The maximum clock frequency is typically limited by the propagation delay of the device, which is around 20-30 ns. However, the recommended maximum clock frequency is around 10-15 MHz to ensure reliable operation.
It's essential to provide a stable power supply with a decoupling capacitor (e.g., 0.1 μF) as close as possible to the VCC pin. Additionally, ensure that the power supply voltage is within the recommended range of 4.5 V to 5.5 V.
Although the CD74HCT299M96 is specified for 5 V operation, it can be used with a 3.3 V power supply. However, the output voltage levels will be lower, and the device may not meet the specified propagation delay and output current requirements.
The RST input should be asserted low (typically with a pull-down resistor) to reset the device. When RST is high, the device will operate normally. Ensure that the RST signal is synchronized with the clock signal to avoid metastability issues.
The recommended clock signal rise and fall time is around 1-5 ns to ensure reliable operation. Faster rise and fall times may cause issues with the device's internal clock buffering.
