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參數(shù)資料
| 型號(hào)： | MC74AC646N |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (NON-INVERTING) |
| 中文描述： | AC SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-24 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 242K |
| 代理商： | MC74AC646N |
MC74AC646 MC74ACT646
5-2
FACT DATA
FUNCTION TABLE
Inputs
Data I/O*
Operation or Function
G
DIR
CAB
CBA
SAB
SBA
A0–A7
B0–B7
H
H
X
X
H or L
H or L
X
X
X
X
Input
Input
Isolation
Store A and B Data
L
L
L
L
X
X
X
X
X
X
L
H
Output
Input
Real Time B Data to A Bus
Stored B Data to A Bus
L
L
H
H
X
H or L
X
X
L
H
X
X
Input
Output
Real Time A Data to B Bus
Stored A Data to B Bus
* 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.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Transition
1 OF 8 CHANNELS
D0
C0
D0
C0
CAB
SAB
DIR
CBA
SBA
G
B0
A0
TO 7 OTHER CHANNELS
LOGIC DIAGRAM
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
1
CAB
2
SAB
3
DIR
4
A0
5
A1
6
A2
7
A3
8
A4
9
A5
10
A6
11
A7
12
GND
24
23
22
21
20
19
18
17
16
14
13
VCC
CBA
SBA
G
B0
B1
B2
B3
B4
B5
B6
B7
PIN NAMES
A0–A7
Data Register Inputs
Data Register A Outputs
Data Register B Inputs
Data Register B Outputs
Clock Pulse Inputs
Transmit/Receive Inputs
Output Enable Inputs
B0–B7
CAB, CBA
SAB, SBA
DIR, G
15
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相關(guān)代理商/技術(shù)參數(shù) |
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| MC74AC648 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (INVERTING) |
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| MC74AC648N | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (INVERTING) |
| MC74AC652 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Octal Transceiver/Register with 3−State Outputs (Non−Inverting) |
| MC74AC652DW | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (NON-INVERTING) |
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