HEF4047BT [NEXPERIA]
Monostable/astable multivibratorProduction;
| 型号： | HEF4047BT |
| 厂家： | 
Nexperia |
| 描述： | Monostable/astable multivibratorProduction 时钟 PC 光电二极管 输出元件 逻辑集成电路 |
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HEF4047B
Monostable/astable multivibrator
Rev. 6 — 17 March 2017
Product data sheet
1 General description
The HEF4047B is a retriggerable astable multivibrator that can be configured as either
a positive-edge or negative-edge triggered monostable multivibrator. The output pulse
width is programmed by selection of external components (Rt and Ct). Inputs include
clamp diodes. This enables the use of current limiting resistors to interface inputs to
voltages in excess of VCC
.
2 Features and benefits
2.1 General
• Monostable (one-shot) or astable (free-running) operation
• True and complemented buffered outputs
• Only one external resistor and capacitor required
2.2 Monostable multivibrator
• Positive- or negative-edge triggering
• Output pulse width independent of trigger pulse duration
• Retriggerable option for pulse-width expansion
• Long pulse width possible using small RC components with external counter provision
• Fast recovery time independent of pulse width
• Pulse-width accuracy maintained at duty cycles approaching 100%
2.3 Astable multivibrator
• Free-running or gatable operating modes
• 50% duty cycle
• Oscillator output available
3 Ordering information
Table 1. Ordering information
Type number
Package
Name
Description
Version
HEF4047BT
SO14
plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
Nexperia
HEF4047B
Monostable/astable multivibrator
4 Functional diagram
R
t
C
t
RCTC CTC RTC
3
1
2
13
OSCILLATOR
OUTPUT
5
ASTABLE
ASTABLE
GATE
CONTROL
12
RETRIGGER
CONTROL
RETRIGGER
4
ASTABLE
ASTABLE
MULTI-
VIBRATOR
10
O
6
8
- TRIGGER
+ TRIGGER
FREQUENCY
DIVIDER
(÷ 2)
MONOSTABLE
CONTROL
11
O
9
MR
aaa-013282
Figure 1. Functional diagram
V
DD
ASTABLE
ASTABLE
RCTC(1)
+ TRIGGER
- TRIGGER
CTC
RTC
D
O
FF
1
CP
C
OSCILLATOR
OUTPUT
C
D
D
S
D
S
D
V
D
O
O
D
O
O
D
O
O
O
O
SS
FF
2
FF
3
FF
4
RETRIGGER
CP
C
CP
CP
C
D
C
C
D
D
D
MR
aaa-013284
(1) Special input protection that allows operating input voltages outside the supply voltage lines. Compared to the standard
inputprotection pin 3 (RCTC) is more sensitive to static discharge; extra handling precautions are recommended.
Figure 2. Logic diagram
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
2 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
5 Pinning information
5.1 Pinning
1
2
3
4
5
6
7
14
13
12
11
10
9
CTC
RTC
V
DD
OSCILLATOR
OUTPUT
RCTC
RETRIGGER
ASTABLE
ASTABLE
- TRIGGER
HEF4047B
O
O
MR
V
8
+ TRIGGER
SS
aaa-013283
Figure 3. Pin configuration
5.2 Pin description
Table 2. Pin description
Symbol
Pin
1
Description
CTC
external capacitor connection
RTC
2
external resistor connection
RCTC
3
external capacitor/resistor connection
ASTABLE
4
input
ASTABLE
5
input
-TRIGGER
6
input
VSS
7
ground supply voltage
input
+TRIGGER
8
MR
9
master reset input
output
O
10
11
12
13
14
O
output
RETRIGGER
OSCILLATOR OUTPUT
VDD
input
oscillator output
supply voltage
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
3 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
6 Functional description
The HEF4047B consists of a gate-able astable multivibrator incorporating logic
techniques to permit positive or negative edge-triggered monostable multivibrator action
with retriggering and external counting options.
