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TIDM-1WIREEEPROM

Memory Emulation Using 1-Wire Communication Protocol Reference Design

Design files

TIDM-1WIREEEPROM

Design files

Overview

By applying low power modes and FRAM technology this reference design utilizes 1-wire device communication to emulate EEPROM functionality on an MSP430™ microcontroller (MCU).  This solution includes the ability to be powered parasitically from the communication line and allocates more memory space than is available than current 1-wire devices on the market.

Features
  • Complete 1-Wire protocol support assures an easy transition and effortless substitution for similar EEPROM devices
  • Uses LPMs to accomplish an average standby current consumption of 600 nA in standby mode
  • Design is achievable on any MSP430 FRAM MCU and allows for flexibility in the available EEPROM memory space
  • Includes selectable operation modes such as dedicated or parasitic power
  • Provided firmware may be nodified for use in other 1-wire applications
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDM-1WIREEEPROM
TIDUAL9A.PDF (1756 K)

Reference design overview and verified performance test data

download Schematic — TIDM-1WIREEEPROM
TIDRKJ3.PDF (28 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDM-1WIREEEPROM
TIDRKJ4.PDF (193 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIDM-1WIREEEPROM
TIDCBU6.ZIP (1552 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR5969 — 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* Application note Implementing 1-Wire Enumeration for TMP1826 With TM4C129x Microcontrollers (Rev. D) PDF | HTML Jul. 13, 2020
* Design guide Memory Emulation Using 1-Wire Communication Protocol Design Guide (Rev. A) Jul. 13, 2016
Application brief Single-Wire Communication Host With MSP430™ MCUs Sep. 15, 2017

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