ATECC608B-TNGTLS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip ATECC608B-TNGTLS is a secure element IC with hardware-accelerated cryptographic engines, pre-provisioned for Trust&GO TLS use cases, operating from -40°C to +85°C. It supports ECDH, ECDSA, AES-128, and SHA-256 in an 8-pin SOIC package, enabling IoT device authentication and secure key storage.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- ATECC608B-TNGTLS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Hardware-accelerated ECDH and ECDSA cryptographic engines for fast asymmetric operations
- Pre-provisioned for Trust&GO TLS enabling zero-touch certificate provisioning
- AES-128 and SHA-256 support for symmetric encryption and message authentication
- Operates across -40°C to +85°C industrial temperature range in compact 8-pin SOIC
Applications
The ATECC608B-TNGTLS is designed for IoT edge devices requiring secure TLS mutual authentication without manual certificate management. It enables hardware root of trust in connected sensors, smart meters, and industrial gateways by storing private keys in a tamper-resistant secure element. Its pre-provisioned Trust&GO certificates streamline mass-production deployment for cloud-connected embedded systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ATECC608B-TNGTLS:
Trust & Go TLS, Provisioned Proto Typing, 8-UDFN, I2C, (10 bulk)
Frequently Asked Questions
What cryptographic algorithms does the ATECC608B-TNGTLS support for IoT device authentication?
The ATECC608B-TNGTLS supports ECDH key agreement, ECDSA digital signatures using P-256 curves, AES-128 symmetric encryption, and SHA-256 hashing. These hardware-accelerated engines provide full TLS 1.2 and 1.3 handshake capability for secure mutual authentication between IoT devices and cloud servers.
How does the Trust&GO pre-provisioning feature simplify production deployment compared to manually managing certificates?
The ATECC608B-TNGTLS ships with a pre-loaded secure certificate chain provisioned by Microchip, eliminating the need for on-site key injection during manufacturing. This reduces production time by removing certificate management from the factory floor while maintaining a hardware-secure 256-bit ECC private key that never leaves the device.
Which temperature range does the ATECC608B-TNGTLS support, making it suitable for outdoor IoT deployments?
The ATECC608B-TNGTLS operates across an industrial temperature range of -40°C to +85°C, making it suitable for outdoor smart meters, environmental sensors, and industrial gateway modules exposed to harsh thermal conditions. This range also meets many automotive-adjacent and telecommunications infrastructure standards.
For a compact IoT sensor design, how small is the ATECC608B-TNGTLS footprint, and what interface does it use?
The ATECC608B-TNGTLS is housed in an 8-pin SOIC package with a minimal PCB footprint, communicating over a single-wire I2C or SWI interface requiring only 2 signal lines. This compact form factor and simple wiring make it easy to integrate a hardware security element into space-constrained sensor nodes alongside a host MCU.
When should a design team choose ATECC608B-TNGTLS over a software-only TLS stack running on the host MCU?
Teams should choose ATECC608B-TNGTLS over software TLS when private key protection is critical, since software keys stored in MCU flash can be extracted through debug ports or firmware dumps. The secure element physically isolates the 256-bit ECC key so that even a compromised host cannot expose credentials, meeting security requirements for IEC 62443 and similar industrial standards.
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