The Maxim Integrated DS28EL22Q+T is a DeepCover® authentication chip — a dedicated security IC designed to validate the identity of peripherals, accessories, or consumables in a system. It handles cryptographic challenge-response handshakes without loading the host microcontroller, making it a drop-in block for anti-cloning and tamper-detection circuits. The 6-TDFN package (3x3 mm) with exposed pad keeps the board footprint small, and the pad helps pull heat out if the part is running continuous authentication cycles.
DS28EL22Q+T Authentication Chip, DeepCover, 6-TDFN, Active
MPNDS28EL22Q+T
End of Life
Maxim Integrated DeepCover® series, DS28EL22Q+T Authentication Chip, 6-WDFN Exposed Pad package (6-TDFN 3x3 mm), Surface Mount, ROHS3 Compliant, Active.
$2.75Ref. price · indicative, final on quote
Packaging6-WDFN Exposed Pad
RoHSROHS3 Compliant
SeriesDeepCover®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Authentication Chip |
| Series | DeepCover® |
| Mounting | Surface Mount |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | Authentication, Security |
| Case | 6-WDFN Exposed Pad |
Product details
Frequently asked questions
What is DS28EL22Q+T used for?
It is an authentication chip for verifying the identity of accessories, batteries, or consumables in a system, preventing unauthorized clones or tampering.
What is the difference between DS28EL22Q+T and DS28EL22?
The DS28EL22Q+T is the tape-and-reel packaged variant of the base DS28EL22 die. The electrical function and footprint are identical; the suffix indicates reel packaging for automated assembly.