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Microchip Technology ATECC608B-TNGTLSS-B
- Part No.:
- ATECC608B-TNGTLSS-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-TNGTLSS-B - Trust&GO TLS Secure Element
ATECC608B-TNGTLSS-B from Microchip Technology is a pre-provisioned CryptoAuthentication secure element for TLS-oriented IoT authentication, ordered as a 10-unit bulk prototype option in an 8-lead SOIC package with an I2C host interface.
The exact ordering code, pins and operating limits are checked against Microchip's controlled ATECC608B-TNGTLS data sheet. Confirm certificate enrollment and host integration before deployment.
Overview
The Trust&GO TLS configuration provides protected device identity and cryptographic operations for secure IoT connections. Its manufacturing-time primary ECC key, certificate storage and defined slot policies distinguish it from an unconfigured ATECC608B. The host uses I2C commands and integrates the device with a suitable TLS stack; the secure element does not by itself implement the complete network protocol.
Key Advantages
A permanent primary P-256 private key is established at manufacturing and protected by the configured slot policy.
The documented configuration supports secure IoT TLS 1.2 and 1.3 connection use cases with compatible host software.
Compressed X.509 certificate storage helps reduce host-side storage for the supported certificate flow.
The S-B order code denotes the 8-SOIC, I2C, 10-unit bulk prototype option rather than a production reel.
Feature Summary
The data sheet describes a permanent primary P-256 key, an internal attestation-signing key and three regenerable secondary P-256 keys.
A designated protection-key slot can protect selected I2C transfers under the device policy.
An ECDH/KDF-capable slot supports approved key-derivation workflows when integrated by the host.
Active, idle and sleep modes allow host-managed low-power operation subject to wake timing.
Package & Footprint
The registered package is 8-SOIC (0.154", 3.90mm Width). Microchip identifies the S option as an 8-lead SOIC and the B option as 10-unit bulk prototype ordering. Check the manufacturer's mechanical drawing and land pattern for PCB release.
- Verify pin-1 orientation from the Microchip top-view pin diagram.
- Check I2C pull-ups, supply decoupling and host voltage levels.
- Use the controlled SOIC mechanical dimensions for the footprint.
The local JPG is a generic package depiction, not proof of device identity or provisioning.
Pin Functions
The Microchip ATECC608B-TNGTLS 8-lead SOIC top-view diagram assigns:
Pin numbering is top view; verify orientation at schematic and assembly review.
Key Specifications
| Exact order code | ATECC608B-TNGTLSS-B |
|---|---|
| Device role | Pre-provisioned Trust&GO TLS secure element |
| Package | 8-lead SOIC; registered 8-SOIC (0.154", 3.90mm Width) |
| Ordering medium | 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 |
| ECC execution current | 14 mA maximum at clock divider 0x0 |
| Idle current | 800 µA typical under specified pin-level conditions |
| Sleep current | 30 nA typical and 150 nA maximum at VCC ≤ 3.6 V, TA ≤ +55 °C under stated conditions; 2 µA maximum across full VCC and temperature range |
| Primary ECC key | P-256 private key fixed at manufacturing |
Typical, maximum and conditional values are separated. Review the complete Microchip electrical tables before design sign-off.
Replacement Considerations
Microchip lists TNGTLSS-C and TNGTLSS-G as related SOIC ordering options with different production media, and TNGTLSU-B as a UDFN prototype option. None is an unconditional drop-in substitute. Check provisioning and certificate flow, ordering quantity, package footprint, I2C behavior, temperature range and host software before substitution. No unverified internal alternative link is provided.
Manufacturer Information
Microchip Technology identifies ATECC608B-TNGTLSS-B in its controlled TNGTLS product-identification section as the Trust&GO TLS prototyping 8-SOIC I2C order code. The same data sheet defines its slot access policies, SOIC pinout, electrical limits and host command behavior.
Applications
Protects device credentials used by compatible TLS client-authentication stacks.
Provides hardware-backed identity for networked sensing nodes.
Supports early certificate and host-library integration evaluation.
Pairs with an MCU that manages I2C commands, power states and the full network protocol.
Quality & Authenticity
Verify the full TNGTLSS-B ordering code, lot traceability, certificate identity and provisioning records. A generic SOIC appearance cannot establish the embedded key configuration. Follow Microchip handling and authentication guidance for incoming inspection.
FAQ
What does the S-B order code mean?
It identifies the Trust&GO TLS 8-SOIC I2C, 10-unit bulk prototype option.
Does the secure element run TLS alone?
No. A compatible host TLS stack manages the protocol and calls the device for protected cryptographic operations.
Can a blank ATECC608B replace it directly?
No. The TNGTLS variant has specific pre-provisioned keys and slot policies; compare the full credential workflow first.
Which SOIC pins carry I2C?
Pin 5 is SDA and pin 6 is SCL; pins 4 and 8 are GND and VCC.
Engineering Notice
Review the current Microchip ATECC608B-TNGTLS data sheet, certificate-chain requirements and host-library documentation before schematic release or production enrollment. Electrical compatibility alone does not establish trust-policy or certificate compatibility.
ATECC608B-TNGTLSS-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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