AS4C64M16MD1A-5BIN - Alliance Memory

AS4C64M16MD1A-5BIN Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for this SDRAM?
  The maximum operating temperature range for the AS4C64M16MD1A-5BIN is 0°C to 70°C (commercial grade) and -40°C to 85°C (industrial grade).
• How do I handle refresh cycles in this SDRAM?
  The AS4C64M16MD1A-5BIN requires a refresh cycle every 64ms (tREF) to maintain data integrity. You can use a refresh counter to keep track of the refresh cycles and issue an AUTO REFRESH command (CBR) to refresh the entire memory array.
• What is the maximum clock frequency supported by this SDRAM?
  The AS4C64M16MD1A-5BIN supports a maximum clock frequency of 166MHz.
• How do I handle power-up and power-down sequences for this SDRAM?
  During power-up, the VDD and VDDQ pins should be powered up simultaneously, followed by the clock signal. During power-down, the clock signal should be stopped, followed by the VDD and VDDQ pins being powered down simultaneously.
• What is the latency for this SDRAM?
  The AS4C64M16MD1A-5BIN has a latency of 5 clock cycles (CL5).