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HBD-DZ340M/DZ640M/DZ840K/DZ840M/DZ940K
53
IC103 MM3404A33URE (IO Board)
IC206 PT6315 (PANEL Board)
VSS 2
VIN
4
VOUT
3
+
–
CURRENT
LIMIT
BIAS
VREF
CE 1
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
Segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
K1
K2
VSS
VDD
SG1
SG2
SG3
SG4
SG5
SG6
SG7
SG8
SG9
SG10
GR9
GR8
GR7
GR6
GR5
GR4
GR3
GR2
GR1
VDD
VSS
SG11
SG12
SG13
SG14
SG15
SG16
VEE
GR12
GR11
GR10