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Advanced 1-Wire® Master with Memory

Best-in-Class 1-Wire Master Performs Protocol Conversion Between the I2C Master and 1-Wire Slaves

产品详情

主要特征

应用/用途

Parametric specs for 1-Wire Interface Products
Functions 1-Wire Bridge
VSUPPLY (V) 2.2-3.63V
Package/Pins TDFN/6
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
0.94
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参量

Parametric specs for 1-Wire Interface Products
Functions 1-Wire Bridge
VSUPPLY (V) 2.2-3.63V
Package/Pins TDFN/6
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
0.94

主要特征

  • I2C Communication, up to 1MHz
  • 1-Wire Standard and Overdrive Timing Communication Speeds
  • 1-Wire Command Scripting Capability
  • Adjustable 1-Wire Timing for tRSTL, tMSI, tMSP, tRSTH, tW0L, tW1L, tMSR, tREC, RPUP, and PDSLEW
  • 0.75Kb of EEPROM for User Data
  • One Open-Drain GPIO Pin
  • Large 1-Wire Block Buffer (126 Bytes) for Efficient Data Transfer
  • Operating Range: 2.97V to 3.63V, -40°C to +85°C
  • 3mm x 3mm, 6-Pin TDFN-EP Package

应用/用途

  • Industrial Sensors and Tools
  • Limited-Use Consumables
  • Medical Instruments
  • Printer Cartridge Identification

描述

The DS2485 is a 1-Wire® master that performs protocol conversion between the I2C master and any attached 1-Wire slaves. For 1-Wire line driving, internal user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and overdrive 1-Wire communication speeds. The 1-Wire master has selectable active or passive 1-Wire pullup. Strong pullup features support 1-Wire power delivery for 1-Wire devices that require this for EEPROMs and cryptographic computations.

简化框图

DS2485: Typical Application Circuit DS2485: Typical Application Circuit Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心