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SN74LVC244A: Schematic review

Eng Lih Khaw
Expert 2000 points
Part Number: SN74LVC244A
Other Parts Discussed in Thread: SN74LVC1G04

Hi,

I'd like to request your help to check and review the attached schematic.
I've done the first round check .It seems to be OK

Hence, if I appreciate if you could advise if any changes needed

SN74LVC244A.pdf


Thanks!

  • 0
    TI__Guru* 97046 points
    Hello,
    I don't see any problem with the attached schematic, but a schematic won't tell me anything about input signals, supply voltage, or output load conditions. They should be sure to avoid excessive loading on the outputs and slow/floating inputs.

    I noticed the circuit at LVDS_DET to LVDS_VID_DET appears to just be an inverter -- would it be better to use an actual inverter like SN74LVC1G04, or is there a reason the BJT is being used? They could replace at least 4 components (R4000, R4001, R4002, Q4000) with just one inverter.