S1C88848 Datasheet, PDF (2/4 Pages) Epson Company – 8-bit Single Chip Microcomputer

S1C88848
● Sound generator ................................... Envelope function, equipped with volume control
● Watchdog timer .....................................Built-in
● Supply voltage detection (SVD) circuit .... 16 value programmable (1.8V to 4.35V) ^(∗2)
● Interrupt ................................................. External interrupt: Input port interrupt
2 systems (3 types)
Internal interrupt: Clock timer interrupt
1 system (4 types)
Stopwatch timer interrupt
1 system (3 types)
Programmable timer interrupt 2 systems (4 types)
Serial interface interrupt
1 system (3 types)
Remote-control output interrupt 1 system (1 type)
● Supply voltage ...................................... 1.8V to 5.5V ^(∗3)
● Current consumption (Typ.) .................. SLEEP mode:
1µA
HALT mode (32kHz crystal oscillation): 1.7µA
HALT mode (8.2MHz ceramic oscillation): 100µA
Run (32kHz crystal oscillation):
4µA
Run (8.2MHz ceramic oscillation):
700µA
● Supply form ........................................... QFP15-128pin or chip
∗1 Mask option
∗2 Software selection
∗3 A supply voltage of less than 2.4 V affects the LCD contrast.
■ BLOCK DIAGRAM
OSC1, 2
OSC3, 4
RESET
TEST
VDD
VSS
VD1, VC1–VC5
CA–CG
Core CPU S1C88
Oscillator
Reset/Test
Watchdog Timer
Clock Timer
Stopwatch Timer
Power Generator
Supply Voltage Detector
RAM
1.5K bytes
ROM
48K bytes
Interrupt Controller
Input Port
I/O Port
Serial Interface
Programmable Timer
/Event Counter
Remote Controller
Sound Generator
Output Port
LCD Driver
K00–K07
K10, K11
(EVIN0, EVIN2)
P14–P17
P10 (SIN)
P11 (SOUT)
P12 (SCLK)
P13 (SRDY)
R26 (TOUT/REM *)
R27 (TOUT)
R34 (FOUT)
R50 (BZ)
R51 (BZ *)
∗ Selectable
by mask option
SEG0–SEG50
COM0–COM15
COM16–COM31
(SEG66–SEG51)
2