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Microchip Technology ATSHA204A-RBHCZ-T
- Part No.:
- ATSHA204A-RBHCZ-T
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 3-SMD, No Lead
- Description:
- IC AUTHENTICATION CHIP 3SMD
- Quantity:
Unit Price:$0.53
Ext Price:$0.53
- Payment:
- Shipping:
Product Details
ATSHA204A-RBHCZ-T - SHA-256 Hardware Authentication Coprocessor
ATSHA204A-RBHCZ-T from Microchip Technology is a hardware authentication coprocessor with protected key storage, SHA-256 acceleration and a single-wire interface.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
ATSHA204A stores secret keys in tamper-resistant EEPROM and performs SHA-256 authentication without exposing those keys to the host.
Key Advantages
Protects device identity and symmetric keys in dedicated hardware.
Offloads SHA-256 challenge-response and random-number generation from the MCU.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
Secure key storage and SHA-256 challenge-response authentication
Single-wire interface for the CZ order code
2.0 V to 5.5 V; industrial temperature range; single-wire interface
3-SMD, No Lead
Package & Footprint
This ordering code uses the 3-SMD, No Lead package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Secure slots | 16 |
|---|---|
| Key length | 256 bit |
| Authentication | SHA-256 challenge-response |
| Random number generator | Hardware RNG |
| Secure storage | Protected EEPROM zones |
| Interface | Single-wire |
| Supply range | 2.0 V to 5.5 V |
| Sleep current | Low-power sleep mode |
| Provisioning | Configuration zone locks security policy |
| Package | 3-SMD, No Lead |
Replacement Considerations
The linked record is an alternate ordering or reel code from the same device family; confirm package and assembly media.
Manufacturer Information
Microchip lists the exact order code as active or in production.
Applications
Authenticates embedded nodes and accessories using protected symmetric keys.
Supplies hardware-rooted secrets and message authentication for host firmware.
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?
Secure key storage and SHA-256 challenge-response authentication
What package is used?
3-SMD, No Lead
Is a verified internal replacement available?
No exact internal replacement was verified. Review any candidate against the manufacturer documentation.
Is the package image ready?
No. The registered package JPG is currently missing.
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.
ATSHA204A-RBHCZ-T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoAuthentication™
- Package/Case:
- 3-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- Networking and Communications
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-SMD
- Grade:
- -
- Qualification:
- -
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