MB89T635 データシートの表示（PDF） - Fujitsu

部品番号

コンポーネント説明

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MB89T635

(MB89660R Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89630 Series

s DIFFERENCES AMONG PRODUCTS

1. Memory Size

Before evaluating using the piggyback product, verify its differences from the product that will actually be used.

Take particular care on the following points:

On the MB89P637/W637, the program area starts from address 8007H but on the MB89PV630 and MB89637

starts from 8000H.

(On the MB89P637/W637, addresses 8000H to 8006H comprise the option setting area, option settings can be

read by reading these addresses. On the MB89PV630/MB89637, addresses 8000H to 8006H could also be used

as a program ROM. However, do not use these addresses in order to maintain compatibility of the MB89P637/

W637.)

• The stack area, etc., is set at the upper limit of the RAM.

• The external area is used.

2. Current Consumption

• In the case of the MB89PV630, add the current consumed by the EPROM which connected to the top socket.

• When operated at low speed, the product with an OTPROM (one-time PROM) or an EPROM will consume

more current than the product with a mask ROM.

However, the current consumption in sleep/stop modes is the same. (For more information, see sections

“s Electrical Characteristics” and “s Example Characteristics.”)

3. Mask Options

Functions that can be selected as options and how to designate these options vary by the product.

Before using options check section “s Mask Options.”

Take particular care on the following points:

• A pull-up resistor cannot be set for P50 to P53 on the MB89P637 and MB89W637.

• Options are fixed on the MB89PV630, MB89T635, and MB89T637.

s CORRESPONDENCE BETWEEN THE MB89630 AND MB89630R SERIES

• The MB89630R series is the reduction version of the MB89630 series. For their differences, refer to the

MB89630R series data sheet.

• The the MB89630 and MB89630R series consist of the following products:

MB89630 series MB89635 MB89T635 MB89636 MB89637

MB89P637 MB89W637 MB89PV630

MB89630R series MB89635R MB89T635R MB89636R MB89T637R

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