參數(shù)資料
型號(hào): 74ACTQ464ASPC
廠商: Fairchild Semiconductor Corporation
英文描述: Quiet Series⑩ Octal Transceiver/Register with 3-STATE Outputs
中文描述: 安靜系列⑩八路收發(fā)器/ 3注冊(cè)態(tài)輸出
文件頁(yè)數(shù): 2/10頁(yè)
文件大小: 97K
代理商: 74ACTQ464ASPC
www.fairchildsemi.com
2
7
Logic Symbols
IEEE/IEC
Function Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
=
LOW-to-HIGH Transition
Note 1:
The data output functions may be enabled or disabled by various signals at the G and DIR inputs. Data input functions are always enabled; i.e., data
at the bus pins will be stored on every LOW-to-HIGH transition of the appropriate clock inputs.
Inputs
Data I/O (Note 1)
Function
G
DIR
CPAB CPBA
SAB
SBA
A
0
A
7
B
0
B
7
H
H
H
L
L
L
L
L
L
L
L
X
X
X
H
H
H
H
L
L
L
L
H or L H or L
X
X
X
L
L
H
H
X
X
X
X
X
X
X
X
X
X
X
L
L
H
H
Isolation
Clock A
n
Data into A Register
Clock B
n
Data into B Register
A
n
to B
n
Real Time (Transparent Mode)
Output Clock A
n
Data into A Register
A Register to B
n
(Stored Mode)
Clock A
n
Data into A Register and Output to B
n
B
n
to A
n
Real Time (Transparent Mode)
Input
Clock B
n
Data into B Register
B Register to A
n
(Stored Mode)
Clock B
n
Data into B Register and Output to A
n
X
Input
Input
X
X
X
X
X
X
X
Input
H or L
X
X
X
X
Output
H or L
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