MB89150/150A Series
(Continued)
• Buzzer output
• Watch prescaler (15 bits)
• External interrupts (wake-up function)
Four independent channels with edge detection function plus eight level-interrupt channels
■ PRODUCT LINEUP
Part number
MB89151/A
MB89152/A MB89153/A MB89154/A MB89155/A MB89P155 MB89PV150
Parameter
Piggyback/
evaluation
product (for
evaluationand
development)
Classification
One-time
PROM
product
Mass production products
(mask ROM products)
ROM size
4 K × 8 bits 6 K × 8 bits 8 K × 8 bits 12K × 8bits 16 K × 8 bits 16 K × 8 bits 32 K × 8 bits
(internal
(internal
(internal
(internal
(internal
(internal
(external
ROM)
PROM,
mask ROM) mask ROM) mask ROM) mask ROM) mask ROM)
programming
with general-
purpose
EPROM
programmer)
RAM size
128 × 8 bits
Number of instructions:
256 × 8 bits
136
512 × 8 bits
CPU functions
Instruction bit length:
Instruction length:
Data bit length:
Minimum execution time:
Interrupt processing time:
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 port (N-ch open-drain):
8 (6 ports also serve as peripherals, 3 ports
are a high-current drive type.)
Output port (N-ch open-drain): 18 (16 ports also serve as segment pins, 2 ports
serve as boost capacitor connection pins.)*1
16 (12 ports also serve as an external interrupt.)
1 (Also serves as a remote control.)
43 (max.)
I/O port (CMOS):
Output port (CMOS):
Total:
Timer/counter
8-bit serial I/O
8-bit timer counter × 2 channel or 16-bit event counter × 1 channel
8 bits
LSB first/MSB first selectability
LCD controller/
driver
Common output:
Segment output:
4
No reference
voltage
32 (max.)*1
Bias power supply pins:
LCD display RAM size:
Booster for LCD driving:
Dividing resistor for LCD driving:
4
generator
and booster
for LCD
36 × 4 bits
Built-in*1
driving
Built-in (an external resistor selectability)
External
interrupts
(wake-up function)
4 (edge selectability)
8 (level interrupt only)
Buzzer output
1 (7 frequencies are selectable by the software.)
(Continued)
2