MB89181FM データシートの表示（PDF） - Fujitsu
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MB89181FM Datasheet PDF : 50 Pages
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MB89180 Series
(Continued)
• Remote control transmission output
• Buzzer output
• Watch prescaler (15 bits)
• External interrupts (wake-up function)
Four independent channels with edge detection function plus eight “L” level-interrupt channels
s PRODUCT LINEUP
Part number
Parameter
MB89181
MB89182
MB89183
MB89P185
MB89PV180
Classification
Mass production products
(mask ROM products)
One-time
PROM product
Piggyback/
evaluation
product (for
evaluation and
development)
ROM size
4 K × 8 bits
(internal mask
ROM)
6 K × 8 bits
(internal mask
ROM)
8 K × 8 bits
(internal mask
ROM)
16K × 8 bits
(internal PROM,
programming
with general-
purpose
EPROM
programmer)
32 K × 8 bits
(external ROM)
RAM size
128 × 8 bits
256 × 8 bits
512 × 8 bits
CPU functions
Number of instructions:
Instruction bit length:
Instruction length:
Data bit length:
Minimum execution time:
Interrupt processing time:
136
8 bits
1 to 3 bytes
1, 8, 16 bits
0.95 µs/4.2 MHz
8.57 µs/4.2 MHz
Ports
I/O ports (N-ch open drain): 8 (6 ports also serve as peripherals, and 3 ports are a
heavy-current drive type.)
Output ports (N-ch open drain): 18 (16 ports also serve as segment pins*1, and 2 ports
serve as booster capacitor connection pins.)
I/O ports (CMOS):
16 (12 ports also serve as an external interrupt, and
8 ports also serve as segment pins*1.)
Output port (CMOS):
1 (also serves as a remote control pin.)
Total:
43 (max.)
8/16-bit timer/
counter
8-bit timer/counter × 2 channels or 16-bit event counter × 1 channel
8-bit serial I/O
8 bits
LSB first/MSB first selectability
LDC controller/driver
Common output:
4 (COM2 and COM3 also serve as output ports.)
Segment output:
32 (max.)*1
Bias power supply pins:
3
LCD display RAM size:
32 × 4 bits
Dividing resistor for LCD driving (external resistor selectability)
External interrupt
(wake-up function)
4 channels (edge selection, also serve as segment pins.)*1
8 channels (only for a level interrupt)
(Continued)
2
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