MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC14528B
Dual Monostable Multivibrator
The MC14528B is a dual, retriggerable, resettable monostable multivibra-
tor. It may be triggered from either edge of an input pulse, and produces an
output pulse over a wide range of widths, the duration of which is determined
by the external timing components, CX and RX.
•
Separate Reset Available
•
Diode Protection on All Inputs
•
Triggerable from Leading or Trailing Edge Pulse
•
Supply Voltage Range = 3.0 Vdc to 18 Vdc
•
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
•
Pin–for–Pin Replacement with the MC14538B
MAXIMUM RATINGS*
(Voltages Referenced to VSS)
Symbol
VDD
Parameter
DC Supply Voltage
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
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Î
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Î
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Î
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Value
Unit
V
V
– 0.5 to + 18.0
Vin, Vout
Iin, Iout
PD
Input or Output Voltage (DC or Transient)
– 0.5 to VDD + 0.5
±
10
500
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Storage Temperature
mA
mW
Tstg
TL
– 65 to + 150
260
D SUFFIX
SOIC
CASE 751B
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
Plastic
Ceramic
SOIC
TA = – 55° to 125°C for all packages.
_
C
_
C
BLOCK DIAGRAM
CX1
1
4
A1
5
B1
3
2
6
7
Q1
Q1
RX1
VDD
Lead Temperature (8–Second Soldering)
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/
_
C From 65
_
C To 125
_
C
Ceramic “L” Packages: – 12 mW/
_
C From 100
_
C To 125
_
C
ONE–SHOT SELECTION GUIDE
100 ns
MC14528B
MC14536B
MC14538B
MC14541B
MC4538A*
12
A2
11
B2
13
1
m
s
10
m
s
100
m
s
1 ms
10 ms
100 ms
1s
10 s
23 HR
5 MIN.
RESET 1
CX2
15
14
RX2
VDD
10
9
Q2
Q2
*LIMITED OPERATING VOLTAGE (2–6 V)
TOTAL OUTPUT PULSE WIDTH RANGE
RECOMMENDED PULSE WIDTH RANGE
RESET 2
VDD = PIN 16
VSS = PIN 1, PIN 8, PIN 15
RX AND CX ARE EXTERNAL COMPONENTS
REV 3
1/94
©
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
MC14528B
1
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ELECTRICAL CHARACTERISTICS
(Voltages Referenced to VSS)
Characteristic
Symbol
VOL
VDD
Vdc
5.0
10
15
5.0
10
15
5.0
10
15
VIH
5.0
10
15
Source
IOH
5.0
5.0
10
15
5.0
10
15
15
—
5.0
10
15
—
3.5
7.0
11
– 1.2
– 0.64
– 1.6
– 4.2
0.64
1.6
4.2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
±
0.1
—
5.0
10
20
3.5
7.0
11
– 1.0
– 0.51
– 1.3
– 3.4
0.51
1.3
3.4
—
—
—
—
—
2.75
5.50
8.25
– 1.7
– 0.88
– 2.25
– 8.8
0.88
2.25
8.8
±
0.00001
5.0
0.005
0.010
0.015
—
—
—
—
—
—
—
—
—
—
±
0.1
7.5
5.0
10
20
3.5
7.0
11
– 0.7
– 0.36
– 0.9
– 2.4
0.36
0.9
2.4
—
—
—
—
—
—
—
—
mAdc
—
—
—
—
—
—
—
±
1.0
—
150
300
600
mAdc
Min
—
—
—
– 55
_
C
25
_
C
125
_
C
Max
Min
—
—
—
Typ #
0
0
0
Max
Min
—
—
—
Max
Unit
Vdc
Output Voltage
Vin = VDD or 0
“0” Level
0.05
0.05
0.05
—
—
—
1.5
3.0
4.0
0.05
0.05
0.05
—
—
—
1.5
3.0
4.0
0.05
0.05
0.05
—
—
—
1.5
3.0
4.0
Vdc
“1” Level
Vin = 0 or VDD
Input Voltage
“0” Level
(VO = 4.5 or 0.5 Vdc)
(VO = 9.0 or 1.0 Vdc)
(VO = 13.5 or 1.5 Vdc)
“1” Level
(VO = 0.5 or 4.5 Vdc)
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
Output Drive Current
(VOH = 2.5 Vdc)
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
(VOL = 0.4 Vdc)
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)
Input Current
Input Capacitance
(Vin = 0)
Quiescent Current
(Per Package)
**Total Supply Current at an
external load Capacitance (CL)
and at external timing
capacitance (CX), use the
formula —
VIL
—
—
—
—
—
—
2.25
4.50
6.75
—
—
—
VOH
4.95
9.95
14.95
4.95
9.95
14.95
5.0
10
15
4.95
9.95
14.95
Vdc
Vdc
Sink
IOL
Iin
Cin
IDD
µAdc
pF
µAdc
IT
IT(CL, CX) = [(CL + 0.36CX)VDDf + 2x10–8
RXCX(VDD–2)2f] x 10–3
where: IT in
µA
(per circuit), CL and CX in pF, RX in megohms,
VDD in Vdc, f in kHz is input frequency.
µAdc
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
** The formulas given are for the typical characteristics only at 25
_
C.
This device contains protection circuitry to guard against damage
due to high static voltages or electric fields. However, precautions must
be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, Vin and
Vout should be constrained to the range VSS
≤
(Vin or Vout)
≤
VDD.
Unused inputs must always be tied to an appropriate logic voltage
level (e.g., either VSS or VDD). Unused outputs must be left open.
PIN ASSIGNMENT
VSS
CX1/RX1
RESET 1
A1
B1
Q1
Q1
VSS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
VSS
CX2/RX2
RESET 2
A2
B2
Q2
Q2
MC14528B
2
MOTOROLA CMOS LOGIC DATA
SWITCHING CHARACTERISTICS**
(CL = 50 pF, TA = 25
_
C)
Characteristic
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
Turn–Off, Turn–On Delay Time — A or B to Q or Q
tPLH, tPHL = (1.7 ns/pF) CL + 240 ns
tPLH, tPHL = (0.66 ns/pF) CL + 87 ns
tPLH, tPHL = (0.5 ns/pF) CL + 65 ns
Turn–Off, Turn–On Delay Time — A or B to Q or Q
tPLH, tPHL = (1.7 ns/pF) CL + 620 ns
tPLH, tPHL = (0.66 ns/pF) CL + 257 ns
tPLH, tPHL = (0.5 ns/pF) CL + 185 ns
Input Pulse Width — A or B
Symbol
tTLH,
tTHL
CX
pF
—
RX
kΩ
—
5.0
10
15
15
5.0
5.0
10
15
1000
10
5.0
10
15
15
5.0
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
—
—
—
—
—
150
75
55
—
—
—
—
—
—
15
10
15
—
—
—
—
—
—
—
—
—
0
0
0
0
0
0
5.0
705
290
210
70
30
30
70
30
30
550
350
300
30
50
55
6.0
8.0
8.0
325
90
60
1000
300
250
—
—
—
—
—
—
—
No Limits*
—
—
—
—
—
—
—
—
—
—
—
—
45
90
95
25
35
35
600
225
170
—
—
—
—
—
—
—
—
—
1000
ns
—
—
—
325
120
90
650
240
180
ns
—
—
—
100
50
40
200
100
80
ns
VDD
Vdc
Min
Typ #
Max
Unit
ns
tPLH,
tPHL
tPLH,
tPHL
tWH
tWL
1000
10
ns
Output Pulse Width — Q or Q
(For CX < 0.01
µF
use graph for
appropriate VDD level.)
Output Pulse Width — Q or Q
(For CX > 0.01
µF
use formula:
tW = 0.2 RX CX Ln [VDD – VSS])†
Pulse Width Match between Circuits in the same
package
Reset Propagation Delay — Reset to Q or Q
tW
15
5.0
ns
tW
10,000
10
µs
t1 – t2
10,000
10
%
tPLH,
tPHL
15
5.0
ns
1000
10
ns
Retrigger Time
trr
15
5.0
ns
1000
10
ns
External Timing Resistance
External Timing Capacitance
RX
CX
—
—
—
—
kΩ
µF
† RX is in Ohms, CX is in farads, VDD and VSS in volts, PWout in seconds.
* If CX > 15
µF,
Use Discharge Protection Diode DX, per Fig. 9.
** The formulas given are for the typical characteristics only at 25
_
C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
FUNCTION TABLE
Inputs
Reset
H
H
H
H
H
H
L
A
L
L
H
L, H,
L
X
X
H
L, H,
X
X
Not Triggered
Not Triggered
Not Triggered
Not Triggered
L
H
Not Triggered
B
H
Q
Outputs
Q
MOTOROLA CMOS LOGIC DATA
MC14528B
3
VDD
16
VDD
16
IOL
A
B
RESET
8
Q
OPEN
VOH
A
B
RESET
Q
VOL
Q
VSS
IOH
Q
VSS
OPEN
8
Figure 1. Output Source Current Test Circuit
Figure 2. Output Sink Current Test Circuit
VDD
0.1
m
F
CERAMIC
RX
′
CX
′
20 ns
Vin
90%
A
B
RESET
A′
B′
RESET′
VSS
Q
CL
Q
Q′
CL
Q′
CL
CL
Vin
10%
DUTY CYCLE = 50%
0V
20 ns
VDD
500 pF
ID
RX
CX
Figure 3. Power Dissipation Test Circuit and Waveforms
VDD
RX
′
CX
′
*CX = 15 pF
*CL = 15 pF
RX = 5.0 k
W
RX
CX
PULSE
GENERATOR
A
B
RESET
A′
B′
RESET′
VSS
Q
CL
Q
Q′
CL
Q′
CL
CL
PULSE
GENERATOR
* Includes capacitance of probes,
wiring, and fixture parasitic.
NOTE: AC test waveforms for
PG1, PG2, and PG3 on
next page.
PULSE
GENERATOR
Figure 4. AC Test Circuit
MC14528B
4
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
INPUT CONNECTIONS
Reset
VDD
VDD
PG3
Characteristics
A
B
tPLH, tPHL, tTLH, tTHL
tW
tPLH, tPHL, tTLH, tTHL
tW
tPLH(R), tPHL(R), tW
PG1
VSS
PG1
VDD
PG2
PG2
PG1 =
PG2 =
PG3 =
MOTOROLA CMOS LOGIC DATA
50%
A
tWH
B
50%
tWL
RESET
tTHL
tPLH
50%
tPHL
50%
90%
10%
50%
tTHL
90%
10%
tW
50%
Q
tPHL
Q
50%
tTLH
90%
10%
tTLH
tTLH
90%
10%
tTHL
tTHL
90%
10%
tTLH
50%
tWL
tPHL
tTLH
50%
VDD
VSS
VDD
VSS
VDD
VSS
trr
VOH
VOL
50%
tTHL
tPHL
VOH
50%
50%
VOL
Figure 5. AC Test Waveforms
1000
t W, PULSE WIDTH (
m
s)
100
RX = 100 k
W
10
RX = 10 k
W
1.0
15 V
10 V
5.0 V
10
100
VDD = 15 V
15 V
10 V
5.0 V
10 V
5.0 V
15 V
10 V
5.0 V
RX = 5.0 k
W
0.1
1000
10,000
100,000
CX, EXTERNAL CAPACITANCE (pF)
Figure 6. Pulse Width versus CX
MOTOROLA CMOS LOGIC DATA
MC14528B
5
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