M37640E8FP 查看數據表（PDF） - Mitsumi

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M37640E8FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Mitsumi 

Ver 1.4

MITSUBISHI MICROCOMPUTERS

7640 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

DATA REQUIRED FOR MASK ORDERS

ROM PROGRAMMING METHOD

The following are necessary when ordering a mask

ROM production:

1. Mask ROM Order Confirmation Form

2. Mark Specification Form

3. Data to be written to ROM, in EPROM form

three identical copies) or in floppy disk form.

The built-in PROM of the blank One-time PROM ver-

sion and built-in EPROM version can be read or

programmed with a general-purpose PROM program-

mer using a special programming adapter. (See Table

2.6).

Table 2.6. Programming adapter

Package

80P6N-A

80D0

Name of Programming Adapter

PCA7440FP

PCA7440FS

The PROM of the blank One Time PROM version is

not tested or screened in the assembly process and

following processes. To ensure proper operation after

programming, the procedure shown in Figure 2.8 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. 2.8. Programming and testing of One-Time PROM version

90

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