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Experimenter
- 7th September 2014, 14:22
Hi,
I am looking to better the 18F46K22 for internal data-EEPROM capacity - which at 1kbyte is already quite large.
A trip round the forum and Microchip's 'Configurator' shows nothing bigger.
Is anyone aware of an 18F with this parameter >1 kbyte at 8-bits wide ?
Thank you!

towlerg
- 7th September 2014, 16:58
SPI eeprom is cheap and easy to use, dont let that discount otherwise more appropriate PICs

longpole001
- 8th September 2014, 00:12
flash is also an option depending on your change / retention requirements , also very cheep

rsocor01
- 8th September 2014, 01:28
Like towlerg already said above, the external SPI EEPROM is the way to go. It is also easy to implement.

pedja089
- 8th September 2014, 09:07
You can use PIC internal FLASH memory to store data, using READCODE/WRITECODE/ERASECODE.

towlerg
- 10th September 2014, 02:10
You can use PIC internal FLASH memory to store data, using READCODE/WRITECODE/ERASECODE.

True, but be aware of limitations of write operations to code memory.

Experimenter
- 11th September 2014, 10:50
Many thanks, friends, for the collective advice - all of it valuable.

You have solved the problem!

For this particular application, the writecode/readcode will get me out of trouble for prototyping; and in the revised circuit board I will use an external EEPROM.