MB89T625PFM データシートの表示（PDF） - Fujitsu

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MB89T625PFM

(MB89660 Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89620 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 MB89623, MB89T623, and MB89V623, the upper half of each register bank cannot be used.

• On the MB89P627, the program area starts from address 8006H but on the MB89PV620 and MB89627 starts

from 8000H.

(On the MB89P627, addresses 8000H to 8006H comprise the option setting area, option settings can be read

by reading these addresses. On the MB89PV620 and MB89627, 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

MB89P627A.)

• 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 MB89PV620, add the current consumed by the EPROM which is 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 section

“s Electrical 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 P40 to P47 on the MB89P625, MB89W625, MB89P627, and MB89W627.

• A pull-up resistor is not selectable for P50 to P57 when the A/D converter is used.

• Options are fixed on the MB89PV620.

s CORRESPONDENCE BETWEEN THE MB89620 AND MB89620R SERIES

• The MB89620R series is the reduction version of the MB89620 series.

For their differences, refer to the MB89620R series data sheet.

• The MB89620 and MB89620R series consist of the following products:

MB89620 series MB89623 MB89625 MB89626 MB89P625 MB89P627 MB89W625 MB89W627 MB89PV620

MB89620R series MB89623R MB89625R MB89626R

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