S1C88349 Datasheet, PDF (1/3 Pages) Epson Company – 8-bit Single Chip Microcomputer

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
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
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
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