ATECC608C | Microchip Technology

Fully Customizable Secure Authentication IC

ATECC608C

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Status: In Production
Network and accessories secure authentication

Overview

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  • Algorithm Type:ECC-P256 (ECDH and ECDSA), SHA256, AES128-GCM
  • Interface Type:Single-wire; I2C
  • Standby Typical (uA):0.03
  • Cryptographic co-processor with secure hardware-based key storage
  • Protected storage for up to 16 Keys, certificates or data
  • ECDH: FIPS SP800-56A Elliptic Curve Diffie-Hellman (ECDH)
  • NIST standard P256 elliptic curve support (ECC)
  • Hardware support for symmetric algorithms
  • SHA-256 & HMAC hash including off-chip context save/restore
  • AES-128: encrypt/decrypt, galois field multiply for GCM
  • Networking key management support
  • Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3
  • Ephemeral key generation and key agreement in SRAM – Small message encryption with keys entirely protected
  • Secure boot support
  • Full ECDSA code signature validation, optional stored digest/signature – optional communication key disablement prior to secure boot
  • Encryption/Authentication for messages to prevent on-board attacks
  • Internal high-quality FIPS 800-90 A/B/C Random Number Generator (RNG)
  • Two high-endurance monotonic counters
  • Guaranteed unique 72-bit serial number
  • Two interface options available
  • High-speed single pin interface with One GPIO pin
  • 8-pad UDFN, 8-lead SOIC, and 3-lead CONTACT packages
  • Operating temperature up to 100C
  • <150nA Sleep current
  • 1.8V to 5.5V IO levels, 2.0V to 5.5V supply voltage
  • 1MHz Standard I2C interface

The Microchip ATECC608C 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, medical, as well as accessories and consumables authentication and more. In addition, the ATECC608C offer an integrated AES hardware accelerator strengthening hardware based security and enable secure boot capabilities for very small microcontrollers. 


The ATECC608C is a secure element from the Microchip CryptoAuthenticationTM 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. Similar to all Microchip CryptoAuthentication products, the new ATECC608C employs ultra-secure hardware-based cryptographic key storage and cryptographic countermeasures which eliminate potential backdoors linked to software weaknesses.


The device is agnostic of any microprocessor (MPU) or microcontroller (MCU) and compatible with Microchip AVR/ARM MCUs or MPUs. As with all CryptoAuthentication devices, the ATECCC608C 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.

To help accelerating your development, take a look at the Trust Platform for the ATECC608C and consider :

- ATECC608C Trust&GO for TLS based network secure authentication. The device comes pre-provisioned secure element with a generic static certificate to reduce third party certificate authority costs. No configuration needed allowing you to focus solely on your application code. Compatible with AWS IoT Multi-account registration architecture. 

- ATECC608C TrustFLEX for TLS based network secure authentication in addition to many more use cases. The device comes pre-configured device with more use cases than just the device to cloud secure authentication Trust&GO offer. It offers pre-architected implementation for accessory authentication, firmware validation, secure boot assistance, key rotation and more. Compatible for AWS IoT, Microsoft Azure and in general any TLS networks with code examples for WolfSSL, mBedTLS, CycloneSSL. 

- ATECC608C TrustCUSTOM secure element is a fully customizable device in case your security architecture demands to go beyond the Trust&GO and TrustFLEX use cases. 

- For Linux systems, the Trust Platform ATECC608C variances leverage the PKCS#11 interface between the microprocessor and the secure element. Check our code example. 

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atecc608c
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Catalog Parts for ATECC608C

All parts

8
3
UDFN
SOIC
CONTACT
-40C to +100C
-40C to +85C
T/R
TUBE
$0.55
$0.51
$0.81
$0.53
$0.49
$0.59
ATECC608C-MAVDA-S
8 UDFN -40C to +100C T/R $0.55
In Stock Now
View Samples

ECC/ECDH, 100C, I2C, small 3K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 10,911
Partial Tape and Reel
Up to 1911 partial units estimated to ship on 07-Sep-2026
Full Tape and Reel
Up to 9000 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 17-Oct-2026
Buy Now Pricing
1-24
25-99
100 +
$0.83
$0.69
$0.63
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.58
*$0.55
ATECC608C-SSHDA-T
8 SOIC -40C to +85C T/R $0.51
Available To Order Now
View Samples

ECC/ECDH, I2C, SOIC T/R

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
Available To Order Now
Place your order today and we can ship on 06-Feb-2027. Larger volumes may require additional time. Order now, estimated to ship on 06-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.77
$0.64
$0.58
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.54
*$0.51
ATECC608C-RBHCZ-B
3 CONTACT -40C to +85C TUBE $0.81
Available To Order Now
Please select a different part available in this familyView Samples

ECDH/ECC 10Kb, 3-CONTACT, SWI, Bulk

Country of Origin: Thailand
This product is only available for purchase with an approved quote. Request a Quote
Available To Order Now
Place your order today and we can ship on 17-Oct-2026. Larger volumes may require additional time. Order now, estimated to ship on 17-Oct-2026
Buy Now Pricing
1-24
25-99
100 +
$1.23
$1.02
$0.93
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.86
*$0.81
ATECC608C-MAHCZ-S
8 UDFN -40C to +85C T/R $0.53
In Stock Now
View Samples

