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3.2 Selecting a Connector
Select the connector depending on the type of the MCU as described in Table 3.1 and Figure 3.1
below.
Table 3.1 Selecting connector

Notes:

*No selection is required for the PCA4738S-42A and PCA4738F-42A. (The PCA7402E connec-
tor is already attached.)
*For the MCU whose internal ROM is 32 KB or less, the applicable adapter (PCA4738D/
PCA7402D or PCA4738E/PCA7402E) depends on its device (M5M27C256A mode or
M5M27C101 mode). For each matching device of the MCU, refer to Tables 3.6 to 3.9 on pages
16 to 18.
Figure 3.1 Selecting a connector
Conditions MCU
M375XXE1/E2/E3/E4
M375XXE5/E6/E7/E8
M38XXXE1/E2/E3/E4
M38XXXE5/E6/E7/E8
M375XXE9/EA/EB/EC
M375XXED/EE/EF
M38XXXE9/EA/EB/EC
M38XXXED/EE/EF
Applicable connector
32 KB
or less
Over
32 KB
M5M27C256A mode
MCU's
programming
mode M5M27C101 mode
PCA4738D or PCA7402D
PCA4738E or PCA7402E
IC socket
(made by Yamaichi Elecreonics Co., Ltd.)
Main unit
Interface unit
32-pin type connector28-pin type connector