Microchip Technology Inc

ATECC508A

In Production

The ATECC508A crypto element is the first crypto device to integrate ECDH (Elliptic Curve Diffie–Hellman) key agreement, which makes it easy to add confidentiality (encryption/decryption) to digital systems including Internet of Things (IoT) nodes used in home automation, industrial networking, accessory and consumable authentication, medical, mobile and other applications. In addition to ECDH, the ATECC508A has ECDSA sign-verify capabilities built-in to provide highly secure asymmetric authentication. The combination of ECDH and ECDSA makes the device an ideal way to provide all three pillars of security such as confidentiality, data integrity, and authentication when used with MCU or MPUs running encryption/decryption algorithms (i.e. AES) in software. Similar to all Microchip CryptoAuthentication products, the new ATECC508A employs ultra-secure hardware-based cryptographic key storage and cryptographic countermeasures which are more secure than software-based key storage. This next-generation CryptoAuthentication device is compatible with any microprocessor (MPU) or microcontroller (MCU) including SMART and Microchip AVR MCUs or MPUs. As with all CryptoAuthentication devices, the ATECCC508A delivers extremely low-power consumption, requires only a single GPIO over a wide voltage range, and has a tiny form factor making it ideal for a variety of applications including those that require longer battery life and flexible form factors. The ATECC508A is downward compatible with the ATECC108A, ATECC108, ATSHA204A, and ATSHA204 crypto element devices.

The Microchip ATECC508A integrates ECDH (Elliptic Curve Diffie Hellman) security protocol an ultra-secure method to provide key agreement for encryption/decryption, along with ECDSA (Elliptic Curve Digital Signature Algorithm) sign-verify authentication for the Internet of Things (IoT) market including home automation, industrial networking, accessory and consumable authentication, medical, mobile and more.

The ATECC508A is a secure element from the Microchip CryptoAuthentication portfolio with advanced Elliptic Curve Cryptography (ECC) capabilities. With ECDH and ECDSA being built right in, this device is ideal for the rapidly growing IoT market by easily supplying the full range of security such as confidentiality, data integrity, and authentication to systems with MCU or MPUs running encryption/decryption algorithms (i.e. AES). Similar to all Microchip CryptoAuthentication products, the new ATECC508A employs ultra-secure hardware-based cryptographic key storage and cryptographic countermeasures which are more robust than software-based key storage.

The device is compatible with any microprocessor (MPU) or microcontroller (MCU) including Microchip and Microchip AVR/ARM MCUs or MPUs. As with all CryptoAuthentication devices, the ATECCC508A delivers extremely low-power consumption, requires only a single GPIO over a wide voltage range, and has a tiny form factor making it ideal for a variety of applications that require longer battery life and flexible form factors.

 

    Features

         

        • Easy way to run ECDSA and ECDH Key Agreement
        • ECDH key agreement makes encryption/decryption easy
        • Ideal for IoT node security
        • Authentication without the need for secure storage in the host
        • No requirement for high-speed computing in client devices
        • Cryptographic accelerator with Secure Hardware-based Key Storage
        • Performs High-Speed Public Key (PKI) Algorithms
        • NIST Standard P256 Elliptic Curve Support
        • SHA-256 Hash Algorithm with HMAC Option
        • Host and Client Operations
        • 256-bit Key Length
        • Storage for up to 16 Keys
        • Two high-endurance monotonic counters
        • Guaranteed Unique 72-bit Serial Number
        • Internal High-quality FIPS Random Number Generator (RNG)
        • 10Kb EEPROM Memory for Keys, Certificates, and Data
        • Storage for up to 16 Keys
        • Multiple Options for Consumption Logging and One Time Write Information
        • Intrusion Latch for External Tamper Switch or Power-on Chip Enablement
        • Single Wire or I2C Interface
        • 2.0V to 5.5V Supply Voltage Range
        • 1.8V to 5.5V IO levels
        • <150nA Sleep Current
        • 8-pad UDFN,8-lead SOIC, and 3-lead CONTACT Packages
    Parameter Name
    Value
    Operating Current Typical (mA)
    1
    Operating Voltage (Vcc)
    2 - 5.5
    Density
    10.5Kb
    Temp# Range (deg C)
    -40 - 85
    Interface Type
    Single-wire; I2C
    Zones
    16
    Key Size
    256
    Standby Typical (uA)
    2
    Algorithm Type
    ECC P256 (ECDH and ECDSA), SHA256
    Documentation
    Data Sheets
    12/10/2016
    613KB
      Application Notes
     
     
     
