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Status
Part Number	Status
DS2482-800	Active: In Production.
DS2482S-800	Active: In Production. But some versions of the family are No Longer Available. See Ordering Information.

Data Sheet

FULL DATA SHEET (PDF, 280kB) Download   E-Mail

Errata

Errata DS2482-800 2482-800A2.pdf

Description

The DS2482-800 is an I²C to 1-Wire® bridge device that interfaces directly to standard (100kHz max) or fast (400kHz max) I²C masters to perform bi-directional protocol conversion between the I²C master and any downstream 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2482-800 is a 1-Wire master. Internal factory-trimmed timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and Overdrive 1-Wire communication speeds. To optimize 1-Wire waveform generation, the DS2482-800 performs slew-rate control on rising and falling 1-Wire edges and has a programmable feature to mask the fast presence pulse edge that some 1-Wire slave devices can generate. Programmable strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs and sensors. The DS2482-800 combines these features with eight independent 1-Wire I/O channels. The I²C slave address assignment is controlled by three binary address inputs, resolving potential conflicts with other I²C slave devices in the system.

Key Features		Applications/Uses
I²C Host Interface, Supports 100kHz and 400kHz I²C Communication Speeds 1-Wire Master I/O with Selectable Active or Passive 1-Wire Pullup Provides Reset/Presence, 8-Bit, Single-Bit, and Three-Bit 1-Wire I/O Sequences Eight Channels of Independently Operated 1-Wire I/O Standard and Overdrive 1-Wire Communication Speeds Slew Controlled 1-Wire Edges Selectable 1-Wire Slave Presence Pulse Falling Edge Masking to Control Fast Edges on the 1-Wire Line Supports Low-Impedance 1-Wire Strong Pullup for EEPROMs, Temp Sensors, or Other 1-Wire Slaves That Have Momentary High Current Modes Three Address Inputs for I²C Address Assignment Wide Operating Range: 2.9V to 5.5V, -40°C to +85°C 16-Pin SO Package (150 mil)		Central Office Switches Medical Clinical Diagnostic Equipment PBXs Rack-Based Servers Wireless Base Stations

Diagram

Typical Operating Circuit

Application Notes

Application Note 126: 1-Wire® Communication Through Software - DS2482-800 Application Note 3438: Serial Digital Data Networks - DS2482S-800 Application Note 3684: How to Use the DS2482 I²C 1-Wire® Master - DS2482-800 Application Note 3829: Determining the Recovery Time for Multiple-Slave 1-Wire Networks - DS2482-800

Design Guides

1-Wire® Products (PDF)

Reliability Reports

Reliability Report: DS2482-800.pdf Request Reliability Report for: DS2482S-800

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-4 of 4

DS2482S-800	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2482S-800/T&R		N/A	No Longer Available	DS2482S-800+	SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2482S-800		N/A	No Longer Available	DS2482S-800+	SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2482S-800+			Active		SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2482S-800+T&R			Active		SOIC(N);16 pin;62 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2004-06-16

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Technical Documents

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

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