HCF4098B
DUAL MONOSTABLE MULTIVIBRATOR
s
s
s
s
s
s
s
s
s
s
s
RETRIGGERABLE/RESETTABLE
CAPABILITY
TRIGGER AND RESET PROPAGATION
DELAYS INDEPENDENT OF R
X
, C
X
TRIGGERING FROM LEADING OR
TRAILING EDGE
Q AND Q BUFFERED OUTPUT AVAILABLE
SEPARATE RESETS
WIDE RANGE OF OUTPUT PULSE WIDTHS
QUIESCENT CURRENT SPECIFIED UP TO
20V
5V, 10V AND 15V PARAMETRIC RATINGS
INPUT LEAKAGE CURRENT
I
I
= 100nA (MAX) AT V
DD
= 18V T
A
= 25°C
100% TESTED FOR QUIESCENT CURRENT
MEETS ALL REQUIREMENTS OF JEDEC
JESD13B " STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DIP
SOP
ORDER CODES
PACKAGE
DIP
SOP
TUBE
HCF4098BEY
HCF4098BM1
T&R
HCF4098M013TR
DESCRIPTION
The HCF4098B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
The HCF4098B dual precision monostable
multivibrator provides stable retriggerable/
resettable one-shot operation for any fixed voltage
timing application. An external resistor (R
X
) and
an external capacitor (C
X
) control the timing for
the circuit. Adjustment of R
X
and C
X
provides a
PIN CONNECTION
wide range of output pulse widths from the Q and
Q terminals. The time delay from trigger input to
output transition (trigger propagation delay) and
the time delay from reset input to output transition
(reset propagation delay) and the time delay from
reset input to output transition (reset propagation
delay) are independent of R
X
and C
X
. Leading
edge triggering (+TR) and trailing edge triggering
(-TR) inputs are provided for triggering from either
edge of an input pulse. An unused +TR input
should be tied to V
SS
. An unused -TR input should
be tied to V
DD
. A RESET (on low level) is provided
for immediate termination of the output pulse or to
prevent output pulses when power is turned on.
September 2001
1/10
HCF4098B
An unused RESET input should be tied to V
DD
.
However, if an entire section of the HCF4098B is
not used, its reset should be tied to V
SS
(see table
1). In normal operation the circuit triggers (extends
the output pulse one period) on the application of
each new trigger pulse. For operation in the
non-retiggerable mode, Q is connected to -TR
when leading edge triggering (+TR) is used or Q is
connected to +TR when trailing edge triggering
(-TR) is used. The time period (T) for this
IINPUT EQUIVALENT CIRCUIT
multivibrator can be calculated by : T = 1/2 R
X
C
X
for C
X
> 0.01
µ
F. The min. value of external
resistance, R
X
, is 5KΩ. The max. values of
external capacitance, C
X
, is 100
µ
F. The output
pulse width has variations of
±2.5%
typically, over
the temperature range of -55
°C
to 125
°C
for
C
X
=1000pF and R
X
= 100KΩ . For power supply
variation of
±5%
typically , for V
DD
= 10V and 15V
and
±1%
typically for V
DD
= 5V at C
X
= 1000pF
and R
X
= 5KΩ .
PIN DESCRIPTION
PIN No
4, 12
5, 11
3, 13
1, 15
2, 14
6, 7
10, 9
8
16
SYMBOL
+TR
-TR
RESET
C
X
1, C
X
2
R
X
C
X
1
R
X
C
X
2
Q1, Q1
Q2, Q2
V
SS
V
DD
NAME AND FUNCTION
Leading Trigger Inputs
Trailing Trigger Inputs
Reset Inputs
External Capacitors
External resistors to Vdd
Ouputs Mono 1
Outputs Mono 2
Negative Supply Voltage
Positive Supply Voltage
FUNCTIONAL DIAGRAM
2/10
HCF4098B
TABLE 1 : Functional Terminal Connections
V
DD
to Term. N°
V
SS
to Term. N°
Input Pulse to
Term. N°
Other Connections
FUNCTION
Leading Edge Trigger/
Retriggerable
Leading Edge Trigger/Non
Retriggerable
Trailing Edge Trigger/
Retriggerable
Trailing Edge Trigger/Non
Retriggerable
Unused Section
Mono (1) Mono (2) Mono (1) Mono (2) Mono (1) Mono (2) Mono (1) Mono (2)
3, 5
3
3
3
5
11, 13
13
13
13
11
3, 4
12, 13
4
12
4
4
5
5
12
12
11
11
4, 6
12, 10
5, 7
11, 9
A Retriggerable one-shot multivibrator has an output pulse width which is extended on full time period (T) after application of the last trigger
pulse.
