AT24CXX datasheet, AT24CXX circuit, AT24CXX data sheet: ATMEL – 2-Wire Serial EEPROM,alldatasheet, datasheet, Datasheet search site for Electronic. AT24CXX 2-wire Serial Eeprom Features. (VCC (VCC to V) Internally Organized 8 (16K) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for. The AT24Cxx EEPROM carrier board is module for easily adding I2C enabled non-volatile storage to AT24C02 Serial EEPROM ; application/ pdf.

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Also other examples at the Playground use a delay: In what situations is it normally used?

I put together a library to help me keep track of things. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Views Read View source View history. Among which, those of K-bit support serial CMOS E2PROM with I2C bus data transfer protocol, which are electrically erasable, programmable for self-timed writing cycle including auto erase time of no more than 10ms, typical time of 5ms. EEPROMs such as the AT24CXX have a built-in controller to carry out write operations for you; you just provide it with the data you want written and it does the work and tells you when it’s finished.

You need to be careful. Meanwhile, it can convert the measured temperature directly into a serial digital signal for computer to process. Without the delay of 50ms, the device could be busy. Sign up using Email and Password. So it is not the writing that needs a delay, but only the first read after writing. So that’s what I’m using now. DS18B20 digital temperature sensor adopts single-bus technology, which can effectively reduce external interference and improve the measurement accuracy.


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What is paging in EEPROM? – Electrical Engineering Stack Exchange

Paging in this context allows operations such as writing or erasing to be carried out on a number of locations ar24cxx once instead of having to perform each one separately. And if an error occured, some time 5ms should be waited before trying again. Finbarr 3, 1 9 AT24C32, memory bit of which is 32K bit, att24cxx store 8K bytes.

I don’t know what to test else, and I don’t understand the delay. The Playground is a wiki, and this a forum. Both while writing and reading. The art of getting good answers lies in asking good questions. RandallR, I think I found the problem.

In that case, every Wire.

Home Questions Tags Users Unanswered. But it looked like someone needed the code. With simple interface, it makes data transmission and processing much easier.

When using a 5V power supply, the clock can reach KHz. If you save it, you can go to you datasheef created page by clicking on it, and start writing your page. RandallR, Is this the only place where you publish you code?


When you write, you write only to that page. You could add it to the Playground. 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 at24fxx these policies.


I like your code, because it handles the page boundery for me. So the return value doesn’t show an error. That result is also good.

That would increase the code size, but reading and writing would be fast. I checked the return values of the Wire library, and was able to generate some errors.

I have done dxtasheet test with the 24C64A. But is the 50ms delay necessary? The address and data will be transmitted via a two-wire bidirectional serial bus, and the chip can provide information such as seconds, datashfet, hours, etc.

It has a totally different style of writing. A much simpler solution is to change your delay in the loop to 5ms, and add also a delay of 5ms to the other WriteMem function the byte write version. I can’t generate any error. Also, I do not know how to post to the “Playground”. Besides, there is a compensation function for leap year. Retrieved from ” https: I used ReadMem and WriteMem with a buffer. Email Required, but never shown.

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