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TM4C129DNCZAD: MCU selection

Part Number: TM4C129DNCZAD

Hi Experts,

I am supporting a customer who wants to connect 8 I2C sensors. He is looking for MCU available which can support an 8x I2C port.

He said he doesn't need to bit-bash the I2C method or master-slave method. He needs an 8x I2C port.

I initially suggested the Tiva series MCU. But this MCU does not support "3DES – 56/112/168-bit key sizes".

I hope you can help. Thank you.

Best regards,


  • Hi,

     See below part numbers that have 10 I2C modules and AES/DES.

    Per the datasheet, the DES module supports key length of effective 168bits. If this does not meet customer's requirement that we don't have a suitable Tiva MCU for them.