UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 619

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

The following figure illustrates a flow of rewriting the flash memory by using a self programming sample library.
Figure 24-16. Flow of Self Programming (Rewriting Flash Memory)
Setting operating environment
Start of self programming
End of self programming
Low level
High level
FlashBlockBlankCheck
Normal completion?
Normal completion?
Normal completion?
FlashBlockVerify
FlashWordWrite
CheckFLMD
FLMD0 pin
FLMD0 pin
Yes
FlashStart
Yes
Yes
Yes
FlashEnd
FlashEnv
Erased?
High level
Low level
CHAPTER 24 FLASH MEMORY
User’s Manual U17554EJ4V0UD
No
No
No
No
Normal completion?
FlashBlockErase
No
Yes
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