參數(shù)資料
型號(hào): 74LCX32652GX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Low Voltage Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary)
中文描述: LVC/LCX/Z SERIES, QUAD 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PBGA114
封裝: 5.50 MM, PLASTIC, MO-205, FBGA-114
文件頁數(shù): 3/11頁
文件大小: 468K
代理商: 74LCX32652GX
Preliminary
3
www.fairchildsemi.com
7
Truth Table
(Note 3)
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
=
LOW-to-HIGH Clock Transition
Note 3:
Data I/O paths (1A and 1B: 0 - 7) is shown. This also applies to data I/O (1A and 1B: 8 - 15) and #2 control pins, to data (2A and 2B: 0 - 7) and #3
control pins, to data (2A and 2B: 8 - 15) and #4 control pins.
Note 4:
The data output functions may be enabled or disabled by various signals at OEAB or OEBA inputs. Data input functions are always enabled,
i.e., data at the bus pins will be stored on every LOW-to-HIGH transition on the clock inputs.
Inputs
Inputs/Outputs (Note 4)
Operating Mode
OEAB
1
OEBA
1
CPAB
1
CPBA
1
L
H
L
H
X
H
H
H
L
X
L
L
L
L
L
L
H
H
H
H
H
L
SAB
1
X
X
X
X
X
X
X
X
L
H
H
SBA
1
X
X
X
X
X
X
L
H
X
X
H
1A
0
thru 1A
7
Input
1B
0
thru 1B
7
Input
H or L
H or L
Isolation
Store A and B Data
Store A, Hold B
Store A in Both Registers
Hold A, Store B
Store B in Both Registers
Real-Time B Data to A Bus
Store B Data to A Bus
Real-Time A Data to B Bus
Stored A Data to B Bus
Stored A Data to B Bus and
Stored B Data to A Bus
H or L
Input
Input
Not Specified
Output
Input
Input
Input
H or L
Not Specified
Output
Output
X
X
X
X
H or L
X
X
H or L
Input
Output
H or L
H or L
Output
Output
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