M38258MCM Datasheet, PDF (43/70 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
3825 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DATA REQUIRED FOR MASK ORDERS
The following are necessary when ordering a mask ROM produc-
tion:
1.Mask ROM Order Confirmation Form
2.Mark Specification Form
3.Data to be written to ROM, in EPROM form (three identical cop-
ies) or one floppy disk
DATA REQUIRED FOR ROM WRITING
ORDERS
The following are necessary when ordering a ROM writing:
1.ROM Writing Confirmation Form
2.Mark Specification Form
3.Data to be written to ROM, in EPROM form (three identical cop-
ies) or one floppy disk
ROM PROGRAMMING METHOD
The built-in PROM of the blank One Time PROM version and built-
in EPROM version can be read or programmed with a general-
purpose PROM programmer using a special programming
adapter. Set the address of PROM programmer in the user ROM
area.
Table 11. Programming adapter
Package
Name of Programming Adapter
100PFB-A
PCA4738H-100A
100P6Q-A
PCA4738G-100A
100P6S-A
PCA4738F-100A
100D0
PCA4738L-100A
The PROM of the blank One Time PROM version is not tested or
screened in the assembly process and following processes. To en-
sure proper operation after programming, the procedure shown in
Figure 43 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. 43 Programming and testing of One Time PROM version
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