24C256 PDF

As you can see in the figure above A0, A1 and A2 are the address select bits. However in-case of write operation sub address is bound to page boundary limits. This time is typically not more than 5ms. Following the start condition master sends the slave address and sub address after reeving acknowledge from slave memory.

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As you can see in the figure above A0, A1 and A2 are the address select bits. However in-case of write operation sub address is bound to page boundary limits. This time is typically not more than 5ms. Following the start condition master sends the slave address and sub address after reeving acknowledge from slave memory. Master device will then sends the data to be written to addressed memory location followed by a stop condition on by Master. Page Write A Page write is initiated the same was as byte write operation but master device does not send stop condition after the first data byte, Instead after the first data is acknowledged by EEPROM master can send data continuously upto the page boundary.

This increases the write efficiency of EEPROM as the write cycle take same amount of time for both byte and page write. This can be used to determine when the write cycle is completed.

This will help increase the bus throughput. Once the Stop condition for a Write command has been issued from the master, the device initiates the internally timed write cycle.

If the device is still busy with the write cycle, then no ACK will be returned. If no ACK is returned, then the Start bit and slave address must be resent. If the cycle is complete, then the device will return the ACK and the master can then proceed with the next Read or Write command. I am assuming that AT24C Kbit eeprom is connected to microcontroller.

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Working on 24C256 EEPROM 256Kbit / 32 Kbyte Serial Memory Data Storage on i2C Bus

Follow More by the author: About: I am a physician by trade. After a career in the pharmeceutical world I decided to take it a bit slower and do things I like. Other than my hobbies that involves grassroots medicine in S. I have bu The 24LC holds kilobits of data that is 32 kilobytes. The 24LS can also run on 3. The 24LS uses 3 pins for selection of its address, so you can use up to eight at once on the same bus.

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M24256BWMN6P = AT24C256BN-SH

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