Instructions for Use

1. Power Supply:

   • Ensure that the supply voltage (Vcc) is within the specified range of 4.5V to 5.5V.
   • Connect the ground (GND) pin to the system ground.

2. Programming:

   • Apply the programming voltage (Vpp) of 12.5V ± 0.5V to the Vpp pin during the programming cycle.
   • The write cycle time is 2 ms, so ensure that the data is held stable for this duration.

3. Erasing:

   • To erase the device, expose it to ultraviolet light for approximately 20 minutes. The device should be placed in a UV eraser with a wavelength of 253.7 nm.

4. Access Time:

   • The maximum access time is 120 ns at Vcc = 5V. Ensure that the system clock or controller can meet this timing requirement.

5. Temperature Considerations:

   • Operate the device within the industrial temperature range of -40°C to +85°C.
   • Store the device within the storage temperature range of -65°C to +150°C.

6. Data Retention:

   • The device retains data for up to 10 years under normal operating conditions.

7. Endurance:

   • The device can withstand up to 1,000 programming/erase cycles.

8. Output Drive:

   • The device can drive up to 10 mA per output pin. Ensure that the load does not exceed this limit.

9. Current Consumption:

   • The standby current is typically 1 μA, and the active current is typically 30 mA. Design the power supply to handle these currents.

10. Handling:

    • Handle the device with care to avoid static discharge, which can damage the device.
    • Follow proper ESD (Electrostatic Discharge) precautions when handling and installing the device.

11. Package Selection:

    • Choose the appropriate package type (DIP, PLCC, TSOP) based on your application requirements and board design.

By following these parameters and instructions, you can ensure reliable operation and longevity of the NM27C128Q-120 device.