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Microchip Technology ATECC608B-TFLXTLSS
- Part No.:
- ATECC608B-TFLXTLSS
- 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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Product Details
ATECC608B-TFLXTLSS - TrustFLEX TLS Secure Element
ATECC608B-TFLXTLSS from Microchip Technology is a configurable TrustFLEX CryptoAuthentication secure element for TLS-oriented IoT authentication, ordered as a 2,000-unit reel production option in an 8-lead SOIC package with a provisioned I2C or single-wire (SWI) host interface.
The exact ordering code, pins and operating limits are checked against Microchip's controlled ATECC608B-TFLXTLS data sheet. Confirm certificate enrollment and host integration before deployment.
Overview
The TrustFLEX TLS variant supports protected device identity and cryptographic operations for secure IoT connections. Microchip states that its configuration is close to the related fixed-configuration TLS variant but allows selected certificate/key-slot data and locking choices through the Trust Platform Design Suite before ordering. A fixed-at-manufacture primary ECC key, certificate storage and selected I2C or SWI interface require verification against the provisioned configuration. The secure element does not by itself implement a full network protocol.
Key Advantages
A permanent primary P-256 private key is established at manufacturing and protected by the configured slot policy.
The documented family supports secure IoT TLS 1.2 and 1.3 use cases with compatible host software and the selected provisioned configuration.
Compressed X.509 certificate storage and customizable certificate slots support the selected certificate flow.
The S order code denotes an 8-SOIC, 2,000-unit reel provisioned production; I2C or SWI is selected during configuration.
Feature Summary
The data sheet describes a permanent primary P-256 key, an internal attestation-signing key and three regenerable secondary P-256 keys.
An I/O protection-key slot is available; applicable transfer protection depends on the selected interface and slot policy.
ECDH/KDF and a customizable symmetric secret slot support selected host security workflows.
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 unsuffixed S production code as 2,000-unit reel 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 the provisioned I2C or SWI interface, 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-TFLXTLS 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-TFLXTLSS |
|---|---|
| Device role | Provisioned TrustFLEX TLS secure element |
| Package | 8-lead SOIC; registered 8-SOIC (0.154", 3.90mm Width) |
| Ordering medium | 2,000-unit reel production option |
| Host interface | I2C or SWI, as provisioned |
| 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 TFLXTLSS-PROTO as the related prototype SOIC option and TFLXTLSU-PROTO as a UDFN prototype option. The selected interface, certificate/slot configuration and provisioning package can differ. 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-TFLXTLSS in its controlled TFLXTLS product-identification section as the TrustFLEX TLS provisioned 8-SOIC 2,000-unit reel production order code with I2C or SWI options. The TFLXTLS data sheet defines the selectable configuration, pins and electrical limits.
Applications
Protects device credentials used by compatible TLS client-authentication stacks.
Provides hardware-backed identity for networked sensing nodes.
Supports certificate and host-library integration for provisioned production devices.
Pairs with an MCU that manages I2C commands, power states and the full network protocol.
Quality & Authenticity
Verify the full TFLXTLSS 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 order code mean?
It identifies the TrustFLEX TLS provisioned production option in 8-SOIC, 2,000-unit reel; confirm the selected I2C or SWI interface.
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 TFLXTLS variant has specific pre-provisioned keys and slot policies; compare the full credential workflow first.
How do SOIC pins differ between I2C and SWI?
For I2C, pins 5 and 6 are SDA and SCL. For SWI, pin 5 is single-wire I/O and pin 6 is GPIO. Pins 4 and 8 are GND and VCC.
Engineering Notice
Review the current Microchip ATECC608B-TFLXTLS data sheet, selected provisioning configuration, 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-TFLXTLSS Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoAuthentication™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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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