SN74LVC125A: SN74LVC125A the buffer you chosse can support this frequency?

peng wei

Part Number: SN74LVC125A

Hi :

we used the MX0_MDC frequency is around 2 MHz, one MAC MDC signal input ，four PHY MDC output;

Thus, we need make sure SN74LVC125A the buffer you chosse can support this frequency?

Exp:

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 318230 points

Yes; LVC can do 175 MHz at 3.3 V.

0 ShreyasRao over 5 years ago

As Clemens mentioned, the LVC can handle >2Mhz operating at 3.3Vcc providing 24mA drive for fanout.

What about the MDIO lines? Are there any considerations for that?

0 peng wei over 5 years ago in reply to ShreyasRao

What about the MDIO lines? Are there any considerations for that?

Reply-->MDIO signal quality is good，layout using daisy chain way，satisfy ASIC chip datasheet request；

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