MB89485L 데이터 시트보기 (PDF) - Fujitsu

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MB89485L

(MB89490 Series) 8-bit Proprietary Microcontroller

Fujitsu 

MB89480/480L Series

s PROGRAMMING OTPROM IN MB89P485/P485L WITH SERIAL PROGRAMMER

1. Programming the OTPROM with Serial Programmer

• All OTP products can be programmed with serial programmer.

2. Programming the OTPROM

• To program the OTPROM using FUJITSU MCU programmer MB91919-001.

Inquiry : Fujitsu Microelectronics Asia Pte Ltd. :TEL (65)-2810770

FAX (65)-2810220

3. Programming Adapter for OTPROM

• To program the OTPROM using FUJITSU MCU programmer MB91919-001, use the programming adapter

listed below.

Package

Compatible socket adapter

DIP-64P-M01

MB91919-812

FPT-64P-M09

MB91919-813

Inquiry : Fujitsu Microelectronics Asia Pte Ltd. : TEL (65)-2810770

FAX (65)-2810220

4. OTPROM Content Protection

For product with OTPROM content protection feature (MB89P485/P485L-103, MB89P485/P485L-104), OT-

PROM content can be read using serial programmer if the OTPROM content protection mechanism is not

activated.

One predefined area of the OTPROM (FFFCH) is assigned to be used for preventing the read access of OTPROM

content. If the protection code "00H" is written in this address (FFFCH), the OTPROM content cannot be read by

any serial programmer.

Note: The program written into the OTPROM cannot be verified once the OTPROM protection code is written ("00H"

in FFFCH). It is advised to write the OTPROM protection code at last.

5. Programming Yield

All bits cannot be programmed at Fujitsu shipping test to a blanked OTPROM microcomputer, due to its nature.

For this reason, a programming yield of 100% cannot be assured at all times.

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