A Non-Retriggerable one-shot multivibrator has a time period (T) referenced from the application of the firs trigger pulse.
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
I
I
I
P
D
T
op
T
stg
Supply Voltage
DC Input Voltage
DC Input Current
Power Dissipation per Package
Power Dissipation per Output Transistor
Operating Temperature
Storage Temperature
Parameter
Value
-0.5 to +22
-0.5 to V
DD
+ 0.5
±
10
200
100
-55 to +125
-65 to +150
Unit
V
V
mA
mW
mW
°C
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
All voltage values are referred to V
SS
pin voltage.
3/10
HCF4098B
RECOMMENDED OPERATING CONDITIONS
Symbol
V
DD
V
I
T
op
Supply Voltage
Input Voltage
Operating Temperature
Parameter
Value
3 to 20
0 to V
DD
-55 to 125
Unit
V
V
°C
DC SPECIFICATIONS
Test Condition
Symbol
Parameter
V
I
(V)
0/5
0/10
0/15
0/20
0/5
0/10
0/15
5/0
10/0
15/0
0.5/4.5
1/9
1.5/13.5
4.5/0.5
9/1
13.5/1.5
2.5
4.6
9.5
13.5
0.4
0.5
1.5
V
O
(V)
|I
O
| V
DD
(µA) (V)
5
10
15
20
5
10
15
5
10
15
5
10
15
5
10
15
5
5
10
15
5
10
15
18
T
A
= 25°C
Min.
Typ.
0.02
0.02
0.02
0.04
4.95
9.95
14.95
0.05
0.05
0.05
3.5
7
11
1.5
3
4
-1.6
-0.51
-1.3
-3.4
-0.51
-1.3
-3.4
-3.2
-1
-2.6
-6.8
1
2.6
6.8
±10
-5
5
±0.1
7.5
-1.3
-0.42
-1.1
-2.8
-0.42
-1.1
-2.8
±1
3.5
7
11
1.5
3
4
-1.3
-0.42
-1.1
-2.8
-0.42
-1.1
-2.8
±1
Max.
1
2
4
20
4.95
9.95
14.95
0.05
0.05
0.05
3.5
7
11
1.5
3
4
Value
-40 to 85°C
Min.
Max.
30
60
120
600
4.95
9.95
14.95
0.05
0.05
0.05
-55 to 125°C
Min.
Max.
30
60
120
600
Unit
I
L
Quiescent Current
µA
V
OH
High Level Output
Voltage
Low Level Output
Voltage
High Level Input
Voltage
Low Level Input
Voltage
Output Drive
Current
V
OL
V
IH
V
IL
I
OH
I
OL
Output Sink
Current
Input Leakage
Current
Input Capacitance
0/5
0/5
0/10
0/15
0/5
0/10
0/15
0/18
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
V
V
V
V
mA
mA
µA
pF
I
I
C
I
Any Input
Any Input
The Noise Margin for both "1" and "0" level is: 1V min. with V
DD
=5V, 2V min. with V
DD
=10V, 2.5V min. with V
DD
=15V
4/10
HCF4098B
DYNAMIC ELECTRICAL CHARACTERISTICS
(T
amb
= 25°C, C
L
= 50pF, R
L
= 200KΩ, t
r
= t
f
= 20 ns)
Test Condition
Symbol
Parameter
R
X
(KΩ)
5 to 10000
C
X
(pF)
>15
V
DD
(V)
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
Min.
Value (*)
Typ.
250
125
100
70
30
20
100
50
40
100
50
40
150
75
65
250
150
80
225
125
75
100
40
30
600
300
250
250
15
10
5
7.5
7.5
Max.
500
250
200
ns
Unit
t
PLH
t
PHL
Propagation Delay Time
+TR or -TR to Q or Q
t
WH
t
WL
Trigger Pulse Width
5 to 10000
t
TLH
Transition Time
5 to 10000
t
THL
Transition Time
5 to 10000
>15
140
60
40
ns
200
100
80
200
100
80
300
150
130
500
300
160
450
250
150
>15
ns
15 to 10000
5 to 10000
0.01µF
to 0.1µF
0.1µF
to 1µF
ns
5 to 10000
t
PLH
t
PHL
Propagation Delay Time
(Reset)
t
WR
Pulse Width (reset)
5 to 10000
>15
ns
15
100
1000
0.1µF
t
r,
t
f
(TR) Rise or Fall Time (trigger)
Pulse Width Match Between
Circuits in Same Package
10
5 to 15
10000
200
80
60
1200
600
500
50
30
20
ns
µs
100
10
15
15
µs
%
(*) Typical temperature coefficient for all V
DD
value is 0.3 %/°C.
5/10
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