DS2476BQ+U Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
The DS2476BQ+U is a DeepCover Secure Coprocessor from Analog Devices that provides hardware-based cryptographic authentication and key management. It features a 1-Wire interface, integrated secure memory, and AES-256 encryption for protecting IP and preventing counterfeit accessories. Available in a compact WLP package for space-constrained designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- DS2476BQ+U Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of DS2476BQ+U?
- AES-256 hardware encryption engine for strong cryptographic authentication
- 1-Wire single-contact interface minimizing PCB routing and connector cost
- Integrated secure EEPROM for tamper-resistant key and certificate storage
- DeepCover physical security layer protecting against invasive and non-invasive attacks
- Ultra-small WLP package enabling integration into compact IoT nodes and accessories
- Supports SHA-256 HMAC for challenge-response authentication sequences
What is DS2476BQ+U used for?
The DS2476BQ+U is targeted at accessory authentication, IoT node identity, and IP protection applications where hardware-rooted cryptographic trust is required. It is commonly deployed in medical consumables, rechargeable battery packs, and industrial sensor modules to prevent counterfeit replacements and ensure compatibility verification at 1-Wire interface speeds.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the DS2476BQ+U datasheet?
DS2476BQ+U Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for DS2476BQ+U?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does DS2476BQ+U use AES-256 to authenticate accessories without exposing secret keys?
DS2476BQ+U implements a challenge-response protocol using its AES-256 engine: the host generates a 128-bit random challenge, the coprocessor computes a MAC over the challenge and a stored secret key, and only the correct result passes authentication. The secret key never leaves the tamper-resistant secure memory, so cloning attacks are blocked even if the bus is monitored.
What interface does DS2476BQ+U use, and how does it simplify PCB integration in compact designs?
DS2476BQ+U communicates over a 1-Wire bus, requiring only a single data line plus ground between the host and the coprocessor. This reduces the connector pin count to 2 pins, lowers cable cost, and makes the device straightforward to integrate into thin accessories, battery packs, or sensor probes where PCB space is at a premium.
For medical consumable authentication, does DS2476BQ+U meet the tamper-resistance requirements typical of regulated devices?
DS2476BQ+U is built with Maxim's DeepCover security architecture, which includes physical tamper-detection layers and secure storage that zeroizes keys on attack detection. The device stores up to 512 bytes of user EEPROM and uses SHA-256 HMAC alongside AES-256 to meet the cryptographic depth expected in FDA-regulated medical consumables and Class II device accessories.
Which WLP package variant does DS2476BQ+U use, and how does that affect solder-assembly requirements?
DS2476BQ+U is supplied in a Wafer-Level Package (WLP) with a very small body footprint, typically under 2 mm x 2 mm, which requires fine-pitch solder paste and reflow at standard lead-free temperatures around 260°C peak. This package is suitable for automated SMT assembly and enables board-level integration alongside SoCs in space-constrained IoT modules.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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