參數(shù)資料
型號(hào)： MB89P955PFM
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 5 MHz, MICROCONTROLLER, PQFP64
封裝： 0.65 MM PITCH, QFP-64
文件頁(yè)數(shù)： 5/40頁(yè)
文件大?。?/td> 600K
代理商： MB89P955PFM
MB89950 Series
13
s PROGRAMMING TO THE EPROM ON THE MB89P955
The MB89P955 is an OTPROM version of the MB89950 series.
1. Features
16-Kbyte PROM on chip
Equivalency to the MBM27C256A in EPROM mode (when programmed with the EPROM programmer)
2. Memory Space
Memory space in EPROM mode is diagrammed below.
3. Programming to the EPPROM
Functions equivalent to the MBM27C256A can be used in the MB89P955 EPROM mode. Accordingly, the user
can write data with a general-purpose EPROM writer by using a dedicated adapter. Note that the electrical
signature mode is not supported.
Programming procedure
(1) Set the EPROM writer for the MBM27C256A.
(2) Load program data from 4000H to 7FFFH of the EPROM writer (Note that 0C000H to 0FFFFH in the operation
mode are equivalent to 4000H to 7FFFH in the EPROM mode).
Load option data from 3FF0H to 3FF6H of the EPROM writer (See Bit Map on the next page for the
correspondence to each option).
(3) Write the data with the EPROM writer.
0000H
Not available
PROM
16 KB
0080H
0280H
8000H
BFF0H
BFF6H
FFFFH
C000H
3FF0H
3FF7H
4000H
7FFFH
EPROM
16 KB
Vacancy
(Read value FFH)
Option area
Vacancy
(Read value FFH)
Single chip
EPROM mode
(Corresponding addresses on the EPROM programmer)
I/O
RAM
Not available
Option area
Not available
Address
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