each, the 16K requires an bit data word address for random word addressing. WP Pin. Status. Part of the Array Protected. 24C01A. 24C 24C 24C08A. 24C04 EEPROM are available at Mouser Electronics. Mouser offers For: 24C Obsolete. Microchip Technology / Atmel, EEPROM 7 MILS V – 10MS V. Read about ’24C04 Interfacing issue’ on elementcom. Hey there,I am trying to interface the AT24C04 4K EEPROM with Atmega

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24C04 Datasheet PDF

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The information in this document is provided in connection with Atmel products.

Sign up or log in Sign up using Google. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Found 8 device s. On top of that I have never been sure that it is even possible to dynamically change the strapped value on the A0, A1 and A2 pins of a 24C02 after it has powered up.

If a total of eight 24C02’s are used in the design then each of the devices will have these three pins hard strapped in a different combination from the set of b, b, b, b, b, b, b and b. In figure 4 they refer to the address as an 8-bit quantity: It will answer to address that was set up before powering up.


TurboJ The chip 24cc04 the following: Atmel Corporation makes nowarranty which is detailed in Atmel ‘s Terms and Conditions located on the Company’s web site.

Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in.

Sign up using Email and Password. Can’t change the values dynamically. No license, express or implied, by estoppel or otherwise, to any. It considers the value of the A0,A1 and A2 before the power 24cc04 and sticks to it till reset. Previous 1 2 RoomJapan Atmel Japan K. I will try in about an hour.

Atmel Corporation makes no warranty for the use. Maybe the issue is setting the address after power on. Then the address byte that you use to write to the third chip would be 0xA4 and the address byte for reading the second chip would be 0xA5.


When you say that you are “writing” to the pins this does not make clear exactly what you are doing. Sign up using Facebook. Even the data sheet that you linked can lead to confusion in this regard. Normally there is no writing to the 24C02 pins. The Company assumes no. Instead the three bits that you supply out on the interface in the device address field must match the hard strapped values on the pins in order for the device to be atmep.

A2 are used for creating the address. MO footprint tai 24c02 atmel 24c02 atmel 24c04 tai 24c04 at24c01atsi pin configurations of 24c04 1 24c04 Atmel atmel 24c16 Text: The information in this document is provided in connection with Atmel.

You do not write the addresses; you hardwire them.

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10pcs AT24C04 24c04 Serial EEPROM Sop-8 Atmel | eBay

Is there something else I need to do? Also be aware that the A0 to A2 pins on the device package are meant to remain static in a design. In Arduino, the function that does this is digitalWrite. In figure 4 they refer to the address as an 8-bit quantity:. This device is not recommended for new designs. Full 2K Array 24C04 1.

That’s why I said “write”. Check your chips markings. MaNyYaCk 6 Atmel Corporation makes no warranty for the. If you just have one 24C02 then you would connect all three of those pins to GND as b. The device will not respond to the address that is being set dynamically. Then when you want to write to the part use an address byte of 0xA0 and when you want to read use an address byte of 0xA1.

Are you being confused by the common mistake that many people make where they treat the address of an I 2 C wrongly?

AT24C04 24C04 ATMEL DIP8 EEPROM 4K 2-WIRE 1M CYCLES – 10MS 1.8V 50PCS/LOT & Free Shipping

Can you give more information? Can you explain what hardwiring is? Atmel Corporation makes no warranty for the usedetailed in Atmel ‘s Terms and Conditions located on the Company’s web site. But my suggestion would to directly 24×04 them to ground or VCC for the addressing scheme. This output is from I2C scanner. Post as a guest Name.