CY62256VNLL-70ZRXIT datasheet by Cypress Semiconductor

CY62256VNLL-70ZRXIT Frequently Asked Questions (FAQs)

• What is the recommended operating temperature range for this SRAM?
  The recommended operating temperature range for the CY62256VNLL-70ZRXIT is 0°C to 70°C (commercial temperature range). However, it can also operate in the industrial temperature range of -40°C to 85°C with some performance degradation.
• How do I handle power-up and power-down sequences for this SRAM?
  It's recommended to power up the VCC and VCCQ pins simultaneously, and power down the VCCQ pin before the VCC pin. This ensures that the internal voltage regulator is properly shut down to prevent latch-up or other issues.
• What is the maximum clock frequency for this SRAM?
  The maximum clock frequency for the CY62256VNLL-70ZRXIT is 70 MHz. However, the actual operating frequency may be limited by the system design, PCB layout, and other factors.
• How do I ensure data integrity during power-down or brownout conditions?
  To ensure data integrity, it's recommended to use an external voltage supervisor or power-on reset circuit to detect power-down or brownout conditions and assert the chip enable (CE) pin low to prevent data corruption.
• Can I use this SRAM in a 3.3V system?
  Yes, the CY62256VNLL-70ZRXIT is compatible with 3.3V systems. The VCC pin can be connected to a 3.3V power supply, and the VCCQ pin can be connected to a 1.8V or 2.5V power supply, depending on the system requirements.