RC oscillator application
V DD
470p.
560kW
~1M W
O SC1
V DD
S E G 0~17
C O M 0~3
fS Y S /4
V DD
100kW
0 .1 m .
V LC D
O SC2
C1
C2
RES
H T 4 9 C 3 0 L V1
LC D
PANEL
0 .1 m .
0 .1 m .
0 .1 m .
HT49R30A-1/HT49C30-1/HT49C30L
Crystal oscillator application
200p.
200p.
O SC1
O SC2
S E G 0~17
C O M 0~3
V LC D
V DD
C1
100kW
C2
RES
0 .1 m .
H T 4 9 C 3 0 L V1
LC D
PANEL
0 .1 m .
0 .1 m .
0 .1 m .
O SC3
O SC4
IN T 0
IN T 1
TM R
V2
V DD
P A 0~P A 7
P B 0~P B 5
O SC3
O SC4
IN T 0
IN T 1
TM R
V2
V DD
P A 0~P A 7
P B 0~P B 5
32768Hz crystal oscillator application
O SC1
O SC2
S E G 0~17
C O M 0~3
V DD
100kW
10kW
0 .1 m .
V LC D
RES
C1
C2
H T49C 30L
V1
O SC3
V2
O SC4
IN T 0
P A 0~P A 7
IN T 1
TM R
P B 0~P B 5
LC D
PANEL
0 .1 m .
0 .1 m .
0 .1 m .
V DD
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. 1.10
24
September 25, 2002