The recommended operating voltage range for the HEF4555BP is 5V to 15V, although it can operate down to 3V with reduced performance.
To ensure proper power-on and power-off, make sure to follow the recommended power-up and power-down sequences, and use a bypass capacitor (e.g., 10uF) between VCC and GND to filter out noise and voltage spikes.
The maximum clock frequency that the HEF4555BP can handle is 100 kHz, although it can operate at higher frequencies with reduced performance and increased power consumption.
To minimize power consumption, use a low-power oscillator, reduce the clock frequency, and use a low-voltage power supply. Additionally, consider using the HEF4555BP's built-in power-down mode when the device is not in use.
To minimize noise and ensure proper operation, follow good PCB design practices, such as keeping the clock signal traces short and away from noisy signals, using a solid ground plane, and placing bypass capacitors close to the device.