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參數資料
| 型號： | DS2482-100 |
| 英文描述： | Single-Channel 1-Wire Master |
| 中文描述： | 單通道1-Wire主控制器 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 261K |
| 代理商： | DS2482-100 |
1 of 22
REV: 061804
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
.
GENERAL 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.
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.
APPLICATIONS
Wireless Base Stations
Central Office Switches
PBXs
Rack-Based Servers
Medical Clinical Diagnostic Equipment
TYPICAL OPERATING CIRCUIT
To
optimize
1-Wire
(I2C port)
μC
DS2482 800
1-Wire lines
R
t
R
P
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
AD0
AD1
AD2
SDA
SCL
V
CC
1-Wire
Device #1
1-Wire
Device #2
FEATURES
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)
ORDERING INFORMATION
PART
TEMP RANGE
DS2482S-800
-40 to +85 C
DS2482S-800/T&R
-40 to +85 C
PIN CONFIGURATION
PIN-PACKAGE
16 SO (150 mil )
16 SO (150 mil )
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IO2
IO1
IO0
GND
IO4
IO5
IO6
IO7
IO3
SCL
SDA
VDD
NC
AD2
AD1
AD0
DS2482-800
Eight-Channel 1-Wire Master
www.maxim-ic.com
I
2
C is a trademark of Philips Corp. Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated
Companies, conveys a license under the Philips I
C system, provided that the system
conforms to the I
C Standard Specification as defined by Philips.
1-Wire is a registered trademark of Dallas Semiconductor.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2482S-100 | Single-Channel 1-Wire Master |
| DS2482S-800 | Eight-Channel 1-Wire Master |
| DS2502-E48 | 48-Bit Node Address Chip |
| DS26401 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| DS26401N | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS2482-100_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Channel 1-Wire Master |
| DS2482-101 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Channel 1-Wire Master with Sleep Mode |
| DS2482-101_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Channel 1-Wire Master with Sleep Mode |
| DS2482-800 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Channel 1-Wire Master |
| DS2482-800_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Channel 1-Wire Master |
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