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MC9S08LC60 Datasheet, PDF (167/358 Pages) Freescale Semiconductor, Inc – Microcontrollers
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Liquid Crystal Display Driver (S08LCDV1)
NOTE:
Contrast control configuration when
LCD is powered using external VLCD
This is the recommended configuration
for contrast control.
VLCD specified between 0.9 and 1.8
volts.
9S08LC60
FP[40:0]
BP[3:0]
VLCD
VLL3
VLL2
VLL1
LCD GLASS PANEL
LCD Power Pins
CBYLCD
Vcap1
Vcap2
CLCD
LCD charge pump capacitance
Figure 9-23. Power Connections for Contrast Control
LCD Power Supply
R
9.6.3 LCD Power Consumption
The following tables show relative power consumption from VDD for the different modes available for the
LCD module.
Table 26. Relative Power Consumption, 5 V
Mode
Typical Voltage
LCD Display Voltage
Range
VDD Supply
Range
VDD Current
Consumption Level
VLL2 connect to VDD
VDD = 3.333 V
VDD = 3 V ~ 3.6 V
3 V ~ 3.6 V
low
Tripler Buffered Mode
VLCD = 1.6667 V VLCD = 1.5 V ~ 1.8 V
2.4 V ~ 3.6 V
high
Tripler Bypassed Mode
VLCD = 1.6667 V VLCD = 1.5 V ~ 1.8 V
1.8 V ~ 3.6 V
lowest
Note: Current consumption data based on using the external 32-kHz oscillator with LCD configured using the low-power wave
forms option, a 1/4 duty, and a 32-Hz frame frequency. CLCD = CBYLCD = 100 nF; 160 segment 2000 pF LCD panel.
Table 27. Relative Power Consumption, 3 V
Mode
Typical Voltage
LCD Display Voltage
Range
VDD Supply
Range
VDD Current
Consumption Level
VLL2 connect to VDD
VDD = 2 V
VDD = 1.8 V ~ 2.2 V
1.8 V ~ 2.2 V
high
Tripler Buffered Mode
VLCD = 1 V
VLCD = 0.9 V ~ 1.1 V
2.0 V ~ 3.6 V
highest
Tripler Bypassed Mode
VLCD = 1 V
VLCD = 0.9 V ~ 1.1 V
1.8 V ~ 3.6 V
lowest
VLL3 connect to VDD
VDD = 3 V
VDD = 2.7 V ~ 3.3 V
2.7 V ~ 3.3 V
low
Doubler Buffered Mode
VLCD = 1.5 V
VLCD = 1.35 V ~ 1.65 V 2.4 V ~ 3.6 V
highest
Note: Current consumption data based on using the external 32-kHz oscillator with LCD configured using the low-power wave
forms option, a 1/4 duty, and a 32-Hz frame frequency. CLCD = CBYLCD = 100 nF; 160 segment 2000 pF LCD panel.
MC9S08LC60 Series Advance Information Data Sheet, Rev. 2
Freescale Semiconductor
PRELIMINARY
167
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