN54LVTH162245, SN74LVTH162245
3.3-V ABT 16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS260K – JUNE 1993 – REVISED APRIL 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 22-
Ω series resistors
to reduce overshoot and undershoot.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, 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.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
The SN54LVTH162245 is characterized for operation over the full military temperature range of –55
°C to 125°C.
The SN74LVTH162245 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation


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