Hi all
I am using Arduino Nano (5v 16MHz), and looking to add a RAM Chip near it.
Can anyone please recommend some kind of RAM Chip that works on 5v?
Hopefully there is one..
Thank you
Hi all
I am using Arduino Nano (5v 16MHz), and looking to add a RAM Chip near it.
Can anyone please recommend some kind of RAM Chip that works on 5v?
Hopefully there is one..
Thank you
Have you got enough spare pins to drive a RAM chip?
What are you trying to do?
AWOL:
Have you got enough spare pins to drive a RAM chip?
How many GPIO legs are needed?
I am not looking for a RAM chip that communicates in Parallel (e.g. 8 GPIO legs)..
Ideally it will be SPI, or even I2C if possible
How many bits of RAM do you need?
What are you trying to do?
AWOL:
How many bits of RAM do you need?
Well,
the Arduino Nano has 2KB, so anything more than that would be nicer.
Is there any 5v RAM chip that can be used?
Like this?
Yes looks really nice, and it's even I2C so it is 2 Legs instead of 4..
Just the price is high..
I will look for this MB85RC256V chip in eBay, hopefully it's cheaper there...
Thank you very much
They write:
Unlike SRAM, the MB85RC256V is able to retain data without using a data backup battery.
If it doesn't lose its data when not powered, then it seems more like an EEPROM/Flash than like a RAM no?
So I wonder why the "RAM" in FRAM?
How is it different for example than the ATmega AT24C256 chip, which is also 32KB, just EEPROM?
More erase/write cycles.
Faster too, IIRC
card5:
So I wonder why the "RAM" in FRAM?
Simple, RAM stands for Random Access Memory
FRAMs of that type are random access, you dont need to read it in a serial fashion, you can access location 0x123 in a single byte read, then location 0x234 etc.