
I-2
EPSON
S1C88348/317/316/308 TECHNICAL HARDWARE
1 INTRODUCTION
1.2 Features
Table 1.2.1 lists the features of the S1C883xx.
Table 1.2.1 Main features
Model
Core CPU
OSC1 Oscillation circuit
OSC3 Oscillation circuit
Instruction set
Min. instruction execution time
Internal ROM capacity
Internal RAM capacity
Bus line
Input port
Output port
I/O port
Serial interface
Timer
Power supply circuit to
drive liquid crystals
LCD driver
Sound generator
Watchdog timer
Analog comparator
Supply voltage detection
(SVD) circuit
Interrupt
Supply voltage
Current consumption
Supply form
S1C88 (MODEL3) CMOS 8-bit core CPU
Crystal oscillation circuit/CR oscillation circuit/external clock input 32.768 kHz (Typ.)
Crystal oscillation circuit/ceramic oscillation circuit/CR oscillation circuit/external clock input 8.2 MHz (Max.)
608 types (Usable for multiplication and division instructions)
0.244
sec/8.2 MHz (2 clock)
Address bus:
Data bus:
CE signal:
WR signal:
RD signal:
10 bits
(2 bits can be set for event counter clock input
and bus request signal input terminal)
9 bits
(6 bits can be set for buzzer output, LCD control, FOUT,
TOUT and bus acknowledge signal output terminal)
48K bytes
2K byte/RAM
3,216 bits/display memory
16K bytes
(5 bits can be set for
buzzer, LCD control,
FOUT and TOUT)
8 bits (4 bits each can be set for serial interface input/output and analog comparator input)
1ch (Optional clock synchronous system or asynchronous system)
Programmable timer (8 bits):
(1ch can be set as a an event counter or 2ch as a 16 bits programmable timer for 1ch)
Clock timer (8 bits):
Stopwatch timer (8 bits):
Built-in (booster type, 5 potentials)
Envelop function, equipped with volume control
Built-in
2ch built-in
Can detect up to 16 different voltage levels
External interrupt:
Internal interrupt:
Normal mode:
Low power mode:
High speed mode:
SLEEP status:
300 nA (Typ./normal mode)
HALT status (32.768 kHz): 2
A (Typ./normal mode)
RUN status (32.768 kHz):
14
A (Typ./normal mode)
RUN status (4.9152 MHz): 2 mA (Typ./normal mode)
QFP8-160 pin, QFP17-160pin or chip
QFP8-160 pin or chip
Dot matrix type
(5
× 8 or 5 × 5 fonts)
51 SEG
× 32 COM
67 SEG
× 16 COM
67 SEG
× 8 COM
Expandable external LCD driver
9 bits
(1 bit can be set for event
counter clock input)
5 bits
8K bytes
256 bytes/RAM
3,216 bits/display memory
S1C88316
S1C88317
S1C88348
S1C88308
19 bits
(Also usable as a general output port when not used as a bus)
8 bits
(Also usable as a general I/O port when not used as a bus)
4 bits
1 bit
(Also usable as a general output port when not used as a bus)
2ch
1ch
Dot matrix type
(5
× 8 or 5 × 5 fonts)
41 SEG
× 32 COM
57 SEG
× 16 COM
57 SEG
× 8 COM
Expandable external
LCD driver
Input interrupt
Timer interrupt
Serial interface interrupt
2.4 V–5.5 V (Max. 4.2 MHz)
1.8 V–3.5 V (Max. 50 kHz)
3.5 V–5.5 V (Max. 8.2 MHz)
2 systems (3 types)
3 systems (9 types)
1 system (3 types)
*
The number of bits cited for output ports and I/O ports does not include those shared with the bus.