M41ST84WMQ6 datasheet by STMicroelectronics

M41ST84WMQ6 Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the M41ST84WMQ6?
  The recommended crystal oscillator frequency for the M41ST84WMQ6 is 32.768 kHz, which is a standard frequency for real-time clocks.
• How do I ensure the accuracy of the RTC in the M41ST84WMQ6?
  To ensure the accuracy of the RTC, it is recommended to use a high-quality crystal oscillator, maintain a stable power supply, and avoid exposing the device to extreme temperatures or electromagnetic interference.
• Can I use the M41ST84WMQ6 as a battery-backed SRAM?
  Yes, the M41ST84WMQ6 can be used as a battery-backed SRAM. The device has a built-in battery switch that allows the SRAM to be powered from an external battery when the main power supply is absent.
• How do I handle the power-on reset (POR) and power-fail reset (PFR) in the M41ST84WMQ6?
  The POR and PFR are handled internally by the device. The POR is triggered when the power supply rises above the minimum operating voltage, and the PFR is triggered when the power supply falls below the minimum operating voltage. No external circuitry is required to handle these reset events.
• What is the maximum operating temperature range for the M41ST84WMQ6?
  The maximum operating temperature range for the M41ST84WMQ6 is -40°C to +85°C. However, the device can be stored at temperatures between -55°C and +125°C.