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SN74AHC245: Compare to SN74HC245

Part Number: SN74AHC245
Other Parts Discussed in Thread: SN74HC245,

Hi Team,

My customer would like change their solution from SN74HC245 to SN74AHC245 because Vsignal may larger than Vin. 

And below are the questions that we would like to check.

1. Could SN74AHC245 support 5V -> 3.3V voltage translation?

2. Because there is no top zener diode on SN74AHC245, do we need to concern its schematic design? or just the same as SN74HC245?