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Analog Devices Inc./Maxim Integrated DS28EL22Q+T
- Part No.:
- DS28EL22Q+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 6-WDFN Exposed Pad
- Description:
- IC AUTHENTICATION CHIP 6TDFN
- Quantity:
Unit Price:$3.50
Ext Price:$3.50
- Payment:
- Shipping:
Product Details
DS28EL22Q+T - 1-Wire SHA-256 Secure Authenticator, 6-Pin TDFN
DS28EL22Q+T from Analog Devices is a bidirectional 1-Wire SHA-256 secure authenticator with 2 Kbit user EEPROM in a 6-pin TDFN exposed-pad package.
Specifications were checked against the manufacturer data sheet; distributor stock and prices require live confirmation.
Overview
DS28EL22 uses a hardware SHA-256 engine and protected secret for bidirectional challenge-response authentication. Eight 256-bit user EEPROM pages and a factory-programmed 64-bit ROM ID support authenticated peripheral identity and application data.
Key Advantages
Bidirectional SHA-256 authentication checks both the peripheral and its host.
Protected 2 Kbit EEPROM holds application data in eight configurable pages.
Supplied in the documented tape-and-reel surface-mount package.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
1-Wire SHA-256 secure authenticator
1-Wire overdrive
1.8 V plus or minus 5%; -40 to +85 C
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
| Function | Bidirectional secure authenticator |
|---|---|
| Hash engine | Hardware SHA-256 |
| User memory | 2 Kbit EEPROM; eight 256-bit pages |
| Identity | Factory-programmed unique 64-bit ROM ID |
| Communication | Single-contact 1-Wire; up to 76.9 kbps |
| Supply | 1.8 V plus or minus 5% |
| Standby current | 5 microampere typical |
| Operating temperature | -40 to +85 C |
| Package | 6-pin 3 x 3 mm TDFN with exposed pad |
| Ordering media | 2,500-piece tape and reel |
Replacement Considerations
DS28EL22Q+U is a verified catalog entry. DS28EL22Q+U is the same core device in a different ordering format; confirm ADI shipping details.
Similarity of family name or package does not establish drop-in compatibility.
Manufacturer Information
Analog Devices DS28EL22 Rev. 2 abridged data sheet includes the 6-TDFN pin table and Q+T ordering code. Consult the controlled full security guide for provisioning.
Applications
Checks replaceable supplies against a host challenge.
Stores protected identity and calibration-related data.
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?
6-WDFN Exposed Pad
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.
DS28EL22Q+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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Inventory:913
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In Stock:913
| Qty. | Unit Price | Ext. Price |
| 1+ | $3.50 | $3.50 |
| 10+ | $3.26 | $32.60 |
| 25+ | $3.16 | $79.00 |
| 50+ | $3.09 | $154.50 |
| 100+ | $3.02 | $302.00 |
| 250+ | $2.92 | $730.00 |
| 500+ | $2.85 | $1425.00 |
| 1000+ | $2.78 | $2780.00 |
| 2500+ | $2.15 | $5375.00 |
