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Analog Devices Inc./Maxim Integrated DS28E22P+
- Part No.:
- DS28E22P+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 6-SMD, J-Lead
- Description:
- IC AUTHENTICATION CHIP 6TSOC
- Quantity:
Unit Price:$3.52
Ext Price:$3.52
- Payment:
- Shipping:
Product Details
DS28E22P+ - 1-Wire SHA-256 Secure Authenticator with 2-Kbit EEPROM
DS28E22P+ from Analog Devices / Maxim Integrated is a DeepCover bidirectional secure authenticator with 2-Kbit user EEPROM in a 6-lead TSOC tube package.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
DS28E22 combines a hardware SHA-256 engine, protected secret storage, a unique 64-bit ROM ID and configurable user EEPROM over the single-contact 1-Wire bus.
Key Advantages
Provides symmetric-key challenge-and-response authentication with a hardware SHA-256 MAC engine.
Combines a unique factory ROM ID with eight protected 256-bit EEPROM pages.
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 authenticator
1-Wire, up to 76.9 kbps
3.3 V +/-10%; -40 C to +85 C
6-SMD, J-Lead
Package & Footprint
This ordering code uses the 6-SMD, J-Lead package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Authentication | Bidirectional symmetric-key SHA-256 |
|---|---|
| User EEPROM | 2048 bits |
| Organization | 8 pages of 256 bits |
| ROM ID | Unique factory-programmed 64-bit identifier |
| Interface | Single-contact 1-Wire |
| Maximum rate | 76.9 kbps |
| Supply | 3.3 V +/-10% |
| Standby current | 5 uA typical |
| Temperature | -40 C to +85 C |
| ESD | 8 kV HBM typical |
| Package | 6-TSOC |
| Ordering medium | Tube |
Replacement Considerations
DS28E22Q+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
The linked Q+T order code shares the DS28E22 function but uses a 6-TDFN exposed-pad package and tape-and-reel media; it is not footprint compatible.
Applications
Authenticates sensors, consumables and peripherals before enabling system features.
Protects configuration data and feature entitlements with authenticated EEPROM access.
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 authenticator
What package is used?
6-SMD, J-Lead
Can the related part be substituted directly?
No. Validate all electrical, mechanical and configuration differences first.
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.
DS28E22P+ Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- DeepCover®
- Package/Case:
- 6-SMD, J-Lead
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- Authentication, Security
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOC
- Grade:
- -
- Qualification:
- -
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Inventory:1,170
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In Stock:1,170
| Qty. | Unit Price | Ext. Price |
| 1+ | $3.52 | $3.52 |
| 10+ | $2.67 | $26.70 |
| 25+ | $2.45 | $61.25 |
| 120+ | $2.20 | $264.00 |
| 360+ | $2.07 | $745.20 |
| 600+ | $2.03 | $1218.00 |
| 1080+ | $1.98 | $2138.40 |
| 2520+ | $1.93 | $4863.60 |
