VN808CM-E datasheet by STMicroelectronics

VN808CM-E Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  STMicroelectronics recommends a 2-layer or 4-layer PCB with a thermal pad connected to a large copper area on the bottom layer to dissipate heat efficiently.
• How do I ensure reliable communication between the VN808CM-E and the microcontroller?
  Use a dedicated SPI bus with a clock frequency up to 10 MHz, and ensure proper signal termination and shielding to minimize electromagnetic interference (EMI).
• What is the maximum allowed voltage on the VCC pin?
  The maximum allowed voltage on the VCC pin is 5.5V, but it's recommended to operate within the specified range of 4.5V to 5.5V for optimal performance and reliability.
• How do I handle the VN808CM-E's power-on reset (POR) and brown-out reset (BOR) features?
  The VN808CM-E has an internal POR and BOR circuitry. Ensure that the power supply is stable and within the specified range to avoid unwanted resets. You can also use external circuitry to filter out power glitches.
• What is the recommended operating temperature range for the VN808CM-E?
  The recommended operating temperature range for the VN808CM-E is -40°C to 125°C. However, the device can operate up to 150°C for short periods, but this may affect its reliability and lifespan.