120
EPSON
E0C88832/88862 TECHNICAL MANUAL
6 BASIC EXTERNAL WIRING DIAGRAM
6 BASIC EXTERNAL WIRING DIAGRAM
●
When the piezoelectric buzzer is driven single terminal and LCD panel is used by 1/5 bias
X'tal1
C
G1
R
CR1
X'tal2
Ceramic
Rf
C
G2
C
D2
R
CR3
Crystal oscillator
Trimmer capacitor
Resistor for CR oscillation
Crystal oscillator
Ceramic oscillator
Feedback resistor
Gate capacitor
Drain capacitor
Resistor for CR oscillation
32.768 kHz, CI(Max.)=35 k
Ω
5–25 pF
800 k
Ω
4.9152 MHz
4 MHz
1 M
Ω
15 pF (Crystal oscillator)
30 pF (Ceramic oscillator)
15 pF (Crystal oscillator)
30 pF (Ceramic oscillator)
20 k
Ω
Recommended values for external parts
C
1
C
2
C
3
C
4
C
5
C
6
C
7
–C
10
C
P
Cres
Capacitor between V
SS
and V
D1
Capacitor between V
SS
and V
C1
Capacitor between V
SS
and V
C2
Capacitor between V
SS
and V
C3
Capacitor between V
SS
and V
C4
Capacitor between V
SS
and V
C5
Booster/reducer capacitors
Capacitor for power supply
Capacitor for RESET terminal
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
3.3
µ
F
0.47
µ
F
N.C.
E0C88832/88862
LCD panel 51(41) x 32
V
SS
V
OSC
OSC1
OSC2
OSC3
OSC4
V
D1
V
C1
V
C2
V
C3
V
C4
V
C5
CA
CB
CC
CD
CE
CF
CG
RESET
V
DD
TEST
K00
K01
K02
K03
K04
K05
K06
K07
K10
R26 (TOUT)
R27 (TOUT)
∗
R34 (FOUT)
R51 (BZ)
P10 (SIN)
P11 (SOUT)
P12 (SCLK)
P13 (SRDY)
P14
P15
P16
P17
C
G2
C
G1
C
1
C
2
C
3
C
4
C
5
C
6
C
7
C
8
C
9
C
10
X'tal1
Rf
Cres
3 V
C
P
R50 (BZ)
+
-
Piezo
Coil
SEG0
∗
SEG50(40)
COM0
COM31
X'tal2 or
Ceramic
R
CR3
R
CR1
C
D2
∗
2
∗
1
∗
3
∗
4
∗
: R34 (FOUT) and SEG41–SEG50
are unavailable in the E0C88862.
[The potential of the substrate
(back of the chip) is V
SS
.]
Symbol
Name
Recommended value
Symbol
Name
Recommended value
∗
The connection diagram shown above is an example of when mask option settings are as follows:
LCD power source: Internal power supply (1/5 bias), RESET terminal: With pull-up resistor,
R51 specification: General-purpose output port
∗
1 OSC1 = Crystal oscillation,
∗
2 OSC1 = CR oscillation,
∗
3 OSC3 = Crystal/Ceramic oscillation,
∗
4 OSC3 = CR oscillation
Note: The above table is simply an example. Refer to Chapter 7, "ELECTRICAL CHARACTERISTICS", for
detailed characteristics.
Содержание 0C88832
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