Inputs include +TRIGGER, −TRIGGER, ASTABLE, ASTABLE, RETRIGGER and MR
(master reset). Buffered outputs are O, O and OSCILLATOR OUTPUT. In all modes of
operation an external capacitor (Ct) must be connected between CTC and RCTC, and an
external resistor (Rt) must be connected between RTC and RCTC.
A HIGH level on the ASTABLE input enables astable operation. The period of the square
wave at O and O outputs is a function of the external components employed. ‘True’ input
pulses on the ASTABLE or ‘complement’ pulses on the ASTABLE input, allow the circuit
to be used as a gate-able multivibrator. The OSCILLATOR OUTPUT period is half of
the O output in the astable mode. However, a 50% duty factor is not guaranteed at this
output.
In the monostable mode, positive edge-triggering is accomplished by applying a leading-
edge pulse to the +TRIGGER input and a LOW level to the −TRIGGER input. For
negative edge-triggering, a trailing-edge pulse is applied to the −TRIGGER and a HIGH
level to the +TRIGGER. Input pulses may be of any duration relative to the output pulse.
The multivibrator can be retriggered (on the leading-edge only) by applying a common
pulse to both the RETRIGGER and +TRIGGER inputs. In this mode, the output pulse
remains HIGH as long as the input pulse period is shorter than the period determined by
the RC components.
An external count down option implements coupling O to an external ‘N’ counter and
resetting the counter with the trigger pulse. The counter output pulse is fed back to the
ASTABLE input and has a duration equal to N times the period of the multivibrator. A
HIGH level on the MR input assures no output pulse during an ON-power condition. This
input can also be activated to terminate the output pulse at any time. In the monostable
mode, a HIGH level or power-ON reset pulse must be applied to MR, whenever VDD is
applied.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
4 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
7 Limiting values
Table 3. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
-0.5
-
Max
+18
Unit
V
VDD
IIK
supply voltage
input clamping current
input voltage
VI < -0.5 V or VI > VDD + 0.5 V
VO < -0.5 V or VO > VDD + 0.5 V
±10
mA
V
VI
-0.5
-
VDD + 0.5
±10
IOK
II/O
output clamping current
input/output current
supply current
mA
mA
mA
°C
-
±10
IDD
Tstg
Tamb
Ptot
-
50
storage temperature
ambient temperature
total power dissipation
-65
-40
+150
+85
°C
Tamb = -40 °C to +85 °C
SO14 package
per output
[1]
-
-
500
100
mW
mW
P
power dissipation
[1] For SO14 package: Ptot derates linearly with 8 mW/K above 70 °C.
8 Recommended operating conditions
Table 4. Operating conditions
Symbol Parameter
Conditions
Min
Max
15
Unit
V
VDD
VI
supply voltage
3
0
input voltage
VDD
+85
3.75
0.5
V
Tamb
Δt/ΔV
ambient temperature
in free air
-40
-
°C
input transition rise and fall
rate
VDD = 5 V
VDD = 10 V
VDD = 15 V
μs/V
μs/V
μs/V
-
-
0.08
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
5 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
9 Static characteristics
Table 5. Static characteristics
VSS = 0 V; VI = VSS or VDD unless otherwise specified.
