HEF4585BP,652 datasheet by NXP Semiconductors

HEF4585BP,652 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the HEF4585BP?
  The recommended operating voltage range for the HEF4585BP is 4.5V to 15V, although it can operate down to 3V with reduced performance.
• How do I ensure the HEF4585BP is properly powered on and off?
  To ensure proper power-on and power-off, it's recommended to use a slow-rising power supply voltage (typically 1-10 ms) and to avoid voltage spikes or dips during power-on and power-off transitions.
• What is the maximum clock frequency supported by the HEF4585BP?
  The maximum clock frequency supported by the HEF4585BP is 10 MHz, although it can operate at higher frequencies with reduced performance and increased power consumption.
• How do I handle the HEF4585BP's output enable (OE) pin?
  The output enable (OE) pin should be connected to VCC or a logic high signal to enable the outputs. When OE is low, the outputs are in a high-impedance state. It's recommended to use a pull-up resistor to ensure the OE pin is properly biased.
• What is the purpose of the HEF4585BP's VCC pin, and how should it be connected?
  The VCC pin is the power supply pin and should be connected to a stable voltage source (typically 5V) through a decoupling capacitor (e.g., 100 nF) to ensure proper operation and noise reduction.