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Электронный компонент: CD4047

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TL F 5969
CD4047BMCD4047BC
Low
Power
MonostableAstable
Multivibrator
October 1993
CD4047BM CD4047BC Low Power
Monostable Astable Multivibrator
General Description
CD4047B is capable of operating in either the monostable
or astable mode It requires an external capacitor (between
pins 1 and 3) and an external resistor (between pins 2 and
3) to determine the output pulse width in the monostable
mode and the output frequency in the astable mode
Astable operation is enabled by a high level on the astable
input or low level on the astable input The output frequency
(at 50% duty cycle) at Q and Q outputs is determined by the
timing components A frequency twice that of Q is available
at the Oscillator Output a 50% duty cycle is not guaranteed
Monostable operation is obtained when the device is trig-
gered by low-to-high transition at
a
trigger input or high-to-
low transition at
b
trigger input The device can be retrig-
gered by applying a simultaneous low-to-high transition to
both the
a
trigger and retrigger inputs
A high level on Reset input resets the outputs Q to low Q to
high
Features
Y
Wide supply voltage range
3 0V to 15V
Y
High noise immunity
0 45 V
DD
(typ )
Y
Low power TTL
Fan out of 2 driving 74L
compatibility
or 1 driving 74LS
SPECIAL FEATURES
Y
Low power consumption special CMOS oscillator con-
figuration
Y
Monostable (one-shot) or astable (free-running) opera-
tion
Y
True and complemented buffered outputs
Y
Only one external R and C required
MONOSTABLE MULTIVIBRATOR FEATURES
Y
Positive- or negative-edge trigger
Y
Output pulse width independent of trigger pulse dura-
tion
Y
Retriggerable option for pulse width expansion
Y
Long pulse widths possible using small RC components
by means of external counter provision
Y
Fast recovery time essentially independent of pulse
width
Y
Pulse-width accuracy maintained at duty cycles ap-
proaching 100%
ASTABLE MULTIVIBRATOR FEATURES
Y
Free-running or gatable operating modes
Y
50% duty cycle
Y
Oscillator output available
Y
Good astable frequency stability
typical
e
g
2%
a
0 03% C
100 kHz
frequency
e
g
0 5%
a
0 015% C
10 kHz
deviation
(circuits trimmed to frequency
V
DD
e
10V
g
10%)
Applications
Y
Frequency discriminators
Y
Timing circuits
Y
Time-delay applications
Y
Envelope detection
Y
Frequency multiplication
Y
Frequency division
Block and Connection Diagrams
TL F 5969 1
Dual-In-Line Package
TL F 5969 2
Top View
Order Number CD4047B
C1995 National Semiconductor Corporation
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings
(Notes 1 and 2)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
DC Supply Voltage (V
DD
)
b
0 5V to
a
18V
DC
Input Voltage (V
IN
)
b
0 5V to V
DD
a
0 5V
DC
Storage Temperature Range (T
S
)
b
65 C to
a
150 C
Power Dissipation (P
D
)
Dual-In-Line
700 mW
Small Outline
500 mW
Lead Temperature (T
L
)
(Soldering 10 seconds)
260 C
Recommended Operating
Conditions
(Note 2)
DC Supply Voltage (V
DD
)
3V to 15V
DC
