Hello,
The datasheet does not specifically state what to connect the exposed pad of this part to. I assume you would connect it to ground but i want to confirm.
Thank You,
Kevin
SPI signals are just plain logic signals. You can use any buffer that supports the required voltage and frequency.
I'd recommend the SN74LVC125A for 3.3 V and the SN74AUC125 for lower voltages.
Thanks Clemens,
what's signal frequency for both devices( SN74AUC125 or SN74LVC125A )? do them could be work on 66MHz to 100MHz?
due to i didn't see this information on datasheet, could you help to check it ?
Regards,
Mark
Other Parts Discussed in Thread: SN74LVC125A , SN74AUC125 , TIDA-060017 Hi,
Greetings!
I have this below query!
We are searching an SPI buffer for our application where spi signals go out of the board to another board with cable lenght <1m. Could you please…
In total we are considering the following: Voltage translators & level shifters SN74AXC4T774-Q1 SN74AXC4T245-Q1 SN74AXC4T774 SN74AXCH4T245 SN74LV4T125 SN74AVC4T245-Q1 SN74AVCH4T245-EP SN74AVC4T774 SN74AXC4T245 SN74AVC4T245 SN74AVCH4T245 Buffers, drivers & tra…
One clock cycle consists of two pulses, high and low, which corresponds to two bits. So 80 MHz = 160 Mbps, which is too fast for this device.
Better use a low-voltage logic family like AUC. For level-shifting to a lower voltage, you can simply use a buffer…
Other Parts Discussed in Thread: SN74AUC125 6735.SN74AUC125_Waveform.pdf
Hi,
My customer observed strange behavior with SN74AUC125 as attached. Even though OE is in LOW state and input(A) is LOW, the output(Y) sometimes doesn't go LOW. {Yellow box portion…
SPI uses logic-level signals, so in most cases, you would simply use a logic buffer, something like SN74AUC125 or SN74LVC125A, depending on the voltage, and with the appropriate number of channels.
LVC is optimized for 3.3 V. At 1.8 V, it supports only 40 MHz.
You should use AUC family devices, e.g., SN74AUC125 or SN74AUC34, which support 125 MHz. Furthermore, AUC outputs have additional features to improve signal quality.