Symbol Parameter
Conditions
VDD Tamb = -40 °C
Tamb = 25 °C
Tamb = 85 °C Unit
Min
3.5
7.0
11.0
-
Max
-
Min
Max
-
Min
Max
-
VIH
HIGH-level
input voltage
|IO| < 1 μA
5 V
3.5
3.5
V
V
V
V
V
V
V
V
V
V
V
V
mA
10 V
15 V
5 V
-
7.0
-
7.0
-
-
11.0
-
11.0
-
VIL
LOW-level
input voltage
|IO| < 1 μA
|IO| < 1 μA
|IO| < 1 μA
1.5
3.0
4.0
-
-
1.5
3.0
4.0
-
-
1.5
3.0
4.0
-
10 V
15 V
5 V
-
-
-
-
-
-
VOH
VOL
IOH
HIGH-level
output voltage
4.95
9.95
4.95
4.95
10 V
-
9.95
-
9.95
-
15 V 14.95
-
14.95
-
14.95
-
LOW-level
output voltage
5 V
-
0.05
0.05
0.05
-1.7
-0.52
-1.3
-3.6
-
-
0.05
0.05
0.05
-1.4
-0.44
-1.1
-3.0
-
-
0.05
0.05
0.05
-1.1
10 V
15 V
5 V
-
-
-
-
-
-
HIGH-level
output current
VO = 2.5 V
VO = 4.6 V
VO = 9.5 V
VO = 13.5 V
VO = 0.4 V
VO = 0.5 V
VO = 1.5 V
-
-
-
5 V
-
-
-
-0.36 mA
10 V
15 V
5 V
-
-
-
-
-
-
-0.9
mA
mA
mA
mA
mA
-2.4
IOL
LOW-level
output current
0.52
1.3
3.6
-
0.44
1.1
3.0
-
0.36
0.9
2.4
-
-
-
-
10 V
15 V
15 V
-
-
-
-
II
input leakage
current
±0.3
±0.3
±0.3
±0.3
±1.0 μA
±1.0 μA
output transistor OFF; 15 V
pin 3 at VDD or VSS
-
-
-
IDD
supply current
IO = 0 A
5 V
10 V
15 V
-
-
-
-
-
20
40
80
-
-
-
-
-
20
40
80
7.5
-
-
-
-
150
300
600
-
μA
μA
μA
pF
CI
input capacitance
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
6 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
10 Dynamic characteristics
Table 6. Dynamic characteristics
VSS = 0 V; Tamb = 25 °C; unless otherwise specified; for waveform and test circuit, see Figure 4 and Figure 5.
Symbol Parameter
Conditions
VDD
Extrapolation formula
68 ns + (0.55 ns/pF)CL
43 ns + (0.23 ns/pF)CL
22 ns + (0.16 ns/pF)CL
58 ns + (0.55 ns/pF)CL
29 ns + (0.23 ns/pF)CL
22 ns + (0.16 ns/pF)CL
123 ns + (0.55 ns/pF)CL
54 ns + (0.23 ns/pF)CL
42 ns + (0.16 ns/pF)CL
103 ns + (0.55 ns/pF)CL
49 ns + (0.23 ns/pF)CL
37 ns + (0.16 ns/pF)CL
133 ns + (0.55 ns/pF)CL
54 ns + (0.23 ns/pF)CL
42 ns + (0.16 ns/pF)CL
128 ns + (0.55 ns/pF)CL
54 ns + (0.23 ns/pF)CL
42 ns + (0.16 ns/pF)CL
38 ns + (0.55 ns/pF)CL
19 ns + (0.23 ns/pF)CL
17 ns + (0.16 ns/pF)CL
68 ns + (0.55 ns/pF)CL
29 ns + (0.23 ns/pF)CL
22 ns + (0.16 ns/pF)CL
83 ns + (0.55 ns/pF)CL
34 ns + (0.23 ns/pF)CL
27 ns + (0.16 ns/pF)CL
83 ns + (0.55 ns/pF)CL
34 ns + (0.23 ns/pF)CL
27 ns + (0.16 ns/pF)CL
10 ns + (1.0 ns/pF)CL
9 ns + (0.42 ns/pF)CL
6 ns + (0.28 ns/pF)CL
Min
Typ Max Unit
[1]
[1]
[1]
[1]
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tTHL
HIGH to LOW
ASTABLE, ASTABLE 5 V
to OSCILLATOR
OUTPUT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
95
45
30
85
40
30
150
65
50
130
60
45
160
65
50
155
65
50
65
30
25
95
40
30
100
45
35
100
45
35
60
30
20
190 ns
propagation delay
10 V
15 V
90
60
ns
ns
LOW to HIGH
ASTABLE, ASTABLE 5 V
to OSCILLATOR
OUTPUT
170 ns
propagation delay
10 V
15 V
80
60
ns
ns
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
HIGH to LOW
ASTABLE, ASTABLE 5 V
to O, O
300 ns
130 ns
100 ns
260 ns
120 ns
propagation delay
10 V
15 V
ASTABLE, ASTABLE 5 V
LOW to HIGH
to O, O
propagation delay
10 V
15 V
5 V
90
ns
HIGH to LOW
