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Microchip Technology ATECC508A-SSHDA-B
- Part No.:
- ATECC508A-SSHDA-B
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Description:
- IC AUTHENTICATION CHIP 8SOIC
- Quantity:
Unit Price:$0.79
Ext Price:$0.79
- Payment:
- Shipping:
Product Details
ATECC508A-SSHDA-B - ECC-P256 I2C Secure Element, SOIC Tube
ATECC508A-SSHDA-B from Microchip Technology is an ECC-P256 authentication IC with 10-Kbit protected EEPROM in an 8-lead SOIC tube.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
ATECC508A supports ECDSA signatures, ECDH key agreement, SHA-256 and HMAC with hardware key storage. SSHDA-B selects I2C and the 100-piece SOIC tube.
Key Advantages
Hardware-protected ECC keys and authentication.
Standard 8-lead SOIC assembly format.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
ECC-P256 secure authentication and key agreement
I2C, up to 1 MHz
2.0 to 5.5 V; -40 to +85 C
8-SOIC
Package & Footprint
This ordering code uses the 8-SOIC package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Algorithm | ECC P-256 ECDSA and ECDH |
|---|---|
| Protected slots | Up to 16 keys, certificates or data items |
| Serial number | Unique 72-bit device identifier |
| Interface | I2C, up to 1 MHz |
| Supply voltage | 2.0 to 5.5 V |
| I/O voltage | 1.8 to 5.5 V |
| Temperature | -40 to +85 C |
| Sleep current | Less than 150 nA under stated conditions |
| Counters | Two high-endurance monotonic counters |
| Provisioning | Irreversible configuration and key-slot locks require controlled provisioning |
| Package | 8-lead 0.150-inch SOIC |
| Packaging | Tube, 100 pieces |
| Lifecycle | Not Recommended for New Designs |
| Hash functions | SHA-256 and HMAC; no AES accelerator is specified for ATECC508A |
| EEPROM | 10 Kbit for keys, certificates and data |
Replacement Considerations
ATECC508A-SSHDA-T is a related product in the library. Confirm electrical behavior, package, pinout, ordering media and configuration before substitution.
Similarity of family name or package does not establish drop-in compatibility.
Manufacturer Information
Microchip marks the ATECC508A family Not Recommended for New Designs. The summary data sheet confirms SSHDA-B I2C SOIC tube packaging.
Applications
Maintain authenticated network identity in qualified designs.
Protect credentials for replaceable modules.
Quality & Authenticity
Match the complete ordering code, package marking and reel or lot label to authorized-channel records. Inspect moisture handling and solderability requirements before assembly.
FAQ
What is the main function?
ECC-P256 secure authentication and key agreement
What package is used?
8-SOIC
Can the related part be substituted directly?
No. Validate all electrical, mechanical and configuration differences first.
Is the package image ready?
Yes. The registered package JPG is present locally.
Engineering Notice
Use the latest manufacturer documentation for schematic, PCB, thermal and production approval. Distributor attributes are useful for sourcing but do not replace the official data sheet.
ATECC508A-SSHDA-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:
- Networking and Communications
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
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Inventory:106,455
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In Stock:106,455
| Qty. | Unit Price | Ext. Price |
| 1+ | $0.79 | $0.79 |
| 25+ | $0.66 | $16.50 |
| 100+ | $0.64 | $64.00 |
