參數(shù)資料
型號: 74ACTQ18825MTDX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: 18-Bit Buffer/Driver
中文描述: ACT SERIES, DUAL 9-BIT DRIVER, TRUE OUTPUT, PDSO56
封裝: 6.10 MM, MO-153, TSSOP-56
文件頁數(shù): 2/7頁
文件大小: 78K
代理商: 74ACTQ18825MTDX
www.fairchildsemi.com
2
7
Connection Diagram
Functional Description
The ACTQ18825 contains eighteen non-inverting buffers
with 3-STATE standard outputs. The device is byte con-
trolled with each byte functioning identically, but indepen-
dently of the other. The control pins may be shorted
together to obtain full 18-bit operation. The 3-STATE out-
puts 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 Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
HIGH Impedance
Logic Diagram
Inputs
Outputs
Byte 1 (0:8) Byte 2 (8:17) I
0
–I
8
I
9
–I
17
O
0
–O
8
O
9
–O
17
OE
1
OE
2
OE
3
OE
4
L
L
L
L
H
H
H
H
H
X
L
L
X
L
Z
L
X
H
L
L
X
H
Z
H
L
L
H
X
L
X
L
Z
L
L
X
H
H
X
H
Z
H
H
H
H
X
X
Z
Z
L
L
L
L
L
L
L
L
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