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Analog Devices Inc./Maxim Integrated DS28E22Q+T
- Part No.:
- DS28E22Q+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 6-WDFN Exposed Pad
- Description:
- IC AUTHENTICATION CHIP 6TDFN
- Quantity:
Unit Price:$1.62
Ext Price:$1.62
- Payment:
- Shipping:
Product Details
DS28E22Q+T - DeepCover SHA-256 1-Wire Authenticator
DS28E22Q+T from Analog Devices Inc./Maxim Integrated is a secure 1-Wire authenticator with SHA-256 challenge-response, protected EEPROM and a unique factory ROM ID in WDFN-6.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
DS28E22 combines a hardware SHA-256 engine, secret-key storage, protected user EEPROM and a unique 64-bit ROM ID on a minimalist 1-Wire interface.
Key Advantages
Authentication is documented for the intended function.
Integrated implementation reduces external circuitry and supports traceable production designs.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
SHA-256 secure memory authenticator
Bidirectional 1-Wire data and power
Refer to the exact-order-code limits in the manufacturer data sheet.
6-WDFN Exposed Pad
Package & Footprint
This ordering code uses the 6-WDFN Exposed Pad package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Authentication | SHA-256 challenge-response |
|---|---|
| Interface | 1-Wire |
| Identity | Unique factory 64-bit ROM ID |
| User memory | Protected EEPROM |
| Security | DeepCover countermeasures |
| Communication | Single data line plus ground |
| Package | 6-WDFN exposed pad |
| Packing | Tape and Reel |
Replacement Considerations
Validate electrical, protocol, package and qualification differences before substitution.
Manufacturer Information
Exact order code and manufacturer documentation were checked.
Applications
Verifies batteries, sensors and consumables before use.
Binds protected memory and identity to a physical component.
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?
SHA-256 secure memory authenticator
What package is used?
6-WDFN Exposed Pad
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.
DS28E22Q+T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- DeepCover®
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- Authentication, Security
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TDFN (3x3)
- Grade:
- -
- Qualification:
- -
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