S1C88848 Datasheet, PDF (1/4 Pages) Epson Company – 8-bit Single Chip Microcomputer

S1C88848
8-bit Single Chip Microcomputer
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● Original Architecture Core CPU
● Remote-control Carrier Output
● Dot-matrix LCD Driver
(51×32/66×17/67×16, 8 dots)
■ DESCRIPTION
The S1C88848 microcomputer features the S1C88 (Model 3) CMOS 8-bit core CPU along with ROM, RAM, a
remote-control carrier output, a dot-matrix LCD controller/driver that allows driving of up to 1,632 pixels, three
different timers and a serial interface with optional asynchronization or clock synchronization. The S1C88848 is
fully operable over a wide range of voltages, and can perform stable operations even at low voltage (1.8 V Min.).
Like all the devices in the S1C Family, this microcomputer has low current consumption (1.7 µA at standby
mode). The S1C88848 also contains the SVD circuit for detecting drop of battery voltage, and is most suitable
for remote controllers for home electric appliances.
■ FEATURES
● Core CPU .............................................. S1C88 (MODEL3) CMOS 8-bit core CPU
● Main (OSC3) oscillation circuit ............. Crystal oscillation circuit/ceramic oscillation circuit/CR oscillation
circuit 8.2MHz (Max.) ^(∗1) (start clock source)
● Sub (OSC1) oscillation circuit ............... Crystal oscillation circuit/CR oscillation circuit 32.768kHz (Typ.) ^(∗1)
● Instruction set ........................................ 608 types (usable for multiplication and division instructions)
● Min. instruction execution time ............. 0.244µsec/8.2MHz (2-clock)
● Internal ROM capacity .......................... 48K bytes
● Internal RAM capacity ........................... RAM:
1.5K bytes
Display memory: 402 bytes
● Input port ............................................... 10 bits (2 bits can be configured for event counter external clock
inputs)
Internal pull-up resistors are available ^(∗1)
● Output port ............................................ 5 bits (can be configured for buzzer^∗2, TOUT^∗2, FOUT^∗2 and
infrared remote-control carrier^∗1 outputs)
SEG40–SEG50 are usable as DC output ports ^(∗1)
● I/O port .................................................. 8 bits (4 bits can be configured for serial interface inputs/outputs ^∗2)
Internal pull-up resistors are available ^(∗1)
● LCD driver ............................................. Dot matrix type
51 segments × 32 commons ^{(∗1, ∗2)}
66 segments × 17 commons ^(∗1)
67 segments × 16 commons ^{(∗1, ∗2)}
67 segments × 8 commons ^(∗1)
Built-in LCD power supply circuit (booster type, 5 or 4 potentials)
● Remote controller ................................. Infrared remote-control carrier output or DC output
● Serial interface ...................................... 1 ch. (optional clock synchronous system or asynchronous system ^∗2)
● Programmable timer ............................. 16-bit × 2 ch. or 8-bit × 4 ch.^(∗2), with event counter function
● Clock timer ............................................ 8-bit × 1 ch.
● Stopwatch timer .................................... 8-bit × 1 ch.