Microchip Technology ECC204-MAVDA-T

ECC204-MAVDA-T belongs to Microchip's ECC204 CryptoAuthentication family for accessory authentication and ecosystem control. Microchip's exact ordering-code example identifies MA as the 2 × 3 × 0.6 mm thermally enhanced UDFN, V as the -40 °C to +105 °C grade, DA as the I2C interface, and T as tape-and-reel packaging. Its protected memory can hold an ECC private key, certificates, a symmetric secret, and user data, according to the family summary data sheet.

The catalog's registered package is 8-UFDFN Exposed Pad. Microchip specifies an eight-pad 2 × 3 × 0.6 mm thermally enhanced UDFN for ECC204-MAVDA-T and recommends connecting the exposed backside paddle to GND. Confirm the current manufacturer land-pattern drawing, thermal pad, orientation mark, and assembly tolerances.

Layout checks

• Use the manufacturer's top-view pad numbering and controlled footprint.
• Route SDA and SCL with suitable I2C pullups and host voltage compatibility.
• Review the exposed-paddle ground connection.

The registered package JPG is absent locally and returns HTTP 404 on the production site. This draft must not be published until the correct image is restored and visually verified.

The ECC204 manufacturer's eight-pad UDFN pin table lists these functions for the DA I2C variant:

Microchip recommends connecting the exposed backside paddle to GND. Check the top-view drawing when placing the part.

Typical figures are not guaranteed limits. Read the complete controlled electrical tables, timing requirements, and security configuration before design release.

ECC204-MAVCZ-T shares the ECC204 family and UDFN size but uses a PWM single-wire interface: pad 5 becomes SI/O and pad 6 is NC. It is not an automatic substitute for the DA I2C version. Other ECC204 packages and provisioning programs also differ. Match the exact host interface, footprint, temperature grade, key provisioning, certificate format, and security policy before approving any alternative. No unverified LCDChip internal product link is asserted.

Microchip Technology's ECC204 CryptoAuthentication Summary Data Sheet, DS40002436C, gives the exact ECC204-MAVDA-T ordering example and the eight-pad UDFN I2C pin table. The public sheet is a summary; request controlled detailed information where required for final electrical and security qualification.

Verify the full ECC204-MAVDA-T ordering code, lot traceability, package geometry, and intended provisioning state. Microchip notes that crypto-device top markings are intentionally non-descriptive, so the marking alone is not proof of device type or authenticity. Validate the complete chain of trust and host-side key handling.

Use the latest Microchip-controlled data for supply and I2C timing, pad and exposed-paddle layout, provisioning, cryptographic command behavior, and host verification. Do not infer that a blank, TrustFLEX, or TrustCUSTOM device has the same preloaded credentials. Restore and verify the production package image before formal publication.