20
DHT-500SD
LC75725E(FR:IC91)
Function
Power supply pin to driver block
Digit output pin
14~56
Segment output pin
57
power supply pin
63
64
CE : Chip enable
CL : Sync clock
DI : Transfer data
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32 S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S40
S41
S42
S43
VFL
G1
1
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
VFL
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S1
1
S10
S9
S39
S8
S7
S6
S5
S4
S3
S2
S1
Vss
OSC0
OSC1
V
DD
BLK
CE
CL
DI
DIGIT
DRIVER
SEGMENT DRIVER
MPX
LATCH
DIMMER
TIMING
GENERATOR
GRID
CONTROL
SHIFT REGISTER
ADDRESS
DETECTOR
TIMING
GENERATOR
DIVIDER
CLOCK
GENERATOR
V
DD
VSS
CE
CL
DI
VFL
BLK
G1
1
G10
G2
G1
S43
S42
S2
S1
O
-
O
I
-
I
I
I
I
58
OSCO
Pin for oscillator
59
OSCI
Pin for oscillator
60
V
DD
Power supply pin to ligic block
61
BLK
Display off input pin
62
CE
Input for serial data transfer
S1~S43
Vss
CL
DI
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