STMicroelectronics HCF4538B Dual monostable multivibrator Datasheet

HCC4538B
HCF4538B
DUAL MONOSTABLE MULTIVIBRATOR
.
.
.
..
..
..
.
..
RETRIGGERABLE/RESETTABLE
CAPABILITY
TRIGGER AND RESET PROPAGATION DELAYS INDEPENDENT OF RX, CX
TRIGGERING FROM LEADING OR TRAILING
EDGE
Q AND Q BUFFERED OUTPUTS AVAILABLE
SEPARATE RESETS
WIDE RANGE OF OUTPUT-PULSE WIDTHS
QUIESCENT CURRENT SPECIFIED TO 20V
FOR HCC DEVICE
5V, 10V, AND 15V PARAMETRIC RATINGS
SCHMITT TRIGGER INPUT ALLOWS UNLIMITER RISE AND FALL TIMES ON + TR AND
– TR INPUTS
INPUT CURRENT OF 100nA AT 18V AND 25°C
FOR HCC DEVICE
100% TESTED FOR QUIESCENT CURRENT
MEETS ALL REQUIREMENTS OF JEDEC TENTATIVE STANDARD N° 13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
EY
(Plastic Package)
F
(Ceramic Package)
M1
(Micro Package)
C1
(Chip Carrier)
ORDER CODES :
HCC4538BF
HCF4538BM1
HCF4538BEY
HCF4538BC1
DESCRIPTION
The HCC4538B (extended temperature range) and
HCF4538B (intermediate temperature range) are
monolithic integrated circuit, available in 16-lead
dual in-line plastic or-ceramic package and plastic
micro package. The HCC/HCF4538B dual precision
monostable multivibrator provides stable retriggerable/resettable one-shot operation for any fixedvoltage timing application. An external resistor (RX)
and an external capacitor (CX) control the timing and
accuracy for the circuit. Adjustment of RX and CX
provides a 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) are independent of RX
and CX. Precision control of output pulse widths is
achieved through linear CMOS techniques. 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 VSS. An unused – TR input should
be tied to VDD. A RESET (on low level) is provided
for immediate termination of the output pulse or to
September 1988
PIN CONNECTIONS
1/14
HCC/HCF4538B
prevent output pulses when power is turned on. An
unused RESET input should be tied to VDD. However, if an entire section of the HCC/HCF4538B is
not used, its inputs must be tied to either VDD or VSS
(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-retriggerable mode, Q is connected to – TR
when leading-edge triggering (+ TR) is used or Q is
connected to + TR when trailingedge triggering (–
TR) is used. The time period (T) for this multivibrator
can be calculated by : T = RX CX. The min. value of
external resistance, RX, is 4KΩ. The max. and min.
values of external capacitance, C X, are 100µF and
5nF, respectively.
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATING
Symbol
VDD *
Vi
Parameter
Supply Voltage: HCC Types
HCF Types
Input Voltage
II
DC Input Current (any one input)
± 10
mA
Ptot
Total Power Dissipation (per package)
Dissipation per Output Transistor
for Top = Full Package Temperature Range
200
mW
100
mW
Top
Operating Temperature: HCC Types
HCF Types
Storage Temperature
Tstg
Value
-0.5 to +20
-0.5 to +18
-0.5 to VDD + 0.5
Unit
V
V
V
-55 to +125
-40 to +85
-65 to +150
o
C
C
o
C
o
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress ratingonly and functional
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure
to absolute maximum rating conditions for external periods may affect device reliability.
* All voltage values are referred to VSS pin voltage.
RECOMMENDED OPERATING CONDITIONS
Symbol
VDD
VI
Top
2/14
Parameter
Supply Voltage: HCC Types
HCF Types
Input Voltage
Operating Temperature: HCC Types
HCF Types
Value
3 to 18
3 to 15
0 to VDD
-55 to +125
-40 to +85
Unit
V
V
V
o
o
C
C
HCC/HCF4538B
LOGIC DIAGRAM (1/2 of device shown)
TABLE 1: Functional Terminal Connections
VDD to Term. NO
VSS to Term. NO
Input Pulse to
Term. No
Mono
(1)
Mono
(2)
Mono
(1)
Mono
(1)
Mono
(2)
Leading-Edge
Trigger/Retriggerable
3, 5
11, 13
4
12
Leading-Edge
Trigger/Non-retriggerable
Trailing-Edge
Trigger/Retriggerable
3
13
4
12
3
13
5
11
Trailing-Edge
Trigger/Non-retriggerable
3
13
5
11
Function
4
Mono
(2)
12
Other
Connections
Mono
(1)
Mono
(2)
5, 7
11, 9
4, 6
12, 10
Notes : 1. 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.