Input Voltage (V
IN
)
0 to V
DD
V
DC
Operating Temperature Range (T
A
)
CD4047BM
b
55 C to
a
125 C
CD4047BC
b
40 C to
a
85 C
DC Electrical Characteristics
CD4047BM (Note 2)
Symbol
Parameter
Conditions
b
55 C
25 C
125 C
Units
Min
Max
Min
Typ
Max
Min
Max
I
DD
Quiescent Device Current
V
DD
e
5V
5
5
150
m
A
V
DD
e
10V
10
10
300
m
A
V
DD
e
15V
20
20
600
m
A
V
OL
Low Level Output Voltage
l
I
O
l
k
1 mA
V
DD
e
5V
0 05
0
0 05
0 05
V
V
DD
e
10V
0 05
0
0 05
0 05
V
V
DD
e
15V
0 05
0
0 05
0 05
V
V
OH
High Level Output Voltage
l
I
O
l
k
1 mA
V
DD
e
5V
4 95
4 95
5
4 95
V
V
DD
e
10V
9 95
9 95
10
9 95
V
V
DD
e
15V
14 95
14 95
15
14 95
V
V
IL
Low Level Input Voltage
V
DD
e
5V V
O
e
0 5V or 4 5V
1 5
2 25
1 5
1 5
V
V
DD
e
10V V
O
e
1V or 9V
3 0
4 5
3 0
3 0
V
V
DD
e
15V V
O
e
1 5V or 13 5V
4 0
6 75
4 0
4 0
V
V
IH
High Level Input Voltage
V
DD
e
5V V
O
e
0 5V or 4 5V
3 5
3 5
2 75
3 5
V
V
DD
e
10V V
O
e
1V or 9V
7 0
7 0
5 5
7 0
V
V
DD
e
15V V
O
e
1 5V or 13 5V
11 0
11 0
8 25
11 0
V
I
OL
Low Level Output Current
V
DD
e
5V V
O
e
0 4V
0 64
0 51
0 88
0 36
mA
(Note 3)
V
DD
e
10V V
O
e
0 5V
1 6
1 3
2 25
0 9
mA
V
DD
e
15V V
O
e
1 5V
4 2
3 4
8 8
2 4
mA
I
OH
High Level Output Current V
DD
e
5V V
O
e
4 6V
b
0 64
b
0 51
b
0 88
b
0 36
mA
(Note 3)
V
DD
e
10V V
O
e
9 5V
b
1 6
b
1 3
b
2 25
b
0 9
mA
V
DD
e
15V V
O
e
13 5V
b
4 2
b
3 4
b
8 8
b
2 4
mA
I
IN
Input Current
V
DD
e
15V V
IN
e
0V
b
0 1
b
10
b
5
b
0 1
b
1 0
m
A
V
DD
e
15V V
IN
e
15V
0 1
10
b
5
0 1
1 0
m
A
DC Electrical Characteristics
CD4047BC (Note 2)
Symbol
Parameter
Conditions
b
40 C
25 C
85 C
Units
Min
Max
Min
Typ
Max
Min
Max
I
DD
Quiescent Device Current
V
DD
e
5V
20
20
150
m
A
V
DD
e
10V
40
40
300
m
A
V
DD
e
15V
80
80
600
m
A
V
OL
Low Level Output Voltage
l
I
O
l
k
1 mA
V
DD
e
5V
0 05
0
0 05
0 05
V
V
DD
e
10V
0 05
0
0 05
0 05
V
V
DD
e
15V
0 05
0
0 05
0 05
V
V
OH
High Level Output Voltage
l
I
O
l
k
1 mA
V
DD
e
5V
4 95
4 95
5
4 95
V
V
DD
e
10V
9 95
9 95
10
9 95
V
V
DD
e
15V
14 95
14 95
15
14 95
V
2
DC Electrical Characteristics
CD4047BC (Note 2) (Continued)
Symbol
Parameter
Conditions
b
40 C
25 C
85 C
Units
Min
Max
Min
Typ
Max
Min
Max
V
IL
Low Level Input Voltage
V
DD
e
5V V
O
e
0 5V or 4 5V
1 5
2 25
1 5
1 5
V
V
DD
e
10V V
O
e
1V or 9V
3 0
4 5
3 0
3 0
V
V
DD
e
15V V
O
e
1 5V or 13 5V
4 0
6 75
4 0
4 0
V
V
IH
High Level Input Voltage
V
DD
e
5V V
O
e
0 5V or 4 5V
3 5
3 5
2 75
3 5
V
V
DD
e
10V V
O
e
1V or 9V
7 0
7 0
5 5
7 0
V
V
DD
e
15V V
O
e
1 5V or 13 5V
11 0
11 0
8 25
11 0
V
I
OL
Low Level Output Current V
DD
e
5V V
O
e
0 4V
0 52
0 44
0 88
0 36
mA
(Note 3)
V
DD
e
10V V
O
e
0 5V
1 3
1 1
2 25
0 9
mA
V
DD
e
15V V
O
e
1 5V
3 6
3 0
8 8
2 4
mA
I
OH
High Level Output Current V
DD
e
5V V
O
e
4 6V
b
0 52
b
0 44
b
0 88
b
0 36
mA
(Note 3)
V
DD
e
10V V
O
e
9 5V
b
1 3
b
1 1
b
2 25
b
0 9
mA
V
DD
e
15V V
O
e
13 5V
b
3 6
b
3 0
b
8 8
b
2 4
mA
I
IN
Input Current
V
DD
e
15V V
IN
e
0V
b
0 3
b
10
b
5
b
0 3
b
1 0
m
A
V
DD
e
15V V
IN
e
15V
0 3
10
b
5
0 3
1 0
m
A
Note 1
``Absolute Maximum Ratings'' are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the devices
