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54ACTQ16245 Folha de dados(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças 54ACTQ16245
Descrição Electrónicos  16-Bit Transceiver with TRI-STATE Outputs
Download  6 Pages
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

54ACTQ16245 Folha de dados(HTML) 2 Page - National Semiconductor (TI)

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Functional Description
The ’ACTQ16245 contains sixteen non-inverting bidirec-
tional buffers with TRI-STATE outputs. The device is byte
controlled with each byte functioning identically, but indepen-
dent of the other. The control pins can be shorted together to
obtain full 16-bit operation. The following description applies
to each byte. When the T/R input is HIGH, then Bus A data
is transmitted to Bus B. When the T/R input is LOW, Bus B
data is transmitted to Bus A. The TRI-STATE outputs are
controlled by an Output Enable (OE
n) input for each byte.
When OE
n is LOW, the outputs are in 2-state mode. When
OE
n is HIGH, the outputs are in the high impedance mode,
but this does not interfere with entering new data into the
inputs.
Truth Tables
Inputs
Outputs
OE
1
T/R
1
L
L
Bus B
0–B7 Data to Bus A0–A7
L
H
Bus A
0–A7 Data to Bus B0–B7
H
X
HIGH-Z State on A
0–A7,B0–B7
Inputs
Outputs
OE
2
T/R
2
L
L
Bus B
8–B15 Data to Bus A8–A15
L
H
Bus A
8–A15 Data to Bus B8–B15
H
X
HIGH-Z State on A
8–A15,B8–B15
H = High Voltage Level
L = Low Voltage Level
X = Immaterial
Z = High Impedance
Logic Diagram
DS010926-3
www.national.com
2


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