SEIKO EPSON CORPORATION 1
PF922-03
E0C63158
4-bit Single Chip Microcomputer
DESCRIPTION
The E0C63158 is a microcomputer composed of a CMOS 4-bit core CPU (E0C63000), ROM, RAM, A/D con-
verter and timers. Since the E0C63158 features low voltage and high speed operation and low current con-
sumption, it is suitable for systems that need to be driven with a battery.
FEATURES
CMOS LSI 4-bit parallel processing
Clock ...............................................................32.768kHz (X'tal or CR oscillation)
2MHz (CR or Ceramic oscillation)
Instruction set..................................................Basic instruction : 46 types (411 instructions with all)
Addressing mode : 8 types
ROM capacity .................................................8,192 words × 13 bits
RAM capacity..................................................512 words × 4 bits
Input port.........................................................9 bits
Output port ......................................................12 bits
I/O port ............................................................20 bits
Clock timer ......................................................1 ch.
Programmable timer .......................................8 bits × 2 ch. or 16 bits × 1 ch.
Watchdog timer...............................................Built-in
Serial interface ................................................Synchronous 8 bits
A/D converter ..................................................4 bits (0.9V to 2.7V)
8 bits (2.7V to 3.6V)
Supply voltage detection (SVD) circuit ...........From 1.05 to 2.60V
Operation voltage ...........................................0.9 to 3.6V
Current consumption ......................................2µA (32.768kHz X'tal, 1.5V, HALT)
4µA (32.768kHz X'tal, 1.5V, RUN)
900µA (4MHz Ceramic, 3.0V, RUN)
Package ..........................................................QFP13-64pin, QFP12-48pin, Die form
4-bit E0C63000 Core CPU
A/D Converter
Low Voltage Operation (0.9V min.)
High Speed Instruction Cycle (2-6CPI)
Low Voltage
Operation
Products
2
E0C63158
BLOCK DIAGRAM
PIN CONFIGURATION
OSC1
OSC2
OSC3
OSC4
V
DD
V
C2
CA~CB
V
D1
V
SS
BZ
R00~R03
R10~R13
R20~R23
K00~K03
K10~K13
K20
TEST
AV
DD
AV
SS
AV
REF
RESET
P00~P03
P10~P13
P20~P23
P30~P33
P40~P43
Core CPU E0C63000
ROM
8,192 words × 13 bits
System Reset
Control
Interrupt
Generator
OSC
RAM
512 words × 4 bits
Power
Controller
Output Port
Buzzer
Output
SVD
Clock
Timer
Programmable
Timer/Counter
Input Port
A/D
Serial Interface
I/O Port
QFP12-48pin 2536
13
24
INDEX
121
48
37
No.
1
2
3
4
5
6
7
8
9
10
11
12
Pin name
VSS
OSC1
OSC2
VD1
OSC3
OSC4
VDD
RESET
TEST
AVREF
CB
CA
No.
13
14
15
16
17
18
19
20
21
22
23
24
Pin name
VC2
P43
P42
P41
P40
P23
P22
P21
P20
P13
P12
P11
No.
25
26
27
28
29
30
31
32
33
34
35
36
Pin name
P10
P03
P02
P01
P00
R13
R12
R11
R10
R03
R02
N.C.
No.
37
38
39
40
41
42
43
44
45
46
47
48
Pin name
R01
R00
BZ
K00
K01
K02
K03
K10
K11
K12
K13
K20
N.C. : No Connection
E0C63158
3
E0C63158
PIN DESCRIPTION
Pin name
V
DD
V
SS
V
D1
V
C2
CA, CB
OSC1
OSC2
OSC3
OSC4
K00–K03
K10–K13
K20
P00–P03
P10–P13
P20–P23
P30–P33
1
P40–P43
R00
R01
R02
R03
R10–R13
R20–R23
1
AV
DD
2
AV
SS
2
AV
REF
BZ
RESET
TEST
Function
Power (+) supply pin
Power (–) supply pin
Oscillation/internal logic system regulated voltage output pin
Booster power supply pin
Boosting capacitor connecting pin
Crystal or CR oscillation input pin (selected by mask option)
Crystal or CR oscillation output pin (selected by mask option)
CR or ceramic oscillation input pin (selected by mask option)
CR or ceramic oscillation output pin (selected by mask option)
Input port
Input port
Input port (key-position detect interrupt port)
I/O port
I/O port (switching to serial I/F input/output is possible by software)
I/O port
I/O port
I/O port (can be used as A/D converter inputs)
Output port
Output port
Output port (switching to TOUT output is possible by software)
Output port (switching to FOUT output is possible by software)
Output port
Output port
Power (+) supply pin for A/D converter
Power (–) supply pin for A/D converter
Reference voltage for A/D converter
Buzzer output pin
Initial reset input pin
Testing input pin
QFP12-48
7
1
4
13
12, 11
2
3
5
6
40–43
44–47
48
29–26
25–22
21–18
17–14
38
37
35
34
33–30
10
39
8
9
QFP13-64
7
1
4
15
14, 13
2
3
5
6
55–58
59–62
63
36–33
32–29
28–25
24–21
20–17
53
52
46
45
44–41
40–37
10
11
12
54
8
9
In/Out
I
O
I
O
I
I
I
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
I
I
Pin No.
