M38021M2DXXXFP View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M38021M2DXXXFP

8-BIT SINGLE-CHIP MICROCOMPUTER

MITSUBISHI ELECTRIC  

APPENDIX

3.3 Notes on use

3.3.7 Notes on built-in PROM

(1) Programming adapter

To write or read data into/from the internal PROM, use the dedicated programming adapter and general-purpose

PROM programmer as shown in Table 3.3.1.

Table 3.3.1 Programming adapter

Microcomputer

M38027E8SS

M38027E8SP

(one-time blank)

M38027E8DSP

(one-time blank)

M38027E8FS

M38027E8FP

(one-time blank)

M38027E8DFP

(one-time blank)

Programming adapter

PCA4738S-64A

PCA4738L-64A

PCA4738F-64A

(2) Write and read

In PROM mode, operation is the same as that of the M5M27C256AK and the M5M27C101, but programming

conditions of PROM programmer are not set automatically because there are no internal device ID codes.

Accurately set the following conditions for data write/read. Take care not to apply 21 V to Vpp pin (is also used as

the CNVSS pin), or the product may be permanently damaged.

q Programming voltage : 12.5 V

q Setting of programming adapter switch : refer to table 3.3.2

q Setting of PROM programmer address : refer to table 3.3.3

Table 3.3.2 Setting of programming adapter switch

Programming adapter

PCA4738S-64A

PCA4738L-64A

PCA4738F-64A

SW 1

CMOS

SW 2

CMOS

SW 3

OFF

3-26

3802 GROUP USER’S MANUAL

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