SST39LF040-45-4C-WHE datasheet by Silicon Storage Technology

SST39LF040-45-4C-WHE Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for this device?
  The SST39LF040-45-4C-WHE has an operating temperature range of -40°C to +85°C.
• How do I handle the HOLD# pin during power-up and power-down?
  The HOLD# pin should be pulled high during power-up and power-down to prevent unwanted writes or erases.
• What is the recommended voltage for the VCC pin during programming and erasure?
  The recommended voltage for the VCC pin during programming and erasure is 3.3V ± 10%.
• How do I determine the device density and organization?
  The SST39LF040-45-4C-WHE is a 4Mbit flash memory device, organized as 512K x 8 bits.
• What is the purpose of the WP# pin, and how do I use it?
  The WP# pin is a write-protect pin that allows the user to protect the entire device or a portion of it from writes and erases. To use it, tie WP# to VCC to enable write protection, or tie it to GND to disable write protection.