How do I connect and use this board with my Microchip cryptographic devices? (MICROCHIP EV27Y72A Socket Board User Guide)

Answer

manuals.plus

Dec 08, 2025 - 02:30 PM

To effectively use the Microchip EV27Y72A 3-Lead Contact mikroBUSTM Socket Board with your Microchip cryptographic devices, follow these step-by-step instructions:

1. **Power Selection:**

- Choose between 3.3V or 5V power by installing a 0Ω resistor in either the R3 or R4 locations. Only one resistor should be populated at a time.

2. **Modes of Operation:**

- Configure the board based on the desired interface mode and power source. Refer to Table 2-1 in the manual for the specific configurations.

3. **Connecting the Board:**

- Align the angled notch on the 3-Lead Contact mikroBUS Socket Board with the angled line near the mikroBUS connector on your host board.

- Connect the boards as per the provided diagrams in the manual.

4. **Using Parasitic Power:**

- Ensure the device is in Parasitic Power mode.

- Follow the proper circuitry usage steps to issue cryptography commands and read back responses.

5. **Software Requirements:**

- Install the latest version of Microchip’s CryptoAuthLib and the Kit Protocol firmware for proper device detection and recognition.

6. **Additional Resources:**

- Refer to the provided links for device documentation, board design files, and software downloads for further assistance.

By following these steps and referring to the detailed instructions in the manual, you can effectively set up and use the Microchip EV27Y72A 3-Lead Contact mikroBUSTM Socket Board with your Microchip cryptographic devices for various applications.