20 May 2010

Minor Project - external EEPROM management: some schematic data



The Fritzing diagram for my Minor Project shouldn't be very complicated - it's basically connecting two external 8-pin DIP-packaged external EEPROM chips to the basic Arduino board so that write/read operations can proceed.

On the left is the 24LCxx pinout table.
This is nice because it means i can swap the
24LC08 chips i have now for, say, 24LC256 chips, & all i need to do is change a bit of software!



Just above is how you connect several external EEPROMs on the same I2C bus - each has a connection to the SCL line & the SDA line..


1 comment:

  1. I can hard-wire a couple of 8-pin DIP sockets onto a little shield so that i don't have to mess about with breadboard leads - that's cool!
    Makes shield construction so much simpler.

    I might be flexible with the SDA & SCL connections tho, since it sometimes depends on what Library the Arduino is using as to what pins are connected where..

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