DS2478ATB/VY+

DS2478ATB/VY+ is a DeepCover® secure ECDSA and HMAC SHA-256 coprocessor. The coprocessor can compute any required HMACs or ECDSA signatures to do any operation on the DS28E40 or DS28C40. The DS2478 provides a core set of cryptographic tools derived from integrated asymmetric (ECC P-256) and symmetric (SHA-256) security functions. In addition to the security services provided by the hardware-implemented crypto engines, this device integrates a FIPS/NIST true random number generator (TRNG), 6Kb of secured one-time-programmable (OTP) memory, one configurable GPIO, and a unique 64-bit ROM identification number (ROM ID). It is used in applications such as automotive secure authentication, identification and calibration automotive of parts/, tools/accessories, IoT node crypto-protection, secure authentication of accessories and peripherals, secure storage of cryptographic keys for a host controller, secure boot or download of firmware and/or system parameters.

• AEC-Q100 grade 1, FIPS 186 ECDSA P-256 signature and verification
• ECDH key exchange for session key establishment, ECDSA-authenticated R/W of configurable memory
• SHA-256 one-time pad encrypted R/W of configurable memory using an ECDH established key
• TRNG with NIST SP 800-90B compliant entropy source with function to read out
• 6Kb of one-time programmable (OTP) memory for user data, keys, and certificates
• Supply voltage is 3.3V typical at (TA = +25°C), supply current is 2mA max at (TA = +25°C)
• Input capacitance is 10pF typical at (TA = +25°C)
• SCL clock frequency is 1MHz maximum at (TA = +25°C)
• Operating temperature range from -40°C to +125°C
• 10-pin TDFN package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party