參數(shù)資料
型號(hào): 74ACTQ16245SSC
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: 16-Bit Transceiver with 3-STATE Outputs
中文描述: ACT SERIES, DUAL 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO48
封裝: 0.300 INCH, MO-118, SSOP-48
文件頁(yè)數(shù): 2/7頁(yè)
文件大?。?/td> 86K
代理商: 74ACTQ16245SSC
www.fairchildsemi.com
2
7
Functional Description
The ACTQ16245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs. The device is byte
controlled with each byte functioning identically, but inde-
pendent 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
3-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
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
Logic Diagram
Inputs
Outputs
OE
1
T/R
1
L
L
Bus B
0
B
7
Data to Bus A
0
A
7
Bus A
0
A
7
Data to Bus B
0
B
7
HIGH-Z State on A
0
A
7
, B
0
B
7
L
H
H
X
Inputs
Outputs
OE
2
T/R
2
L
L
Bus B
8
B
15
Data to Bus A
8
A
15
Bus A
8
A
15
Data to Bus B
8
B
15
HIGH-Z State on A
8
A
15
, B
8
B
15
L
H
H
X
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