1: P30–P33 and R20–R23 are not available in the QFP12-48pin package.
2: In the QFP12-48pin package, AVDD and AVSS are connected with VDD and VSS inside of the IC, respectively.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin name
V
SS
OSC1
OSC2
V
D1
OSC3
OSC4
V
DD
RESET
TEST
AV
DD
AV
SS
AV
REF
CB
CA
V
C2
N.C.
No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pin name
P43
P42
P41
P40
P33
P32
P31
P30
P23
P22
P21
P20
P13
P12
P11
P10
No.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Pin name
P03
P02
P01
P00
R23
R22
R21
R20
R13
R12
R11
R10
R03
R02
N.C.
N.C.
No.
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Pin name
N.C.
N.C.
N.C.
R01
R00
BZ
K00
K01
K02
K03
K10
K11
K12
K13
K20
N.C.
N.C. : No Connection
3348
17
32
INDEX
161
64
49
E0C63158
QFP13-64pin
4
E0C63158
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Rating
Supply voltage
Input voltage (1)
Input voltage (2)
Permissible total output current
1
Operating temperature
Storage temperature
Soldering temperature / time
Permissible dissipation
2
1:
2:
(V
SS
=0V)
Symbol
V
DD
V
I
V
IOSC
ΣI
VDD
Topr
Tstg
Tsol
P
D
Value
-0.5 to 4.6
-0.5 to V
DD
+ 0.3
-0.5 to V
D1
+ 0.3
10
-20 to 70
-65 to 150
260°C, 10sec (lead section)
250
Unit
V
V
V
mA
°C
°C
mW
The permissible total output current is the sum total of the current (average current) that simultaneously flows from the output pins (or is draw in).
In case of plastic package (QFP12-48pin, QFP13-64pin).
Recommended Operating Conditions
Condition
Supply voltage
Oscillation frequency
(Ta=-20 to 70°C)
Symbol
V
DD
AV
DD
AV
REF
f
OSC1
f
OSC3
Unit
V
V
V
V
V
kHz
kHz
kHz
kHz
Max.
1.35
3.6
3.6
3.6
3.6
80
4100
Typ.
1.1
3.0
3.0
3.0
3.0
32.768
60
1800
Min.
0.9
1.35
2.2
0.9
0.9
40
Remark
V
SS
=0V Booster mode (OSC3 OFF)
Normal mode (OSC3 OFF)
Normal mode (OSC3 ON)
AV
SS
=0V
AV
REF
AV
DD
Crystal oscillation
CR oscillation
CR oscillation
Ceramic oscillation
DC Characteristics
Characteristic
High level input voltage (1)
High level input voltage (2)
Low level input voltage (1)
Low level input voltage (2)
High level input current
Low level input current (1)
Low level input current (2)
High level output current (1)
High level output current (2)
Low level output current (1)
Low level output current (2)
(Unless otherwise specified: V
DD
=1.5V, V
SS
=0V, f
OSC1
=32.768kHz, Ta=25°C, V
D1
/V
C2
are internal voltage, C
1
–C
3
=0.2µF)
Symbol
V
IH1
V
IH2
V
IL1
V
IL2
I
IH
I
IL1
I
IL2
I
OH1
I
OH2
I
OL1
I
OL2
Unit
V
V
V
V
µA
µA
µA
mA
mA
mA
mA
Max.
V
DD
V
DD
0.2·V
DD
0.1·V
DD
0.5
0
-2.5
-0.3
-0.3
Typ.
-5
Min.