2. A Non-retriggerable one-shot multivibrator has a time period (T) referenced from the application of the first trigger pulse.
Pulse Width
3/14
HCC/HCF4538B
STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions)
Test Conditios
Symbol
IL
Parameter
Quiescent
Current
HCC
Types
HCF
Types
V OH
VOL
Output High
Voltage
Output Low
Voltage
VI
(V)
VO
(V)
V IL
IOH
HCF
Types
IOL
Output
Sink
Current
HCC
Types
HCF
Types
IIH, IIL
CI
Input Leakage
Current
Input Capacitance
25 oC
Min. Typ. Max.
THIGH *
Min. Max.
5
0.04
5
150
0/10
0/15
10
15
10
20
0.04
0.04
10
20
300
600
0/20
20
100
0.08
100
3000
0/5
5
5
0.04
5
150
0/10
10
10
0.04
10
300
0/15
0/5
20
4.95
4.95
0.04
5
20
<1
15
5
0/10
<1
10
9.95
9.95
10
0/15
5/0
<1
<1
15
5
14.95
14.95
15
10/0
<1
10
0.5/4.5
<1
<1
15
5
3.5
3.5
3.5
1/9
<1
10
7
7
7
1.5/13.5
4.5/0.5
<1
<1
15
5
11
9/1
<1
10
13.5/1.5
2.5
<1
0/5
15
5
-2
-1.6
-3.2
-1.15
0/5
4.6
5
-0.64
-0.51
-1
-0.36
0/10
0/15
9.5
13.5
10
15
-1.6
-4.2
-1.3
-3.4
-2.6
-6.8
-0.9
-2.4
0/5
2.5
5
-1.8
-1.6
-3.2
-1.3
0/5
0/10
4.6
9.5
5
10
-0.61
-1.5
-0.51
-1.3
-1
-2.6
-0.42
-1.1
0/15
13.5
15
-4
-3.4
-6.8
-2.8
0/5
0/10
0.4
0.5
5
10
0.64
1.6
0.51
1.3
1
2.6
0.36
0.9
0/15
1.5
15
4.2
3.4
6.8
2.4
0/5
0/10
0.4
0.5
5
10
0.61
1.5
0.51
1.3
1
2.6
0.42
1.1
0/15
1.5
15
3.6
3.4
6.8
2.8
0/18
Any Input
18
Input Low
Voltage
HCC
Types
TLOW *
Min. Max.
5
Input High
Voltage
Output
Drive
Current
|IO| VDD
(µA) (V)
0/5
15/0
VIH
Value
Any Input
600
14.95
0.05
0.05
0.05
0.05
0.05
11
V
0.05
V
11
1.5
1.5
1.5
3
3
3
4
4
±10-5
±0.1
5
7.5
V
4
* TLOW = -55 oC for HCC device: -40 oC for HCF device.
* THIGH = +125 oC for HCC device: +85 oC for HCF device.
The Noise Margin for both ”1” and ”0” level is: 1V min. with VDD = 5 V, 2 V min. with VDD = 10 V, 2.5 V min. with VDD = 15 V
4/14
V
9.95
0.05
±0.1
µA
4.95
0.05
0.05
Unit
mA
mA
±1
µA
pF
HCC/HCF4538B
DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25 o C, C L = 50 pF, RL = 200 KΩ,
o
typical temperature coefficent for all VDD values is 03 %/ C, all input rise and fall times= 20 ns)
Symbol
Parameter
tTLH
tTHL
Transition Time
tPLH
tPHL
Propagation Delay Time
+TR or -TR to Q or Q
tPLH
tPHL
Propagation Delay Time
Reset to Q or Q
tWH
tWL
Minimum Input Pulse Width
+TR, -TR or Reset
tWT
Output Pulse Width - Q or Q
(CX = 0.005 µF, RX = 10 KΩ *)
tWT
Output Pulse Width - Q or Q
(CX = 0.1 µF, RX = 100 KΩ)
tWT
tW
trr
CIN
Output Pulse Width - Q or Q
(CX = 10 µF, RX = 100 KΩ)
Pulse Width Match Between 100 (T − T )
1
2
Circuits in Same Package:
T1
(CX = 0.1 µF, RX = 100 KΩ)
Minimum Retrigger Time
Input Capacitance
Test Conditions
VDD (V)
5
10
15
5
10
15
RL = 1KΩ
5
10
15
RL = 1KΩ
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
Any
Input
Min.
