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I/O Controller Interface IC
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HerstellerAnaloge Geräte
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Herstellerteil #DS2482S-800+
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Auf Lager7310
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
Übersicht
Description
DS2482S-800+ is an 8-channel I2C-to-1-Wire master bridge. It lets a microcontroller access eight independent 1-Wire buses on a single chip, reducing MCU bit-banging and I/O needs.
Key points
- Eight separate 1-Wire buses with per-bus strong-pull-up for parasite-powered devices.
- I2C host interface with a command/register set to reset, search ROM, read/write data, and deliver power on the 1-Wire bus.
- Supports standard 1-Wire timing (and overdrive where applicable) and multi-device networks.
Why use it
- Scale 1-Wire networks: connect many DS18B20 sensors, iButtons, or 1-Wire memories across eight buses.
- Reduce MCU load and simplify wiring in multi-sensor or multi-device systems.
- Easy to multiplex many devices without complex software bit-banging.
Notes
- Refer to the DS2482S-800+ datasheet for exact command set, timing diagrams, voltage ranges, and package options.
Key points
- Eight separate 1-Wire buses with per-bus strong-pull-up for parasite-powered devices.
- I2C host interface with a command/register set to reset, search ROM, read/write data, and deliver power on the 1-Wire bus.
- Supports standard 1-Wire timing (and overdrive where applicable) and multi-device networks.
Why use it
- Scale 1-Wire networks: connect many DS18B20 sensors, iButtons, or 1-Wire memories across eight buses.
- Reduce MCU load and simplify wiring in multi-sensor or multi-device systems.
- Easy to multiplex many devices without complex software bit-banging.
Notes
- Refer to the DS2482S-800+ datasheet for exact command set, timing diagrams, voltage ranges, and package options.
Features
DS2482S-800+ is an 8-channel I2C-to-1-Wire master. Key features:
- Eight independent 1-Wire buses on one chip (channel-select via I2C).
- Built-in 1-Wire master: reset/presence detect, Read/Write time slots, and ROM commands (Skip/Match ROM).
- Hardware 1-Wire search for fast device enumeration on a chosen channel.
- Parasite-power support with per-channel strong pull-up control.
- I2C interface (control and data over I2C, typical 400 kHz fast-mode+).
- Wide supply range and operation in harsh environments (typical industrial temp range).
- Small package (8-pin) suitable for compact designs.
- Ideal for multi-bus 1-Wire networks (e.g., DS18B20/DS2438 devices) and sensor arrays.
- Eight independent 1-Wire buses on one chip (channel-select via I2C).
- Built-in 1-Wire master: reset/presence detect, Read/Write time slots, and ROM commands (Skip/Match ROM).
- Hardware 1-Wire search for fast device enumeration on a chosen channel.
- Parasite-power support with per-channel strong pull-up control.
- I2C interface (control and data over I2C, typical 400 kHz fast-mode+).
- Wide supply range and operation in harsh environments (typical industrial temp range).
- Small package (8-pin) suitable for compact designs.
- Ideal for multi-bus 1-Wire networks (e.g., DS18B20/DS2438 devices) and sensor arrays.
Pinout
- Pin count: 8 pins (VDD, GND, SDA, SCL, 1‑Wire DQ, RESET, A0, A1).
- Function: I2C-to-1-Wire master. It provides a single 1‑Wire bus controllable by an I2C host, handling 1‑Wire reset/presence, read/write operations, and strong pull-up for parasite-powered devices; A0/A1 set the I2C address.
- Function: I2C-to-1-Wire master. It provides a single 1‑Wire bus controllable by an I2C host, handling 1‑Wire reset/presence, read/write operations, and strong pull-up for parasite-powered devices; A0/A1 set the I2C address.
Manufacturer
- Manufacturer: Maxim Integrated Products, Inc. (now part of Analog Devices).
- What kind of company: A semiconductor company that designs and markets analog and mixed-signal integrated circuits; it is a fabless company (outsources manufacturing).
- What kind of company: A semiconductor company that designs and markets analog and mixed-signal integrated circuits; it is a fabless company (outsources manufacturing).
Application
- Eight independent 1-Wire buses managed via a single I2C master (DS2482S-800+).
- Temperature sensing across multiple points using DS18B20/DS18S20 in HVAC, data centers, refrigeration, and industrial equipment.
- Asset tracking and identification with iButtons on separate channels.
- Data logging and environmental monitoring with scalable 1-Wire networks.
- Simplified wiring and reduced MCU I/O in industrial automation and embedded systems.
- Temperature sensing across multiple points using DS18B20/DS18S20 in HVAC, data centers, refrigeration, and industrial equipment.
- Asset tracking and identification with iButtons on separate channels.
- Data logging and environmental monitoring with scalable 1-Wire networks.
- Simplified wiring and reduced MCU I/O in industrial automation and embedded systems.
Package
DS2482S-800+ comes in a 16-pin surface-mount package (SOIC-16), also available as TSSOP-16.