should be operated at these limits The table of ``Recommended Operating Conditions'' and ``Electrical Characteristics'' provides conditions for actual device
oepration
Note 2
V
SS
e
0V unless otherwise specified
Note 3
I
OH
and I
OL
are tested one output at a time
AC Electrical Characteristics
CD4047B
T
A
e
25 C C
L
e
50 pF R
L
e
200k input t
r
e
t
f
e
20 ns unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
PHL
t
PLH
Propagation Delay Time Astable
V
DD
e
5V
200
400
ns
Astable to Osc Out
V
DD
e
10V
100
200
ns
V
DD
e
15V
80
160
ns
t
PHL
t
PLH
Astable Astable to Q Q
V
DD
e
5V
550
900
ns
V
DD
e
10V
250
500
ns
V
DD
e
15V
200
400
ns
t
PHL
t
PLH
a
Trigger
b
Trigger to Q
V
DD
e
5V
700
1200
ns
V
DD
e
10V
300
600
ns
V
DD
e
15V
240
480
ns
t
PHL
t
PLH
a
Trigger Retrigger to Q
V
DD
e
5V
300
600
ns
V
DD
e
10V
175
300
ns
V
DD
e
15V
150
250
ns
t
PHL
t
PLH
Reset to Q Q
V
DD
e
5V
300
600
ns
V
DD
e
10V
125
250
ns
V
DD
e
15V
100
200
ns
t
THL
t
TLH
Transition Time Q Q Osc Out
V
DD
e
5V
100
200
ns
V
DD
e
10V
50
100
ns
V
DD
e
15V
40
80
ns
t
WL
t
WH
Minimum Input Pulse Duration
Any Input
V
DD
e
5V
500
1000
ns
V
DD
e
10V
200
400
ns
V
DD
e
15V
160
320
ns
t
RCL
t
FCL
a
Trigger Retrigger Rise and
V
DD
e
5V
15
m
s
Fall Time
V
DD
e
10V
5
m
s
V
DD
e
15V
5
m
s
C
IN
Average Input Capacitance
Any Input
5
7 5
pF
AC Parameters are guaranteed by DC correlated testing
3
Logic Diagram
TL F 5969 3
Special input protection circuit to permit larger input-voltage swings
Truth Table
Terminal Connections
Output Pulse
Typical Output
Function
To V
DD
To V
SS
Input Pulse
From
Period or
To
Pulse Width
Astable Multivibrator
Free-Running
4 5 6 14
7 8 9 12
10 11 13
t
A
(10 11)
e
4 40 RC
True Gating
4 6 14
7 8 9 12
5
10 11 13
t
A
(13)
e
2 20 RC
Complement Gating
6 14
5 7 8 9 12
4
10 11 13
Monostable Multivibrator
Positive-Edge Trigger
4 14
5 6 7 9 12
8
10 11
Negative-Edge Trigger
4 8 14
5 7 9 12
6
10 11
t
M
(10 11)
e
2 48 RC
Retriggerable
4 14
5 6 7 9
8 12
10 11
External Countdown
14
5 6 7 8 9 12
(See Figure)
(See Figure)
(See Figure)
Note
External resistor between terminals 2 and 3 External capacitor between terminals 1 and 3
Typical Implementation of External Countdown Option
TL F 5969 4
t
EXT
e
(N
b
1) t
A
a
(t
M
a
t
A
2)
4
Typical Performance Characteristics
Typical Q Q Osc Out Period
Accuracy vs Supply Voltage
(Astable Mode Operation)
TL F 5969 5
f
Q
Q
R
C
A
1000 kHz
22k
10 pF
B
100 kHz
22k
100 pF
C
10 kHz
220k
100 pF
D
1 kHz
220k
1000 pF
E
100 Hz
2 2M
1000 pF
Typical Q Q Pulse Width
Accuracy vs Supply Voltage
Monostable Mode Operation
TL F 5969 6
t
M
R
C
A
2 ms
22k
10 pF
B
7 ms
22k
100 pF
C
60 ms
220k
100 pF
D
550 ms
220k
1000 pF
E
5 5 ms
2 2M
1000 pF
Typical Q Q and Osc Out
Period Accuracy vs Temperature
Astable Mode Operation
TL F 5969 7
f
Q
Q
R
C
A
1000 kHz
22k
10 pF
B
100 kHz
22k
100 pF
C
10 kHz
220k
100 pF
D
1 kHz
220k
1000 pF
Typical Q and Q Pulse Width
Accuracy vs Temperature
Monostable Mode Operation
TL F 5969 8
t
M
R
C
A
2 ms
22k
10 pF
B
7 ms
22k
100 pF
C
60 ms
220k
100 pF
D
550 ms
220k
1000 pF
Timing Diagram
Astable Mode
TL F 5969 9
Monostable Mode
TL F 5969 10
Retrigger Mode
TL F 5969 11
5