M27C4001-12F1 datasheet by STMicroelectronics

M27C4001-12F1 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the M27C4001-12F1?
  The recommended operating voltage range for the M27C4001-12F1 is 4.5V to 5.5V.
• How do I handle the power-up and power-down sequences for the M27C4001-12F1?
  The power-up sequence should be VCC first, then OE# and CE#. For power-down, the sequence should be CE# and OE# first, then VCC.
• What is the maximum clock frequency supported by the M27C4001-12F1?
  The maximum clock frequency supported by the M27C4001-12F1 is 12 MHz.
• How do I ensure data retention in the M27C4001-12F1 during power-down?
  To ensure data retention, the VCC must be reduced to 2V or less within 10 ms of power-down, and the CE# and OE# pins must be in the inactive state.
• What is the purpose of the WP# pin on the M27C4001-12F1?
  The WP# (Write Protect) pin is used to prevent accidental writes to the device. When WP# is low, the device is in write-protect mode, and no writes are allowed.