CY7C251-45WMB datasheet by Cypress Semiconductor

CY7C251-45WMB Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for CY7C251-45WMB?
  The maximum operating temperature range for CY7C251-45WMB is -40°C to +85°C.
• How do I implement clock signal routing for CY7C251-45WMB?
  Clock signal routing for CY7C251-45WMB should be done using a low-skew, low-jitter clock distribution network to ensure reliable operation. It's recommended to use a clock buffer or a clock distribution chip to fan out the clock signal to multiple devices.
• What is the recommended termination scheme for CY7C251-45WMB?
  The recommended termination scheme for CY7C251-45WMB is to use a series resistor (Rs) of 22-33 ohms and a parallel capacitor (Cp) of 10-22 pF at the far end of the transmission line to match the impedance and reduce signal reflections.
• How do I handle power-up and power-down sequencing for CY7C251-45WMB?
  Power-up and power-down sequencing for CY7C251-45WMB should be done in a controlled manner to prevent damage to the device. It's recommended to power up the device in the following sequence: VCC, then VCCIO, and finally the clock signal. During power-down, the sequence should be reversed.
• What is the maximum current rating for CY7C251-45WMB?
  The maximum current rating for CY7C251-45WMB is 100 mA per pin, with a total device current rating of 500 mA.