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74AVCH2T45DCTRE4 Datasheet(PDF) 4 Page - Texas Instruments

No. de pieza 74AVCH2T45DCTRE4
Descripción Electrónicos  2-Supply, Bus Transceiver with Configurable Level-Shifting
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

74AVCH2T45DCTRE4 Datasheet(HTML) 4 Page - Texas Instruments

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4
3
2
1
5
6
7
8
GND
A2
A1
VCCA
DIR
B2
B1
VCCB
D1
D2
C2
C1
B1
B2
A1
A2
1
2
3
4
8
7
6
5
VCCA
A1
A2
GND
VCCB
B1
B2
DIR
SN74AVCH2T45
SCES582H – JULY 2004 – REVISED APRIL 2015
www.ti.com
5 Description (Continued)
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 outputs are in the high-impedance state. The bus-hold
circuitry on the powered-up side always stays active.
Active bus-hold circuitry holds unused or un-driven inputs at a valid logic state. NanoFree package technology is
a major breakthrough in IC packaging concepts, using the die as the package.
6 Pin Configurations and Functions
DCT and DCU Packages
8-Pin SSOP and VSSOP
Top View
YZP Package
8-Pin DSBGA
Bottom View
Pin Functions
PIN
DESCRIPTION
SSOP,
NAME
DSBGA
VSSOP
VCCA
1
A1
Supply Voltage A
VCCB
8
A2
Supply Voltage B
GND
4
D1
Ground
A1
2
B1
Output or input depending on state of DIR. Output level depends on VCCA.
A2
3
C1
Output or input depending on state of DIR. Output level depends on VCCA.
B1
7
B2
Output or input depending on state of DIR. Output level depends on VCCB.
B2
6
C2
Output or input depending on state of DIR. Output level depends on VCCB.
DIR
5
D2
Direction Pin, Connect to GND or to VCCA.
4
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Product Folder Links: SN74AVCH2T45


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