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MC74AC4040 Datasheet(PDF) 1 Page - Motorola, Inc

Part # MC74AC4040
Description  12-STAGE BINARY RIPPLE COUNTER
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC74AC4040 Datasheet(HTML) 1 Page - Motorola, Inc

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FACT DATA
12Stage Binary Ripple Counter
The MC74AC4040 consists of 12 master-slave flip-flops. The output of each
flip-flop feeds the next and the frequency at each output is half that of the preceding
one. The state of the counter advances on the negative-going edge of the Clock
input. Reset is asynchronous and active-high.
State changes of the Q outputs do not occur simultaneously because of internal
ripple delays. Therefore, decoded output signals are subject to decoding spikes
and may have to be gated with the Clock of the MC74AC4040 for some designs.
• 140 MHz Typ. Clock
• Outputs Source/Sink 24 mA
• Operating Voltage Range: 2.0 to 6.0 V
• High Noise Immunity
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
Q11
Q10
Q8
Q9
RESET CLK
Q1
Q12
Q6
Q5
Q7
Q4
Q3
Q2
GND
FUNCTION TABLE
Clock
Reset
Output State
L
No Change
L
Advance to next state
X
H
All Outputs are low
MC74AC4040
12-STAGE
BINARY RIPPLE
COUNTER
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
LOGIC DIAGRAM
CLOCK
10
11
RESET
PIN 16 = VCC
PIN 8 = GND
9
7
6
5
3
2
4
13
12
14
15
1
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12


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