UPD78F9234MC-5A4-A Datasheet, PDF (274/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 19 FLASH MEMORY
19.1 Features
The internal flash memory of the 78K0S/KB1+ has the following features.
{ Erase/write even without preparing a separate dedicated power supply
{ Capacity: 4 KB/8 KB
• Erase unit: 1 block (256 bytes)
• Write unit: 1 block (at on-board/off-board programming time), 1 byte (at self programming time)
{ Rewriting method
• Rewriting by communication with dedicated flash memory programmer (on-board/off-board programming)
• Rewriting flash memory by user program (self programming)
{ Supports rewriting of the flash memory at on-board/off-board programming time through security functions
{ Supports security functions in block units at self programming time through protect bytes
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User’s Manual U17446EJ5V0UD