CY7C128-35PC datasheet by Cypress Semiconductor

CY7C128-35PC Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for CY7C128-35PC?
  The maximum operating temperature range for CY7C128-35PC is 0°C to 70°C (commercial grade) and -40°C to 85°C (industrial grade).
• How do I handle power-up and power-down sequencing for CY7C128-35PC?
  It is recommended to power up the VCC supply before the VCCQ supply, and power down the VCCQ supply before the VCC supply to prevent latch-up and ensure proper operation.
• What is the recommended termination scheme for CY7C128-35PC?
  Cypress recommends using a 22-ohm series resistor and a 33-pF capacitor in parallel for each output pin to ensure signal integrity and reduce noise.
• Can I use CY7C128-35PC in a 3.3V system?
  Yes, CY7C128-35PC is compatible with 3.3V systems, but it requires a 3.3V VCCQ supply and 3.3V tolerant inputs. Additionally, the output voltage levels will be 3.3V.
• How do I implement a clock signal for CY7C128-35PC?
  The clock signal should be a stable, low-skew clock with a frequency range of 1-133 MHz. A clock signal with a 50% duty cycle is recommended for optimal performance.