S1C88649 Datasheet, PDF (5/20 Pages) Epson Company – 8-bit Single Chip Microcomputer

■ BASIC EXTERNAL CONNECTION DIAGRAM
S1C88649
LCD panel 80 x 16
VSS
∗2
CG1
∗1
OSC1
X'tal1
OSC2
∗4
CG2
∗3
OSC3
X'tal2 or
Ceramic
Rf
CD2 _C1
C2
C3
C4
C5
OSC4
VD1
VC1
VC2
VC4
VC5
CA
C6
CB
C7
CC
CD
C8
CE
RESET
Cres
-
3V
+ ^CP
VDD
TEST
Piezo
K00
K01
K02
K03
K04
K05
S1C88649
K06
K07
[The potential of the substrate
(back of the chip) is VSS.]
P10 (SIN)
P11 (SOUT)
P12 (SCLK)
P13 (SRDY)
P14 (TOUT0/1)
P15 (TOUT2/3)
P16 (FOUT)
∗1: OSC1 = Crystal oscillation
∗2: OSC1 = CR oscillation
∗3: OSC3 = Crystal or Ceramic oscillation
∗4: OSC3 = CR oscillation
Coil
Recommended values for external parts
Symbol
Name
Recommended value
X'tal1 Crystal oscillator
32.768 kHz, CI(Max.) = 35 kΩ
CG1 Trimmer capacitor
0–25 pF
RCR1 Resistor for CR oscillation 1.5 MΩ
X'tal2 Crystal oscillator
4 MHz
Ceramic Ceramic oscillator
4 MHz
Rf
Feedback resistor
1 MΩ
CG2 Gate capacitor
15 pF (Crystal oscillation)
30 pF (Ceramic oscillation)
CD2
Drain capacitor
15 pF (Crystal oscillation)
30 pF (Ceramic oscillation)
Symbol
Name
Recommended value
RCR3 Resistor for CR oscillation
40 kΩ
C1
Capacitor between VSS and VD1 0.1 µF
C2
Capacitor between VSS and VC1 0.1 µF
C3
Capacitor between VSS and VC2 0.1 µF
C4
Capacitor between VSS and VC4 0.1 µF
C5
Capacitor between VSS and VC5 0.1 µF
C6–C8 Booster capacitors
0.1 µF
CP
Capacitor for power supply
3.3 µF
Cres Capacitor for RESET terminal 0.47 µF
Note: The above table is simply an example, and is not guaranteed to work.
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