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參數資料
| 型號： | MC74LCX16543DT |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | LOW-VOLTAGE CMOS 16-BIT LATCHING TRANSCEIVER |
| 中文描述： | LVC/LCX/Z SERIES, DUAL 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | PLASTIC, TSSOP-56 |
| 文件頁數： | 3/8頁 |
| 文件大?。?/td> | 142K |
| 代理商： | MC74LCX16543DT |
MC74LCX16543
LCX DATA
BR1339 — REV 3
3
MOTOROLA
FUNCTION TABLE
Inputs
Data Ports
Operating Mode
OEABn
OEBAn
EABn
EBAn
LEABn
LEBAn
An
Bn
H
H
Input
Input
X
X
X
X
X
X
Disable Outputs
L
L
L
L
X
X
Transparent Data; Outputs Disabled
H
H
l
h
l
h
Latch and Outputs Disabled
L
H
Input
Output
H
X*
L
X
l
h
Z
Z
Load and B Outputs Disabled
H
X
X
Z
Hold; B Outputs Disabled
L
X*
L
X
L
H
L
H
Transparent A to B
H
X
l
h
L
H
Latch and Display B Outputs
H
L
Output
Input
X*
H
X
L
Z
Z
l
h
Load and A Outputs Disabled
X
H
Z
X
Hold; A Outputs DIsabled
X*
L
X
L
L
H
L
H
Transparent B to A
X
H
L
H
l
h
Latch and Display A Outputs
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; L = Low Voltage Level;
l = Low Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; X = Don’t Care; * = The latches are not internally
gated with the Output Enables. Therefore, data at the A or B ports may enter the latches at any time, provided that the LExx and Exx pins are set
accordingly. 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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