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CD4541 Datasheet Preview

CD4541 Datasheet

PROGRAMMABLE TIMER CMOS IC

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UNISONIC TECHNOLOGIES CO., LTD
CD4541
PROGRAMMABLE TIMER
DESCRIPTION
The CD4541 programmable timer comprise a 16-stage
binary counter, an integrated oscillator for use with an external
capacitor and two resistors, output control logic, and a special
power-on reset circuit. The counter divides the oscillator
frequency by any of 4 digitally controlled division ratios.
FEATURES
* Operates at 2n frequency divider or as single transition timer
* Increments on positive edge clock transitions
* Wide supply voltage range: 3.0V ~ 15V
* Built-in low power RC oscillator
* Oscillator frequency range ~ DC to 100 kHz
* External clock applied to Pin 3 can be used instead of
* oscillator
* Available division ratios 28, 210, 213, or 216
* High noise immunity: 0.45 VDD (typ)
* Master reset totally independent of automatic reset operation
* Automatic reset initializes all counters when power turns on
* Q/Q select provides output logic level flexibility
* High output drive min. one TTL load
* Maximum input leakage 1μA at 15V over full temperature
* range
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
CD4541-D14-T
CD4541L-D14-T
- CD4541L-S14-R
- CD4541L-P14-T
Package
DIP-14
SOP-14
TSSOP-14
CMOS IC
Packing
Tube
Tape Reel
Tube
MARKING
DIP-14
SOP-14 / TSSOP-14
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-037.D




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CD4541 Datasheet Preview

CD4541 Datasheet

PROGRAMMABLE TIMER CMOS IC

No Preview Available !

CD4541
PIN CONFIGURATION
RTC
CTC
RS
N.C.
AR
MR
VSS
1
2
3
4
5
6
7
14 VDD
13 B
12 A
11 N.C.
10 MODE
9 Q/Q SELECT
8Q
CMOS IC
TRUTH TABLE
PIN 0
5 Auto Reset Operating
6 Timer Operational
9 Output Initially Low after Reset
10 Single Cycle Mode
DIVISION RATIO TABLE
AB
00
01
10
11
Number of Counter Stages
n
13
10
8
16
BLOCK DIAGRAM
STATE
1
Auto Reset Disabled
Master Reset On
Output Initially High after Reset
Recycle Mode
Count
2n
8192
1024
256
65536
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 7
QW-R502-037.D


Part Number CD4541
Description PROGRAMMABLE TIMER CMOS IC
Maker UTC
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