PF759-04
E0C6S27
4-bit Single Chip Microcomputer
ge
oltan
V
ow ratio s
L e
t
Op oduc
Pr
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Core CPU Architecture
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SVD Circuit
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High Quality Display LCD Driver
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Stepping-Motor Driver
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DESCRIPTION
The E0C6S27 is an advanced single-chip CMOS 4-bit microcomputer consisting of the E0C6200A CMOS 4-bit
core CPU. It also contains the ROM, RAM, LCD driver, time base counter, stopwatch counter, and stepping-
motor driver. The E0C6S27 provides an excellent solution for application as digital-analog-combinational
watch.
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FEATURES
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CMOS LSI 4-bit parallel processing
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Clock ..................................................... 32.768kHz for Crystal or CR oscillation circuit
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Instruction set ........................................ 100 instructions
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Instruction execution time ..................... 153µsec, 214µsec, 366µsec at 32.768kHz mode
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ROM size .............................................. 1,536
×
12 bits
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RAM size ............................................... 80
×
4 bits
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Input port ............................................... 4 bits (pull down resistors are available by mask option)
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Output port ............................................ 4 bits (general purpose)
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I/O port .................................................. 4 bits
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LCD driver ............................................. 26 segments
×
2/3/4 commons
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Timer ..................................................... Clock timer / Stopwatch timer
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Built-in stopwatch timer
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Supply voltage detection (SVD) circuit .. 1.2V / 2.4V
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Interrupts ............................................... External : Input interrupt
1 system
Internal : Timer interrupt
2 systems
Motor driver interrupt 1 system
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Current consumption ............................ HALT mode (32.768kHz/3.0V) : 1.0µA (Typ.)
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Package ................................................ QFP6-60pin (plastic)
Die form
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LINE UP
Model
E0C6S27
(Normal type)
E0C6SA27
(High speed type)
E0C6SB27
(Wide voltage type)
E0C6SL27
(Low voltage type)
Supply voltage
2.2 to 3.6V
2.2 to 3.6V
0.9 to 3.6V
0.9 to 1.8V
Oscillator
32.768kHz Crystal or 65kHz CR (Typ.)
200kHz CR (Typ.)
32.768kHz Crystal or 65kHz CR (Typ.)
32.768kHz Crystal
SEIKO EPSON CORPORATION
1
E0C6S27
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BLOCK DIAGRAM
OSC1
OSC2
RESET
ROM
1,536 words x 12 bits
OSC
System Reset
Control
Core CPU E0C6200A
RAM
80 words x 4 bits
COM0
|
COM3
SEG0
|
SEG25
Interrupt
Generator
Input Port
Test Port
K00–K03
TEST
LCD Driver
I/O Port
P00–P03
V
DD
V
L1
–V
L3
CA
CB
V
S1
V
SS
Output Port
Power
Controller
Timer
R00–R03
SVD
Stopwatch Timer
Fout/BZ
BZ
FOUT
&
BUZZER
Motor Driver
A01, A02
DT1, DT2
2
E0C6S27
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PIN CONFIGURATION
QFP6-60pin
45
31
Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name
46
30
E0C6S27
INDEX
60
16
1
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OSC1
OSC2
N.C.
V
S1
CA
CB
V
L1
V
L2
V
L3
DT1
A01
A02
DT2
COM0
COM1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
TEST
46 P01
SEG13
47 P02
SEG14
48 P03
SEG15
49 RESET
SEG16
50 K00
SEG17
51 K01
SEG18
52 K02
SEG19
53 K03
SEG20
54 R00
SEG21
55 R01
SEG22
56 R02
SEG23
57 R03
SEG24
58 N.C.
SEG25
59 V
SS
P00
60 V
DD
N.C. : No Connection
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PIN DESCRIPTION
Pin name
V
DD
V
SS
V
S1
V
L1
V
L2
V
L3
CA, CB
OSC1
OSC2
K00–K03
P00–P03
R00–R03
SEG0–SEG25
COM0–COM3
RESET
TEST
DT1, DT2
A01, A02
Pin No.
