MB89485LPFM 데이터 시트보기 (PDF) - Fujitsu

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MB89485LPFM

(MB89490 Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89480/480L Series

s PRODUCT LINEUP

Part number

MB89485L

Parameter

MB89485 MB89P485L MB89P485

MB89PV480

Classification

Mass production products

(mask ROM product)

OTP

Piggy-back

ROM size

16K x 8-bit (internal ROM)

16K x 8-bit (internal PROM

with read protection) *2

32K x 8-bit

(external ROM)*1

RAM size

512 x 8-bit

1K × 8-bit

CPU functions

Number of instructions

Instruction bit length

Instruction length

Data bit length

Minimum execution time

Minimum interrupt processing time

: 136

: 8 bits

: 1 to 3 bytes

: 1, 8, 16 bits

: 0.32 µs at 12.5 MHz

: 2.88 µs at 12.5 MHz

Ports

I/O ports (CMOS)

N-channel open drain I/O ports

Output ports (N-channel open drain)

Input port

Total

: 11 pins

: 28 pins

: 2 pins

: 1 pin

: 42 pins

21-bit timebase

timer

Interrupt period (0.66 ms, 2.6 ms, 21.0 ms, 335.5 ms) at 12.5 MHz.

Watchdog timer

Reset period (167.8 ms to 335.5 ms) at 12.5 MHz.

Pulse width count

timer

1 channel.

8-bit one-shot timer operation (supports underflow output, operating clock period: 1, 4, 32 tinst,

external).

8-bit reload timer operation (supports square wave output, operating clock period: 1, 4, 32 tinst,

external).

8-bit pulse width measurement operation (supports continuous measurement, H width,

L width, rising edge to rising edge, falling edge to falling edge measurement and both edge

measurement).

PWM timer

8-bit reload timer operation (supports square wave output, operating clock period: 1, 4, 32 tinst,

external).

8-bit resolution PWM operation.

6- bit programmable

pulse generator

Can generate square pulse with programmable period.

Can be operated either as a 2-channel 8-bit timer/counter (timer 11 and timer 12, each with its

8/16-bit timer/counter own independent operating clock cycle), or as one 16-bit timer/counter.

11, 12

In timer 11 or 16-bit timer/counter operation, event counter operation (external clock-triggered)

and square wave output capability.

Can be operated either as a 2-channel 8-bit timer/counter (timer 21 and timer 22, each with its

8/16-bit timer/counter own independent operating clock cycle), or as one 16-bit timer/counter.

21, 22

In timer 21 or 16-bit timer/counter operation, event counter operation (external clock-triggered)

and square wave output capability.

External interrupt

4 independent channels (selectable edge, interrupt vector, request flag).

8 channels (low level interrupt).

(Continued)

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