Datasheet > DS2482S-800T

DS2482S-800T

更新时间： 2024-11-07 04:07:03

品牌	Logo	应用领域
达拉斯 - DALLAS		控制器
页数	文件大小	规格书
22页	261K
描述
Eight-Channel 1-Wire Master

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DS2482S-800T 数据手册

DS2482-800

Eight-Channel 1-Wire Master

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

ꢀ

Cꢀ I²C Host Interface, Supports 100kHz and 400kHz

I²C Communication Speeds

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.

Cꢀ 1-Wire Master I/O with Selectable Active or

Passive 1-Wire Pullup

Cꢀ Provides Reset/Presence, 8-Bit, Single-Bit, and

Three-Bit 1-Wire I/O Sequences

Cꢀ Eight Channels of Independently Operated

1-Wire I/O

Cꢀ Standard and Overdrive 1-Wire Communication

Speeds

Cꢀ Slew Controlled 1-Wire Edges

Cꢀ Selectable 1-Wire Slave Presence Pulse Falling

Edge Masking to Control Fast Edges on the

1-Wire Line

Cꢀ Supports Low-Impedance 1-Wire Strong Pullup

for EEPROMs, Temp Sensors, or Other 1-Wire

Slaves That Have Momentary High Current

Modes

Cꢀ Three Address Inputs for I²C Address

Assignment

Cꢀ Wide Operating Range: 2.9V to 5.5V, -40°C to

+85°C

Cꢀ 16-Pin SO Package (150 mil)

ORDERING INFORMATION

APPLICATIONS

PART

TEMP RANGE

-40 to +85LC

PIN-PACKAGE

16 SO (150 mil )

Cꢀ Wireless Base Stations

Cꢀ Central Office Switches

Cꢀ PBXs

DS2482S-800

DS2482S-800/T&R

Cꢀ Rack-Based Servers

Cꢀ Medical Clinical Diagnostic Equipment

PIN CONFIGURATION

IO3

SCL

SDA

VDD

IO2

IO1

IO0

GND

IO4

IO5

IO6

IO7

TYPICAL OPERATING CIRCUIT

V_CC

1-Wire

R_P

Device #1

1-Wire lines

R_t

SDA

SCL

IO0

IO1

IO2

IO3

IO4

IO5

IO6

IO7

(I²C port)

1-Wire

Device #2

µC

AD2

AD1

AD0

AD1

AD2

DS2482 800

I²C is a trademark of Philips Corp. Purchase of I²C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated

Companies, conveys a license under the Philips I²C Patent Rights to use these components in an I²C system, provided that the system

conforms to the I²C Standard Specification as defined by Philips.

1-Wire is a registered trademark of Dallas Semiconductor.

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DS2482S-800T相关器件

型号	品牌	获取价格	描述	数据表
DS2482X-100+T	MAXIM	获取价格	Single-Channel 1-Wire Master
DS2482X-101+T	MAXIM	获取价格	Single-Channel 1-Wire Master with Sleep Mode
DS2483	MAXIM	获取价格	Single-Channel 1-Wire Master with Adjustable Timing and Sleep Mode
DS2484	ADI	获取价格	时间可调并具有休眠模式的单通道1-Wire主机
DS2484Q+T	MAXIM	获取价格	Interface Circuit, PDSO8, 3 X 2 MM, ROHS COMPLIANT, TDFN-8
DS2484R+T	MAXIM	获取价格	Interface Circuit, PDSO6, ROHS COMPLIANT, SOT-23, 6 PIN
DS2485	ADI	获取价格	高级1-Wire?主机，带存储器
DS2488	ADI	获取价格	1-Wire双端口链路
DS2490	MAXIM	获取价格	USB to 1-Wire Bridge Chip
DS2490	DALLAS	获取价格	USB to 1-Wire Bridge Chip

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