CY62256NLL-55ZXAT datasheet by Cypress Semiconductor

CY62256NLL-55ZXAT Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for this SRAM?
  The CY62256NLL-55ZXAT can operate from -40°C to 85°C (industrial temperature range) and from 0°C to 70°C (commercial temperature range).
• How do I handle power-up and power-down sequences for this SRAM?
  The CY62256NLL-55ZXAT requires a stable VCC supply before applying clock and input signals. During power-down, the device should be in a standby mode (CE high) before removing power.
• What is the maximum clock frequency supported by this SRAM?
  The CY62256NLL-55ZXAT supports a maximum clock frequency of 55 MHz.
• How do I ensure data retention during power-down?
  The CY62256NLL-55ZXAT has a built-in data retention feature that retains data as long as VCC is above 2V. However, it's recommended to use a battery-backup or a supercapacitor to maintain VCC above 2V during power-down.
• What is the typical standby current consumption of this SRAM?
  The typical standby current consumption of the CY62256NLL-55ZXAT is around 15 mA at 55 MHz and 3.3V VCC.