+/-TRIGGER to O, O
320 ns
130 ns
100 ns
310 ns
130 ns
100 ns
130 ns
propagation delay
10 V
15 V
5 V
LOW to HIGH
+/-TRIGGER to O, O
propagation delay
10 V
15 V
5 V
HIGH to LOW
+TRIGGER,
RETRIGGER to O
propagation delay
10 V
15 V
5 V
60
50
ns
ns
LOW to HIGH
+TRIGGER,
RETRIGGER to O
190 ns
propagation delay
10 V
15 V
5 V
80
60
ns
ns
HIGH to LOW
MR to O
MR to O
200 ns
propagation delay
10 V
15 V
5 V
90
70
ns
ns
LOW to HIGH
200 ns
propagation delay
10 V
15 V
5 V
90
70
ns
ns
HIGH to LOW
output transition
time
120 ns
10 V
15 V
60
40
ns
ns
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
7 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
Symbol Parameter
Conditions
VDD
5 V
Extrapolation formula
Min
-
Typ Max Unit
[1]
tTLH
LOW to HIGH
output transition
time
10 ns + (1.0 ns/pF)CL
60
30
20
110
50
35
30
15
10
120 ns
10 V
15 V
5 V
9 ns + (0.42 ns/pF)CL
-
60
40
-
ns
ns
ns
ns
ns
ns
ns
ns
6 ns + (0.28 ns/pF)CL
-
tW
pulse width
any input except MR
MR HIGH
-
-
-
-
-
-
220
100
70
60
30
20
10 V
15 V
5 V
-
-
-
10 V
15 V
-
-
[1] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF).
10.1 Waveform and test circuit
t
r
t
f
V
I
90 %
input
0 V
V
M
10 %
t
W
t
t
PLH
PHL
V
OH
90 %
V
output
M
10 %
V
OL
t
t
THL
TLH
aaa-014878
Measurement points are given in Table 7.
Logic levels: VOL and VOH are typical output voltage levels that occur with the output load.
Figure 4. input to output propagation delays, output transition time and pulse width
Table 7. Measurement points
Supply voltage
VDD
Input
VM
Output
VM
5 V to 15 V
0.5VDD
0.5VDD
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
8 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
t
W
V
I
90 %
90 %
negative
pulse
V
V
V
M
M
10 %
10 %
0 V
t
t
r
f
t
t
f
r
V
I
90 %
90 %
positive
pulse
V
M
M
10 %
10 %
0 V
t
W
001aaj781
a. Input waveform
V
EXT
V
DD
R
L
V
V
O
I
G
DUT
R
T
C
L
001aaj915
b. Test circuit
Test and measurement data is given in Table 8.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
Figure 5. Test circuit for measuring switching times
Table 8. Test data
Supply voltage Input
VI
Load
CL
VEXT
tr, tf
RL
tPLH, tPHL
open
5 V to 15 V
VDD
≤ 20 ns
50 pF
1 kΩ
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
9 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
11 Application information
Table 9. Functional connections [1]
Function
Pins connected to
Output pulse Output period or pulse width
from pins
VDD
VSS
input pulse
Astable multivibrator
Free running
4, 5, 6, 14
4, 6, 14
6, 14
7, 8, 9, 12
7, 8, 9, 12
-
10, 11, 13
10, 11, 13
10, 11, 13
at pins 10, 11; tA = 4.40 RtCt
at pin 13; tA = 2.20 RtCt
True gating
5
4
Complement gating
Monostable multivibrator
5, 7, 8, 9, 12
Positive edge-
triggering
4, 14
5, 6, 7, 9, 12
5, 7, 9, 12
5, 6, 7, 9
8
6
10, 11
10, 11
at pins 10, 11; tM = 2.48 RtCt
Negative edge-
triggering
4, 8, 14
Retriggerable
4, 14
14
8, 12
-
10, 11
10, 11
[2]
External countdown
5, 6, 7,
8, 9, 12
[1] In all cases, external resistor between pins 2 and 3, external capacitor between pins 1 and 3.
