Datasheet > DS2482-800

DS2482-800

更新时间： 2024-01-21 08:18:31

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
23页	441K
描述
Eight-Channel 1-Wire Master

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数据手册

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DS2482-800 数据手册

19-4932; 11/09

DS2482-800

Eight-Channel 1-Wire Master

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

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.

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

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)

ORDERING INFORMATION

PART

TEMP RANGE

-40 to +85C

PIN-PACKAGE

16 SO (150 mil )

DS2482S-800+

DS2482S-800+T&R

+Denotes a lead(Pb)-free/RoHS-compliant package.

T&R = Tape and reel.

APPLICATIONS

Wireless Base Stations

Central Office Switches

PBXs

Rack-Based Servers

Medical Clinical Diagnostic Equipment

PIN CONFIGURATION

IO3

SCL

SDA

V_CC

IO2

IO1

IO0

GND

IO4

IO5

IO6

IO7

TYPICAL OPERATING CIRCUIT

AD2

AD1

AD0

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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与DS2482-800相关器件

型号	品牌	获取价格	描述	数据表
DS2482-800_12	MAXIM	获取价格	8-Channel 1-Wire Master
DS2482-800_V01	MAXIM	获取价格	8-Channel 1-Wire Master
DS2482S-100	DALLAS	获取价格	Single-Channel 1-Wire Master
DS2482S-100/R	DALLAS	获取价格	Single-Channel 1-Wire Master
DS2482S-100/T	DALLAS	获取价格	Single-Channel 1-Wire Master
DS2482S-100/T&R	MAXIM	获取价格	Buffer/Inverter Based Peripheral Driver, PDSO8, 0.150 INCH, SOP-8
DS2482S-100/T&R	DALLAS	获取价格	Single-Channel 1-Wire Master
DS2482S-100+	MAXIM	获取价格	Single-Channel 1-Wire Master
DS2482S-100+TR	MAXIM	获取价格	Single-Channel 1-Wire Master
DS2482S-101+	MAXIM	获取价格	Single-Channel 1-Wire Master with Sleep Mode

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