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Analog Devices Inc./Maxim Integrated DS28E16X+U
- Part No.:
- DS28E16X+U
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 6-XFBGA, WLBGA
- Description:
- 1-WIRE SHA3-256 COST EFFICIENT S
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
DS28E16X+U - 1-Wire SHA-3 Secure Authenticator
Analog Devices / Maxim Integrated DS28E16X+U is a 1-Wire secure authenticator with SHA-3 challenge/response, 256-bit secure user EEPROM, a 17-bit decrement-only counter and a unique 64-bit ROM ID. ADI lists this exact ordering code in WLCSP.
Technical details are based on the manufacturer's DS28E16 Rev. 2 data sheet and exact model listing; validate the package drawing before layout.
Overview
The DS28E16 combines a protected SHA-3 engine, securely stored secret, user EEPROM, decrement-only counter and factory-programmed identity. The parasitically powered 1-Wire interface supports authentication of attached accessories and replaceable equipment.
Key Advantages
SHA-3 challenge/response and keyed-hash capability.
256-bit secure user EEPROM with protected secret storage.
Authenticated-read 17-bit decrement-only counter.
1-Wire communication, parasitic power and unique 64-bit ROM ID.
Feature Summary
SHA-3 engine supports application-defined authentication protocols.
Unalterable factory-programmed ROM ID addresses each 1-Wire node.
Secure EEPROM and nonvolatile counter support protected data and tracking.
Six-ball wafer-level package with two IO and four ground connections.
Package & Footprint
ADI lists DS28E16X+U as WLCSP. LCDChip records the generic category 6-XFBGA, WLBGA; this describes a six-ball class but is not a controlled manufacturer footprint. Consult ADI's WLCSP package drawing for dimensions, pitch, land pattern and orientation before assembly.
- Confirm the manufacturer's six-ball outline and board land pattern.
- Connect both IO balls and all four GND balls as instructed.
- Review handling and assembly requirements for WLCSP.
The registered JPG is absent locally and returns HTTP 404 on the production site. Publication must wait until the image and package mapping are verified.
Pin Functions
ADI's Rev. 2 data sheet identifies the WLP ball functions:
1-Wire communication and parasitic-power path.
Ground references; connect all ground balls.
Use the manufacturer's top-view WLP drawing to verify ball orientation before layout.
Key Specifications
| Exact ordering code | DS28E16X+U |
|---|---|
| Manufacturer | Analog Devices / Maxim Integrated |
| Function | 1-Wire secure authenticator |
| Cryptographic algorithm | SHA-3, FIPS 202-aligned |
| Keyed-hash capability | HMAC, FIPS 198-aligned |
| Secure user EEPROM | 256 bits |
| Counter | 17-bit decrement-only, authenticated read |
| Unique ROM ID | 64 bits, factory programmed |
| Operating voltage range | 1.71 V to 3.63 V |
| Operating temperature | -40 °C to +85 °C |
| ESD protection | ±8 kV HBM, typical |
| Manufacturer package | Six-ball WLCSP |
| Catalog package | 6-XFBGA, WLBGA; footprint unverified |
Typical values are not guaranteed limits. Review the complete electrical and 1-Wire timing tables for host design.
Replacement Considerations
Other DS28E16 package variants are not automatic drop-in replacements. Compare package geometry, ball assignment, 1-Wire timing, voltage and temperature limits, secret provisioning, SHA-3 protocol, EEPROM and counter behavior. No internal substitute is linked without exact catalog verification.
Manufacturer Information
Analog Devices explicitly lists DS28E16X+U as a WLCSP model. The manufacturer's DS28E16 Rev. 2 data sheet defines the WLP ball functions, security architecture and electrical limits. Obtain the current package drawing and controlled compliance documentation for release.
Applications
Validate attached peripheral identity.
Support battery authentication and cycle-tracking designs.
Associate secure identity with compatible tools and consumables.
Protect accessory-specific data linked to the unique device identity.
Quality & Authenticity
Verify the exact X+U ordering code, manufacturer traceability and approved secret-provisioning workflow. Validate the WLCSP assembly and test application-specific challenge/response behavior. Protect host-side keys and review current manufacturer declarations.
FAQ
Is X+U the contact-style SFN device?
No. ADI lists X+U as WLCSP; the G+U code is SFN.
Which WLP balls carry IO?
A1 and B1 are IO. A2, A3, B2 and B3 are ground.
Can a generic six-ball footprint be used?
No. Use ADI's controlled WLCSP drawing for land pattern and orientation.
Engineering Notice
This summary does not replace controlled ADI documentation. The generic catalog package needs footprint reconciliation and its registered JPG is unavailable; hold layout and publication until both are verified.
DS28E16X+U Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Authentication Chip
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.25x0.98)
- Grade:
- -
- Qualification:
- -
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