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DS2483
Single-Channel 1-Wire Master with Adjustable Timing and Sleep Mode
Best-in-Class Integrated 1-Wire Line Driver Facilitates Protocol Conversion Between I²C Host and 1-Wire Slave Network
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Status
Active: In Production.
Description
The DS2483 is an I²C-to-1-Wire® bridge device that interfaces directly to standard (100kHz max) or fast (400kHz max) I²C masters to perform protocol conversion between the I²C master and any downstream 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2483 is a 1-Wire master. 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 dual-voltage operation allows different operating voltages on the I²C and 1-Wire side. Strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs and sensors. In addition, the 1-Wire bus can be powered down under software control. When not in use, the DS2483 can be put in sleep mode where power consumption is minimal.
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Data Sheet
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Key Features
- I²C Host Interface Supports 100kHz and 400kHz I²C Communication Speeds
- Standard and Overdrive 1-Wire Communication Speeds
- Adjustable 1-Wire Timing for tRSTL, tMSP, tW0L, and tREC0
- 1-Wire Port Can Be Powered Down Under Software Control
- Supports Power-Saving Sleep Mode (SLPZ Pin), Where the 1-Wire Port is in High Impedance
- I²C Operating Voltages: 1.8V ±5%, 3.3V ±10%, and 5.0V +5/-10%
- Built-In Level Translator: 1-Wire Operating Voltage from 1.8V -5% to 5.0V +5%, Independent of I2C
Voltage
- Built-In ESD Protection Level of ±8kV Human Body Model (HBM) Contact Discharge on IO Pin
- -40°C to +85°C Operating Temperature Range
- 8-Pin TDFN and 6-Pin SOT23 Packages
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Applications/Uses
- Cell Phones
- Industrial Sensors
- Medical Instruments
- Printers
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Key Specifications:
| 1-Wire Interface Products |
| Part Number |
Functions |
VSUPPLY
(V) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS2483 NEW! |
1-Wire Bridge |
1.71 to 5.25 |
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6.3 |
$0.53 @1k |
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See All 1-Wire Interface Products (6)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Application Circuit
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Information Index
Document Ref.: 19-6164
Rev 1;
2012-01-13
This page last modified: 2012-01-13
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