8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23 (AT24C01A/AT24C02/AT24C04 ), 8- lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire. Buy AT24CPU AT24CPU Browse our latest eeprom-memory- chips offers. Free Next Day Delivery. EEPROM Memory IC 4Kb ( x 8) I²C kHz ns 8-TSSOP.

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The IIC at24c004 is limited to depending on the device or kHz and you definitely seem to clock faster. So, how can I access the further 7 blocks of bytes? A0 bit in Device address word, and 8 bits in memory address word.

How is addressing done in DDR memory?

The clock on the I2C bus is “negotiated”. Similar Threads Flash Memory addressing latch up. Part and Inventory Search. You must have JavaScript enabled in your browser to utilize the functionality of this website.

Atmel AT24C04 White PVC Card

We will always give the most realistic and achievable timescales before we take your order. I have bit-banged IIC many times, always using the code in one of the Philips appnotes long ago, do not ask which as a base. Neil Posted 9-Aug A nice, compact piece of code is not only easier for you to debug, but also for others to help you with! Dufour Posted Aug The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential.


If the character which i get from pc is ‘w’ or ‘W’ then i do get data from PC and write to AT24c04 until i get the 0x0D. It’s that deja vu feeling all over again!

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In order to help provide better service to our customers we stock most popular memory, microprocessor and contactless cards. If placing an order online, you may wish to contact us for confirmation of the delivery date. Even though the master floats the clock high, it can still be held low by the slave util it is ready for the next clock. It is typical that the response to a post get all wrong when the code is retyped because unavoidable errors in retyping.

I don’t know what this conflict between ‘int data’ and ‘char data’ you are talking about is af24c04 to be. Fuse Amperage Determination Circuit Ideal for use in storing data in closed loop environments where low security is required.

We also hold readers, printers, consumables and card accessories to enable quick delivery. But i can read any data which i have write to AT24c Initial and final energy stored in a capacitor Initial value depending on the input 8. Dufour I suspect you are seeing the AT24C02 “stretch” the I2C clock at24d04 it stores the data in the shift register into the memory.

Atmel AT24C04 White PVC Card

Need guidance on addressing memory 0. Addressing same memory using different name in C Jonh Bob I had do as your advice, but i can read any things. Neil Oh dear – do you actually write your code like that?


Please note that lead times will vary by product, specific requirements and stock availability. Neil Please see the instructions for posting code: However, when a slave sees the clock transition low, it latches the clock line as well in conjunction with the master.

Potentiometer with At2404 3.

AT24C04 Datasheet pdf – 4K, 2-Wire Bus Serial EEPROM – Atmel

I don’t know exacterly why. Read-Only Author erik malund Posted Aug I mean in my program it’s generate an error such as: Erik anyhow, you can find much help here: If you are in any doubt, please feel free to call us and we will answer any queries you may have. Have you checked the device manufacturer for sample code, or looked at any other examples? Neil “I had do as your advice, but i can read any things. JavaScript seems to be disabled in your browser. Maximum power point in solar converter Furthermore, we package cards using outer corrugated cartons capable of holding cards at a time to fully protect your order whilst in transit.

Neil Posted Aug