Instructions

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 2.7 V to 3.6 V.
   • Connect Vss to ground.

2. Pin Configuration:

   • Vcc: Power supply
   • Vss: Ground
   • A0-A17: Address lines
   • DQ0-DQ7: Data I/O lines
   • OE#: Output enable (active low)
   • WE#: Write enable (active low)
   • CE#: Chip enable (active low)
   • WP#: Write protect (active high)

3. Initialization:

   • Apply power and ensure all control signals (CE#, OE#, WE#, WP#) are set to their default states.
   • CE# should be low to select the device.
   • OE# should be low to enable data output.
   • WE# should be high to prevent writing.
   • WP# should be low to allow writing.

4. Reading Data:

   • Set CE# low to select the device.
   • Set OE# low to enable data output.
   • Apply the desired address to A0-A17.
   • Data will appear on DQ0-DQ7 after the access time (70 ns).

5. Writing Data:

   • Set CE# low to select the device.
   • Set WE# low to enable writing.
   • Apply the desired address to A0-A17.
   • Apply the data to be written to DQ0-DQ7.
   • Hold WE# low for the programming time (200 μs).
   • Return WE# to high to complete the write cycle.

6. Erasing Sectors/Blocks:

   • Set CE# low to select the device.
   • Set WE# low to enable writing.
   • Apply the appropriate command sequence for sector/block erase.
   • Hold WE# low for the erase time (1.5 s).
   • Return WE# to high to complete the erase cycle.

7. Write Protection:

   • Set WP# high to prevent any write or erase operations.
   • Set WP# low to allow write and erase operations.

8. Power Down:

   • Set CE# high to deselect the device.
   • Set Vcc to 0 V to power down the device.

Notes:

• Always refer to the datasheet for detailed timing diagrams and specific command sequences.
• Ensure proper handling and storage to avoid damage from electrostatic discharge (ESD).