SN74LV4052A: SPI INTERFACE MUX

SUJIN CHALIL

Part Number: SN74LV4052A
Other Parts Discussed in Thread: SN74CB3Q3253, TMUX1309

Hi,
Is it possible to use this IC for SPI interface muxing? If you have a better solution, please suggest.

Thank you for your continued support!..

over 2 years ago

0 Clemens Ladisch over 2 years ago

Guru 266610 points

Doesn't have SPI more than two signals?

How many signals, how many sources to mux, at what voltage, at what frequency?

+1 SUJIN CHALIL over 2 years ago in reply to Clemens Ladisch

Prodigy 50 points

Hi Clemens Ladisch,

We need to control 3 SPI ICs using the same pins in an SoC. We will be using 2 1:4 MUX IC's for Clock, MISO, MOSI, (Chip Select) will be connected directly. The max clock frequency that we use is 15MHz. Attached image for your reference. The voltage level is 3.3 Volt.

0 Tyler McGuire over 2 years ago

TI__Expert 3515 points

Hi Sujin,

The SN74LV4052A is a good fit for this application based on the configuration, voltage, and frequency you provided.

TMUX1309 and SN74CB3Q3253 are also options that both have higher bandwidth and more features.

Thanks,

Tyler

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SN74LV4052A: SPI INTERFACE MUX