W25Q01NWSFIQ - Winbond

W25Q01NWSFIQ Frequently Asked Questions (FAQs)

• What is the maximum number of erase cycles for the W25Q01NWSFIQ?
  The W25Q01NWSFIQ has a minimum of 100,000 erase cycles per sector, and a total of 1,000,000 erase cycles for the entire device.
• How do I handle the hold pin (HOLD#) during power-up and power-down?
  The HOLD# pin should be pulled high during power-up and power-down to prevent any unwanted commands from being executed. It's recommended to connect a pull-up resistor to VCC.
• What is the recommended clock frequency for the SPI interface?
  The recommended clock frequency for the SPI interface is up to 104 MHz, but it can operate at lower frequencies as well. The device can also operate in dual I/O and quad I/O modes at higher frequencies.
• How do I determine the device density and organization?
  The device density and organization can be determined by reading the JEDEC ID (0xEF 0x40 0x01) and the device ID (0x01 0x02 0x03 0x04). The W25Q01NWSFIQ has a density of 1 Gbit and is organized as 128 Kbytes x 8 bits.
• What is the purpose of the WP# pin, and how do I use it?
  The WP# pin is used to enable or disable the write protection of the status register. When WP# is low, the status register is write-protected. When WP# is high, the status register can be written to. It's recommended to connect WP# to VCC or GND depending on the application requirements.