PT6547LQ PTC [Princeton Technology Corp], PT6547LQ Datasheet - Page 26

• Manufacturer Part Number: PT6547LQ
• Description: LCD Driver IC with Key Input Function
• Manufacturer: PTC [Princeton Technology Corp]

LCD Driver IC with Key Input Function
APPLICATION CIRCUIT 2
1/3 DUTY 1/2 BIAS (FOR LARGE PANEL USE)
Notes:
1. A capacitor can be connected to the power supply line to make the power supply voltage
2. If the /RES pin is not used to initiate the System Reset Function, it must be connected VDD.
3. The DOUT pin is an open-drain output and therefore needs a pull-up resistor. This resistor be
PT6547 V1.2
VDD rise time (when power is applied) and the power supply voltage VDD fall time power
drops) are at least 1ms when PT6547 is reset via VDET.
between 1K to 10KΩ. The value of this resistor must be in accordance with that capacitance
of the external wiring so that the signal waveforms are in proper form.
( See N ot e 3)
VD D
10
10
12
13
14
15
16
17
18
19
20
22
23
24
25
11
21
5 .1K
5 .1K
5 .1K
5 .1K
2
3
4
5
6
7
8
9
1
SG1/P1
SG2/P2
SG3/P3
SG4/P4
SG5/P5
SG6/P6
SG7/P7
SG8/P8
S 9
S 10
S 11
S 12
S 13
SG 14
S 15
S 16
S 17
S 18
S 19
S 20
S 21
S 22
S 23
S 24
S 25
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
M CU
C
R
C
- 26 -
P
R
5V
T6547
LCD P anel
+ 5V
1 0 K >R 1 K
C 0. 04 7 F
>
( See N ot e 1)
LQ
>
C OM4/SG74
COM3
S 73
S 72
S 70
S 69
S 68
S 67
S 66
S 65
S 64
S 63
S 62
S 60
S 59
S 58
S 57
S 56
S 55
S 54
S 53
S 52
S 71
S 61
S 51
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
URL: http://www.princeton.com.tw
Fax: [phone]
Tel: [phone]
January, 2006
PT6547