57
55
55
9.4
9.4
9.5
0.95
0.95
0.96
Value
Typ.
100
50
40
300
150
100
250
125
95
80
40
30
60.6
58.9
59.1
9.97
9.95
10.00
1.00
1.00
1.00
±1
±1
±1
Max.
200
100
80
600
300
220
500
250
190
140
80
60
64.5
63.0
63.5
10.5
10.6
10.6
1.06
1.06
1.07
Unit
ns
ns
ns
ns
µs
ms
s
%
0
0
0
ns
5
7.5
pF
* Minimum RX value = 4 KΩ, minimum CX value = 500 pF
5/14
HCC/HCF4538B
Typical Output Low (sink) Current Characteristics
Minimum Output Low (sink) Current Characteristics
Typical Output High (source) Current Characteristics
Minimum Output High (source) Current Characteristics
Typical Propagation Delay Time as a Function of
Load Capacitance (+TR or -TR to Q or Q)
Typical Propagation Delay TIme as a Function of
Load Capacitance (RESET to Q or Q)
6/14
HCC/HCF4538B
Typical Transition Time as a Function of Load
Capacitance
Typical Pulse Width Variation as a Function of
Supply Voltage
Typical Pulse Width Variation as a Function of
Temperature
Typical Pulse Width Variation as a Function of
Temeprature
Typical Total Supply Current as a Function of
Output Duty Cycle
7/14
HCC/HCF4538B
Power Down Mode
During a rapid power-down conditiona, as would
occur with a power supply short circuit or with a
poorly filtered power supply, the energy stored in CX
could discharge into Pin 2 or 14. To Avoid possible
device damage in this mode, when CX is ≤0.5 microfarad, a aprotection diode with a 1 Ampere or higher
rating (1N5395 or equivalent) and a separate
ground return for C X should be provided as shown
in Fig. 1
An alternate protection method is shown in Fig. 2,
where a 51 Ω current limit resistor is inserted in
series with CX. Note that a small pulse width decrease will occour however, and RX must be appropriately increased to obtain the originally desired
pulse width.
Figure 1: rapid Power Down Protection Circuit
Figure 2: Alternate rapid Power Down Protection
Circuit
8/14
HCC/HCF4538B
TEST CIRCUITS
Quiescent Device Current.
Noise Immunity.
Input Leakage Current.
9/14
HCC/HCF4538B
Plastic DIP16 (0.25) MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
0.77
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
0.130
1.27
0.050
P001C
10/14
HCC/HCF4538B
Ceramic DIP16/1 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
20
0.787
B
7
0.276
D
E
3.3
0.130
0.38
e3
0.015
17.78
0.700
F
2.29
2.79
0.090
0.110
G
0.4
0.55
0.016
0.022
H
1.17
1.52
0.046
0.060
L
0.22
0.31
0.009
0.012
M
0.51
1.27
0.020
0.050
N
P
Q
10.3
7.8
8.05
5.08
0.406
0.307
0.317
0.200
P053D
11/14
HCC/HCF4538B
SO16 (Narrow) MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.004
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
E
5.8
10
0.385
6.2
0.228
0.393
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
P013H
12/14
HCC/HCF4538B
PLCC20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
9.78
10.03
0.385
0.395
B
8.89
9.04
0.350
0.356
D
4.2
4.57
0.165
0.180
d1
2.54
0.100
d2
0.56
0.022
E
7.37
8.38
0.290
0.330
e
1.27
0.050
e3
5.08
0.200
F
0.38
0.015
G
0.101
0.004
M
1.27
0.050
M1
1.14
0.045
P027A
13/14
HCC/HCF4538B
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
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