PTC PT6315 - Page 21

Tel : 886-2-29162151
Fax: 886-2-29174598
VFD Driver/Controller IC PT6315
PT6315 v2.0 Page 21 Sep. 2002
APPLICATION CIRCUIT 1
44 PIN LQFP
Figure 18: PT6315 LQFP Applicaiton Circuit
Note: The capacitor (0.1uF) connected between the GND and the VDD pins must be located as close
as possible to the PT6315 chip.
12
13 14
15
16
17 18 19 20
21 22
23
24
25
26
27
28
29
30
31
32
33
34
3536
37
3839
4041
42
4344
MCU
Vcc
S19 S18 S17 S16 S15 S14 S13 S12 S11 S10S9 S8 S7 S6 S5 S4 S3 S2 S1
G9 G8 G7 G6 G5 G4 G3 G2G2 G1
9-GRID X 19-SEGMENT VFD
10K
330
330
330
330
100K
Vcc
-VEE
10K
10K
PT6315
VCC
1N4148 x 16
0.1 F