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Microchip Technology ATSHA204A-STUCZ-T
- Part No.:
- ATSHA204A-STUCZ-T
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Description:
- IC AUTHENTICATION CHIP SOT23-3
- Quantity:
Unit Price:$0
Ext Price:$0
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- Shipping:
Product Details
ATSHA204A-STUCZ-T - Microchip SHA-256 CryptoAuthentication™ IC (SOT-23)
The ATSHA204A-STUCZ-T is a high-security CryptoAuthentication™ device from Microchip Technology. It provides advanced hardware-based security for SHA-256 hash algorithm applications, including message authentication code (MAC) and hash-based message authentication code (HMAC). Housed in a space-saving SOT-23 package, it is engineered for ultra-compact applications requiring robust anti-cloning protection and hardware root-of-trust.
Product Focus: This version utilizes the ultra-compact SOT-23 footprint, ideal for space-constrained designs where PCB real estate is at a premium.
Overview & Security Architecture
The ATSHA204A-STUCZ-T delivers enterprise-grade security in a minimalist form factor. It features a secure 4.5Kb EEPROM designed to store keys, certificates, and non-volatile configuration data, shielded by sophisticated hardware-level anti-tamper mechanisms.
By executing the SHA-256 algorithm within a dedicated, isolated hardware zone, the device ensures that sensitive keys are never exposed to the host system. It includes a high-quality Random Number Generator (RNG) to generate cryptographically strong challenges for secure authentication sessions.
About Microchip Technology
Microchip Technology Inc. is a global leader in secure embedded control solutions. Their CryptoAuthentication™ product line is the industry gold standard for implementing hardware-based root-of-trust in IoT, industrial, and consumer electronics.
Microchip provides scalable, low-power security ICs that empower developers to effectively defend their intellectual property against cloning and sophisticated tampering.
Key Advantages
Provides high-speed, ultra-secure cryptographic authentication that cannot be extracted via software exploits.
SOT-23 package saves maximum PCB space, specifically designed for small-form-factor cable and peripheral integration.
Includes a 4.5Kb EEPROM with protected zones for secure storage of keys, certificates, and configuration data.
Uses a high-speed Single-Wire Interface (SWI), minimizing the number of pins required on the host microcontroller.
Package & Physical Specs
The ATSHA204A-STUCZ-T is supplied in the ultra-small SOT-23 package.
- Package Code: ST (SOT-23 standard).
- Dimensions: Compact surface-mount footprint.
- Operating Temp: Industrial range -40°C to +85°C.
- RoHS Status: Lead-Free and Green compliant.
Pin Functions
Designed for simplified connectivity, the SOT-23 pinout supports Single-Wire communication.
Technical Specifications
| Manufacturer | Microchip Technology |
|---|---|
| Algorithm | SHA-256 |
| Secure Storage | 4.5 Kb EEPROM |
| Voltage Supply | 2.0V to 5.5V |
| Interface | Single-Wire (SWI) |
| Package | SOT-23 |
Equivalent & Replacement Guide
Replacement options for the ATSHA204A-STUCZ-T should focus on footprint and interface requirements.
- RJGT103TS (Runjer): Pin-to-pin functional equivalent.
- ATSHA204A-SSHD-T: Same internal security functionality, but in an 8-pin SOIC package.
Typical Application Fields
Medical Consumables
Securing disposable medical probes and sensors to prevent unauthorized reuse.
Smart Cable/Battery Auth
Anti-cloning protection for high-speed charging cables and power battery packs.
Quality & Authenticity
- Tamper Evidence: Integrated active shields protect against physical probing.
- Verified Source: Always source from authorized Microchip distributors to ensure genuine silicon.
Frequently Asked Questions
Can the ATSHA204A-STUCZ-T operate on a single-wire interface only?
Is the chip field-programmable?
Disclaimer
ATSHA204A-STUCZ-T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoAuthentication™
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- Networking and Communications
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Grade:
- -
- Qualification:
- -
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