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SN74LVC2G126: SN74LVC2G126DCUT support maximum signal frequency limit(bandwidth)

Part Number: SN74LVC2G126


Hi,

As Schematic,there are three Channel as input, the other one as output,  I use SN74LVC2G126DCUT to control output  , now connect to SPI BUS ,frequency is 33Mhz, but SPI TPM no recognize;

so I want to know what is the chip BW limit?in the datesheet I find one parameter Tpd,  no Bandwidth describtion,  what is the relation between Tpd and BW ?Vcc =3.3V, tpd limit is from 1.4ns to 4ns; 

whether do the SN74LVC2G126DCUT meet SPI bus switch ?