0.8·V
DD
0.9·V
DD
0
0
0
-0.5
-7.5
0.5
0.5
Condition
K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IH
=1.5V K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IL1
=V
SS
K00–03, K10–13, K20, P00–03
No Pull-up P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IL2
=V
SS
K00–03, K10–13, K20, P00–03
With Pull-up P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
OH1
=0.9·V
DD
R00–03, R10–13, R20–23, P00–03
P10–13, P20–23, P30–33, P40–43
V
OH2
=0.9·V
DD
BZ
V
OL1
=0.1·V
DD
R00–03, R10–13, R20–23, P00–03
P10–13, P20–23, P30–33, P40–43
V
OL2
=0.1·V
DD
BZ
5
E0C63158
Characteristic
High level input voltage (1)
High level input voltage (2)
Low level input voltage (1)
Low level input voltage (2)
High level input current
Low level input current (1)
Low level input current (2)
High level output current (1)
High level output current (2)
Low level output current (1)
Low level output current (2)
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, f
OSC1
=32.768kHz, Ta=25°C, V
D1
/V
C2
are internal voltage, C
1
–C
3
=0.2µF)
Symbol
V
IH1
V
IH2
V
IL1
V
IL2
I
IH
I
IL1
I
IL2
I
OH1
I
OH2
I
OL1
I
OL2
Unit
V
V
V
V
µA
µA
µA
mA
mA
mA
mA
Max.
V
DD
V
DD
0.2·V
DD
0.1·V
DD
0.5
0
-5
-1.5
-1.5
Typ.
-10
Min.
0.8·V
DD
0.9·V
DD
0
0
0
-0.5
-15
3
3
Condition
K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IH
=3.0V K00–03, K10–13, K20, P00–03
P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IL1
=V
SS
K00–03, K10–13, K20, P00–03
No Pull-up P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
IL2
=V
SS
K00–03, K10–13, K20, P00–03
With Pull-up P10–13, P20–23, P30–33, P40–43
RESET, TEST
V
OH1
=0.9·V
DD
R00–03, R10–13, R20–23, P00–03
P10–13, P20–23, P30–33, P40–43
V
OH2
=0.9·V
DD
BZ
V
OL1
=0.1·V
DD
R00–03, R10–13, R20–23, P00–03
P10–13, P20–23, P30–33, P40–43
V
OL2
=0.1·V
DD
BZ
Analog Circuit Characteristics and Current Consumption
SVD voltage
SVD circuit response time
Current consumption
1:
V
SVD
t
SVD
I
OP
V
µS
µA
µA
µA
µA
µA
µA
µA
1.15
1.18
1.23
1.28
1.34
1.39
1.50
1.71
2.09
2.14
2.19
2.25
2.35
2.46
2.68
2.78
100
3
5
6
30
800
1200
12
1.05
1.10
1.15
1.20
1.25
1.30
1.40
1.60
1.95
2.00
2.05
2.10
2.20
2.30
2.50
2.60
2
2.5
4
15
500
900
8
0.95
1.02
1.07
1.12
1.16
1.21
1.30
1.49
1.81
1.86
1.91
1.95
2.05
2.14
2.33
2.42
The SVD circuit and the A/D converter are OFF. AV
REF
is open.
SVDS0–3="0"
SVDS0–3="1"
SVDS0–3="2"
SVDS0–3="3"
SVDS0–3="4"
SVDS0–3="5"
SVDS0–3="6"
SVDS0–3="7"
SVDS0–3="8"
SVDS0–3="9"
SVDS0–3="10"
SVDS0–3="11"
SVDS0–3="12"
SVDS0–3="13"
SVDS0–3="14"
SVDS0–3="15"
During HALT 32.768kHz
Normal mode
1
During HALT 32.768kHz
Booster mode (V
DD
=1.2V)
1
During execution 32.768kHz (Crystal oscillation)
Normal mode
1
60kHz (CR oscillation)
1.8MHz (CR oscillation)
4MHz (Ceramic oscillation)
During execution 32.768kHz (Crystal oscillation)
Booster mode (V
DD
=1.2V)
1
Characteristic Symbol UnitMax.Typ.Min.Condition
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, f
OSC1
=32.768kHz, C
G
=25pF, Ta=25°C, V
D1
/V
C2
are internal voltage, C
1
–C
3
=0.2µF)
6
E0C63158
A/D Converter Characteristics
Characteristic
Resolution
Error
Convertion time
Input voltage
Reference voltage
AV
REF
resistance
Symbol
t
conv
AV
REF
Unit
bit
LSB
LSB
LSB
µS
µS
V
V
k
Max.
8
3
3
3
21
641
AV
REF
AV
DD
Typ.
8
20
Min.
8
-3
-3
-3
AV
SS
0.9
15
Condition
2.2VV
DD
2.7V Fconv=OSC3/21MHz or OSC1
1.6VV
DD
2.2V Fconv=OSC1
0.9VV
DD
1.6V Fconv=OSC1, VADSEL=1
Fconv=OSC3/2=1MHz
Fconv=OSC1=32kHz
(Unless otherwise specified: AV
DD
=V
DD
=0.9 to 3.6V, AV
SS
=V
SS
=0V, Ta=-25 to 75°C)
Oscillation Characteristics
The oscillation characteristics change depending on the conditions (components used, board pattern, etc.). Use the follow-
ing characteristics as reference values.
