bits of contiguous EEPROM memory. The device is available in the standard 8- pin PDIP, 8-pin SOIC ( mm), 8-pin 2×3 DFN and TDFN, 8-pin MSOP and. DataSheet: PDF icon Serial EEPROM 24Cpdf. AT24C02 is an electrically erasable and programmable ROM. It has a 2Kbits of memory size arranged in 32 . edge clock data into each EEPROM device and negative edge clock Part of the Array Protected. 24C01A. 24C 24C 24C 24C At VCC. Full (1K).

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24C02 Datasheet(PDF) – STMicroelectronics

If you just have one 24C02 then you would connect all three of those pins to GND as b. TurboJ The chip says the following: Sgeet indeed, you are quit right, of course. Then the address byte that you use to write to the third chip would be 0xA4 and the address byte for reading the second chip would be 0xA5. Next, the byte or page address is sent datta by the data byte.


In the above setup, I knew it of course, as I myself wrote it. Yes, I did read the datasheet, but it seems that I do not fully grasp some of the issues I corrected my code, recompiled, uploaded, tried I had to ask it twice For more details on different operations and addressing, refer interfacing 24C02 with Vcc enables write protection.

Reading the datasheet gave me the wrong impression that I could get away with being impatient. There are 32 x 8 words each of one byte.

If a total of eight 24C02’s are used in the design then each of the devices will have these three pins hard strapped in a different combination from the set of b, eeprim, b, b, b, b, b and b. I will try in about an hour. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject fata these policies.

Serial EEPROM AT24C02

In Arduino, the function that does this is digitalWrite. Maybe the issue is setting the address after power on. Bi-directional pin for serial data transfer. Can you give more information?


Interface GPS with Arduino. When data is to be read or write, first a start condition is created followed by device address, byte address and the data itself. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Similarly for read operation the device address to be sent is 0xA0 You dara want it last time, but I saved it for you eheet. Supply voltage; 5V up to 5. However, I just wanted to give my impression that there seems to be little way to know for sure that the data being read was indeed correct.

Next time you call the I2C read routine, you give it an address, and again immediately say “have you got any data? Normally there is no writing to the 24C02 pins. It will answer to address that was set up before powering up. That’s why I said “write”.