Holtek TinyPower HT69F40A Manual page 179

HT69F30A/HT69F40A/HT69F50A
TinyPower I/O Flash 8-Bit MCU with LCD & EEPROM
TM
D u r i n g R e s e t o r L C D F u n c t i o n i s s w i t c h e d o f f
C O M 0 , C O M 1 , C O M 2 , C O M 3
A l l s e g m e n t o u t p u t s
L C D F u n c t i o n i n N o r m a l O p e r a t i o n M o d e
Note: For 1/3 R type bias, the V
Rev. 1.20
C O M 0
C O M 1
C O M 2 
A l l s e g m e n t s O F F
C O M 0 s e g m e n t s O N
C O M 1 s e g m e n t s O N
C O M 2 s e g m e n t s O N
C O M 0 , 1 s e g m e n t s O N
C O M 0 , 2 s e g m e n t s O N
C O M 1 , 2 s e g m e n t s O N
A l l s e g m e n t s O N
LCD Driver Output – Type A- 1/3 Duty, 1/3 Bias
=V
A LCD
For 1/3 C type bias, V =V ×1.5, V
A LCD
179
R t y p e b i a s
C t y p e b i a s
R t y p e b i a s
C t y p e b i a s
1 F r a m e
, V =V ×2/3 and V =V ×1/3.
B LCD C LCD
=V and V =V ×1/2.
B LCD C LCD
V
L C D
V
S S
V
L C D
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
V
A
V
B
V
C
V
S S
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