OSC1 Crystal Oscillation Circuit
Characteristic
Oscillation start voltage
Oscillation stop voltage
Built-in capacitance (drain)
Frequency/voltage deviation
Frequency/IC deviation
Frequency adjustment range
Harmonic oscillation start voltage
Permitted leak resistance
Symbol
Vsta
Vstp
C
D
f/V
f/IC
f/C
G
V
hho
R
leak
Unit
V
V
V
pF
ppm
ppm
ppm
ppm
V
M
Max.
10
5
10
Typ.
14
30
Min.
1.1
1.1
0.9
-10
25
3.6
200
Condition
t
sta3sec (V
DD
)
t
stp10sec Normal mode
(V
DD
)Booster mode
Including the parasitic capacitance inside the IC (in chip)
V
DD
=0.9 to 3.6V with VDC switching
without VDC switching
C
G
=5 to 25pF
C
G
=5pF (V
DD
)
Between OSC1 and V
DD
, V
SS
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, f
OSC1
=32.768kHz, C
G
=25pF, C
D
=built-in, Ta=25°C)
OSC1 CR Oscillation Circuit
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Oscillation stop voltage
Symbol
f
OSC1
Vsta
t
sta
Vstp
Unit
%
V
mS
V
Max.
30
3
Typ.
60kHz
Min.
-30
2.2
2.2
Condition
Normal mode (V
DD
)
V
DD
=2.2 to 3.6V
Normal mode (V
DD
)
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, R
CR1
=1.5M, Ta=25°C, VDC=1)
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Oscillation stop voltage
Symbol
f
OSC1
Vsta
t
sta
Vstp
Unit
%
V
mS
V
Max.
30
3
Typ.
80kHz
Min.
-30
1.3
1.3
Condition
Normal mode (V
DD
)
V
DD
=1.3 to 3.6V
Normal mode (V
DD
)
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, R
CR1
=1M, Ta=25°C, VDC=0)
OSC3 Ceramic Oscillation Circuit
Characteristic
Oscillation start voltage
Oscillation start time
Oscillation stop voltage
Symbol
Vsta
tsta
Vstp
Unit
V
mS
V
Max.
5
Typ.Min.
2.2
2.2
Condition
Normal mode (VDD)
VDD=2.2 to 3.6V
Normal mode (VDD)
(Unless otherwise specified: VDD=3.0V, VSS=0V, Ceramic oscillator: 4MHz, CGC=CDC=100pF, Ta=25°C)
OSC3 CR Oscillation Circuit
Characteristic
Oscillation frequency dispersion
Oscillation start voltage
Oscillation start time
Oscillation stop voltage
Symbol
f
OSC3
Vsta
t
sta
Vstp
Unit
%
V
mS
V
Max.
30
3
Typ.
1.8MHz
Min.
-30
2.2
2.2
Condition
Normal mode (V
DD
)
V
DD
=2.2 to 3.6V
Normal mode (V
DD
)
(Unless otherwise specified: V
DD
=3.0V, V
SS
=0V, R
CR2
=40.2k, Ta=25°C)
7
E0C63158
OSC1 CR oscillation frequency-resistance characteristic (VDC = 1)
Resistance for CR oscillation R
CR1
[k]
CR oscillation frequency f
OSC1
[kHz]
10
100
1000
10000
10 100 1000 10000
V
DD
= 2.2 to 3.6V
V
D1
= 2.1V (VDC = 1)
V
SS
= 0V
Ta = 25°C
Typ. value
OSC1 CR oscillation frequency-resistance characteristic (VDC = 0)
Resistance for CR oscillation R
CR1
[k]
CR oscillation frequency f
OSC1
[kHz]
10
100
1000
10000
10 100 1000 10000
V
DD
= 1.3 to 3.6V
V
D1
= 1.3V (VDC = 0)
V
SS
= 0V
Ta = 25°C
Typ. value
OSC3 CR oscillation frequency-resistance characteristic
Resistance for CR oscillation R
CR2
[k]
CR oscillation frequency f
OSC3
[kHz]
10
100
1000
10000
10 100 1000 10000
V
DD
= 2.2 to 3.6V
V
SS
= 0V
Ta = 25°C
Typ. value
8
E0C63158
Serial Interface AC Characteristics
Clock Synchronous Master Mode
• During 32 kHz operation
Characteristic
Transmitting data output delay time
Receiving data input set-up time
Receiving data input hold time
Symbol
tsmd
tsms
tsmh
Unit
µS
µS
µS
Max.
