mc14538bd ON Semiconductor, mc14538bd Datasheet

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mc14538bd

Manufacturer Part Number
mc14538bd
Description
Dual Precision Retiggerable/resettable Monostable Multivibrator
Manufacturer
ON Semiconductor
Datasheet
1.MC14538BD.pdf (12 pages)

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MC14538B
Dual Precision
Retriggerable/Resettable
Monostable Multivibrator
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, C
Features
•
•
•
•
•
•
•
•
•
•
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. Temperature Derating:
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this
high−impedance circuit. For proper operation, V
to the range V
(e.g., either V
MAXIMUM RATINGS
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 7
Symbol
V
I
The MC14538B is a dual, retriggerable, resettable monostable
R
C
in
This device contains protection circuitry to guard against damage due to high
Unused inputs must always be tied to an appropriate logic voltage level
Schottky TTL Load Over the Rated Temperature Range
Supplies Up to 6 V
in
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 Negative−Going Edge (B−Input)
Capable of Driving Two Low−Power TTL Loads or One Low−Power
Pin−for−pin Compatible with MC14528B and CD4528B (CD4098)
Use the MC54/74HC4538A for Pulse Widths Less Than 10 ms with
Pb−Free Packages are Available*
V
T
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
P
, V
, I
T
T
X
X
stg
DD
A
D
L
out
= Farads
= W
out
DC Supply Voltage Range
Input or Output Voltage Range
(DC or Transient)
Input or Output Current
(DC or Transient) per Pin
Power Dissipation, per Package
(Note 1)
Operating Temperature Range
Storage Temperature Range
Lead Temperature
(8−Second Soldering)
SS
SS
or V
X
v (V
and R
DD
in
). Unused outputs must be left open.
Parameter
or V
(Voltages Referenced to V
X
. Output Pulse Width T = R
out
) v V
DD
.
in
and V
−0.5 to V
SS
−0.5 to +18.0
−55 to +125
−65 to +150
out
)
Value
±10
500
260
should be constrained
X
DD
@ C
+ 0.5
X
(secs)
1
Unit
mW
mA
°C
°C
°C
V
V
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
ORDERING INFORMATION
A
WL, L
YY, Y
WW, W
G
http://onsemi.com
CASE 751B
CASE 948F
DT SUFFIX
DW SUFFIX
CASE 751G
TSSOP−16
SOEIAJ−16
D SUFFIX
CASE 648
SOIC−16
CASE 966
P SUFFIX
F SUFFIX
PDIP−16
SOIC−16
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Indicator
Publication Order Number:
16
1
16
1
16
16
1
16
1
DIAGRAMS
MARKING
MC14538BCP
1
AWLYYWWG
AWLYWW
AWLYYWW
MC14538B
14538BG
MC14538B/D
14538BG
ALYWG
ALYW
538B
14

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mc14538bd Summary of contents

Page 1

... See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. and V should be constrained in out *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 1 http://onsemi.com MARKING DIAGRAMS 16 PDIP−16 ...

Page 2

... ORDERING INFORMATION Device MC14538BCP MC14538BCPG MC14538BD MC14538BDG MC14538BDR2 MC14538BDR2G MC14538BDW MC14538BDWR2 MC14538BDWR2G MC14538BDTR2 MC14538BF MC14538BFG MC14538BFEL MC14538BFELG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free. ...

Page 3

ELECTRICAL CHARACTERISTICS Î Î Î Î Î ...

Page 4

SWITCHING CHARACTERISTICS (Note 4) Î Î Î ...

Page 5

(14 ref1 X (15 (12 (11 (13) RESET V DD 500 ′ ...

Page 6

50% RESET t PLH T t PLH 50% 50% 50 PHL PHL Q 50% 50 25° POINT PULSE WIDTH R = 100 0.1 ...

Page 7

R = 100 0 −1 −2 −60 −40 − AMBIENT TEMPERATURE (°C) A Figure 8. Typical Error of Pulse Width Equation versus Temperature 1 A ...

Page 8

TRIGGER OPERATION The block diagram of the MC14538B is shown in Figure 1, with circuit operation following. As shown in Figure 1 and 10, before an input trigger occurs, the monostable is in the quiescent state with the Q output ...

Page 9

RISING−EDGE V DD TRIGGER RESET = FALLING−EDGE TRIGGER RESET = V DD Figure 12. Retriggerable Monostables Circuitry ...

Page 10

0.25 (0.010) M −A− −B− −T− SEATING PLANE 0.25 (0.010 MC14538B PACKAGE DIMENSIONS ...

Page 11

16X 0. 14X K 16X REF 0.10 (0.004) 0.15 (0.006 L PIN 1 IDENT. 1 0.15 (0.006 ...

Page 12

... DETAIL P VIEW American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 12 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. ...

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