[2] Input pulse to RESET of external counting chip: external counting chip output to pin 4.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
10 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
11.1 Astable mode design information
11.1.1 Unit-to-unit transfer voltage variations
The following analysis presents worst case variations from unit-to-unit as a function of
transfer voltage (VTR) shift for free running (astable) operation.
OSCILLATOR
OUTPUT (pin 13)
t
t
t
t
2
1
2
1
O OUTPUT
(pin 10)
1
2
1
2
t
A
t
A
t
A
aaa-013285
Figure 6. Astable mode waveforms
(1)
(2)
(3)
, where tA = astable mode pulse width; see Table 10.
Table 10. Values for astable mode pulse width (tA)
VTR
tA
Min
Typ
Max
Min
Typ [1]
4.40 RtCt
4.40 RtCt
Max
VDD = 5 V or 10 V
VDD = 15 V
0.3 × VDD 0.5 × VDD 0.7 × VDD 4.71 RtCt
4 V 0.5 × VDD 11 V 4.84 RtCt
4.71 RtCt
4.84 RtCt
[1] Therefore if tA = 4.40 RtCt is used, the maximum variation is (+7.0%; -0.0%) at 10 V.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
11 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
11.1.2 Variations due to changes in VDD
In addition to variations from unit-to-unit, the astable period may vary as a function of
frequency with respect to VDD. Typical variations are presented graphically in Figure 7
and Figure 8 with 10 V as a reference.
aaa-013286
7.5
period accuracy
for O and O
(%)
5.0
(1)
(2)
(3)
2.5
0
-2.5
0
5
10
15
V
(V)
DD
(1)Tamb = 25 °C; fo = 10 kHz; Ct = 100 pF; Rt = 220 kΩ.
(2)Tamb = 25 °C; fo = 5 kHz; Ct = 100 pF; Rt = 470 kΩ.
(3)Tamb = 25 °C; fo = 1 kHz; Ct = 1000 pF; Rt = 220 kΩ.
Figure 7. Typical O and O period accuracy as a function of supply voltage; astable mode.
aaa-013287
15
(1)
period accuracy
(2)
for O and O
(3)
(4)
(%)
10
5
0
-5
0
5
10
15
V
(V)
DD
(1)Tamb = 25 °C; fo = 500 kHz; Ct = 10 pF; Rt = 47 kΩ.
(2)Tamb = 25 °C; fo = 225 kHz; Ct = 100 pF; Rt = 10 kΩ.
(3)Tamb = 25 °C; fo = 100 kHz; Ct = 100 pF; Rt = 22 kΩ.
(4)Tamb = 25 °C; fo = 50 kHz; Ct = 100 pF; Rt = 47 kΩ.
Figure 8. Typical O and O period accuracy as a function of supply voltage; astable mode.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
12 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
11.2 Monostable mode design information
The following analysis presents worst case variations from unit-to-unit as a function of
transfer voltage (VTR) shift for one-shot (monostable) operation.
+ TRIGGER
(pin 8)
OSCILLATOR
OUTPUT (pin 13)
t '
1
t
t '
1
t
2
2
O OUTPUT
(pin 10)
t
t
M
M
aaa-013288
Figure 9. Monostable waveforms.
(4)
(5)
(6)
, where tM = monostable mode pulse width; see table Table 11.
Table 11. Values for monostable mode pulse width (tM)
VTR
tM
Min
Typ
Max
Min
Typ [1]
2.48 RtCt
2.48 RtCt
Max
VDD = 5 V or 10 V
VDD = 15 V
0.3 × VDD 0.5 × VDD 0.7 × VDD
4 V 0.5 × VDD 11 V
2.78 RtCt
2.88 RtCt
2.52 RtCt
2.56 RtCt
[1] In the astable mode, the first positive half cycle has a duration of tM: succeeding durations are 1
Therefore if tM = 2.48 RtCt is used, the maximum variation is (+12%; -0.0%) at 10 V.
