PCF8811MU/2DA/1,02 datasheet by NXP Semiconductors

PCF8811MU/2DA/1,02 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCF8811MU/2DA/1,02?
  The recommended operating voltage range is 1.65V to 3.6V, with a typical voltage of 1.8V.
• How do I ensure reliable data retention in the PCF8811MU/2DA/1,02?
  To ensure reliable data retention, it is recommended to follow the datasheet guidelines for write endurance, write cycles, and data retention periods. Additionally, using a capacitor with a suitable value and type can help maintain the power supply voltage during power-down.
• What is the maximum clock frequency for the PCF8811MU/2DA/1,02?
  The maximum clock frequency for the PCF8811MU/2DA/1,02 is 400 kHz.
• How do I handle the power-on reset (POR) and power-down reset (PDR) in the PCF8811MU/2DA/1,02?
  The PCF8811MU/2DA/1,02 has an internal POR and PDR circuitry. During power-up, the device resets internally, and during power-down, the device enters a low-power state. No external circuitry is required for POR and PDR.
• What is the purpose of the WP (Write Protect) pin in the PCF8811MU/2DA/1,02?
  The WP pin is used to enable or disable write protection for the entire memory array. When WP is low, the memory is write-protected, and when WP is high, the memory is writable.