MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
DATA REQUIRED FOR MASK ORDERS
PROM Programming Method
The following are necessary when ordering a mask ROM produc-
tion:
The built-in PROM of the One Time PROM version (blank) and built-
in EPROM version can be read or programmed with a general-pur-
pose PROM programmer using a special programming adapter.
(1) Mask ROM Order Confirmation Form
(2) Mark Specification Form
Product
Name of Programming Adapter
PCA7401
(3) Data to be written to ROM, in EPROM form (32-pin DIP Type
27C101, three identical copies)
M37270FSP
The PROM of the One Time PROM version (blank) is not tested or
screened in the assembly process and following processes. To en-
sure proper operation after programming, the procedure shown in
Figure 97 is recommended to verify programming.
Programming with
PROM programmer
Screening (Caution)
(150°C for 40 hours)
Verification with
PROM programmer
Functional check in target device
Caution : The screening temperature is far higher
than the storage temperature. Never
expose to 150°C exceeding 100 hours.
Fig. 97. Programming and testing of One Time PROM version
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MITSUBISHI [ Mitsubishi Group ]
