CY7C1021-12ZC datasheet by Cypress Semiconductor

CY7C1021-12ZC Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for CY7C1021-12ZC?
  The maximum operating temperature range for CY7C1021-12ZC is -40°C to +85°C.
• How do I implement a self-refresh mode in CY7C1021-12ZC?
  To implement self-refresh mode, assert the CE# pin low and then clock in the self-refresh command (CBA10 = 0, CBA9 = 0, CBA8 = 1, CBA7 = 0, CBA6 = 0, CBA5 = 0, CBA4 = 0, CBA3 = 0, CBA2 = 0, CBA1 = 0, CBA0 = 0) on the address pins.
• What is the maximum clock frequency supported by CY7C1021-12ZC?
  The maximum clock frequency supported by CY7C1021-12ZC is 12 MHz.
• How do I handle power-up and power-down sequences for CY7C1021-12ZC?
  During power-up, VCC must be applied before VCCQ, and during power-down, VCCQ must be removed before VCC. Also, ensure that the clock is stable and within the specified frequency range before accessing the device.
• What is the purpose of the VCCQ pin in CY7C1021-12ZC?
  The VCCQ pin is the power supply for the output buffers and is typically connected to the system's I/O power supply (VCCQ).