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Pin name
V
DD
V
SS
V
D1
V
OSC
V
–V
C1
C5
CA–CG
OSC1
OSC2
OSC3
OSC4
K00–K07
K10/EVIN
R26/TOUT
R27/TOUT
R50/BZ
R51/BZ
P10/SIN
P11/SOUT
P12/SCLK
P13/SRDY
P14–P17
COM0–COM15
COM16–COM31
/SEG66–SEG51
SEG0–SEG40
101–128, 4–16
RESET
∗1
TEST
∗1 TEST is the terminal used for shipping inspection of the IC. For normal operation be sure it is connected to V
E0C88832/88862 TECHNICAL MANUAL
Table 1.4.2 E0C88862 pin description
Pin No.
In/out
68
–
Power supply (+) terminal
69
–
Power supply (GND) terminal
67
–
Regulated voltage for internal circuit
66
–
Regulated voltage for OSC1 oscillation circuit
61–57
O
LCD drive voltage output terminals
56–50
–
Voltage boost/reduce-capacitor connection terminals for LCD
70
I
OSC1 oscillation input terminal
(select crystal oscillation/CR oscillation/external clock input with mask option)
71
O
OSC1 oscillation output terminal
62
I
OSC3 oscillation input terminal
(select crystal/ceramic/CR oscillation/external clock input with mask option)
63
O
OSC3 oscillation output terminal
82–75
I
Input terminals (K00–K07)
74
I
Input terminal (K10) or event counter external clock input terminal (EVIN)
91
O
Output terminal (R26) or programmable timer underflow signal inverted
output terminal (TOUT) (selectable by mask option)
92
O
Output terminal (R27)
or programmable timer underflow signal output terminal (TOUT)
93
O
Output terminal (R50) or buzzer output terminal (BZ)
94
O
Output terminal (R51) or buzzer inverted output terminal (BZ)
(selectable by mask option)
90
I/O
I/O terminal (P10) or serial I/F data input terminal (SIN)
89
I/O
I/O terminal (P11) or serial I/F data output terminal (SOUT)
88
I/O
I/O terminal (P12) or serial I/F clock I/O terminal (SCLK)
87
I/O
I/O terminal (P13) or serial I/F ready signal output terminal (SRDY)
86–83
I/O
I/O terminals (P14–P17)
49–34
O
LCD common output terminals
32–17
O
LCD common output terminals (when 1/32 duty is selected)
or LCD segment output terminal (when 1/16 or 1/8 duty is selected)
O
LCD segment output terminals
73
I
Initial reset input terminal
72
I
Test input terminal
Function
EPSON
1 INTRODUCTION
.
DD
7
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