    AppNote
    12/10/2016
    1008KB
    AppNote
    12/10/2016
    1126KB
    AppNote
    12/10/2016
    1581KB
    AppNote
    12/10/2016
    1120KB
    AppNote
    12/10/2016
    840KB
    AppNote
    12/10/2016
    2074KB
    AppNote
    05/01/2011
    192KB
    AppNote
    05/01/2011
    43KB
    AppNote
    12/10/2016
    689KB
    AppNote
    12/10/2016
    790KB
    AppNote
    07/01/2015
    298KB
    AppNote
    08/01/2015
    1460KB
    AppNote
    12/10/2016
    194KB
    AppNote
    04/01/2015
    391KB
    AppNote
    12/10/2016
    447KB
    AppNote
    08/01/2015
    392KB
    AppNote
    07/01/2015
    629KB
    AppNote
    12/10/2016
    467KB
    AppNote
    12/10/2016
    447KB
    AppNote
    08/01/2015
    514KB
    AppNote
    12/10/2016
    494KB
    AppNote
    12/10/2016
    298KB
    AppNote
    12/10/2016
    846KB
      Brochures
     
     
     
    Brochures
    02/01/2015
    445KB
    Brochures
    12/10/2016
    703KB
    Brochures
    05/01/2015
    839KB
    Brochures
    12/10/2016
    4660KB
      Quick Start Guides
     
     
     
    Quick Start Guides
    12/11/2016
    130KB
    Quick Start Guides
    12/11/2016
    209KB
    Quick Start Guides
    12/11/2016
    161KB
      User Guides
     
     
     
     
    User Guides
    12/10/2016
    274KB
      White Papers
     
     
     
    WhitePapers
    06/01/2015
    279KB
    WhitePapers
    02/01/2013
    187KB
    WhitePapers
    07/01/2015
    359KB
    WhitePapers
    03/01/2011
    1462KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    ATECC508A-MAHAW-S
    8
    UDFN
    -40C to +85C
    T/R
    0.86
    0.78
    0.71
    0.65
    0.62
     
    ATECC508A-MAHCZ-S
    8
    UDFN
    -40C to +85C
    T/R
    0.71
    0.65
    0.59
    0.54
    0.52
    ATECC508A-MAHCZ-T
    8
    UDFN
    -40C to +85C
    T/R
    0.70
    0.64
    0.58
    0.53
    0.51
    ATECC508A-MAHDA-S
    8
    UDFN
    -40C to +85C
    T/R
    0.71
    0.65
    0.59
    0.54
    0.52
    ATECC508A-MAHDA-T
    8
    UDFN
    -40C to +85C
    T/R
    0.70
    0.64
    0.58
    0.53
    0.51
    ATECC508A-RBHCZ-B
    3
    CONTACT
    -40C to +85C
    TUBE
    0.83
    0.75
    0.68
    0.62
    0.60
     
    ATECC508A-RBHCZ-T
    3
    CONTACT
    -40C to +85C
    T/R
    0.83
    0.75
    0.68
    0.62
    0.60
    ATECC508A-SSHAW-T
    8
    SOIC
    -40C to +85C
    T/R
    0.86
    0.78
    0.71
    0.65
    0.62
     
    ATECC508A-SSHCZ-B
    8
    SOIC
    -40C to +85C
    TUBE
    0.73
    0.66
    0.60
    0.55
    0.53
    ATECC508A-SSHCZ-T
    8
    SOIC
    -40C to +85C
    T/R
    0.73
    0.66
    0.60
    0.55
    0.53
    ATECC508A-SSHDA-B
    8
    SOIC
    -40C to +85C
    TUBE
    0.73
    0.66
    0.60
    0.55
    0.53
    ATECC508A-SSHDA-T
    8
    SOIC
    -40C to +85C
    T/R
    0.73
    0.66
    0.60
    0.55
    0.53

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • AT88CK101STK3 ( AT88CK101STK3 )

      AT88CK101STK3

      Not Recommended.

      Development tool for applications that protect confidential files, encrypt downloads, perform two-factor logons, authenticate products, and prevent software piracy. The starter kit includes a microbase board with a USB interface that lets designers learn and experiment on their PCs. It includes a...

    • AT88CK101SK-MAH-XPRO ( AT88CK101SK-MAH-XPRO )

      AT88CK101SK-MAH-XPRO

      A development tool for applications that protect confidential files, encrypt downloads, perform two-factor logons, authenticate products, and prevent software piracy. The starter kit includes an AVR baseboard (ATMicrobase) with a USB interface that lets designers learn and experiment on their PCs.

