Sharp R-8R51 - Page 29

1
PINNO, = 47
Digit selection signal.
etal eee
P15
The relation between digit signal and digit are as follows:
Digit Signal Digit
PoUS:. salisnainacianisaamisid 1st
Pull -acspacseetanivansadastoesdasis 2nd
POG cu excveceeinshdeas laa tunien 3rd
Pe ees tastietoncsdeteaas a dtomasttas Ath
POF. sh be ial iosutctloeeded 5th
POA: ethic miannniaiaicce 6th
Normally, one pulse ts output in every — period,
and input to the grid of the Fluorescent Display.
eNOS eee
SIGNAL
eel
- = --H
ff [s0Hr} | | |
---L
P14-P13
PIs
Pt2
Segment data signal.
Signal similar to P17.
PINNO. = 44 SIGNAL | P12
‘Dig it selection signal.
Signal similar to P15.
PINNO. j 45
Segment data signal.
Signal similar to P17.
Key strobe signal.
Signal applied to touch-key section.
SIGNAL | P11
R-8R51(W)
R 8R51(B)
A pulse signal is input to RO-R3 terminal while one of G-5 line keys on key matrix is touched.
PIN NO,
AS.
SIGNAL | P10_
Seqment data signal,
Signal similar to P17.
PINNO. | 47
SIGNAL | PO7
Segment data signal.
Signal similar to P17.
Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-7 line keys on key matrix is touched.
PINNO. | 48
Digit selection signal.
Signal similar to P15.
NCE ee
Segment data signal.
Signal similar to P17.
PIN NO.
dia a Nee
Segment data signal.
Signal similar to P17.
Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to RO-R3 terminal while one of G-9 line keys on key matrix is touched.
SIGNAL | POS _
SIGNAL | PO4__
27
A oe
!
i
as
OUT
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