UPSD3234A-40T6 datasheet by STMicroelectronics

UPSD3234A-40T6 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the UPSD3234A-40T6?
  The recommended operating voltage range for the UPSD3234A-40T6 is 3.0V to 5.5V.
• How do I ensure reliable data retention in the UPSD3234A-40T6?
  To ensure reliable data retention, it is recommended to follow the power-down sequence specified in the datasheet, and to ensure that the VCC supply voltage is reduced to 0V before removing the battery.
• What is the maximum clock frequency supported by the UPSD3234A-40T6?
  The maximum clock frequency supported by the UPSD3234A-40T6 is 10 MHz.
• How do I handle the HOLD and WP pins on the UPSD3234A-40T6?
  The HOLD pin should be tied to VCC or left floating to enable the device, while the WP pin should be tied to VCC to enable write protection or left floating to disable it.
• What is the purpose of the VCAP pin on the UPSD3234A-40T6?
  The VCAP pin is used to connect a capacitor to stabilize the internal voltage regulator, and should be connected to a 1uF to 10uF capacitor.