
I-2
EPSON
S1C62740 TECHNICAL HARDWARE
CHAPTER 1: OVERVIEW
Features
1.1
OSC1 oscillation circuit .... Crystal oscillation circuit: 32,768 Hz (Typ.)
OSC3 oscillation circuit .... CR or ceramic oscillation circuit (*1): 1 MHz (Typ.)
Instruction set .... 109 types
Instruction execution time .... During operation at 32 kHz:
153 sec, 214 sec, 366 sec
(differ depending on instruction)
During operation at 1 MHz:
5 sec, 7 sec, 12 sec
ROM capacity .... 4,096 words
× 12 bits
RAM capacity .... 512 words
× 4 bits
Input port .... 5 bits (pull up resistors may be supplemented *1)
Output port .... 4 bits (buzzer and clock outputs are possible *2)
I/O port .... 12 bits (4 bits may be selected for serial input/output port *2)
Serial interface .... 1 port (8 bits serial, synchronous clock type)
A/D converter .... Dual slope type (operating temperature range: 0°C to 50°C)
Resolution/Conversion time: 4 types, programmable (*3)
6,400 counts / 500 msec
3,200 counts / 250 msec
1,600 counts / 125 msec
800 counts / 62.5 msec
A/D conversion precision: ±0.2% (6,400 couns, voltage measuremant mode)
Measurement item: Voltage/Difference voltage/Resistance, programmable
Analog input: 5 terminals
Reference voltage generation circuit built-in
Middle electric potential (GND) generation circuit built-in
LCD driver .... 32 segments
× 4 / 3 / 2 / 1 commons (*2)
Regulated voltage circuit and booster voltage circuit built-in
(compatible with 3–4.5 V LCD, VR adjustable)
Time base counter .... 2 systems (clock timer and stopwatch)
Watchdog timer .... Built-in
Programmable timer .... Built-in, with 1 input
× 8 bits event counter function
AMP (general-purpose operational amplifier)
.... MOS input operational amplifier
× 2
SVD (supply voltage detection) circuit .... 2.3 / 2.4 / 2.5 / 2.6 V, programmable (±100 mV)
External interrupt .... Input port interrupt:
2 systems
Internal interrupt .... Timer interrupt:
3 systems
Serial interface interrupt:
1 system
A/D interrupt:
1 system
Supply voltage .... During A/D operation:
2.4–5.5 V
During A/D stop:
2.2–5.5 V
Current consumption (Typ.) .... During SLEEP:
0.7 A (3 V, stop oscillation)
During HALT:
2.0 A (3 V, 32 kHz)
During operation:
6.0 A (3 V, 32 kHz)
200 A (3 V, 1 MHz)
During A/D operation:
306 A (3 V, 32 kHz)
506 A (3 V, 32 kHz, AMP circuit is ON status)
Package .... QFP5-100pin / QFP15-100pin (plastic) or chip
*1 May be selected with mask option.
*2 May be selected with software.
*3 It is necessary to modify external parts.