Hi team,
For the device SN74CBTLV3257, Whether it the VIH VIL is only related to the blue square? For the red square, we don't have the voltage requirement, correct?
BTW: What's the data rate of device? Can we get it with the Tpd?
Thanks.
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Hi team,
For the device SN74CBTLV3257, Whether it the VIH VIL is only related to the blue square? For the red square, we don't have the voltage requirement, correct?
BTW: What's the data rate of device? Can we get it with the Tpd?
Thanks.
Hi Frank,
VIH/VIL refer to only the digital pins, so yes, only the pins in the Blue Square are affected by this.
The pins in the Red Square are analog Transmission gates, see below for simplified switch schematic. They can pass rail to rail signals.
The bandwidth is spec'd online, unfortunately its not in the datasheet, as 200MHz, however this is dependent on load, the higher capacitance of the load, the lower the datarate will be. For a more detailed explanation on how to approximate datarate/bandwidth of a mux see our video - TI Precision Labs - Switches and Muxes: Bandwidth, Channel-to-Channel Crosstalk, Off-Isolation and THD+Noise. This video will walk you through how to approximate system bandwidth/datarate with load considerations in place.
Best,
Parker Dodson