TATIVESTANDARDN°13A,”STANDARDSPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIESCMOS DEVICES”
HCC4538B
HCF4538B
EY
(PlasticPackage)
M1
(MicroPackage)
ORDER CODES :
HCC4 538BFHCF4538BM1
HCF4538BEYHCF4538BC1
(CeramicPackage)
(Chip Carrier)
F
C1
DESCRIPTION
TheHCC4538B (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
micropackage.TheHCC/HCF4538Bdualprecision
monostable multivibrator provides stable retriggerable/resettable one-shot operation for any fixedvoltage timing application. An external resistor (RX)
andanexternalcapacitor(CX) controlthetimingand
accuracy for the circuit. Adjustment of RXand C
provides a wide range of output pulse widths from
the Q and Q terminals. The timedelay from trigger
inputtooutput transition (trigger propagation delay)
and the time delayfrom reset input to output transition(resetpropagation delay)are independent ofR
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
eitheredge of aninput pulse. Anunused+TR input
shouldbe tiedto VSS. An unused– TRinput should
be tied to VDD. A RESET (on low level) is provided
for immediate termination of the output pulse or to
PIN CONNECTIONS
X
X
September 1988
1/14
HCC/HCF4538B
prevent output pulses when power is turnedon. An
unused RESET input should be tied to VDD. However, if an entire section of the HCC/HCF4538B is
not used,itsinputsmustbe tiedto eitherVDDor V
SS
(see table1).In normal operationthe circuittriggers
(extends the output pulse one period) on the applicationofeachnewtriggerpulse. Foroperation inthe
non-retriggerable mode, Q is connected to – TR
FUN CTIONAL DIAG R A M
whenleading-edge triggering (+TR) is used or Q is
connected to + TR when trailingedge triggering (–
TR)isused.Thetimeperiod(T) forthismultivibrator
can be calculated by : T = RXCX. The min. value of
externalresistance,RX,is4KΩ. The max. and min.
values of external capacitance, CX, are100µF and
5nF,respectively.
ABSOLU TE MAXIMU M RAT ING
SymbolParameterValueUnit
*Supply Voltage: HCC Types
V
DD
HCF Types
V
P
Input Voltage-0.5 to VDD+ 0.5V
i
I
DC Input Current (any one input)± 10mA
I
Total Power Dissipation (per package)
tot
-0.5 to +20
-0.5 to +18
200
V
V
mW
Dissipation per Output Transistor
for Top = Full Package Temperature Range
T
Operating Temperature: HCC Types
op
HCF Types
T
Stressesabove those listedunder”AbsoluteMaximum Ratings”maycausepermanent damagetothedevice.Thisisastressratingonlyand functional
operation of the device at these or any otherconditions above thoseindicated in theoperational sections of thisspecificationisnotimplied.Exposure
to absolute maximum ratingconditionsforexternal periods mayaffect device reliability.
* All voltagevalues are referred to VSSpinvoltage.
Storage Temperature-65 to +150
stg
100
-55 to +125
-40 to +85
mW
o
C
o
C
o
C
RECO MM ENDED OPERATIN G C O NDITIONS
SymbolParameterValueUnit
V
Supply Voltage: HCC Types
DD
HCF Types
V
T
Input Voltage0 to V
I
Operating Temperature: HCC Types
op
HCF Types
3to18
3to15
DD
-55 to +125
-40 to +85
V
V
V
o
C
o
C
2/14
LOGI C DIAGRAM (1/2 of device s hown)
HCC/HCF4538B
TABLE 1: F uncti onal Terminal C onnections
to Term. NOVSSto Term. NO
V
DD
Function
Mono
(1)
Leading-Edge
Trigger/Retriggerable
Leading-Edge
Trigger/Non-retriggerable
Trailing-Edge
Trigger/Retriggerable
Trailing-Edge
Trigger/Non-retriggerable
Notes : 1. A Retriggerable one-shot multivibrator has an outputpulsewidth which is extended onfulltime period(T)afterapplication of the last
triggerpulse.
2. A Non-retriggerable one-shot multivibratorhasa time period (T) referenced fromthe application of the first trigger pulse.
3, 511, 13412
3134125, 711, 9
313412511
3135114, 612, 10
Mono
(2)
Mono
(1)
Mono
(2)
Input Pulse to
Term. No
Mono
(1)
Mono
(2)
Other
Connections
Mono
(1)
Mono
(2)
Pulse Width
3/14
HCC/HCF4538B
STATI C ELECT RIC AL CHAR ACTER I STI CS (ov er recomm end ed op er a ting conditi ons)