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PF760-03
E0C6S37
4-bit Single Chip Microcomputer
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q Core CPU Architecture
q SVD Circuit / Comparator
q Super Low Operating Voltage (0.9V)
q High Quality Display LCD Driver
s DESCRIPTION
The E0C6S37 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 circuit, time base counter and stopwatch counter. The
E0C6S37 provides an excellent solution for low-power consumption systems with clock functions.
s FEATURES
q CMOS LSI 4-bit parallel processing
q Clock ..................................................... 32.768kHz (Typ.)
CR or Crystal oscillation circuit selectable through mask option
q Instruction set ........................................ 100 instructions
q Instruction execution time ..................... 153µsec, 214µsec or 366µsec (depending on instruction)
q ROM capacity ....................................... 1,024 words × 12 bits
q RAM capacity ........................................ 80 words × 4 bits
q Input port ............................................... 4 bits (pull-down resistors are available by mask option)
q Output port ............................................ 4 bits (general purpose port)
2 bits (for buzzer output) : BZ/BZ 4kHz, 2kHz
1 bit (for clock output) : 16kHz, 8kHz, 4kHz, 2kHz
q I/O port .................................................. 4 bits
q LCD driver ............................................. 26 segments × 2 commons (1/2 duty), 3 commons (1/3 duty)
or 4 commons (1/4 duty)
q Built-in supply voltage detection (SVD) circuit
q Built-in stopwatch timer
q Interrupts ............................................... External : Input interrupt
1 line
Internal : Timer interrupt
1 line
Stopwatch interrupt 1 line
q Supply voltage ...................................... 1.5V/3.0V (Minimum operating voltage: 0.9V/1.8V)
q Current consumption ............................ HALT mode (32.768kHz/3.0V)
: 1.0µA (Typ.)
OPERATING mode (32.768kHz/3.0V) : 2.5µA (Typ.)
q Package ................................................ QFP6-60pin (plastic)
Die form
s LINE UP
Model
E0C6SL37
E0C6S37
E0C6SB37
Supply voltage
1.5V (0.9 to 2.0V)
3.0V (1.8 to 3.6V)
3.0V (0.9 to 3.6V)
Clock (oscillation)
32.768kHz Crystal or 65kHz CR oscillation (Typ.)
32.768kHz Crystal or 65kHz CR oscillation (Typ.)
32.768kHz Crystal or 65kHz CR oscillation (Typ.)
SEIKO EPSON CORPORATION
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E0C6S37
s BLOCK DIAGRAM
OSC1 OSC2
RESET
ROM
1,024 words x 12 bits
OSC
System Reset
Control
Core CPU E0C6200A
COM0
–COM3
SEG0
–SEG25
VDD
VL1–VL3
CA, CB
VS1
VSS
RAM
80 words x 4 bits
LCD Driver
Power
Controller
SVD
FOUT
&
BUZZER
Interrupt
Generator
Input Port
Test Port
I/O Port
K00–K03
TEST
P00–P03
Output Port
R00–R03
Clock Timer
Stopwatch Timer
s PIN CONFIGURATION
QFP6-60pin
45
31
46 30
E0C6S37
INDEX
60 16
1 15
2
Pin No. Pin name Pin No. Pin name Pin No. Pin name Pin No. Pin name
1 OSC1
16 COM2 31 TEST
46 P01
2 OSC2
17 COM3 32 SEG13 47 P02
3 N.C.
18 SEG0
33 SEG14 48 P03
4 VS1
19 SEG1
34 SEG15 49 RESET
5 N.C.
20 SEG2
35 SEG16 50 K00
6 CA
21 SEG3
36 SEG17 51 K01
7 CB
22 SEG4
37 SEG18 52 K02
8 N.C.
23 SEG5
38 SEG19 53 K03
9 N.C.
24 SEG6
39 SEG20 54 R00
10 N.C.
25 SEG7
40 SEG21 55 R01
11 VL1
26 SEG8
41 SEG22 56 R02
12 VL2
27 SEG9
42 SEG23 57 R03
13 VL3
28 SEG10 43 SEG24 58 N.C.
14 COM0 29 SEG11 44 SEG25 59 VSS
15 COM1 30 SEG12 45 P00
60 VDD
N.C. : No Connection

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E0C6S37
s PIN DESCRIPTION
Pin name
VDD
VSS
VS1
VL1
VL2
VL3
CA, CB
OSC1
OSC2
K00–K03
P00–P03
Pin No.
60
59
4
11
12
13
6, 7
1
2
50–53
45–48
R00–R03
54–57
SEG0–SEG25 18–30, 32–44
COM0–COM3
RESET
TEST
14–17
49
31
I/O Function
(I) Power supply pin (+)
(I) Power supply pin (–)
O Oscillation and internal logic system regulated voltage output pin
O LCD system regulated voltage output pin (-1.05V)
O LCD system booster voltage output pin (VL1×2)
O LCD system booster voltage output pin (VL1×3)
— Voltage booster capacitor connecting pin
I Crystal oscillation input pin
O Crystal oscillation output pin
I Input port pin
I/O I/O port pin
O Output port pin
O LCD segment output pin
O LCD common output pin
I Initial reset input pin
I Testing input pin
s BASIC EXTERNAL CONNECTION DIAGRAM
LCD
PANEL
CA
K00 CB C1
I
K03
VL1 C2
VL2 C3
E0C6S37
VL3 C4
E0C6SL37P00
I/O
VDD
OSC1
CG RCR
P03
X'tal
E0C6SB37
OSC2
VS1
C5
1.5V
or
O R02
R03
RESET
TEST
Cp
3.0V
VSS
Piezo
Buzzer
X'tal
CG
C1–C5
Cp
RCR
Crystal oscillator
Trimmer capacitor
Capacitor
Capacitor
CR oscillating resistor
32.768kHz, CI(Max.)=35k
5 to 25pF
0.1µF
3.3µF
470k(65kHz Typ.)
Note: The above table is simply an example, and is not guaranteed to work.
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