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IC BLOCK DIAGRAM & DESCRIPTION
IC601 PT6315 (VFD Driver / Controller IC)
7
DIN
Serial
6
DOUT
Data
CLK
8
Interface
STB
9
OSC
5
OSC
1
LED1
LED
2
LED2
Driver
3
LED3
LED4
4
IC651 TMP87EP26F-4K76 (Micro Controller)
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
COM1
COM0
VLC
PD0
PD1
PD2
VDD
Control
Display Memory
(24 bits x 17 Words)
TI~inc Generator
Key Moter Memory
10
11
K1
K2
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Driving Circuit
13
30
VDD
GND
VEE
- 14 -
14
SG1/KS1
15
SG2/KS2
16
SG3/KS3
17
SG4/KS4
18
SG5/KS5
19
SG6/KS6
20
SG7/KS7
Segment
Driver
21
SG8/KS8
22
SG9/KS9
Grid
23
Driver
SG10/KS10
24
SG11/KS11
Key Scan
25
SG12/KS12
Output
26
SG13/KS13
27
SG14/KS14
28
SG15/KS15
30
SG16/KS16
31
SG17/GR12
32
SG18/GR11
33
SG19/GR10
34
SG20/GR9
35
SG21/GR8
36
SG22/GR7
37
SG23/GR6
38
SG24/GR5
42
GR1
41
GR2
Grid
Driver
GR3
40
GR4
39
VSS
50
BOOT
49
VAREF
48
P57(AIN7)
47
P56(AIN6)
46
P55(AIN5)
45
P54(AIN4)
44
P53(AIN3)
43
P52(AIN2)
42
P51(AIN1)
41
P50(AIN0)
40
P36
39
P35
38
P34
37
P33
36
P32
35
P31
34
P30
33
P17
32
P16
31
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