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hi,
we are working on something like
http://e2e.ti.com/support/switches-multiplexers/f/388/t/837881
Is there something similar to TS3A27518E, dedicated for 8-bit SDIO/eMMC memory ?
We need to switch eMMC between MCU and USB bridge – dual-host use scenario.
thanks a lot in advance
have a great day
KR
Vincenzo
Hi Vincenzo,
Do you need 8 total data lanes and clock lanes you would like to switch?
What is the configuration you are looking for - is it 2:1?
Can you also specify the voltage range of the signals - I believe MMC supports 1.2 V - 3.3 V
How much data rate you need for your application? I believe eMMC supports up to 200Mbps. We recommend switch bandwidth be 1.5 x the data rate. For 200Mbps we would recommend a switch with 300MHz
You can use the TI.com switch selection tool and filter for these devices. For example a 4-channel, 2:1, 1.8V, and >300 MHz bandwidth would return the TMUX1574. If you need an 8-channel solution with same configuration, you can use 2 of these muxes.
regards,
Saminah
hi Saminah,
I see.
Unfortunately we need 10 lines (8-bit data + 1 clk + 1 cmd).
Is there any dedicated IC or a sinlge chip solution?
thanks a lot in advance
KR
Vincenzo
Hi Vincenzo,
We have some 10 channel switches with 1:1 configuration. Here is a list when you search in the device search tool:
Depending on your voltage range and sorting on the bandwidth, you can see if it fits your application.
Thanks
Saminah