Renesas PCA7438F-80A - Manual (Page 11)

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4.2 Selecting a PROM Programmer Connector
Select a PROM programmer connector (PCA7402D or PCA7402E) according to the ROM capacity
of your MCU.
(1) For MCU 32KB or less: PCA7402D (for 256K bit mode)
(2) For MCU 32KB or more: PCA7402E (for 1M bit mode)
e.g.) For the M38B59EFFP and M38B59EFFS, use the PCA7402E.
Figure 4.1 shows the PROM programmer connectors.
Figure 4.1 Selecting a PROM programmer connector