60
59
4
7
8
9
5, 6
1
2
50–53
45–48
54–57
18–30, 32–44
14–17
49
31
10, 13
11, 12
I/O
(I)
(I)
O
O
O
O
—
I
O
I
I/O
O
O
O
I
I
I/O
O
Power supply pin (+)
Power supply pin (–)
Oscillation and internal logic system regulated voltage output pin
LCD system regulated voltage output pin (-1.05V)
LCD system booster voltage output pin (V
L1
×2)
LCD system booster voltage output pin (V
L1
×3)
Voltage booster capacitor connecting pin
Crystal or CR oscillation input pin
Crystal or CR oscillation output pin
Input port pin
I/O port pin
Output port pin
LCD segment output pin
LCD common output pin
Initial reset input pin
Testing input pin
Test pin
Motor driving port pin
Function
3
E0C6S27
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ELECTRICAL CHARACTERISTICS
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Absolute Maximum Ratings
Rating
Symbol
Supply voltage
V
SS
Input voltage (1)
V
I
Input voltage (2)
V
IOSC
Operating temperature
Topr
Storage temperature
Tstg
Soldering temperature / Time
Tsol
Permissible dissipation
*
1
P
D
∗1:
In case of plastic package (QFP6-60pin).
Value
-5.0 to 0.5
V
SS
- 0.3 to 0.5
V
SS
- 0.3 to 0.5
-20 to 70
-65 to 150
260°C, 10sec (lead section)
250
(V
DD
=0V)
Unit
V
V
V
°C
°C
–
mW
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Recommended Operating Conditions
E0C6S27
Condition
Supply voltage
Oscillation frequency
Booster capacitor
Capacitor between V
DD
and V
L1
Capacitor between V
DD
and V
L2
Capacitor between V
DD
and V
L3
Capacitor between V
DD
and V
S1
Symbol
Remark
V
SS
V
DD
=0V
f
OSC
Crystal oscillation
CR oscillation, R=470kΩ
C1
C2
C3
C4
C5
Min.
-3.6
Typ.
-3.0
32.768
65
(Ta=-20 to 70°C)
Max.
Unit
-2.2
V
kHz
80
kHz
µF
µF
µF
µF
µF
0.1
0.1
0.1
0.1
0.1
E0C6SA27
Condition
Supply voltage
Oscillation frequency
Booster capacitor
Capacitor between V
DD
and V
L1
Capacitor between V
DD
and V
L2
Capacitor between V
DD
and V
L3
Capacitor between V
DD
and V
S1
Remark
Symbol
V
DD
=0V
V
SS
f
OSC
CR oscillation, R=160kΩ
C1
C2
C3
C4
C5
Min.
-3.6
0.1
0.1
0.1
0.1
0.1
Typ.
-3.0
200
(Ta=-20 to 70°C)
Max.
Unit
-2.2
V
260
kHz
µF
µF
µF
µF
µF
E0C6SL27
Symbol
Remark
Min.
Typ.
V
SS
V
DD
=0V
*
3
-1.8
-1.5
1
V
DD
=0V, With software control
*
-1.8
-1.5
f
OSC
Oscillation frequency
32.768
C1
Booster capacitor
0.1
Capacitor between V
DD
and V
L1
C2
0.1
Capacitor between V
DD
and V
L2
C3
0.1
Capacitor between V
DD
and V
L3
C4
0.1
Capacitor between V
DD
and V
S1
C5
0.1
∗1:
When the heavy load protection mode is set by software and the SVD circuit is turned off.
∗2:
The voltage which can be displayed on the LCD panel will differ according to the characteristics of the LCD panel.
∗3:
When there is no software control during CR oscillation or crystal oscillation.
Condition
Supply voltage
(Ta=-20 to 70°C)
Max.
Unit
-1.1
V
2
-0.9
*
V
kHz
µF
µF
µF
µF
µF
E0C6SB27
Condition
Supply voltage
Remark
Min.
Typ.
Symbol
3
V
DD
=0V
*
-3.6
-3.0
V
SS
V
DD
=0V, With software control
*
1
-3.6
-3.0
Oscillation frequency
f
OSC
Crystal oscillation
32.768
CR oscillation, R=470kΩ
65
Booster capacitor
C1
0.1
Capacitor between V
DD
and V
L1
C2
0.1
C3
0.1
Capacitor between V
DD
and V
L2
C4
0.1
Capacitor between V
DD
and V
L3
C5
0.1
Capacitor between V
DD
and V
S1
∗1:
When the heavy load protection mode is set by software and the SVD circuit is turned off.
∗2:
The voltage which can be displayed on the LCD panel will differ according to the characteristics of the LCD panel.
∗3:
When there is no software control during CR oscillation or crystal oscillation.
(Ta=-20 to 70°C)
Max.
Unit
-1.1
V
-0.9
*
2
V
kHz
kHz
80
µF
µF
µF
µF
µF
4
E0C6S27
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DC Characteristics
E0C6S27/6SA27/6SB27
(Unless otherwise specified: V
DD
=0V, V
SS
=-3.0V, f
OSC
=32.768kHz, Ta=25°C, V
S1
/V
L1
–V
L3
are internal voltage, C1–C5=0.1µF)
Characteristic
Symbol
Min.
