Analog Devices Inc./Maxim Integrated DS28E01PMOD+

Overview

DS28E01PMOD+ from Maxim Integrated is a plug-in evaluation module designed to interface the DS28E01-100 1Kb protected 1-Wire EEPROM with SHA-1 authentication engine to the Avnet-made Xilinx Spartan-6 LX16 Evaluation Kit (AES-S6EV-LX16-G). It provides on-board RPUP for 3.3V 1-Wire communication, 0.1in-spaced TDFN breakout, and enables FPGA-based IFF copy protection via PicoBlaze SHA-1 challenge-response implementation.

For engineers reviewing the DS28E01PMOD+ datasheet, DS28E01PMOD+ pinout, DS28E01PMOD+ application, or DS28E01PMOD+ equivalent, this module supports secure FPGA identity verification, hardware-based cryptographic authentication integration, and rapid prototyping of 1-Wire–enabled security schemes on Spartan-6 platforms.

Technical Context

The DS28E01PMOD+ implements a physical-layer bridge between the DS28E01-100 TDFN package and the J8 connector's upper row pins on the AES-S6EV-LX16-G board. It routes all 1-Wire signals-including VDD, GND, and DATA-with 3.3V-compatible pull-up, matching the electrical interface requirements of the Xilinx FPGA I/O bank used in XAPP780.

This module is strictly mechanical and passive: no active logic, voltage translation, or clock generation is integrated. Its function is limited to signal routing, level alignment, and physical adaptation-enabling direct use of the DS28E01-100's native 1-Wire protocol stack within the PicoBlaze-based SHA-1 authentication design.

Key Specifications

Availability

DS28E01PMOD+ is available at Aetrix Electronics and suitable for FPGA-based secure boot, hardware authentication, and intellectual property protection applications requiring stable component supply and traceable sourcing for production-grade evaluation.

Supply support for DS28E01PMOD+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and secure ICs for industrial, communications, and computing applications.

The DS28E01PMOD+ belongs to Maxim's secure authentication evaluation platform family, developed specifically to accelerate implementation of 1-Wire–based cryptographic identity verification in FPGA systems using Xilinx Spartan-6 devices.

FAQ

What is the primary purpose of the DS28E01PMOD+?

The DS28E01PMOD+ is a plug-in module that enables the DS28E01-100 secure EEPROM to interface directly with the Avnet Xilinx Spartan-6 LX16 Evaluation Kit (AES-S6EV-LX16-G). It supports FPGA-based IFF copy protection by providing correct 3.3V 1-Wire signal routing and physical TDFN breakout-essential for running the PicoBlaze SHA-1 Authentication Design referenced in XAPP780. The DS28E01PMOD+ itself contains no active circuitry.

Which evaluation kit is required to use the DS28E01PMOD+?

The DS28E01PMOD+ is designed exclusively for use with the Avnet-made Xilinx Spartan-6 LX16 Evaluation Kit, part number AES-S6EV-LX16-G. It plugs into the upper row of pins on connector J8, component-side up. No other evaluation platform is supported per Maxim's documentation, and compatibility with other Spartan-6 or Artix-7 kits is not confirmed.

Does the DS28E01PMOD+ include any firmware or programmable logic?

No, the DS28E01PMOD+ is a passive hardware adapter only. It contains no microcontroller, FPGA fabric, or flash memory. All cryptographic functionality resides in the DS28E01-100 IC and the PicoBlaze soft-core implementation loaded onto the Spartan-6 FPGA. The DS28E01PMOD+ serves solely as a mechanical and electrical interface between those two elements.

What role does the DS28E01PMOD+ play in the XAPP780 reference design?

In XAPP780 ("FPGA IFF Copy Protection Using Dallas Semiconductor/Maxim DS2432 Secure EEPROMs"), the DS28E01PMOD+ replaces the DS2432-based implementation with the newer DS28E01-100, enabling SHA-1 authentication instead of CRC-based verification. The DS28E01PMOD+ ensures correct 1-Wire timing, voltage levels, and pin mapping required for the PicoBlaze SHA-1 core to communicate with the DS28E01-100 during challenge-response exchanges.

Is the DS28E01PMOD+ RoHS compliant and lead-free?

Yes, the DS28E01PMOD+ is explicitly marked with a "+" suffix indicating lead(Pb)-free and RoHS-compliant construction per Maxim's revision history and ordering information. This compliance applies to all solderable surfaces and substrate materials used in the DS28E01PMOD+ printed circuit board assembly.