⁄2 tA.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
13 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
11.2.1 Retrigger mode operation
The HEF4047B can be used in the retrigger mode to extend the output pulse duration.
It can also be used to compare the frequency of an input signal with the frequency of
the internal oscillator. In the retrigger mode, the input pulse is applied to pins 8 and 12,
and the output is taken from pin 10 or 11. Normal monostable action is obtained when
one retrigger pulse is applied (see Figure 10). Extended pulse duration is obtained when
more than one pulse is applied. For two input pulses, tRE = t1' + t1 + 2t2 . For more than
two pulses, tRE (output O), terminates at some variable time, tD, after the termination of
the last retrigger pulse. tD is variable because tRE (output O) terminates after the second
positive edge of the oscillator output appears at flip-flop 4.
+ TRIGGER;
RETRIGGER
(pins 8, 12)
OSCILLATOR
OUTPUT (pin 13)
t
1
t '
1
t
t '
1
t
2
2
t
2
O OUTPUT
(pin 10)
t
t
RE
t
RE
D
t
RE
aaa-013289
Figure 10. Retrigger mode waveforms.
11.2.2 External counter option
The use of external counting circuitry extends time tM by any amount. Advantages
include digitally controlled pulse duration, small timing capacitors for long time periods,
and extremely fast recovery time. A typical implementation is shown in Figure 11.
The pulse duration at the output is:
(7)
Where text = pulse duration of the circuitry, and N is the number of counts used.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
14 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
ASTABLE
4
HEF4047B
10
optional
buffer
CP
O
5-9
0
O
output
14
12
HEF4017B
15
MR
input
pulse
t
ext
aaa-013290
Figure 11. Implementation of external counter option.
11.2.3 Timing component limitations
The capacitor used in the circuit should be non-polarized and have low leakage (that
is the parallel resistance of the capacitor should be an order of magnitude greater than
the external resistor used). There is no upper or lower limit for either Rt or Ct value to
maintain oscillation. However, for accuracy, Ct must be much larger than the inherent
stray capacitance in the system (unless this capacitance can be measured and taken
into account). Rt must be much larger than the LOCMOS ‘ON’ resistance in series with it,
which typically is hundreds of ohms.
The recommended values for Rt and Ct to comply with previously calculated formulae
without trimming should be:
• Ct ≥ 100 pF, up to any practical value
• 10 kΩ ≤ Rt ≤ 1 MΩ
11.2.4 Power consumption
In the standby mode (monostable or astable), power dissipation is a function of leakage
current in the circuit. For dynamic operation, the power required to charge the external
timing capacitor Ct is shown in the following formulae:
Astable mode:
(8)
(9)
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
15 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
Monostable mode:
(10)
Because the power dissipation does not depend on Rt, a design for minimum power
dissipation would be a small value of Ct. The value of R would depend on the desired
period (within the limitations discussed previously). Typical power consumption in astable
mode is shown in Figure 12, Figure 13 and Figure 14.
aaa-013291
5
4
3
2
10
P
(µW)
10
(1)
(2)
(3)
(4)
(5)
10
10
10
2
3
4
5
6
1
10
10
10
10
10
10
f (Hz)
VDD = 5 V.
(1) Ct = 100 nF.
(2) Ct = 10 nF.
(3) Ct = 1 nF.
(4) Ct = 100 pF.
(5) Ct = 10 pF.
Figure 12. Power consumption as a function of the output frequency at O or O; astable mode.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
16 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
aaa-013292
6
5
4
3
10
P
(µW)
10
(1)
(2)
(3)
(4)
(5)
10
10
2
3
4
5
6
1
10
10
10
10
10
10
f (Hz)
VDD = 10 V.
(1) Ct = 100 nF.
(2) Ct = 10 nF.
(3) Ct = 1 nF.
(4) Ct = 100 pF.
(5) Ct = 10 pF.
