
108
EPSON
S1C63466 TECHNICAL MANUAL
CHAPTER 6: BASIC EXTERNAL WIRING DIAGRAM
CHAPTER
6BASIC EXTERNAL WIRING DIAGRAM
When negative polarity is selected for buzzer output (mask option selection)
Note:
In order to prevent unstable operation of the OSC3 oscillation circuit due to current leak between OSC3
and VDD, please keep enough distance between VDD and other signals on the board pattern.
In order to get a stable frequency for ceramic oscillation, please use maker's recommendatory value for
CGC and CDC.
Precautions for Visible Radiation
Visible radiation causes semiconductor devices to change the electrical characteristics. It may cause this
IC to malfunction. When developing products which use this IC, consider the following precautions to
prevent malfunctions caused by visible radiations.
(1) Design the product and implement the IC on the board so that it is shielded from visible radiation in
actual use.
(2) The inspection process of the product needs an environment that shields the IC from visible radiation.
(3) As well as the face of the IC, shield the back and side too.
SVD
CA
CB
CC
CD
CE
CF
V
DD
D1
OSC1
OSC2
OSC3
OSC4
RESET
VSS
C1
C2
C3
C4
C9
CGX
CDC
CRES
CP
(1.8 V)
2.2 V
|
6.4 V
+
X'tal
CR
*3
*2
R
CR2
*1
*2
R
CR1
K00–K03
K10–K13
P00–P03
P10 (SIN)
P11 (SOUT)
P12 (SCLK)
P13 (SRDY)
P20
P21
P22 (CL)
P23 (FR)
R00
R01
R02 (TOUT)
R03 (FOUT)
R10–R13
R20–R23
SEG0
|
SEG59
COM0
|
COM16
C
5
C
6
C
7
C
8
LCD panel 60
× 17
1: Crystal oscillation
2: CR oscillation
3: Ceramic oscillation
CGC
VREF
TEST
V
C1
C2
C3
C4
C5
BZ
Piezo
Coil
Input
I/O
Output
X'tal
CGX
RCR1
CR
CGC
CDC
RCR2
C1–C8
C9
CP
CRES
Crystal oscillator
Trimmer capacitor
Resistor for OSC1 CR oscillation
Ceramic oscillator
Gate capacitor
Drain capacitor
Resistor for OSC3 CR oscillation
Capacitor
RESET terminal capacitor
32.768 kHz, CI (Max.) = 34 k
5–25 pF
600 k
(60 kHz)
4 MHz (3.0 V)
30 pF
47 k
(1.8 MHz)
0.2
F
0.1
F
3.3
F
0.1
F
Note: The above table is simply
an example, and is not
guaranteed to work.
S1C63466
[The potential of the substrate
(back of the chip) is VSS.]