E0C88365
s
BASIC EXTERNAL CONNECTION DIAGRAM
LCD panel 80 x 18
V
SS
C
G1
OSC1
X'tal1
OSC2
OSC3
R
CR3
OSC4
C
D2
C1
R1
C2
C3
C4
C5
C6
V
D1
COM0
|
COM17
SEG0
|
SEG79
(
)
V
C1
V
C2
V
C3
V
C4
V
C5
CA
E0C88365
[The potential of the substrate
(back of the chip) is V
SS
.]
C7
C8
CB
CC
CD
C9
CE
RESET
Cres
3V
-
+
CP
V
DD
MCU/MPU
TEST
∗1
The CR oscillation frequency changes depending on conditions such as board pattern and elements used. 50 kΩ is only for
reference, so select the resistance according to the evaluation using the actual product.
∗2
C
G1
= 5–20 pF (including board capacitance) when f
OSC1
is 153.6 kHz.
NOTICE:
No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson. Seiko
Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind arising out of
any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that
this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no license to any intellectual
property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this
material will be free from any patent or copyright infringement of a third party. This material or portions thereof may contain technology or the
subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Control Law of Japan and may require an
export license from the Ministry of International Trade and Industry or other approval from another government agency.
© Seiko Epson Corporation 1999 All right reserved.
SEIKO EPSON CORPORATION
ELECTRONIC DEVICES MARKETING DIVISION
IC Marketing & Engineering Group
ED International Marketing Department
I
(Europe & U.S.A.)
421-8, Hino, Hino-shi, Tokyo 191-8501, JAPAN
Phone : 042-587-5812 FAX : 042-587-5564
ED International Marketing Department
II
(Asia)
421-8, Hino, Hino-shi, Tokyo 191-8501, JAPAN
Phone : 042-587-5814 FAX : 042-587-5110
R51
R50
R47
R46
R45
R44
R43
R42
R41
R40
R37
R36
R35
R34
R33
R32
R31
R30
K00
K01
K02
K03
K04
K05
K06
K07
K10
K11
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
R00
R01
R02
R03
R04
R05
R06
R07
R10
R11
R12
R13
R14
R15
R16
R17
R20
R21
R22
R23
R24
R25
R26
R27
Recommended values for external parts
Symbol
R
CR3
C
G1
C1
C2
Name
Feedback resistor
Trimmer capacitor
Recommended value
50 kΩ
∗1
5–25 pF
∗2
0.1
µF
0.1
µF
0.1
µF
0.1
µF
0.1
µF
0.1
µF
0.1
µF
3.3
µF
0.47
µF
100 kΩ (It is needed
when driving an LCD
panel that constitutes
a heavy load.)
Capacitor between V
SS
and V
D1
Capacitor between V
SS
and V
C1
Capacitor between V
SS
and V
C2
C3
Capacitor between V
SS
and V
C3
C4
Capacitor between V
SS
and V
C4
C5
Capacitor between V
SS
and V
C5
C6
C7–C9 Booster capacitors
Capacitor for power supply
C
P
Cres
Capacitor for RESET terminal
R1
Load resistor between
V
SS
and V
C1
SEIKO [ SEIKO EPSON CORPORATION ]
