Add a decoupling capacitor from
VCC to GND. The capacitor needs to be placed physically close to
the SNx4BCT374 and electrically close to both the VCC and GND pins.
An example layout is shown in the Layout section.
Ensure the capacitive load at the
output is ≤ 50 pF. This is not a hard limit, however it will ensure optimal
performance. This can be accomplished by providing short, appropriately sized
traces from the SNx4BCT374 to the receiving device(s).
Ensure the resistive load at the
output is larger than (VCC / IO(max)) Ω. This will ensure
that the maximum output current from the Absolute Maximum Ratings is not
violated. Most CMOS inputs have a resistive load measured in megaohms; much
larger than the minimum calculated above.
Thermal issues are rarely a
concern for logic gates, however the power consumption and thermal increase can
be calculated using the steps provided in the application report, CMOS Power Consumption and Cpd Calculation.
This device includes D-type flip-flop circuits. The output of these circuits is
unknown at system startup. Data must be clocked into each D-type flip-flop to
initialize it into a known state.