MC141535 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC141535 Datasheet PDF : 26 Pages
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ELECTRICAL CHARACTERISTICS (Voltage Referenced to VSS, AVDD=DVDD=2.4 to 3.15V, TA=25˚C)
Total variation of VR ∆VRT is affected by ther following factors :
Process varition of Regulator ∆VR
External VDD Variation contributed to Regulator ∆VVDD
External resistor pair Ra/Rf contributed to Regulator ∆Vres
where ∆V RT = (∆V R)2 + (∆V V DD)2 + (∆V res)2
Assume external VDD varition is +/-6% at 3.15V and 1% varition resistor used at application.
TC Level
∆VVDD (%)
∆VR (%)
TC0
Reference
TC1
Generator
TC2
TC3
±6.0
±4.0
±2.5
±2.5
±1.4
∆Vres (%)
±1.414
∆VRT (%)
±6.652
±4.924
±3.805
±3.195
AC ELECTRICAL CHARACTERISTICS (TA=25˚C, Voltage referenced to VSS, VDD=2.4 to 3.15V)
Symbol
Parameter
Test Condition
FOSC1
FANN1
FFRM1
FANN2
FFRM2
Oscillation Frequency.
Normal Display Frequency Selected
Oscillation Frequency of Display Timing Generator
with 60Hz Frame Frequency.
Annunciator Display Frequency (with 50% duty
cycle) from Pins Annun0-3 and BP
LCD Driving Signal Frame Freqency.
Graphic or Icon Display Mode.
Oscillation Frequency.
Slow Display Frequency Selected
Annunciator Display Frequency (with 50% duty
cycle) from Pins Annun0-3 and BP With Low Dis-
play Frequency Enabled
LCD driving Signal Frame Freqency. (Graphic or
Icon Display Mode With Low Display Frequency
Enabled.)
OSC
Internal Oscillation Frequency
Internal OSC Oscillation Frequency with Different
Value of Feedback Resistor. (Internal Oscillator
Enabled. VDD within Operation Range.)
280k
Min
Typ
Max Unit
-
38.4
-
kHz
-
18.75
-
Hz
-
60
-
Hz
-
9.375
-
Hz
-
30
-
Hz
See Figure 1 for the relationship
260k
90k
70k
Oscillation
Frequency 50k
(Hz)
30k
10k
100k
500k
1.0M
1.5M
2.0M
Resistor Value between OSC1 and OSC2 (Ω)
Figure 1. Internal Oscillator Frequency Relationship with External Resistor Value
MC141535
3–78
MOTOROLA
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