The recommended operating voltage range for the SAA1027N is 4.5V to 15V, although it can tolerate up to 18V for short periods.
To ensure the internal oscillator's stability and accuracy, it's essential to use a high-quality external capacitor (C1) with a value between 100nF and 1uF, and to keep the oscillator circuitry away from noise sources.
The SAA1027N can handle clock frequencies up to 2.5MHz, but it's recommended to operate at 1.8432MHz or lower for optimal performance and stability.
The SAA1027N's outputs are open-drain, so you'll need to use pull-up resistors to interface with microcontrollers or other digital circuits. Additionally, ensure the voltage levels are compatible, and use level shifters if necessary.
The 'Test' pin is used for factory testing and should be connected to VCC or left unconnected during normal operation. Do not connect it to GND or use it as a digital input/output.