Timers & Support Products LOG CMOS OSILATR TIMER

MC14541BD

Manufacturer Part NumberMC14541BD
DescriptionTimers & Support Products LOG CMOS OSILATR TIMER
ManufacturerON Semiconductor
TypeProgrammable
MC14541BD datasheet
 


Specifications of MC14541BD

Number Of Internal Timers1Supply Voltage (max)18 V
Supply Voltage (min)3 VMaximum Power Dissipation500 mW
Maximum Operating Temperature+ 125 CMinimum Operating Temperature- 55 C
Mounting StyleSMD/SMTPropagation Delay (max)18000 ns, 10000 ns, 7500 ns
Package / CaseSOIC-14Lead Free Status / RoHS StatusLead free / RoHS Compliant
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
Page 1/10

Download datasheet (187Kb)Embed
Next
MC14541B
Programmable Timer
The MC14541B programmable timer consists of a 16−stage binary
counter, an integrated oscillator for use with an external capacitor and
two resistors, an automatic power−on reset circuit, and output control
logic.
Timing is initialized by turning on power, whereupon the power−on
reset is enabled and initializes the counter, within the specified V
range. With the power already on, an external reset pulse can be
applied. Upon release of the initial reset command, the oscillator will
oscillate with a frequency determined by the external RC network. The
16−stage counter divides the oscillator frequency (f
n
stage frequency being f
/2
.
osc
Features
8
10
13
Available Outputs 2
, 2
, 2
or 2
Increments on Positive Edge Clock Transitions
Built−in Low Power RC Oscillator (± 2% accuracy over temperature
range and ± 20% supply and ± 3% over processing at < 10 kHz)
Oscillator May Be Bypassed if External Clock Is Available
(Apply external clock to Pin 3)
External Master Reset Totally Independent of Automatic Reset
Operation
n
Operates as 2
Frequency Divider or Single Transition Timer
Q/Q Select Provides Output Logic Level Flexibility
Reset (auto or master) Disables Oscillator During Resetting to
Provide No Active Power Dissipation
Clock Conditioning Circuit Permits Operation with Very Slow Clock
Rise and Fall Times
Automatic Reset Initializes All Counters On Power Up
Supply Voltage Range = 3.0 Vdc to 18 Vdc with Auto Reset
Supply Voltage Range =
Disabled (Pin 5 = V
Supply Voltage Range
= 8.5 Vdc to 18 Vdc with Auto Reset
Supply Voltage Range =
Enabled (Pin 5 = V
These are Pb−Free Devices
PIN ASSIGNMENT
R
1
tc
C
2
tc
R
3
S
NC
4
AR
5
MR
6
V
7
SS
NC = NO CONNECTION
© Semiconductor Components Industries, LLC, 2009
September, 2009 − Rev. 11
DD
th
) with the n
osc
16
)
DD
)
SS
14
V
DD
13
B
12
A
11
NC
10
MODE
9
Q/Q SEL
8
Q
1
http://onsemi.com
MARKING
DIAGRAMS
14
PDIP−14
MC14541BCP
P SUFFIX
AWLYYWWG
CASE 646
1
14
SOIC−14
14541BG
D SUFFIX
AWLYWW
CASE 751A
1
14
TSSOP−14
DT SUFFIX
ALYWG
CASE 948G
1
14
SOEIAJ−14
MC14541B
F SUFFIX
ALYWG
CASE 965
1
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W
= Work Week
G or G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Publication Order Number:
MC14541B/D
14
541B
G

MC14541BD Summary of contents

  • Page 1

    MC14541B Programmable Timer The MC14541B programmable timer consists of a 16−stage binary counter, an integrated oscillator for use with an external capacitor and two resistors, an automatic power−on reset circuit, and output control logic. Timing is initialized by turning on ...

  • Page 2

    ... Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C ORDERING INFORMATION Device MC14541BCPG MC14541BDG MC14541BDR2G MC14541BDTR2G MC14541BFG MC14541BFELG †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 5) Î Î Î ...

  • Page 5

    8-STAGE OSC C tc COUNTER R 3 RESET S RESET AUTO RESET POWER-ON 5 RESET 6 MASTER RESET V = PIN PIN 7 SS FREQUENCY ...

  • Page 6

    TYPICAL RC OSCILLATOR CHARACTERISTICS 8 4.0 - 8 10.15 kHz @ 120 kW 7.8 ...

  • Page 7

    −T− SEATING PLANE 0.13 (0.005) PACKAGE DIMENSIONS PDIP−14 CASE 646−06 ISSUE http://onsemi.com 7 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI ...

  • Page 8

    ... G −T− SEATING 14 PL PLANE 0.25 (0.010 14X 0.58 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. SOIC−14 CASE 751A−03 ISSUE 0.25 (0.010 ...

  • Page 9

    ... S A −V− C 0.10 (0.004) −T− G SEATING D PLANE 14X 0.36 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS TSSOP−14 CASE 948G−01 ISSUE 0.25 (0.010) ...

  • Page 10

    ... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...