PF995-03
S1C63557
4-bit Single Chip Microcomputer
■ Original Architecture Core CPU
■ Low Current Consumption
■ Wide-range Operating Voltage (2.2V to 5.5V)
■ High Speed Operation in Low Voltage
■DESCRIPTION
The S1C63557 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core CPU, ROM
(8,192 words × 13 bits), RAM (5,120 words × 4 bits), serial interface, watchdog timer, programmable timer, time
base counters (2 systems), SVD circuit, a dot-matrix LCD driver that can drive a maximum 40 segments × 17
commons, DTMF/DP generator and sound generator built-in. The S1C63557 features high speed operation and
low current consumption in an operating voltage range (2.2 V to 5.5 V), this makes it suitable for applications
working with batteries. It is also suitable for caller ID and portable data bank systems because it has a large
capacity of RAM built-in.
■FEATURES
■ OSC1 oscillation circuit ...........................32.768 kHz (Typ.) crystal oscillation circuit
■ OSC3 oscillation circuit ...........................3.58 MHz (Typ.) ceramic oscillation circuit
■ Instruction set..........................................Basic instruction: 46 types (411 instructions with all)
Addressing mode: 8 types
■ Instruction execution time .......................During operation at 32.768 kHz: 61 µsec 122 µsec 183 µsec
During operation at 3.58 MHz: 0.56 µsec 1.12 µsec 1.68 µsec
■ ROM capacity .........................................Code ROM:
Data ROM:
8,192 words × 13 bits
2,048 words × 4 bits (= 8K bits)
5,120 words × 4 bits
■ RAM capacity ..........................................Data memory:
Display memory: 680 bits (160 words × 4 bits + 40 × 1 bit)
■ Input port .................................................8 bits (Pull-up resistors may be supplemented 1)
■ Output port ..............................................12 bits (It is possible to switch the 8 bits to special output 2)
■ I/O port ....................................................16 bits (It is possible to switch the 2 bits to special output and
the 4 bits to serial I/F input/output 2)
■ Serial interface ........................................Built-in
(8-bit clock synchronous or asynchronous system is selectable)
■ LCD driver ...............................................40 segments × 8, 16 or 17 commons ( 2)
■ Time base counter ..................................2 systems (Clock timer, stopwatch timer)
■ Programmable timer ...............................Built-in, 2 inputs × 8 bits, with event counter function
■ Watchdog timer.......................................Built-in
■ DTMF generator......................................Built-in
■ DP generator...........................................Built-in
■ Sound generator .....................................With envelope and 1-shot output functions
■ Supply voltage detection (SVD) circuit ...12 values, programmable (2.20 V to 3.30 V)
(It is possible to switch 1 value to the external voltage detection 1)
■ External interrupt ....................................Input port interrupt:
■ Internal interrupt......................................Clock timer interrupt:
Stopwatch timer interrupt:
2 systems
4 systems
2 systems
Programmable timer interrupt: 2 systems
Serial interface interrupt:
Dialer interrupt:
1 system
1 system
■ Power supply voltage..............................2.2 V to 5.5 V
1