Figure 13. Power consumption as a function of the output frequency at O or O; astable mode.
aaa-013293
6
10
P
(µW)
5
10
(1)
(2)
(3)
(4)
(5)
4
3
10
10
2
3
4
5
6
1
10
10
10
10
10
10
f (Hz)
VDD = 15 V.
(1) Ct = 100 nF.
(2) Ct = 10 nF.
(3) Ct = 1 nF.
(4) Ct = 100 pF.
(5) Ct = 10 pF.
Figure 14. Power consumption as a function of the output frequency at O or O; astable mode.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
17 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
12 Package outline
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
D
E
A
X
c
y
H
v
M
A
E
Z
8
14
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
1
7
e
detail X
w
M
b
p
0
2.5
scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.
0.25
0.10
1.45
1.25
0.49
0.36
0.25
0.19
8.75
8.55
4.0
3.8
6.2
5.8
1.0
0.4
0.7
0.6
0.7
0.3
mm
1.75
1.27
0.05
1.05
0.25
0.25
0.1
0.25
0.01
8o
0o
0.010 0.057
0.004 0.049
0.019 0.0100 0.35
0.014 0.0075 0.34
0.16
0.15
0.244
0.228
0.039 0.028
0.016 0.024
0.028
0.012
inches
0.041
0.01 0.01 0.004
0.069
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-19
SOT108-1
076E06
MS-012
Figure 15. Package outline SOT108-1 (SO14)
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
18 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
13 Abbreviations
Table 12. Abbreviations
Acronym
Description
DUT
Device Under Test
14 Revision history
Table 13. Revision history
Document ID
HEF4047B v.6
Modifications:
Release date Data sheet status
Change notice Supersedes
20170317
Product data sheet
-
HEF4047B v.5
• The format of this data sheet has been redesigned to comply with the new identity guidelines
of Nexperia.
• Legal texts have been adapted to the new company name where appropriate.
HEF4047B v.5
Modifications:
HEF4047B v.4
Modifications:
20151216
• Type number HEF4047BP (SOT27-1) removed.
20140915 Product data sheet
Product data sheet
-
HEF4047B v.4
-
HEF4047B_CVN_3
• The format of this data sheet has been redesigned to comply with the new identity
guidelines of NXP Semiconductors.
• Legal texts have been adapted to the new company name where appropriate.
HEF4047B_CVN_3
19950101
Product specification
-
-
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
19 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
15 Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product
development.
Preliminary [short] data sheet
Product [short] data sheet
Qualification
Production
This document contains data from the preliminary specification.
This document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term 'short data sheet' is explained in section "Definitions".
[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple
devices. The latest product status information is available on the Internet at URL http://www.nexperia.com.
systems or equipment, nor in applications where failure or malfunction
of an Nexperia product can reasonably be expected to result in personal
15.2 Definitions
injury, death or severe property or environmental damage. Nexperia and its
suppliers accept no liability for inclusion and/or use of Nexperia products in
Draft — The document is a draft version only. The content is still under
such equipment or applications and therefore such inclusion and/or use is at
internal review and subject to formal approval, which may result in
the customer’s own risk.
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included herein
and shall have no liability for the consequences of use of such information.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
Short data sheet — A short data sheet is an extract from a full data sheet
without further testing or modification. Customers are responsible for the
with the same product type number(s) and title. A short data sheet is
design and operation of their applications and products using Nexperia
intended for quick reference only and should not be relied upon to contain
products, and Nexperia accepts no liability for any assistance with
detailed and full information. For detailed and full information see the
applications or customer product design. It is customer’s sole responsibility
relevant full data sheet, which is available on request via the local Nexperia
to determine whether the Nexperia product is suitable and fit for the
sales office. In case of any inconsistency or conflict with the short data sheet,
customer’s applications and products planned, as well as for the planned
the full data sheet shall prevail.
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products. Nexperia does not accept
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
any liability related to any default, damage, costs or problem which is based
Nexperia and its customer, unless Nexperia and customer have explicitly
on any weakness or default in the customer’s applications or products, or
agreed otherwise in writing. In no event however, shall an agreement be
the application or use by customer’s third party customer(s). Customer is
valid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.
responsible for doing all necessary testing for the customer’s applications
and products using Nexperia products in order to avoid a default of the
applications and the products or of the application or use by customer’s third
party customer(s). Nexperia does not accept any liability in this respect.
