M48Z512A-70PM1 datasheet by STMicroelectronics

M48Z512A-70PM1 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for this device?
  The M48Z512A-70PM1 can operate from -40°C to +85°C, making it suitable for industrial and automotive applications.
• How do I handle the power-on reset (POR) and voltage supervisor (VS) functions?
  The POR and VS functions are internally connected and require no external components. The device will automatically reset and hold in reset mode until the power supply voltage reaches the minimum operating voltage (VCC(min)).
• What is the purpose of the VCCP pin, and how do I connect it?
  The VCCP pin is the power supply pin for the programming voltage. It should be connected to a 5V power supply, and a 10kΩ resistor should be connected between VCCP and VCC to prevent back-powering.
• How do I ensure data retention during power-down or battery removal?
  The M48Z512A-70PM1 has a built-in battery switch-over circuit that automatically switches to the internal battery when the external power supply fails. This ensures data retention during power-down or battery removal.
• What is the recommended layout and routing for the device's power and ground pins?
  It is recommended to use a solid ground plane and to route the power and ground pins as close together as possible to minimize noise and ensure reliable operation.