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LP55231 Datenblatt(PDF) 7 Page - Texas Instruments

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Teilenummer LP55231
Bauteilbeschribung  LP55231 Programmable 9-Output LED Driver
PDF  53 Pages
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP55231 Datenblatt(HTML) 7 Page - Texas Instruments

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LP55231
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SNOSCR5 – MARCH 2013
RECOMMENDED EXTERNAL CLOCK SOURCE CONDITIONS
(1) (2)
Symbol
Parameter
Condition
Min
Typ
Max
Units
Logic input CLK
fCLK
Clock Frequency
32.7
kHz
tCLKH
High Time
6
µs
tCLKL
Low Time
6
µs
tr
Clock Rise Time
10% to 90%
2
µs
tf
Clock Fall Time
90% to 10%
2
µs
(1)
Specification is verified by design and is not tested in production. VEN = 1.65V to VDD.
(2)
The ideal external clock signal for the LP55231 is a 0V to VEN 25% to 75% duty-cycle square wave. At frequencies above 32.7 kHz,
program execution will be faster, and at frequencies below 32.7 kHz program execution will be slower.
Figure 1. External Clock Signal
Copyright © 2013, Texas Instruments Incorporated
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