
Semiconductor Components Industries, LLC, 2013
May, 2013 Rev. 10
1
Publication Order Number:
MC14538B/D
MC14538B
Dual Precision
Retriggerable/Resettable
Monostable Multivibrator
The MC14538B is a dual, retriggerable, resettable monostable
multivibrator. It may be triggered from either edge of an input pulse,
and produces an accurate output pulse over a wide range of widths, the
duration and accuracy of which are determined by the external timing
components, CX and RX. Output Pulse Width T = RX @ CX (secs)
RX = W
CX = Farads
Features
Unlimited Rise and Fall Time Allowed on the A Trigger Input
Pulse Width Range = 10 ms to 10 s
Latched Trigger Inputs
Separate Latched Reset Inputs
3.0 Vdc to 18 Vdc Operational Limits
Triggerable from Positive (A Input) or NegativeGoing Edge (BInput)
Capable of Driving Two LowPower TTL Loads or One LowPower
Schottky TTL Load Over the Rated Temperature Range
Pinforpin Compatible with MC14528B and CD4528B (CD4098)
Use the MC54/74HC4538A for Pulse Widths Less Than 10 ms with
Supplies Up to 6 V
NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECQ100
Qualified and PPAP Capable
These Devices are PbFree and are RoHS Compliant
MAXIMUM RATINGS (Voltages Referenced to VSS)
Symbol
Parameter
Value
Unit
VDD
DC Supply Voltage Range
0.5 to +18.0
V
Vin, Vout Input or Output Voltage Range
(DC or Transient)
0.5 to VDD + 0.5
V
Iin, Iout
Input or Output Current
(DC or Transient) per Pin
±10
mA
PD
Power Dissipation, per Package
500
mW
TA
Operating Temperature Range
55 to +125
°C
Tstg
Storage Temperature Range
65 to +150
°C
TL
Lead Temperature
(8Second Soldering)
260
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
1. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_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
highimpedance circuit. For proper operation, Vin and Vout should be constrained
to the range VSS v (Vin or Vout) v 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.
http://onsemi.com
MARKING
DIAGRAMS
PDIP16
P SUFFIX
CASE 648
MC14538BCP
AWLYYWWG
SOIC16WB
DW SUFFIX
CASE 751G
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
G or G
= PbFree Indicator
SOEIAJ16
F SUFFIX
CASE 966
MC14538B
ALYWG
See detailed ordering and shipping information in the package
dimensions section on page
2 of this data sheet.
ORDERING INFORMATION
16
1
16
14538BG
AWLYYWW
16
1
SOIC16
D SUFFIX
CASE 751B
TSSOP16
DT SUFFIX
CASE 948F
14538BG
AWLYWW
1
16
14
538B
ALYWG
G
1
16
(Note: Microdot may be in either location)