SO642 datasheet by STMicroelectronics

SO642 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SO642?
  The recommended operating voltage range for the SO642 is 2.7V to 5.5V, with a typical voltage of 3.3V.
• How do I ensure the SO642 is properly powered on and off?
  To ensure proper power-on and power-off, it's recommended to follow a power-up sequence: VCC first, then EN (enable) pin, and finally the input signals. For power-down, reverse the sequence.
• What is the maximum data transfer rate supported by the SO642?
  The SO642 supports data transfer rates up to 100 Mbps.
• How do I handle ESD protection for the SO642?
  To ensure ESD protection, it's recommended to use a TVS (Transient Voltage Suppressor) diode or a dedicated ESD protection device, such as the ST's ESDAxx series, on the input lines.
• What is the recommended PCB layout and routing for the SO642?
  For optimal performance, it's recommended to follow a star-connection layout, with the SO642 at the center, and to keep the input and output traces as short as possible, with a 50-ohm impedance matching.