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DS2490

Features: ` Communicates at regular and overdrive 1-Wire® speeds` Supports 12V EPROM programming and stiff 5V pullup for EEPROM, sensors, and crypto iButton®` Slew rate controlled 1-Wire timing and active pullup to accommodate long 1-Wire network lines and reduce radiation` Programmable 1-...

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SeekIC No. : 004328869 Detail

DS2490: Features: ` Communicates at regular and overdrive 1-Wire® speeds` Supports 12V EPROM programming and stiff 5V pullup for EEPROM, sensors, and crypto iButton®` Slew rate controlled 1-Wire tim...

DS2490 Data Sheet

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Part Number:
DS2490
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Communicates at regular and overdrive 1-Wire® speeds
` Supports 12V EPROM programming and stiff 5V pullup for EEPROM, sensors, and crypto iButton®
` Slew rate controlled 1-Wire timing and active pullup to accommodate long 1-Wire network lines and reduce radiation
` Programmable 1-Wire timing and driver characteristics accommodate a wide range of 1-Wire network configurations
` Low- to high-level command types, including macros, for generating 1-Wire communication
` Crystal oscillator timebase provides precision timed 1-Wire waveforms
` High-speed 12Mbps Universal Serial Bus (USB) interface
` Integrated USB-compliant transceiver
` Supports USB remote wake-up from a 1-Wire device event to resume a suspended host system
` 0 to +70 operating temperature range


Pinout

Connection Diagram


Specifications

Voltage on Any Pin Relative to Ground....... -0.5V to +6.0V
Operating Temperature Range ............0 to +70
Storage Temperature Range ...........-55 to +125
Soldering Temperature  .......See J-STD-020A Specification
• This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.


Description

The DS2490 is a bridge chip that enables communication between a USB host system and a 1-Wire bus.It provides regular, overdrive, and flexible 1-Wire communication speeds and a full-speed 12Mbps connection to USB. USB vendor-specific commands defined in this specification are used to control the DS2490 and communicate with attached 1-Wire devices. A functional block diagram of the DS2490 is shown in Figure 1.




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