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SN74ALVC164245 Datasheet(PDF) 2 Page - Texas Instruments

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Part No. SN74ALVC164245
Description  16-BIT 3.3-V TO 5-V LEVEL SHIFTING TRANSCEIVER WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74ALVC164245 Datasheet(HTML) 2 Page - Texas Instruments

 
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DESCRIPTION/ORDERING INFORMATION (CONTINUED)
GQL OR ZQL PACKAGE
(TOP VIEW)
J
H
G
F
E
D
C
B
A
2
1
3 4
6
5
K
abc
GRD OR ZRD PACKAGE
(TOP VIEW)
J
H
G
F
E
D
C
B
A
2
1
3
4
6
5
SN74ALVC164245
16-BIT 2.5-V TO 3.3-V/3.3-V TO 5-V LEVEL-SHIFTING TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS416P – MARCH 1994 – REVISED NOVEMBER 2005
The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port
outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data
from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the
A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic
HIGH or LOW level applied to prevent excess ICC and ICCZ.
TERMINAL ASSIGNMENTS(1)
(56-Ball GQL/ZQL Package)
1
2
3
4
5
6
A
1DIR
NC
NC
NC
NC
1OE
B
1B2
1B1
GND
GND
1A1
1A2
C
1B4
1B3
VCCB
VCCA
1A3
1A4
D
1B6
1B5
GND
GND
1A5
1A6
E
1B8
1B7
1A7
1A8
F
2B1
2B2
2A2
2A1
G
2B3
2B4
GND
GND
2A4
2A3
H
2B5
2B6
VCCB
VCCA
2A6
2A5
J
2B7
2B8
GND
GND
2A8
2A7
K
2DIR
NC
NC
NC
NC
2OE
abc
(1)
NC – No internal connection
TERMINAL ASSIGNMENTS(1)
(54-Ball GRD/ZRD Package)
1
2
3
4
5
6
A
1B1
NC
1DIR
1OE
NC
1A1
B
1B3
1B2
NC
NC
1A2
1A3
C
1B5
1B4
VCCB
VCCA
1A4
1A5
D
1B7
1B6
GND
GND
1A6
1A7
E
2B1
1B8
GND
GND
1A8
2A1
F
2B3
2B2
GND
GND
2A2
2A3
G
2B5
2B4
VCCB
VCCA
2A4
2A5
H
2B7
2B6
NC
NC
2A6
2A7
J
2B8
NC
2DIR
2OE
NC
2A8
(1)
NC – No internal connection
xxxxx
xxxxx
xxxxx
xxxxx
FUNCTION TABLE(1)
(EACH 8-BIT SECTION)
CONTROL INPUTS
OUTPUT CIRCUITS
OPERATION
OE
DIR
A PORT
B PORT
L
L
Enabled
Hi-Z
B data to A bus
L
H
Hi-Z
Enabled
A data to B bus
H
X
Hi-Z
Hi-Z
Isolation
(1)
Input circuits of the data I/Os always are active.
2


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