DATASHEET 24C08 PDF

24C08 Technical Data, 24C08 x8(8k) Serial CMOS EEPROM Datasheet, buy 24C I²C uses a two-wire serial interface, comprising a bi-directional data line and a clock line. The devices carry a built-in 4-bit Device Type Identifier. 1 MILLION ERASE/WRITE CYCLES with. 40 YEARS DATA RETENTION. SINGLE SUPPLY VOLTAGE: – 3V to V for ST24x08 versions. – V to V for.

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24C08 PDF Datasheet浏览和下载

Datashee browsing this forum: Google [Bot] and 1 guest. Mon Dec 31, 8: Tue Dec 10, 4: I’m writing 8 bytes at a time.

I’ve made sure that I don’t cross page boundaries during a write. I’ve attached the relevant sections Tue Dec 10, 8: Is your chip set correctly? Tue Dec 10, Hi Tomas, I couldn’t find the mode pin you mentioned.

24C08 DATASHEET DOWNLOAD

I’m assuming that you are referring to pin 7 which is the ‘WP” pin. It lets you write protect the chip to turn it into datasgeet ROM only. I wonder if I’m using the wrong datasheet: Wed Dec 11, Hi Stuart, it is possible that we are both looking at different part. I’ve read several datasheets for the 24C08 and I was quite surprised how different these parts can be.

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24C08 Datasheet(PDF) – STMicroelectronics

You’re right that pin 7 is usually a WP pin. My previous post is based on a datasheet from ST: You should also use a few milliseconds delay after initializing the I2C module, since it needs some time to settle and if datadheet start sending data immediately after the initialization, they can be corrupted.

If you have a logic analyzer with I2C decoder, now is its time. But try fixing the multiple initializations first, It may help.

24C08 EEPROM Memory

Wed Dec 11, 1: Dataasheet Tomas, The initialization routines are commented out so that’s not the issue. I was only using them when I was testing the code and forgot to remove the line.

I only run the init once at the beginning of my program. It shows pin 7 soldered to ground on the Easy Pic schematic. I’m going to try to break out my logic analyzer and see what’s going on those I2C lines.

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Thanks for your help, Stuart. Wed Dec 11, 2: Ah, haven’t noticed that they are commented, sorry.

Then there is no obvious problem in your code. Anyway, the analyzer will tell you what’s happening. That chip dataeheet by mE has indeed WP on its pin 7 seems to be more typical variant and the EasyPIC v7 board is keeping the write protection disabled.

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