Typ.
Condition
Unit
Max.
High level input voltage (1)
V
IH1
0.2•V
SS
K00–K03, P00–P03
V
0
High level input voltage (2)
V
IH2
0.15•V
SS
RESET, TEST
V
0
Low level input voltage (1)
V
IL1
V
SS
K00–K03, P00–P03
V
0.8•V
SS
Low level input voltage (2)
V
IL2
V
SS
0.85•V
SS
RESET, TEST
V
High level input current (1)
I
IH1
V
IH1
=0V, No pull down resistor K00–K03, P00–P03
0
0.5
µA
I
IH2
High level input current (2)
V
IH2
=0V, With pull down resistor K00–K03
10
40
µA
I
IH3
V
IH3
=0V, With pull down resistor P00–P03
High level input current (3)
30
100
µA
RESET, TEST
I
IL
V
IL
=V
SS
Low level input current
-0.5
0
K00–K03, P00–P03
µA
RESET, TEST
V
OH1
=0.1•V
SS
High level output current (1) I
OH1
-1.0
R02, R03, P00–P03
mA
V
OH2
=0.1•V
SS
High level output current (2) I
OH2
-1.0
R00, R01
mA
(built-in protection resistance)
V
OL1
=0.9•V
SS
I
OL1
Low level output current (1)
3.0
R02, R03, P00–P03
mA
I
OL2
V
OL2
=0.9•V
SS
Low level output current (2)
3.0
R00, R01
mA
(built-in protection resistance)
I
OH3
V
OH3
=-0.05V
Common output current
-3
COM0–COM3
µA
I
OL3
V
OL3
=V
L3
+0.05V
3
µA
V
OH4
=-0.05V
I
OH4
Segment output current
-3
SEG0–SEG25
µA
I
OL4
V
OL4
=V
L3
+0.05V
(during LCD output)
3
µA
I
OH5
V
OH5
=0.1•V
SS
Segment output current
-300
SEG0–SEG25
µA
I
OL5
V
OL5
=0.9•V
SS
(during DC output)
300
µA
E0C6SL27
(Unless otherwise specified: V
DD
=0V, V
SS
=-1.5V, f
OSC
=32.768kHz, Ta=25°C, V
S1
/V
L1
–V
L3
are internal voltage, C1–C5=0.1µF)
Characteristic
Symbol
Min.
Typ.
Condition
Unit
Max.
High level input voltage (1)
V
IH1
0.2•V
SS
K00–K03, P00–P03
V
0
High level input voltage (2)
V
IH2
0.15•V
SS
RESET, TEST
V
0
Low level input voltage (1)
V
IL1
V
SS
K00–K03, P00–P03
V
0.8•V
SS
Low level input voltage (2)
V
IL2
V
SS
0.85•V
SS
RESET, TEST
V
High level input current (1)
I
IH1
V
IH1
=0V, No pull down resistor K00–K03, P00–P03
0
0.5
µA
High level input current (2)
V
IH2
=0V, With pull down resistor K00–K03
5
20
I
IH2
µA
I
IH3
High level input current (3)
10
60
V
IH3
=0V, With pull down resistor P00–P03
µA
RESET, TEST
I
IL
V
IL
=V
SS
Low level input current
-0.5
0
K00–K03, P00–P03
µA
RESET, TEST
V
OH1
=0.1•V
SS
High level output current (1) I
OH1
-200
R02, R03, P00–P03
µA
V
OH2
=0.1•V
SS
High level output current (2) I
OH2
-200
R00, R01
µA
(built-in protection resistance)
V
OL1
=0.9•V
SS
I
OL1
Low level output current (1)
700
R02, R03, P00–P03
µA
I
OL2
V
OL2
=0.9•V
SS
Low level output current (2)
700
R00, R01
µA
(built-in protection resistance)
I
OH3
V
OH3
=-0.05V
Common output current
-3
COM0–COM3
µA
I
OL3
V
OL3
=V
L3
+0.05V
3
µA
V
OH4
=-0.05V
I
OH4
Segment output current
-3
SEG0–SEG25
µA
I
OL4
V
OL4
=V
L3
+0.05V
(during LCD output)
3
µA
V
OH5
=0.1•V
SS
I
OH5
Segment output current
-100
SEG0–SEG25
µA
I
OL5
V
OL5
=0.9•V
SS
(during DC output)
130
µA
5
