MC74HC574A 查看數據表（PDF） - ON Semiconductor
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MC74HC574A Datasheet PDF : 9 Pages
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OUTPUT 1
ENABLE
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
GND 10
20 VCC
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
11 CLOCK
Figure 1. Pin Assignment
MC74HC574A
FUNCTION TABLE
Inputs
Output
OE Clock D
Q
L
L
L
L,H,
H
X
H
H
L
L
X No Change
X
Z
X = Don’t Care
Z = High Impedance
DATA
INPUTS
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
CLOCK 11
OUTPUT ENABLE 1
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
NONINVERTING
OUTPUTS
PIN 20 = VCC
PIN 10 = GND
Figure 2. Logic Diagram
Design Criteria
Internal Gate Count*
Value
66.5
Units
ea.
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Internal Gate Propagation Delay
1.5
ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Internal Gate Power Dissipation
5.0
mW
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Speed Power Product
0.0075 pJ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ *Equivalent to a two−input NAND gate.
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