AT24C16A 2/4/8/16K, 2-Wire Bus Serial EePROM. Utilizes Different Array Protection Compared to The AT24C02/04/08 Features. (VCC (VCC to V). AT24C16A datasheet, AT24C16A circuit, AT24C16A data sheet: ATMEL – 2-Wire Serial EEPROM,alldatasheet, datasheet, Datasheet search site for Electronic. AT24C Rev. E–09/ Pin Configurations. Pin Name. Function. A0 – A2. Address Inputs. SDA. Serial Data. SCL. Serial Clock Input. WP. Write Protect. NC.

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The EERandomRead function is defined similarly.

AT24C16A Datasheet PDF

But i still can’t figure that out AT24C16 has bytes per page. See my comment on his answer. It’s a shame to see this question not receiving a few upvotes. It has 8 pages. Are you just writing to page zero? That’s only really for higher speed block transfers.

He’s trying to adapt, the question is reasonable and he needs encouraging. The EEByteWrite function is defined as: By clicking “Post Your Answer”, you acknowledge that you have read our datasheft terms of serviceprivacy policy and cookie policyand that at24c1a continued use of the website is subject to these policies.


According to the datasheet it must have addresses and I should be able to write unsigned int into it [ 1 unsigned int per 2 addresses] but I am only at24d16a to write unsigned ints onto addresses. Roh 2, 5 27 Sign up using Facebook. That’s the limit you are hitting.

Даташиты AT24C16, AT24C16A.

To access more than addresses you will need to write your own routines that control the target chip appropriately. Email Required, but never shown. As you can see the address parameter is an unsigned char which means it can only accept values up to Sign up using Email and Password.

Sign up or log in Sign up using Google. Post as a guest Name. He’s run into a problem in the library routines he is using rather than having a coding error per se. 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 to these policies.


I have tried it but its not working. Home Questions Tags Users Unanswered. The datasheet which I haven’t seen surely shows you the protocol used to address the memory?

I checked the datasheet and found three pins as p0p1p2 meaning page control pins. If you are just writing a single byte at a time you don’t need to worry about pages.

The problem here is actually with the I2C peripheral library, not your code. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

For example see this similar project which describes the I2C protocol. This is a typical trap for the uninitiated and the question is a reasonable one.

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