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
http://onsemi.com
MARKING
DIAGRAMS
components, C and R .
X
X
16
PDIP–16
P SUFFIX
CASE 648
Output Pulse Width = (Cx) (Rx) where:
Rx is in k
Cx is in F
MC14538BCP
AWLYYWW
1
16
• Unlimited Rise and Fall Time Allowed on the A Trigger Input
• Pulse Width Range = 10 µs to 10 s
• Latched Trigger Inputs
SOIC–16
D SUFFIX
CASE 751B
14538B
AWLYWW
1
16
• Separate Latched Reset Inputs
• 3.0 Vdc to 18 Vdc Operational Limits
• Triggerable from Positive (A Input) or Negative–Going Edge
(B–Input)
TSSOP–16
DT SUFFIX
CASE 948F
14
538B
ALYW
1
16
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
• Pin–for–pin Compatible with MC14528B and CD4528B (CD4098)
14538B
SOIC–16
DW SUFFIX
CASE 751G
AWLYYWW
• Use the MC54/74HC4538A for Pulse Widths Less Than 10 µs with
1
Supplies Up to 6 V.
16
SOEIAJ–16
F SUFFIX
CASE 966
MC14538B
AWLYWW
MAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)
SS
Symbol
Parameter
Value
Unit
V
1
A
= Assembly Location
V
DD
DC Supply Voltage Range
–0.5 to +18.0
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
V , V
in out
Input or Output Voltage Range
(DC or Transient)
–0.5 to V + 0.5
V
DD
I , I
in out
Input or Output Current
(DC or Transient) per Pin
±10
mA
ORDERING INFORMATION
Device
Package
PDIP–16
SOIC–16
Shipping
P
Power Dissipation,
per Package (Note 3.)
500
mW
D
MC14538BCP
MC14538BD
2000/Box
48/Rail
T
A
Operating Temperature Range
Storage Temperature Range
–55 to +125
–65 to +150
260
°C
°C
°C
T
stg
MC14538BDR2
MC14538BDT
SOIC–16 2500/Tape & Reel
TSSOP–16 96/Rail
T
Lead Temperature
(8–Second Soldering)
L
2. Maximum Ratings are those values beyond which damage to the device
may occur.
MC14538BDTR2 TSSOP–16 2500/Tape & Reel
3. Temperature Derating:
MC14538BDW
SOIC–16
47/Rail
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
MC14538BDWR2
MC14538BF
SOIC–16 1000/Tape & Reel
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
SOEIAJ–16
SOEIAJ–16
See Note 1.
See Note 1.
MC14538BFEL
high–impedancecircuit. For proper operation, V and V should be constrained
in
out
to the range V
(V or V
)
V
.
SS
in
out
DD
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either V or V ). Unused outputs must be left open.
SS
DD
Semiconductor Components Industries, LLC, 2000
1
Publication Order Number:
March, 2000 – Rev. 3
MC14538B/D