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SN74AVCH16T245: SN74AVC fan-out and applications question

Part Number: SN74AVCH16T245
Other Parts Discussed in Thread: SN74AXC8T245

Hi,

Im using the part "SN74AVCH16T245" for level translation of 16signals, which need to 1.2V to 1.8V level shifting. In that there is SPI SCK, SPI MOSI, and 14 GPO pins are connected on 1.2V side(VCCA). SPI lines operated in 16Mhz.. My question is , in datasheet there is a line says "The Power-Supply Range SN74AVCH16T245 device is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V". So can I use this IC for 1.2V to 1.8V level shifting ? The bus holding circuit cause any problem to the SPI lines operation?? will it cause any misbehaving ? 

  • Vignesh,

    You can use it for the listed range from 1.2 to 1.8V level shifting as per the ROC.
    You could also consider using the SN74AXC8T245 which already have 2 DIR control signals suitable for SPI.
    Do you need the bus hold circuitry?