15.3 Disclaimers
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
Limited warranty and liability — Information in this document is believed
damage to the device. Limiting values are stress ratings only and (proper)
to be accurate and reliable. However, Nexperia does not give any
operation of the device at these or any other conditions above those
representations or warranties, expressed or implied, as to the accuracy
given in the Recommended operating conditions section (if present) or the
or completeness of such information and shall have no liability for the
Characteristics sections of this document is not warranted. Constant or
consequences of use of such information. Nexperia takes no responsibility
repeated exposure to limiting values will permanently and irreversibly affect
for the content in this document if provided by an information source outside
the quality and reliability of the device.
of Nexperia. In no event shall Nexperia be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation -
lost profits, lost savings, business interruption, costs related to the removal
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
or replacement of any products or rework charges) whether or not such
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
damages are based on tort (including negligence), warranty, breach of
in a valid written individual agreement. In case an individual agreement is
contract or any other legal theory. Notwithstanding any damages that
concluded only the terms and conditions of the respective agreement shall
customer might incur for any reason whatsoever, Nexperia's aggregate and
apply. Nexperia hereby expressly objects to applying the customer’s general
cumulative liability towards customer for the products described herein shall
terms and conditions with regard to the purchase of Nexperia products by
customer.
be limited in accordance with the Terms and conditions of commercial sale of
Nexperia.
No offer to sell or license — Nothing in this document may be interpreted
Right to make changes — Nexperia reserves the right to make changes
or construed as an offer to sell products that is open for acceptance or
to information published in this document, including without limitation
the grant, conveyance or implication of any license under any copyrights,
patents or other industrial or intellectual property rights.
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
publication hereof.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Suitability for use — Nexperia products are not designed, authorized or
warranted to be suitable for use in life support, life-critical or safety-critical
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
20 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified, the
product is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications. In the event that customer
uses the product for design-in and use in automotive applications to
automotive specifications and standards, customer (a) shall use the product
without Nexperia's warranty of the product for such automotive applications,
use and specifications, and (b) whenever customer uses the product for
automotive applications beyond Nexperia's specifications such use shall be
solely at customer’s own risk, and (c) customer fully indemnifies Nexperia
for any liability, damages or failed product claims resulting from customer
design and use of the product for automotive applications beyond Nexperia's
standard warranty and Nexperia's product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
15.4 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
HEF4047B
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 6 — 17 March 2017
21 / 22
Nexperia
HEF4047B
Monostable/astable multivibrator
Contents
1
General description ............................................ 1
2
Features and benefits .........................................1
General .............................................................. 1
Monostable multivibrator ....................................1
Astable multivibrator .......................................... 1
Ordering information .......................................... 1
Functional diagram .............................................2
Pinning information ............................................ 3
Pinning ...............................................................3
Pin description ...................................................3
Functional description ........................................4
Limiting values ....................................................5
Recommended operating conditions ................5
Static characteristics ..........................................6
Dynamic characteristics .....................................7
Waveform and test circuit ..................................8
Application information ....................................10
Astable mode design information .................... 11
Unit-to-unit transfer voltage variations ............. 11
Variations due to changes in VDD ...................12
Monostable mode design information ..............13
Retrigger mode operation ................................14
External counter option ....................................14
Timing component limitations .......................... 15
Power consumption ......................................... 15
Package outline .................................................18
Abbreviations .................................................... 19
Revision history ................................................ 19
Legal information ..............................................20
2.1
2.2
2.3
3
4
5
5.1
5.2
6
7
8
9
10
10.1
11
11.1
11.1.1
11.1.2
11.2
11.2.1
11.2.2
11.2.3
11.2.4
12
13
14
15
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© Nexperia B.V. 2017.
All rights reserved.
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 17 March 2017
Document identifier: HEF4047B
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