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Microchip Technology ATECC608B-TNGLORAS-B
- Part No.:
- ATECC608B-TNGLORAS-B
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Description:
- IC AUTHENTICATION CHIP 8SOIC
- Quantity:
Unit Price:$0
Ext Price:$0
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- Shipping:
Product Details
ATECC608B-TNGLORAS-B - Pre-provisioned LoRaWAN Secure Element
ATECC608B-TNGLORAS-B from Microchip Technology is a Trust&GO CryptoAuthentication secure element for The Things Industry LoRaWAN integration, supplied as a 10-unit bulk prototype order in an 8-lead SOIC package with an I2C host interface.
Electrical, pin and ordering details are based on Microchip's ATECC608B-TNGLoRaWAN controlled data sheet. Verify provisioning and network onboarding before deployment.
Overview
This device is a pre-configured ATECC608B variant designed to protect LoRaWAN credentials and support secure onboarding with the TTI ecosystem. Its key-slot policy and provisioning differ from a blank ATECC608B: select the exact TNGLORA ordering code for the intended network workflow. The host MCU communicates over I2C while cryptographic material remains under the secure element's access policy.
Key Advantages
Trust&GO configuration reduces the need to inject sensitive LoRaWAN keys at the board assembler.
The TNGLORA branch is documented for TTI Join Server integration.
I2C connection and sleep mode suit battery-powered sensor nodes when the host observes wake and sleep timing.
The S-B code identifies the 8-SOIC, 10-unit bulk prototype option; it is not the production reel code.
Feature Summary
Documented for LoRaWAN 1.0 and 1.1, including over-the-air activation workflows.
Protected slots support diversified parent keys, derived session keys, EUI-64 data and reassignment policy.
The data sheet documents a secp256r1 ECC private-key slot and I/O protection key alongside LoRaWAN key storage.
I2C interface with a one-time changeable device address; use the prescribed bus and command timing.
Package & Footprint
The registered package is 8-SOIC (0.154", 3.90mm Width). Microchip identifies the S option as an 8-lead SOIC; the B suffix denotes 10-unit bulk prototype ordering. Use the manufacturer land-pattern drawing, not this generic illustration, for final PCB dimensions.
- Match the pin-1 orientation to the top-view manufacturer drawing.
- Place I2C pull-ups and decoupling as required by the host bus design.
- Confirm body, lead pitch and solder footprint against Microchip's package specification.
The local package JPG is present; it is a generic mechanical depiction and does not identify device marking.
Pin Functions
Microchip's 8-lead SOIC top-view pin diagram assigns the following functions:
Pin numbering is top view; verify orientation at schematic and assembly review.
Key Specifications
| Exact order code | ATECC608B-TNGLORAS-B |
|---|---|
| Device role | Pre-provisioned LoRaWAN secure element for The Things Industry |
| Package | 8-lead SOIC; registered 8-SOIC (0.154", 3.90mm Width) |
| Ordering media | 10-unit bulk prototype option |
| Host interface | I2C |
| Supply voltage | 2.0 V to 5.5 V recommended operating range |
| Ambient temperature | -40 °C to +85 °C operating range |
| I2C clock | 0 to 1 MHz under specified AC conditions |
| Active current | 2 mA typical, 3 mA maximum while waiting for I/O or executing non-ECC commands; separate ECC limit applies |
| ECC execution current | 14 mA maximum at clock divider 0x0 |
| Idle current | 800 µA typical under data-sheet pin-level conditions |
| Sleep current | 30 nA typical, 150 nA maximum at VCC ≤ 3.6 V and TA ≤ +55 °C under specified pin conditions; 2 µA maximum over full VCC/temperature range |
| Supported LoRaWAN versions | 1.0 and 1.1, subject to host/network integration |
Typical, maximum and conditional values are identified separately. Consult the manufacturer data sheet for test methods and timing details.
Replacement Considerations
Microchip lists TNGLORAS-C and TNGLORAS-G as related 8-SOIC TTI options with different production packing. TNGLORAU-B uses an 8-UDFN footprint. None should be treated as an unconditional drop-in replacement: verify provisioning state, slot policies, network-provider association, package/footprint, temperature range, electrical limits and ordering media. No unverified internal alternative link is provided.
Manufacturer Information
Microchip Technology identifies this exact S-B order code in the ATECC608B-TNGLoRaWAN product-identification table as the TTI Trust&GO prototype variant. The complete controlled data sheet defines its pinout, electrical operating limits, slot configuration and software integration requirements.
Applications
Protects activation credentials and supports secure network joining.
Adds hardware-backed identity to connected infrastructure nodes.
Supports early TTI Join Server integration and host-software evaluation.
Pairs with a low-power host that manages the device's active, idle and sleep states.
Quality & Authenticity
Verify the complete TNGLORAS-B ordering code, lot traceability, package marking and provisioning records before use. A generic 8-SOIC appearance does not prove the TTI configuration or cryptographic identity of an individual device. Follow Microchip's handling and authentication procedures.
FAQ
What distinguishes the S-B code?
It identifies the TTI Trust&GO LoRaWAN 8-SOIC, 10-unit bulk prototype option.
Is this a blank ATECC608B?
No. It is a pre-configured variant with LoRaWAN-oriented credential and slot policies.
Can a production reel variant replace it automatically?
No. Confirm provisioning, network association, ordering and board-level requirements first.
What host signals are required?
The SOIC pinout uses SDA, SCL, VCC and GND; the remaining four pins are NC.
Engineering Notice
Review the latest Microchip ATECC608B-TNGLoRaWAN data sheet and TTI network onboarding instructions before schematic release, firmware integration or production provisioning. Security behavior depends on locked configuration and host commands; family resemblance alone does not establish software or credential compatibility.
ATECC608B-TNGLORAS-B Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoAuthentication™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
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