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Analog Devices Inc./Maxim Integrated DS28E25+
- Part No.:
- DS28E25+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- TO-226-2, TO-92-2 (TO-226AC)
- Description:
- IC AUTHENTICATION CHIP TO92-2
- Quantity:
Unit Price:$2.75
Ext Price:$2.75
- Payment:
- Shipping:
Product Details
DS28E25+ - DS28E25 1-Wire SHA-256 Secure Authenticator
DS28E25+ from Analog Devices Inc./Maxim Integrated is a bidirectional SHA-256 secure authenticator with 4 Kb protected EEPROM and a unique 64-bit 1-Wire identity.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
DS28E25 authenticates both host and peripheral with hardware SHA-256 and protects sixteen 256-bit EEPROM pages using irreversible access-control modes.
Key Advantages
A protected secret and hardware MAC engine provide strong accessory authentication without exposing key material.
The unique ROM ID and single-contact 1-Wire bus simplify identification and multi-device addressing.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
1-Wire SHA-256 secure authenticator
1-Wire up to 76.9 kbps
3.3 V +/-10%; -40 C to +85 C
TO-226-2, TO-92-2 (TO-226AC)
Package & Footprint
This ordering code uses the TO-226-2, TO-92-2 (TO-226AC) package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Authentication | Bidirectional SHA-256 |
|---|---|
| EEPROM | 4096 bits, sixteen 256-bit pages |
| Protection | Authenticated read/write, read protect and OTP emulation |
| Identifier | Factory-programmed 64-bit ROM ID |
| Interface | 1-Wire |
| Speed | Up to 76.9 kbps |
| Standby | 5 uA typical |
| ESD | +/-8 kV HBM typical |
| Supply | 3.3 V +/-10% |
| Temperature | -40 C to +85 C |
| Package | TO-92 through-hole |
Replacement Considerations
DS28E25+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
Exact production bulk TO-92 order code verified against the manufacturer selection table and Rev.4 data sheet.
Applications
Verifies sensors, cartridges and network-attached appliances.
Protects configuration and calibration data against unauthorized changes.
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?
1-Wire SHA-256 secure authenticator
What package is used?
TO-226-2, TO-92-2 (TO-226AC)
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.
DS28E25+ Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- DeepCover®
- Package/Case:
- TO-226-2, TO-92-2 (TO-226AC)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Authentication Chip
- Applications:
- Authentication, Security
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-2
- Grade:
- -
- Qualification:
- -
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Inventory:1,422
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In Stock:1,422
| Qty. | Unit Price | Ext. Price |
| 1+ | $2.75 | $2.75 |
| 10+ | $2.08 | $20.80 |
| 100+ | $1.73 | $173.00 |
| 2000+ | $1.51 | $3020.00 |