ECC/ECDH SWI, small 3K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 5,890
Partial Tape and Reel
Up to 2890 partial units estimated to ship on 07-Sep-2026
Full Tape and Reel
Up to 3000 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 13-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.80
$0.67
$0.61
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.56
*$0.53
ATECC608C-SSVDA-T
8 SOIC -40C to +100C T/R $0.53
In Stock Now
View Samples

ECC/ECDH, 100C, I2C, SOIC T/R

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 2,314
Partial Tape and Reel
Up to 2314 partial units estimated to ship on 07-Sep-2026
Full Tape and Reel
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 10-Oct-2026
Buy Now Pricing
1-24
25-99
100 +
$0.80
$0.67
$0.61
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.56
*$0.53
ATECC608C-SSHCZ-T
8 SOIC -40C to +85C T/R $0.49
In Stock Now
View Samples

ECC/ECDH, SWI, SOIC T/R

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 975
Partial Tape and Reel
Up to 975 partial units estimated to ship on 07-Sep-2026
Full Tape and Reel
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 06-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.73
$0.61
$0.56
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.51
*$0.49
ATECC608C-SSHCZ-B
8 SOIC -40C to +85C TUBE $0.51
In Stock Now
Please select a different part available in this familyView Samples

ECC/ECDH, SWI, SOIC Bulk

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 9,700
Partial TUBE
Full TUBE
Up to 9700 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 06-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.76
$0.64
$0.58
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.53
*$0.51
ATECC608C-MAHCZ-T
8 UDFN -40C to +85C T/R $0.51
Available To Order Now
View Samples

ECC/ECDH, SWI, 15K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
Available To Order Now
Place your order today and we can ship on 13-Feb-2027. Larger volumes may require additional time. Order now, estimated to ship on 13-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.77
$0.64
$0.58
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.54
*$0.51
ATECC608C-MAHDA-S
8 UDFN -40C to +85C T/R $0.53
Available To Order Now
View Samples

ECC/ECDH, I2C, small 3K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
Available To Order Now
Place your order today and we can ship on 13-Feb-2027. Larger volumes may require additional time. Order now, estimated to ship on 13-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.80
$0.67
$0.61
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.56
*$0.53
ATECC608C-MAHDA-T
8 UDFN -40C to +85C T/R $0.51
Order Incoming Factory Stock Now
View Samples

ECC/ECDH, I2C, 15K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
Order Incoming Factory Stock Now
Additional Stock Arriving. You can secure stock by ordering now, and we will ship the product up to the ordered quantities on the dates given below. Incoming Factory Stock. Order Now to Secure

Up to 3050 partial units estimated to ship on 19-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 13-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.77
$0.64
$0.58
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.54
*$0.51
ATECC608C-SSHDA-B
8 SOIC -40C to +85C TUBE $0.53
In Stock Now
Please select a different part available in this familyView Samples

ECC/ECDH, I2C, SOIC Bulk

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 2,706
Partial TUBE
Up to 6 partial units estimated to ship on 07-Sep-2026
Full TUBE
Up to 2700 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 06-Feb-2027
Buy Now Pricing
1-24
25-99
100 +
$0.80
$0.67
$0.61
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.56
*$0.53
ATECC608C-MAVDA-T
8 UDFN -40C to +100C T/R $0.53
In Stock Now
View Samples

ECC/ECDH, 100C, I2C, 15K reel UDFN

Country of Origin: Taiwan, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 30,000
Partial Tape and Reel
Full Tape and Reel
Up to 30000 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 17-Oct-2026
Buy Now Pricing
1-24
25-99
100 +
$0.80
$0.67
$0.61
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.56
*$0.53
ATECC608C-RBHCZ-T
3 CONTACT -40C to +85C T/R $0.59
In Stock Now
View Samples

ECDH/ECC 10Kb, 3-CONTACT, SWI, T/R

Country of Origin: Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 4,975
Partial Tape and Reel
Up to 4975 partial units estimated to ship on 07-Sep-2026
Full Tape and Reel
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 20-Nov-2026
Buy Now Pricing
1-24
25-99
100 +
$0.89
$0.74
$0.67
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.62
*$0.59
ATECC608C-SSVDA-B
8 SOIC -40C to +100C TUBE $0.55
In Stock Now
Please select a different part available in this familyView Samples

ECC/ECDH, 100C, I2C, SOIC Bulk

Country of Origin: China, Thailand
This product is only available for purchase with an approved quote. Request a Quote
In Stock Now: 10,680
Partial TUBE
Up to 80 partial units estimated to ship on 07-Sep-2026
Full TUBE
Up to 10600 full units estimated to ship on 09-Sep-2026
This lead time represents a snapshot in time. Actual delivery may vary depending on order timing, volume, and other factors. Microchip remains committed to meeting or improving our committed dates to the best of our ability.Lead Time For Additional Quantities

Additional quantities estimated to ship by 10-Oct-2026
Buy Now Pricing
1-24
25-99
100 +
$0.83
$0.69
$0.63
Estimated Large-Quantity Pricing
1000-4999
5000 +
*$0.58
*$0.55

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