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參數資料
| 型號： | MC74LCX646DW |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER/ REGISTERED TRANSCEIVER |
| 中文描述： | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | PLASTIC, SOIC-24 |
| 文件頁數： | 2/10頁 |
| 文件大小： | 169K |
| 代理商： | MC74LCX646DW |
LOGIC DIAGRAM
C
D
Q
OE
DIR
CBA
SBA
SAB
CAB
C
D
Q
A0
B0
1 of 8 Channels
To 7 Other Channels
1
3
21
22
2
23
MC74LCX646
MOTOROLA
LCX DATA
BR1339 — REV 3
2
FUNCTION TABLE
Inputs
Data Ports
Operating Mode
OE
DIR
CAB
CBA
SAB
SBA
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.
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相關代理商/技術參數 |
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| MC74LCX646DWR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
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| MC74LCX652DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
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