M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 179

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Usage precaution
Figure 1.24.1. Programming and test flow for One Time PROM version
External ROM version
Built-in PROM version
The external ROM version is operated only in microprocessor mode, so be sure to perform the following:
(1) All built-in PROM versions
(2) One Time PROM version
(3) EPROM version
High voltage is required to program to the built-in PROM. Be careful not to apply excessive voltage.
Be especially careful during power-on.
One Time PROM versions shipped in blank (M30620ECFP, M30620ECGP), of which built-in PROMs
are programmed by users, are also provided. For these microcomputers, a programming test and
screening are not performed in the assembly process and the following processes. Therefore ROM
write defectiveness occurs around 5 %. To improve their reliability after programming, we recommend
to program and test as flow shown in Figure 1.24.1 before use.
• Cover the transparent glass window with a shield or others during the read mode because exposing
• Clean the transparent glass before erasing. Fingers’ flat and paste disturb the passage of ultraviolet
• The EPROM version is a tool only for program development (for evaluation), and do not use it for the
to sun light or fluorescent lamp can cause erasing the information.
A shield to cover the transparent window is available from Mitsubishi Electric Corp. Be careful that
the shield does not touch the EPROM lead pins.
rays and may affect badly the erasure capability.
mass product run.
• Connect CNVss pin to Vcc.
• Fix the processor mode bit to “11
Note: Never expose to 150˚C exceeding 100 hours.
Programming with PROM programmer
Function check in target device
Verify test PROM programmer
(Leave at 150˚C for 40 hours)
2
Screening (Note)
”
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Mitsubishi microcomputers
M16C / 62 Group
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