How many records can be stored in 24C512 EEPROM ?

[rvkei11]

Hi all,

I interfaced the 24C512 EEPROM, with my controller. I want to store a 16 digit character string in the EEPROM(Single record).
It is organized as 65536 words of 8 bits.

How many records i can store it? Any efficient methods are there to store and retirve?


Thanks in advance.

 

[neddie]

EEprom = 65535 bytes in size.
Record = 16 bytes in size.
Not to difficult to find out how many records can be stored in eeprom. 4096 records.
Are you writing in 'c' ?
If so record 0 ,or your first record at location 0 in eeprom. Record x at (x * sizeof(record)) in eeprom.

 

[alexan_e]

16 digit character is 16 bytes = 128 bits, you can do the math
If you need more space you can use a flash like these Atmel Products - Serial Flash ,
or write to an mmc/sd card using spi

Alex

 

[neddie]

Hi Alex.
I see "16 digit character string" as being = "thisisxbyteslong" , a string of characters. That is 16 bytes.
If he means it the way you suggest , then obviously you are correct.
Maybe "rvkei11" should post a sample of what he is trying to store in eeprom.
:0)

 

[alexan_e]

a string in C is defined as a sequence of characters (char array)
so when he says 16 digit character string i assume he means a string of 16 characters.

Alex