S1C88349
8-bit Single Chip Microcomputer
●
●
●
●
Original Architecture Core CPU
Low Current Consumption
Wide-range Operating Voltage (1.8V to 5.5V)
Built-in Melody Generator and A/D Converter
DESCRIPTION
The S1C88349 microcomputer features the S1C88 (Model 3) CMOS 8-bit core CPU along with 48K bytes of
ROM, 2K bytes of RAM, three different timers, a serial interface with optional asynchronization or clock
synchronization, and an A/D converter.
The S1C88349 is fully operable over a wide range of voltages, and can perform high speed operations even at
low voltage. Like all the equipment in the S1C Family, these microcomputers have low power consumption.
A 19-bit external address bus and 4 bits chip enable signals make it possible for this microcomputer to control
up to 512K × 4 bytes of memory, making them ideal for high performance data bank systems.
FEATURES
Core CPU
OSC1 oscillation
circuit
OSC3 oscillation
circuit
Instruction set
Min. instruction
execution time
Internal ROM capacity
Internal RAM capacity
Bus line
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
μsec/8.2
MHz (2 clock)
48K bytes
2K bytes/RAM 3,216 bits/display memory
Address bus: 19 bits (also usable as a general output port when not used as a bus)
Data bus: 8 bits (also usable as a general I/O port when not used as a bus)
CE signal:
4 bits
WR signal: 1 bit
(also usable as a general output port when not used as a bus)
RD signal: 1bit
10 bits (2 bits can be set for event counter external 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)
8 bits (4 bits each can be set for serial interface input/output and analog comparator/AD input)
1ch (optional clock synchronous system or asynchronous system)
Programmable timer (8 bits): 2ch
(1ch can be set as a an event counter or 2ch as a 16 bits programmable timer for 1ch)
Clock timer (8 bits):
1ch
Stopwatch timer (8 bits): 1ch
Dot matrix type (supports5 × 8 or 5 × 5 fonts)
51 segments × 32 commons (1/5 bias)
67 segments × 16 or 8 commons (1/5 bias)
Built-in LCD power supply circuit (booster type, 5 potentials)
Envelope function, equipped with volume control
Built-in
2ch built-in (not available if A/D converter is used)
Resolution: 10 bits, input: 4ch, Maximum error: ±5 LSB (not available if analog comparator is used)
Can detect up to 16 different voltage levels
Input port
Output port
I/O port
Serial interface
Timer
LCD driver
Sound generator
Watchdog timer
Analog comparator
A/D converter
Supply
voltage
detection
(SVD) circuit
Interrupt
Supply voltage
Current consumption
External interrupt: Input interrupt
2 systems (3 types)
Internal interrupt:
Timer interrupt
3 systems (9 types)
Serial interface interrupt
1 system (3 types)
A/D converter interrupt
1 system (1 type)
Normal mode:
2.4 V–5.5 V (Max. 4.2 MHz) V
D1
= 2.2 V
Low power mode: 1.8 V–3.5 V (Max. 80 kHz)
V
D1
= 1.2V
High speed mode: 3.5 V–5.5 V (Max. 8.2 MHz) V
D1
= 3.3V
SLEEP mode:
0.3
μA
EPSON [ EPSON COMPANY ]
