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參數(shù)資料
| 型號： | MC74LCX16646 |
| 廠商： | Motorola, Inc. |
| 英文描述： | LOW-VOLTAGE CMOS 16-BIT TRANSCEIVER/ REGISTERED TRANSCEIVER |
| 中文描述： | 低電壓CMOS 16位收發(fā)器/注冊收發(fā)器 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 164K |
| 代理商： | MC74LCX16646 |
MC74LCX16646
LCX DATA
BR1339 — REV 3
5
MOTOROLA
FUNCTION TABLE
Inputs
Data Ports
Operating Mode
OEn
DIRn
CABn
CBAn
SABn
SBAn
An
Bn
H
X
Input
Input
↑
↑
↑
↑
X
X
X
X
Isolation, Hold Storage
X
X
l
h
X
X
X
X
l
h
Store A and/or B Data
L
H
Input
Output
↑
X*
L
X
L
H
L
H
Real Time A Data to B Bus
H
X
X
QA
Stored A Data to B Bus
↑
X*
L
X
l
h
L
H
Real Time A Data to B Bus; Store A Data
H
X
L
H
QA
QA
Clock A Data to B Bus; Store A Data
L
L
Output
Input
X*
↑
X
L
L
H
L
H
Real Time B Data to A Bus
X
H
QB
X
Stored B Data to A Bus
X*
↑
X
L
L
H
l
h
Real Time B Data to A Bus; Store B Data
X
H
QB
QB
L
H
Clock B Data to A Bus; Store B Data
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Low–to–High Clock Transition; L = Low Voltage Level; l = Low Voltage Level One Setup
Time Prior to the Low–to–High Clock Transition; X = Don’t Care;
↑
= Low–to–High Clock Transition;
↑
= NOT Low–to–High Clock Transition; QA = A input storage register;
QB = B input storage register; * = The clocks are not internally gated with either the Output Enables or the Source Inputs. Therefore, data at the A or B ports may be
clocked into the storage registers, at any time. For ICC reasons, Do Not Float Inputs.
ABSOLUTE MAXIMUM RATINGS*
Symbol
Parameter
Value
Condition
Unit
VCC
VI
VO
DC Supply Voltage
–0.5 to +7.0
V
DC Input Voltage
–0.5
≤
VI
≤
+7.0
–0.5
≤
VO
≤
+7.0
–0.5
≤
VO
≤
VCC + 0.5
–50
V
DC Output Voltage
Output in 3–State
V
Note 1.
V
IIK
IOK
DC Input Diode Current
VI < GND
VO < GND
VO > VCC
mA
DC Output Diode Current
–50
mA
+50
mA
IO
ICC
IGND
TSTG
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions
beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied.
1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.
DC Output Source/Sink Current
±
50
mA
DC Supply Current Per Supply Pin
±
100
mA
DC Ground Current Per Ground Pin
±
100
mA
Storage Temperature Range
–65 to +150
°
C
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