SN74LVC125A: SN74LVC125A use in Wifi SDIO interface

GaryC

Intellectual 2615 points

Part Number: SN74LVC125A
Other Parts Discussed in Thread: SN74LVC1G17, SN74LVC244A

May I know the SN74LVC125A can be used in the wifi SDIO interface? does it support >100Mbps(max)?

Thanks.

BR,

Gary

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 243910 points

(Little logic) LVC devices support 100 Mbps (50 MHz) at all supply voltages:

0 GaryC over 4 years ago in reply to Clemens Ladisch

TI__Intellectual 2615 points

Hi Ladisch,

Could you get me a reference part number?

I have check the SN74LVC125A of the Tdp

0 GaryC over 4 years ago in reply to GaryC

TI__Intellectual 2615 points

Hi Ladisch,

Could you get me a reference part number?

I have check the SN74LVC125A of the Tpd is 4.8ns at 3.3V, and the SN74LVC1G17 of the Tpd is 4.6ns at 3.3V. Base on the Tpd performance, both solution can support 200MHz Fmax. May I also suggest the SN74LVC125A to customer? or Could you get me a reference part number? Thanks.

BR,

Gary

0 Clemens Ladisch over 4 years ago in reply to GaryC

Guru 243910 points

All LVC devices, including the SN74LVC125A, support 100 Mbps.

Why are you mentioning 200 MHz? Do you need 400 Mbps?

0 Dylan Hubbard over 4 years ago in reply to Clemens Ladisch

TI__Mastermind 42640 points

Hey Gary,

This device can achieve the data rate you mentioned and it is fine to suggest it for this application.

0 GaryC over 4 years ago in reply to Dylan Hubbard

TI__Intellectual 2615 points

Thanks for your support,

May I learn from you about Fmax? I can find this parameter at the datasheet. Could you let me know I how to know this data or how to calculate it? Thanks.

BR,

Gary

0 Clemens Ladisch over 4 years ago in reply to GaryC

Guru 243910 points

See [FAQ] What is the maximum data rate (or operating frequency) for a logic gate or buffer?

0 GaryC over 4 years ago in reply to Clemens Ladisch

TI__Intellectual 2615 points

May I know the SN74LVC244A also can use in Wifi SDIO interface? Thanks.

BR,

Gary

0 Clemens Ladisch over 4 years ago in reply to GaryC

Guru 243910 points

For practical purposes, '125 and '244 have the same speed.

Logic

Logic forum

SN74LVC125A: SN74LVC125A use in Wifi SDIO interface