![](http://datasheet.mmic.net.cn/330000/MB89498PFV_datasheet_16436901/MB89498PFV_3.png)
MB89490 Series
3
I
PRODUCT LINEUP
(Continued)
Part number
Parameter
MB89498
MB89F499
MB89PV490
Classification
Mass production products
(mask ROM product)
FLASH
Piggy-back
(For evaluation or
development)
60 K
×
8-bit
(external ROM) *
1
2 K
×
8-bit
ROM size
48 K
×
8-bit
(internal ROM)
2 K
×
8-bit
60 K
×
8-bit
(internal FLASH)
2 K
×
8-bit
: 136
: 8-bit
: 1 to 3 bytes
: 1-bit, 8-bit, 16-bit
: 0.32
μ
s/12.5 MHz
:
2.88
μ
s
/
12.5 MHz
: 56 pins
: 2 pins
: 8 pins
:
66 pins
RAM size
CPU functions
Number of instructions
Instruction bit length
Instruction length
Data bit length
Minimum instruction execution time
Minimum interrupt processing time
Ports
General-purpose I/O ports (CMOS)
Input ports (CMOS)
N-channel open drain I/O ports
Total
21-bit timebase
timer
Interrupt generation cycle (0.66 ms, 2.6 ms, 21.0 ms, 335.5 ms) at 12.5 MHz
Watchdog timer
Reset generation cycle (167.8 ms to 335.5 ms) at 12.5 MHz
PWM timer 0, 1
8-bit reload timer operation (supports square wave output and operating clock period :
1 t
inst
, 8 t
inst
, 16 t
inst
, 64 t
inst
)
8-bit accuracy PWM operation
8/16-bit timer/counter
00, 01
Can be operated either as a 2-channel 8-bit timer/counter (timer 00 and timer 01, each
with its own independent operating clock) , or as one 16-bit timer/counter.
In timer 00 or 16-bit timer/counter operation, event counter operation by external clock
input and square wave output capability
8/16-bit timer/counter
10, 11
Can be operated either as a 2-channel 8-bit timer/counter (timer 10 and timer 11, each
with its own independent operating clock) , or as one 16-bit timer/counter.
In timer 10-bit or 16-bit timer/counter operation, event counter operation by external clock
input and square wave output capability
External interrupt 0
(edge)
8 independent channels (selectable edge, interrupt vector, request flag)
External interrupt 1
(level)
8 channels (low level interrupt)
A/D converter
10-bit accuracy
×
8 channels
A/D conversion function (conversion time : 30 t
inst
)
Supports repeated activation by internal clock
LCD controller/driver
Common output
Segment output
LCD driving power (bias) pins
LCD display RAM size
: 4 (Max)
: 32 (Max)
: 3
: 32
×
4 bits