
3
MB89640 Series
s PRODUCT LINEUP
(Continued)
MB89643
MB89645
MB89646
MB89647
MB89P647
MB89PV640
Classification
Mass production products
(mask ROM products)
One-time
PROM product
Piggyback/
evaluation product
for evaluation and
development
ROM size
8 K
× 8 bits
(internal mask
ROM)
16 K
× 8 bits
(internalmask
ROM)
24 K
× 8 bits
(internal mask
ROM)
32 K
× 8 bits
(internalmask
ROM)
32 K
× 8 bits
(internal PROM,
programming with
general-purpose
programmer)
32 K
× 8 bits
(external ROM)
RAM size
256
× 8 bits
512
× 8 bits
768
× 8 bits
1 K
× 8 bits
CPU functions
Number of instructions:
136
Instruction bit length:
8 bits
Instruction length:
1 to 3 bytes
Data bit length:
1, 8, 16 bits
Minimum execution time:
0.4
s/10 MHz to 6.4 s/10 MHz,
or 61.0
s/32.768 kHz
Interrupt processing time:
3.6
s/10 MHz to 57.6 s/10 MHz,
or 562.5
s/32.768 kHz
Ports
Input ports (CMOS):
9 (All also serve as a external interrupt.)
Output ports (CMOS):
8 (All also serve as a bus control.)
I/O ports (CMOS):
24 (8 ports also serve as peripherals,
16 ports also serve as a bus control.)
I/O ports (N-ch open-drain):
8 (All also serve as peripherals.)
Output ports (N-ch open-drain): 16 (8 ports also serve as peripherals.)
Total:
65
Clock timer
21 bits
× 1 (in main clock mode), 15 bits × 1 (at 32.768 kHz)
8-bit PWM
timer
8-bit reload timer operation
× 2 channels
7/8-bit resolution PWM operation
× 2 channels
8-bit PPG operation
× 1 channel
8-bit pulse
width counter
8-bit timer operation (overflow output capable)
8-bit reload timer operation (toggled output capable)
8-bit pulse width measurement operation
(Continuous measurement capable, measurement of “H” width/“L” width/from
↑ to ↓/from ↓ to ↑ capable)
16-bit timer/
counter
16-bit timer operation
16-bit event counter operation
8-bit serial I/O
8 bits
× 2 channels
LSB first/MSB first selectability
One clock selectable from four transfer clocks
(one external shift clock, three internal shift clocks: 0.8
s, 3.2 s, 12.8 s)
8-bit A/D
converter
8-bit resolution
× 8 channels
A/D conversion mode (conversion time: 44 instructions)
Sense mode (conversion time: 12 instructions)
Continuous activation by an external activation or an internal timer capable
Reference voltage input
Part number
Parameter