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74HC4040 数据表(PDF) 5 Page - NXP Semiconductors

部件名 74HC4040
功能描述  12-stage binary ripple counter
PDF  24 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74HC4040 数据表(HTML) 5 Page - NXP Semiconductors

  74HC4040 Datasheet HTML 1Page - NXP Semiconductors 74HC4040 Datasheet HTML 2Page - NXP Semiconductors 74HC4040 Datasheet HTML 3Page - NXP Semiconductors 74HC4040 Datasheet HTML 4Page - NXP Semiconductors 74HC4040 Datasheet HTML 5Page - NXP Semiconductors 74HC4040 Datasheet HTML 6Page - NXP Semiconductors 74HC4040 Datasheet HTML 7Page - NXP Semiconductors 74HC4040 Datasheet HTML 8Page - NXP Semiconductors 74HC4040 Datasheet HTML 9Page - NXP Semiconductors Next Button
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74HC_HCT4040_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 14 September 2005
5 of 24
Philips Semiconductors
74HC4040; 74HCT4040
12-stage binary ripple counter
7.2 Pin description
8.
Functional description
8.1 Function table
[1]
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
↑ = LOW-to-HIGH clock transition;
↓ = HIGH-to-LOW clock transition.
Table 3:
Pin description
Symbol
Pin
Description
Q11
1
output 11
Q5
2
output 5
Q4
3
output 4
Q6
4
output 6
Q3
5
output 3
Q2
6
output 2
Q1
7
output 1
GND
8
ground (0 V)
Q0
9
output 0
CP
10
clock input (HIGH-to-LOW, edge-triggered)
MR
11
master reset input (active HIGH)
Q8
12
output 8
Q7
13
output 7
Q9
14
output 9
Q10
15
output 10
VCC
16
positive supply voltage
Table 4:
Function table
Input
Output
CP
MR
Q0 to Q11
↑
L
no change
↓
L
count
XH
L



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