Part Number: SN74AHCT244Q Other Parts Discussed in Thread: SN74AHCT244 , SN74AHCT244-Q1 What is the difference in performance between the SN74AHCT244 and the SN74AHCT244Q? When I checked the datasheet, SN74AHCT244Q says "Q devices meet automatic performance…
HC(S) family devices have clamping diodes to V CC and can be accidentally powered through them. You should use a logic family with overvoltage-tolerant inputs like AHC, LV-A, or LVC.
Please note that 3.3 V signals are not compatible with plain CMOS inputs…
This device supports more than 40 MHz.
If you need to convert 3.3 V signals to 5 V, you should use a device with TTL-compatible inputs like the SN74AHCT244Q, or an actual level shifter like the SN74LXC8T245-Q1.