CY7C251-45DMB datasheet by Cypress Semiconductor

CY7C251-45DMB Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for CY7C251-45DMB?
  The maximum operating temperature range for CY7C251-45DMB is -40°C to +85°C.
• How do I implement clock domain crossing (CDC) with CY7C251-45DMB?
  Cypress provides a Clock Domain Crossing (CDC) application note (AN54445) that provides guidelines and examples for implementing CDC with CY7C251-45DMB.
• What is the recommended power-up sequence for CY7C251-45DMB?
  The recommended power-up sequence for CY7C251-45DMB is to power up VCC first, followed by VCCIO, and then apply the clock signal.
• How do I handle metastability issues with CY7C251-45DMB?
  Cypress recommends using synchronizers or FIFOs to handle metastability issues with CY7C251-45DMB. Additionally, the device has built-in features such as asynchronous clock domains and clock enable signals to help mitigate metastability issues.
• What is the maximum frequency for the clock input of CY7C251-45DMB?
  The maximum frequency for the clock input of CY7C251-45DMB is 200 MHz.