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MC141803T bảng dữ liệu(PDF) 6 Page - Motorola, Inc

tên linh kiện MC141803T
Giải thích chi tiết về linh kiện  LCD Segment / Common Driver with Controller CMOS
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nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
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MOTOROLA
3–318
MC141803
ELECTRICAL CHARACTERISTICS (Voltage Referenced to VSS, AVDD=DVDD=2.4 to 3.5V, TA=25˚C)
Total variation of VR
∆V
RT is affected by the following factors :
Process variation of Regulator
∆V
R
External VDD Variation contributed to Regulator ∆VVDD
External resistor pair Ra/Rf contributed to Regulator
∆V
res
where
Assume external VDD variation is ±6% at 3.15V and 1% variation resistor used at application
TC Level
∆V
VDD (%)
∆V
R (%)
∆V
res (%)
∆V
RT (%)
Reference
Generator
TC0
TC1
TC2
TC3
±6.0
±4.0
±2.5
±1.4
±2.5
±1.414
±6.652
±4.924
±3.805
±3.195
V
RT
V
R
()
2
V
V
DD
()
2
V
res
()
2
++
=
AC ELECTRICAL CHARACTERISTICS (TA=25˚C, Voltage referenced to VSS, VDD=2.4 to 3.15V)
Set Clock Frequency to Slow : FFRM1=FOSC1/576
Set Clock Frequency to Normal : FFRM2=FOSC2/768
Symbol Parameter
Test Condition
Min
Typ
Max
Unit
FOSC1
FANN1
FFRM1
FCON1
Oscillation Frequency.
Oscillation Frequency of Display Timing Generator
with 60Hz Frame Frequency.
Annunciator Display (50% duty cycle) from Pins
Annun0-3 and BP
LCD Driving Signal Frame Frequency.
LCD Driving Signal Frame Frequency.
Set Clock Frequency to Slow
Either External Clock Input or Internal Oscillator
Enable, Either 1/32 or 1/16 Duty Cycle, Graphic
Display Mode.
Either External Clock Input or Internal Oscillator
Enable, 1/33 Duty Cycle, Graphic Display Mode.
-
-
-
-
38.4
18.75
66
64
-
-
-
-
kHz
Hz
Hz
Hz
Fosc2
FANN2
FFRM2
FCON2
Oscillation Freq.
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 Frequency.
LCD driving Signal Frame Frequency.
Set Clock Frequency to Normal
Either External Clock Input or Internal Oscillator
Enable, Either 1/32 or 1/16 Duty Cycle.
Either External Clock Input or Internal Oscillator
Enable, 1/33 Duty Cycle.
-
-
-
-
50
24.4
65
63
-
-
-
-
kHz
Hz
Hz
Hz
OSC
Internal Oscillation Frequency
Internal OSC Oscillation Frequency with Different
Value of Feedback Resistor.
Internal Oscillator Enabled. VDD within Operation
Range.
See Figure 1 for the relationship


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