MC74AC4040
12−Stage 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.
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PDIP−16
N SUFFIX
CASE 648
16
1
Features
•
•
•
•
•
140 MHz Typ. Clock
Outputs Source/Sink 24 mA
Operating Voltage Range: 2.0 to 6.0 V
High Noise Immunity
Pb−Free Packages are Available
VCC
Q11
Q10
Q8
Q9
16
15
14
13
12
16
1
RESET CLK
11
10
Q1
SOIC−16
D SUFFIX
CASE 751B
SOEIAJ−16
M SUFFIX
CASE 966
16
1
9
ORDERING INFORMATION
Device
MC74AC4040N
2
3
4
5
6
7
Q12
Q6
Q5
Q7
Q4
Q3
Q2
PDIP−16
25 Units/Rail
MC74AC4040NG
PDIP−16
(Pb−Free)
25 Units/Rail
MC74AC4040D
SOIC−16
48 Units/Rail
MC74AC4040DG
SOIC−16
(Pb−Free)
48 Units/Rail
SOIC−16
2500 Tape & Reel
MC74AC4040DR2G
8
SOIC−16 2500 Tape & Reel
(Pb−Free)
GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
FUNCTION TABLE
Reset
Output State
L
No Change
L
X
Shipping†
MC74AC4040DR2
1
Clock
Package
Advance to next state
H
All Outputs are low
MC74AC4040M
SOEIAJ−16
50 Units/Rail
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 4 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 7
1
Publication Order Number:
MC74AC4040/D
MC74AC4040
DC CHARACTERISTICS (unless otherwise specified)
Symbol
Parameter
Value
Unit
ICC
Maximum Quiescent Supply Voltage
80
mA
Vin = VCC or GND
VCC = 5.5 V, TA = Worst Case
ICC
Maximum Quiescent Supply Current
8.0
mA
Vin = VCC or GND
VCC = 5.5 V, TA = 25°C
DC CHARACTERISTICS
74AC
74AC
VCC
TA = +25°C
TA = −40°C to +85°C
Symbol
Parameter
(V)
Typ
VIH
Minimum High Level Input Voltage
3.0
4.5
5.5
−
−
−
2.1
3.15
3.85
2.1
3.15
3.85
V
VOUT = 0.1 V
or VCC − 0.1 V
3.0
4.5
5.5
−
−
−
0.9
1.35
1.65
0.9
1.35
1.65
V
VOUT = 0.1 V
or VCC − 0.1 V
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
V
3.0
4.5
5.5
−
−
−
2.56
3.86
4.86
2.46
3.76
4.76
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
3.0
4.5
5.5
−
−
−
0.36
0.36
0.36
0.44
0.44
0.44
5.5
−
±0.1
5.5
−
5.5
−
VIL
VOH
VOL
IIN
IOLD
IOHD
Maximum Low Level Input Voltage
Minimum High Level Output Voltage
Maximum Low Level Output Voltage
Maximum Input Leakage Current
Minimum Dynamic Output Current{
Guaranteed Limits
Conditions
IOUT = −50 mA
V
*VIN = VIL or VIH
−12 mA
IOH
−24 mA
−24 mA
IOUT = 50 mA
V
V
*VIN = VIL or VIH
12 mA
IOL
24 mA
24 mA
±1.0
mA
VI = VCC, GND
−
75
mA
VOLD = 1.65 V Max
−
−75
mA
VOHD = 3.85 V Min
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
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3
Unit