Microchip logo
Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
  • product video
product primary image

ATECC508A

Status: In Production

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
View More
Overview
Documents
Development Environment
RoHS Information
Buy Now

Device Overview

Summary

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.

Additional 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
Parametrics
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

Documents

Jump to:

Software Library

10/26/2018

User Guides

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
  • Application Examples
Demo & Evaluation Boards
CryptoAuth-XPRO-B
CryptoAuth-XPRO-B ( ATCRYPTOAUTH-XPRO-B )

CryptoAuth XPRO-B evaluation and development kit is an add-on board to the XplainedPro evaluation platforms to support the ATSHA204A, ATAES132A, ATECC508A and  ATECC608A in embedded design applications. CryptoAuth XPRO-B Pro has been developed to allow fast system prototyping within the Xplained and XplainedPro evaluation environment. This kit gives engineers, developers, and

...

Learn More
Add To Cart
Crypto Authentication SOIC XPRO Starter Kit
Crypto Authentication SOIC XPRO Starter Kit ( DM320109 )

The CryptoAuthentication™ SOIC Xplained Pro Starter (CryptoAuth-XSTK) kit consists of a SAMD21-XPRO and an AT88CKSCKTSOIC-XPRO socket board along with Crypto Authentication sample devices.   The board works with Microchip's Crypto Evaluation Studio (ACES) out of the box and can be used for evaluation and development wih CryptoAuthentication Devices.  The kit supports all Crypto

...

Learn More
Add To Cart
88CKECC-AWS-XSTK-B
88CKECC-AWS-XSTK-B ( AT88CKECC-AWS-XSTK-B )

The Microchip Zero Touch Secure Provisioning Kit for AWS IoT helps designers to quickly and securely develop IoT devices that are in compliance with the AWS security regulations. These regulations state that a device must use mutual authentication with a remote server to be authorized on the AWS cloud.

Meanwhile, a robust authentication must also ensure a complete isolation of the

...

Learn More
Add To Cart
AT88CK590
AT88CK590 ( 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...

Learn More
Add To Cart
CryptoAuth-XPRO
CryptoAuth-XPRO ( ATCRYPTOAUTH-XPRO )
(Not Recommended for new design)

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...

Learn More
Add To Cart
Crypto UDFN Socketed Dev Kit
Crypto UDFN Socketed Dev Kit ( AT88CK101SK-MAH-XPRO )
(Not Recommended for new design)

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 Xplained Pro (XPRO) series, the kit includes a daughterboard that

...

Learn More
Add To Cart
Crypto Kit UDFN Socketed XPRO Development Board
Crypto Kit UDFN Socketed XPRO Development Board ( AT88CKSCKTUDFN-XPRO )

The AT88CKSCKTUDFN-XPRO is a Microchip XPRO extension kit for Microchip CryptoAuthentication™ 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/608A - Ecliptic Curve Security devices with I2C or Single Wire Interface ...

Learn More
Add To Cart
Crypto Kit SOIC Socketed XPRO Development Board
Crypto Kit SOIC Socketed XPRO Development Board ( AT88CKSCKTSOIC-XPRO )

The AT88CKSCKTSOIC-XPRO is a Microchip XPRO extension kit for Microchip CryptoAuthentication™ 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/608A - Ecliptic Curve Security devices with I2C or Single Wire Interface
...

Learn More
Add To Cart
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 or ATECC608A devices. Microchip has made it extremely easy and convenient to provision an ECC-based crypto element during production of the board/product that uses the ATECC508A or ATECC608A. Microchip provides three simple USB-based kits with

...

Learn More
Add To Cart
Software Libraries
CryptoAuthLib

CryptoAuthLib is a software support library for the ATSHA204A,

...

Learn More

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
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
0.142857
3
CONTACT
2.5x6.5x0.5mm
NiPdAu
e4
ATECC508A-MAHDA-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
ATECC508A-MAHDA-S
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
ATECC508A-MAHAW-S
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
ATECC508A-MAHCZ-S
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
ATECC508A-MAHCZ-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy