Hi Mike,
With that in mind - I think the best option we have is the SN74CB3Q3251. It is an 8:1 analog mux, GPIO controlled, at a typical On Resistance of ~4 ohms at a 3V supply. It does use a charge pump to achieve low on resistance and input voltage…
Part Number: AM3359 Other Parts Discussed in Thread: SN74CB3Q3251 Hi Ti
We have an issue about SPI design, We know AM3359 have 2xSPI, but we have 7xSPI decide
Our Plan as follows:
1.Share SPI0_MISO/SPI0_MOSI/SPI0_CLK with 7x Devices
2.Connect…
Part Number: SN74CBT3251 Other Parts Discussed in Thread: SN74LV4051A , SN74CBT3253 , SN74CBTLV3251 , SN74CB3Q3251 , Hi team,
Due to shortage of SN74CBT3251RGYR, could you please help compare SN74CBT3251RGYR with SN74CBT3253, SN74LV4051A and SN74CBTLV3251…
Hi Shota,
The TMUX1308 has injection current control which can protect overvoltage on an disabled signal channel from influencing the output from a different input. This isn't a part that offers powered off protection - which is what it sounds like…
Part Number: CD74HC4067 Other Parts Discussed in Thread: TMUX1574 , SN74CB3Q3251 There are ASIC chips with SPI master. We choose one specific ASIC chip with CD74HC4067 MUX. The CLK signal is OK at the master side; however, the signal is distorted after…
Hi Wendy,
Sure, the SN74CBTLV3251 can work for such an application at 50Msps. A similar device you can also use is the SN74CB3Q3251 if you want some more operating bandwidth margin (this device has 500MHz bandwidth versus 200MHz of the CBTLV version…
Kay,
The SN74CB3QXXXX family of switches will support up to 500MHz bandwidth. Do you have a scope shot showing the bandwidth of the SN74CB3Q3251 devices whose -3dB point is <25MHz?
What type of signals are you trying to multiplex?
Do you have a…
Hello,
This device does not support powered off protection on the S/D pins. However, there is support for fail safe logic which is similar to powered off protection, but only applies to the address/logic pins, hence why that related document is presented…
Alberto,
Since these are passive FET switches, Vout is not a valid spec since the voltage on the output of the switch is dependent on the input voltage and the on-state resistance of the FET.
There are three main architectures for bidirectional…
