MB89627RPF データシートの表示（PDF） - Fujitsu

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コンポーネント説明

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MB89627RPF

(MB89660R Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89620R 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 MB89623R, the upper half of the register bank cannot be used.

• On the MB89P627, the program area starts from address 8007H but on the MB89PV620 and MB89627R 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 MB89627R, 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

MB89P627.)

• 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.

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