H49R50A-1 Datasheet, PDF (25/45 Pages) Holtek Semiconductor Inc – LCD Type 8-Bit MCU

For HT49C50L Application Circuit
HT49R50A-1/HT49C50-1/HT49C50L
V DD
100kW
0 .1 m F
O SC3
C O M 0~C O M 3
S E G 0~S E G 31
O SC4
V LC D
C1
C2
RES
V1
IN T 0
IN T 1
TM R 0
TM R 1
V2
P A 0~P A 7
P B 0~P B 7
P C 0~P C 3
H T49C 50L
LC D
PANEL
0 .1 m F
0 .1 m F
0 .1 m F
V DD
V DD
470pF
R O SC
fS Y S /4
200pF
O SC1
V DD
O SC2
O SC1
200pF
O SC2
R C S y s te m O s c illa to r
560kW < R OSC< 1M W
C r y s ta l S y s te m O s c illa to r
O SC1
O SC2
3 2 7 6 8 H z C ry s ta l S y s te m
O s c illa to r
O S C 1 a n d O S C 2 le ft
u n c o n n e c te d
O S C C ir c u it
Note: The resistance and capacitance for reset circuit should be designed in such a way as to ensure that the VDD is
stable and remains within a valid operating voltage range before bringing RES to high.
Rev. 2.00
25
November 29, 2005