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CIRCUIT DESCRIPTION
Terminal No.
Terminal name
Signal name
Active H/L
Function
SEG20
30
PEO
31
ea
SEG19
SEG18
PF2
SEG17
PFI
SEG16
PFO
CLK
Clock output for serial data transfer from the CPU.
32
SEG18
33
SEG17
34
SEG16
35
SEG1
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
, Display segment outputs.
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEGO
COM2
Common
display segment outputs.
COM1
COMO
VLC1
VLC2
Power supply. (+5 V)
53
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