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24LC32 Pins
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24LC32 Pins

by rubble on Fri Jan 21, 2022 9:50 am

I understand most of the pins on the board except WP, A0, A1 A2

WP - Write protect, do I have to use this and how to use if I want?

A0, A1, A2 - Analog/digital inputs?

rubble
 
Posts: 24
Joined: Fri Mar 14, 2014 5:46 am

Re: 24LC32 Pins

by rubble on Fri Jan 21, 2022 1:03 pm

I have just found the Microchip datasheet:
7.1 A0, A1, A2 Chip Address Inputs
The A0..A2 inputs are used by the 24LC32 for multiple
device operation and conform to the two-wire bus standard. The levels applied to these pins define the
address block occupied by the device in the address
map. A particular device is selected by transmitting the
corresponding bits (A2, A1, A0) in the control byte


Which is a shame as I could have done with another Input on my circuit

From Adafruit pcb git:
The default I2C address is 0x50 and there are three external address pins / jumpers to allow addressing of up to eight EEPROM devices on the same bus.

rubble
 
Posts: 24
Joined: Fri Mar 14, 2014 5:46 am

Please be positive and constructive with your questions and comments.