S1C63454 TECHNICAL MANUAL
EPSON
1
CHAPTER 1: OUTLINE
CHAPTER
1 O
UTLINE
The S1C63454 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core
CPU, ROM (4,096 words
×
13 bits), RAM (1,024 words
×
4 bits), serial interface, watchdog timer, program-
mable timer, time base counters (2 systems), a dot-matrix LCD driver that can drive a maximum 40
segments
×
17 commons and sound generator built-in. The S1C63454 features high speed operation and
low current consumption in a wide operating voltage range (2.2 V to 6.4 V), this makes it suitable for
applications working with batteries. It is also suitable for portable MD players.
1.1 Features
OSC1 oscillation circuit ......................
32.768 kHz (Typ.) crystal or 60 kHz (Typ.) CR oscillation circuit (
∗
1)
OSC3 oscillation circuit ......................
1.8 MHz (Typ.) CR or 4 MHz (Max.) ceramic oscillation circuit (
∗
1)
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 60 kHz:
33 µsec
67 µsec 100 µsec
During operation at 4 MHz:
0.5 µsec
1 µsec
1.5 µsec
ROM capacity .....................................
Code ROM:
4,096 words
×
13 bits
Data ROM:
2,048 words
×
4 bits (= 8K bits)
RAM capacity ......................................
Data memory:
1,024 words
×
4 bits
Display memory: 680 bits (160 words
×
4 bits + 40
×
1 bit)
Input port .............................................
4 bits
(Pull-up resistors may be supplemented
∗
1)
Output port ..........................................
4 bits
(It is possible to switch the 2 bits to special output
∗
2)
I/O port ................................................
8 bits
(It is possible to switch the 4 bits to serial I/F input/
output
∗
2)
Serial interface ....................................
1 port
(8-bit clock synchronous system)
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
Watchdog timer ...................................
Built-in
Sound generator .................................
With envelope and 1-shot output functions
External interrupt ................................
Input port interrupt:
1 system
Internal interrupt .................................
Clock timer interrupt:
4 systems
Stopwatch timer interrupt:
2 systems
Programmable timer interrupt: 2 systems
Serial interface interrupt:
1 system
Power supply voltage ..........................
2.2 V to 6.4 V (Min. 1.8 V when the OSC3 oscillation circuit is not used)
Operating temperature range .............
-20°C to 70°C
Current consumption (Typ.) ................
Single clock (OSC1: Crystal oscillation):
During HALT (32 kHz)
3.0 V (LCD power OFF)
1 µA
3.0 V (LCD power ON, V
C1
standard)
6 µA
3.0 V (LCD power ON, V
C2
standard)
4 µA
During operation (32 kHz)
3.0 V (LCD power ON, V
C1
standard)
10 µA
Twin clock:
During operation (4 MHz)
3.0 V (LCD power ON, V
C1
standard) 1,000 µA
Package ..............................................
QFP15-100pin (plastic) or chip
∗
1: Can be selected with mask option
∗
2: Can be selected with software