ATECC608A-TNGLORAU-B Microchip Integrated Circuit (Small Outline No-lead) In Stock
ATECC608A-TNGLORAU-B is a Microchip Trust&GO pre-provisioned secure element designed for LoRaWAN networks, delivered in a 2 mm × 3 mm UDFN-8 package. It provides hardware-based key storage and cryptographic acceleration using 2 V to 5.5 V supply. Available in 10-piece bulk packs with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- ATECC608A-TNGLORAU-B Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATECC608A-TNGLORAU-B?
- Factory-provisioned with LoRaWAN join credentials, eliminating in-field key injection and reducing provisioning time to zero
- Hardware-isolated key storage with 16 general-purpose ECC P-256 or SHA-256 key slots that never expose private keys outside the device
- Ultra-compact 2 mm × 3 mm UDFN-8 footprint and I2C interface enable integration even in very small LoRa end-node PCBs
What is ATECC608A-TNGLORAU-B used for?
The ATECC608A-TNGLORAU-B is purpose-built for LoRaWAN IoT end nodes such as smart utility meters, environmental sensors, and asset trackers that require secure OTAA join without custom provisioning infrastructure. Its hardware cryptographic engine offloads ECDSA and AES-128 operations from the host MCU, reducing firmware complexity and protecting session keys throughout the device lifetime. Designers targeting IEC 62443 or similar security certifications benefit from the tamper-resistant key storage combined with factory LoRaWAN credential provisioning.
What are the specifications of ATECC608A-TNGLORAU-B?
| Manufacturer Package Code | UDFN-8 |
| YTEOL | 0 |
| JESD-30 Code | R-PDSO-N8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | CRYPTOGRAPHIC AUTHENTICATOR |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.30 |
Where can I find the ATECC608A-TNGLORAU-B datasheet?
ATECC608A-TNGLORAU-B Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for ATECC608A-TNGLORAU-B?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the ATECC608A-TNGLORAU-B simplify LoRaWAN OTAA provisioning compared to software key management?
The ATECC608A-TNGLORAU-B ships with factory-provisioned LoRaWAN OTAA credentials stored in hardware, so no custom key-injection step is required on the production line. The device holds the AppKey in a hardware-protected slot that never exposes the key outside the chip, supporting AES-128 session key derivation directly on-chip. This eliminates key-management server infrastructure and reduces provisioning time to near zero for high-volume LoRaWAN deployments.
What supply voltage range does the ATECC608A-TNGLORAU-B support, and does it fit energy-harvesting powered nodes?
The ATECC608A-TNGLORAU-B operates from 2 V to 5.5 V, making it compatible with coin-cell, supercapacitor, and energy-harvesting power rails common in maintenance-free IoT nodes. The deep-sleep current is typically 150 nA, which is low enough to sustain multi-year battery life in intermittent-transmission LoRaWAN sensors that wake, authenticate, and transmit every few minutes.
For a board with very tight space constraints, how large is the UDFN-8 footprint and what I2C address flexibility does the device offer?
The UDFN-8 package measures 2 mm × 3 mm with 0.5 mm pitch, occupying less than 6 mm² of PCB area — far smaller than a standard SOIC-8 at roughly 30 mm². The ATECC608A-TNGLORAU-B communicates over a single-wire I2C-compatible bus at up to 1 MHz, and address selection allows up to 8 devices on one bus, useful when pairing multiple secure elements in a multi-channel sensor design.
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