5
Typ.Min.
10
5
(Condition: VDD=3.0V, VSS=0V, Ta=25°C, VIH1=0.8VDD, VIL1=0.2VDD, VOH=0.8VDD, VOL=0.2VDD)
• During 1 MHz operation
Characteristic
Transmitting data output delay time
Receiving data input set-up time
Receiving data input hold time
Symbol
tsmd
tsms
tsmh
Unit
nS
nS
nS
Max.
200
Typ.Min.
400
200
(Condition: VDD=3.0V, VSS=0V, Ta=25°C, VIH1=0.8VDD, VIL1=0.2VDD, VOH=0.8VDD, VOL=0.2VDD)
Clock Synchronous Slave Mode
• During 32 kHz operation
Characteristic
Transmitting data output delay time
Receiving data input set-up time
Receiving data input hold time
Symbol
tssd
tsss
tssh
Unit
µS
µS
µS
Max.
10
Typ.Min.
10
5
(Condition: VDD=3.0V, VSS=0V, Ta=25°C, VIH1=0.8VDD, VIL1=0.2VDD, VOH=0.8VDD, VOL=0.2VDD)
• During 1 MHz operation
Characteristic
Transmitting data output delay time
Receiving data input set-up time
Receiving data input hold time
Symbol
tssd
tsss
tssh
Unit
nS
nS
nS
Max.
500
Typ.Min.
400
200
(Condition: VDD=3.0V, VSS=0V, Ta=25°C, VIH1=0.8VDD, VIL1=0.2VDD, VOH=0.8VDD, VOL=0.2VDD)
<Master mode>
SCLK OUT
SOUT
SIN
VOH
VOH
VOL
tsms tsmh
tsmd
VIH1
VIL1
VOL
<Slave mode>
SCLK IN
SOUT
SIN
VIH1
VOH
VOL
tsss tssh
tssd
VIH1
VIL1
VIL1
9
E0C63158
Timing Chart
Reset Supply voltage
OSC1 oscillation clock
RESET terminal
(active-Low)
Internal reset signal
(active-High)
3 sec
Oscillation unstabilized state
6 msec min.
(fOSC1 = 32.768 kHz)
System clock switching
VDC
OSCC
CLKCHG
(Note) When the OSC1 oscillation circuit has been selected as the CR oscillation circuit,
it is not necessary to set the VDC register.
Whether the VDC register value is "1" or "0" does not matter.
2.5 msec min.
5 msec min.
1 instruction execution time or longer
Supply voltage VC2 mode control during heavy load driving
DBON
VDSEL
VADSEL (Note)
Heavy load ON
OFF
(Note) VADSEL is used only when it is required.
100 msec min.
100 msec min.
1 msec min. 2 sec min.
1 instruction execution time or longer
E0C63158
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
CA
CB
AV
DD
AV
REF
TEST
V
DD
V
D1
OSC1
OSC2
OSC3
OSC4
RESET
V
SS
AV
SS
C
1
C
2
C
GX
C
DC
C
RES
C
P
0.9 V
|
3.6 V
+
X'tal
CR
3
2
R
CR2
1
2
R
CR1
K00–K03
K10–K13
K20
P00–P03
P10 (SIN)
P11 (SOUT)
P12 (SCLK)
P13 (SRDY)
P20–P23
P30–P33
P40 (AD0)
P41 (AD1)
P42 (AD2)
P43 (AD3)
R00
R01
R02 (TOUT)
R03 (FOUT)
R10–R13
R20–R23
1: Crystal oscillation
2: CR oscillation
3: Ceramic oscillation
C
GC
BZ
Input
I/O
Output
X'tal
C
GX
R
CR1
CR
C
GC
C
DC
R
CR2
C
1
–C
3
C
P
C
RES
Crystal oscillator
Trimmer capacitor
Resistor for OSC1 CR oscillation
Ceramic oscillator
Gate capacitor
Drain capacitor
Resistor for OSC3 CR oscillation
Capacitor
Capacitor
RESET terminal capacitor
32.768 kHz, C
I
(Max.) = 34 k
5–25 pF
1.5 M (60 kHz)
4 MHz (3.0 V)
100 pF
100 pF
40.2 k (1.8 MHz)
0.2 µF
3.3 µF
0.1 µF
E0C63158
[The potential of the substrate
(back of the chip) is V
SS
.]
V
C2
Piezo
Coil
C
3
BASIC EXTERNAL CONNECTION DIAGRAM
Note: The above table is simply an example, and is not guaranteed to work.