      For the...

    • AT88CK101SK-TSU-XPRO ( AT88CK101SK-TSU-XPRO )

      AT88CK101SK-TSU-XPRO

    • AT88CK101SK-SSH-XPRO ( AT88CK101SK-SSH-XPRO )

      AT88CK101SK-SSH-XPRO

    • AT88CK101SK-RBH ( AT88CK101SK-RBH )

      AT88CK101SK-RBH

    • 88CKSCKTSOIC-XPRO ( AT88CKSCKTSOIC-XPRO )

      88CKSCKTSOIC-XPRO

      The AT88CKSCKTSOIC-XPRO is a Microchip XPRO extension kit for Microchip Crypto Authentication devices in an 8-pin SOIC Package. The board attaches to any Microchip Micro-controller board that supports the XPRO interface.  The boards operate with the following Microchip Devices

      • ATECC108A/508A - Ecliptic Curve Security devices with I2C or Single Wire Interface
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    • 88CKSCKTUDFN-XPRO ( AT88CKSCKTUDFN-XPRO )

      88CKSCKTUDFN-XPRO

      The AT88CKSCKTUDFN-XPRO is a Microchip XPRO extension kit for Microchip Crypto Authentication devices in an 8-pin UDFN package. The board attaches to any Microchip Micro-controller board that supports the XPRO interface. The boards operate with the following Microchip Devices

      ATECC108A/508A - Ecliptic Curve Security devices with I2C or Single Wire Interface
      ATSHA204A -...

    • AT88CKECCROOT ( AT88CKECCROOT )

      AT88CKECCROOT

      The term provisioning is often used to refer to the process of configuring and loading security keys and data into crypto elements, such as ATECC508A devices. has made it extremely easy and convenient to provision an ECC-based crypto element during production of the board/product that uses the ATECC508A. provides three simple USB-based kits with supporting software:

    • CryptoAuth-XPRO ( ATCRYPTOAUTH-XPRO )

      CryptoAuth-XPRO

      CryptoAuth Xplained Pro evaluation and development kit is an add-on board to the Xplained and XplainedPro evaluation platforms to support the ATSHA204A, ATAES132A, and ATECC508A in embedded design applications. CryptoAuth Xplained Pro has been developed to allow fast system prototyping within the Xplained and XplainedPro evaluation environment. This kit gives engineers, developers, and decision...

    • 88CKECC-AWS-XSTK ( AT88CKECC-AWS-XSTK )

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      AT88CK590

      The CryptoAuthentication AT88CK590 Demo-evaluation Kit can be used with Crypto Evaluation Studio (ACES) software (Version 5.0.0 or greater) to easily explore the operation and architectures of the ATSHA204A, ATAES132A, and ATECC508A crypto element devices. The kit is a USB dongle with a built-in AVR AT90USB1287 microcontroller, and connects directly to a users PC. It is an excellent way to...

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    ATECC508A-SSHCZ-B
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    ATECC508A-SSHCZ-T
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    ATECC508A-SSHDA-B
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    ATECC508A-SSHDA-T
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    ATECC508A-SSHAW-T
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    ATECC508A-RBHCZ-T
    0.027000
    0.215800
    3
    CONTACT
    2.5x6.5x0.5mm
    NiPdAu
    e4
    ATECC508A-RBHCZ-B
    0.027000
    0.035714
    3
    CONTACT
    2.5x6.5x0.5mm
    NiPdAu
    e4
    ATECC508A-MAHDA-T
    0.009600
    0.538600
    8
    UDFN
    2x3x0.6mm
    NiPdAu
    e4
    ATECC508A-MAHDA-S
    0.009600
    0.538600
    8
    UDFN
    2x3x0.6mm
    NiPdAu
    e4
    ATECC508A-MAHAW-S
    0.009600
    0.538600
    8
    UDFN
    2x3x0.6mm
    NiPdAu
    e4
    ATECC508A-MAHCZ-S
    0.009600
    0.538600
    8
    UDFN
    2x3x0.6mm
    NiPdAu
    e4
    ATECC508A-MAHCZ-T
    0.009600
    0.538600
    8
    UDFN
    2x3x0.6mm
    NiPdAu
    e4
    ATECC508A-UUCZ-T
    0.001000
    0.000000
    4
    WLCSP
    1.412x1.48x0.390mm
    SAC405
    e1
    ATECC508A-MXHDA-S
    0.004500
    0.782667
    8
    XDFN
    2x3x0.4mm
    NiPdAu
    e4
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.