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CD54HC4520F 数据表(PDF) 2 Page - Texas Instruments

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部件名 CD54HC4520F
功能描述  High-Speed CMOS Logic Dual Synchronous Counters
PDF  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CD54HC4520F 数据表(HTML) 2 Page - Texas Instruments

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2
Functional Diagram
TRUTH TABLE
CP
E
MR
OUTPUT STATE
↑
H
L
Increment Counter
L
↓
L
Increment Counter
↓
X
L
No Change
X
↑
L
No Change
↑
L
L
No Change
H
↓
L
No Change
XX
H
Q0 thru Q3 = L
H
= High State.
L
= Low State.
↑
= High-to-Low Transition.
↓
= Low-to-High Transition.
X
= Don’t Care.
1CP
1Q2
5
6
1Q3
1Q1
4
1Q0
3
1
1E
2
CL
R
1MR
7
÷10/÷16
2CP
2Q2
13
14
2Q3
2Q1
12
2Q0
11
9
2E
10
CL
R
2MR
15
÷10/÷16
GND = 8
VCC = 16
CD74HC4518, CD54HC4520, CD74HC4520, CD74HCT4520



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