X-45/85
CIRCUIT DESCRIPTION
Pin name
Function
vP
Pull down input for PO, P1 and P2
Fluorescent display segment drive output
| Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
| Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display segment drive output
Fluorescent display grid drive output for key scan
7
Fluorescent display grid drive output for key scan
' Fluorescent display grid drive output for key scan
tp
|
| Fluorescent display grid drive output for key scan
| Fluorescent display grid drive output for key scan
Fluorescent display grid drive output for key scan
Fluorescent display grid drive output for key scan
Fjuorescent display grid drive output for key scan
i i
ialolololololololololosl/ololololasojololojalosojo
Power supply for A/D converter
; Power supply pin
20