S1C88650 Datasheet, PDF (1/4 Pages) Epson Company – 8-bit Single Chip Microcomputer

S1C88650
8-bit Single Chip Microcomputer
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● Original Architecture Core CPU
● Large-capacity Font ROM for Kanji,
Simplified Chinese and Hangul (896K bytes)
● Dot-matrix LCD Driver (126 × 32)
■ DESCRIPTION
The S1C88650 is an 8-bit microcomputer for portable equipment with an LCD display that has a built-in LCD
controller/driver and a character generator (kanji) ROM. This microcomputer features low-voltage (1.8V) and
high-speed (8.2MHz) operations as well as low-current consumption (2.5µA during standby). The LCD control-
ler/driver contains an LCD drive power supply circuit and can drive an maximum of 126 × 32-dot LCD panel in
low-power consumption. An 896K-byte large-capacity font ROM is embedded in the S1C88650. This allows
applications to contain fonts for Simplified Chinese characters, Hangul characters and user-defined characters
as well as 11 × 12-dot JIS level-1, JIS level-2 and other kanji fonts without an external expanded font ROM. This
8-bit CPU has up to 16MB accessible address space allowing easy implementation of a large data processing
application. The S1C88650 is suitable for display modules, portable CD/MD, solid audio players, PDA, data
bank and other applications that required an exclusive LCD driver in conventional systems.
■ FEATURES
● Core CPU .............................................. S1C88 (MODEL3) CMOS 8-bit core CPU
● Main (OSC3) oscillation circuit ............. Crystal oscillation circuit/ceramic oscillation circuit 8.2MHz (Max.)
or CR oscillation circuit 2.2MHz (Max.) (∗1)
● Sub (OSC1) oscillation circuit ............... Crystal oscillation circuit 32.768kHz (Typ.) or CR oscillation circuit
200kHz (Max.) (∗1)
● Instruction set ........................................ 608 types (usable for multiplication and division instructions)
● Min. instruction execution time ............. 0.244µsec/8.2MHz (2-clock)
● Internal ROM capacity .......................... Program ROM: 48K bytes
Font ROM:
● Internal RAM capacity ........................... RAM:
896K bytes (can be used for a program/data ROM)
8K bytes
Display memory: 768 bytes
● Bus line ................................................. Address bus:20 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: 3 bits
WR signal: 1 bit
RD signal: 1 bit
(also usable as a general output port
when not used as a bus)
● Input port ............................................... 8 bits (4 bits can be used as the source clock inputs for PWM timers
and 1 bit as a bus request signal input)
● Output port ............................................ 0–3 bits (when the external bus is used)
26 bits (when the external bus is not used)
(1 bit can be configured for the bus acknowledge signal output)
● I/O port .................................................. 8 bits (when the external bus is used)
16 bits (when the external bus is not used)
(shard with serial interface, FOUT and TOUT terminals)
● Serial interface ...................................... 1 ch. (optional clock synchronous system or asynchronous system)
● Timer ..................................................... Programmable timer: 16 bits (8 bits × 2) 4 ch. (with PWM function)
Clock timer:
1 ch.