TLK110: variable I/O voltage range

Alari Rotka

Part Number: TLK110

Hello,

I've noticed that the TLK110 supports variable I/O voltage range: 1.8V to 3.3V.

If VDD_IO is supplied with 1.8V, what signals/pins will operate in 1.8V voltage range? All TX and RX (MII/RMII) signals including the clock?

I want to use the TLK110 with MII interface to communicate with the FPGA using LVCMOS18 standard without any level converters.

over 8 years ago

0 Rob Rodrigues over 8 years ago

TI__Mastermind 19780 points

Hi Alari,

You are correct, the LEDs, GPIO pins, control pins, and MII/RMII pins will operate at VDD_IO = 1.8 V if you supply it.

If you want to interface with LVCMOS18, then you'd apply 1.8 V to VDD_IO.

Best Regards,

Interface

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TLK110: variable I/O voltage range