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Data is written to an 8-byte scratchpad, verified, and then MAX4826 50mA/100mA Current-Limit Switches With NO-LOAD Flag In ♝FNThe MAX4826–MAX4831 family of switches has internal current limiting to prevent host devices from being damaged due to faulty load conditions.ĭS1972 1024-Bit EEPROM IButtonThe DS1972 is a 1024-bit, 1-Wire® EEPROM organized as four memory pages of 256 bits each in a rugged iButton® package. Data is transferred serially through the 1-Wire® MOTOROLA IBUTTON SOFTWARE SERIAL NUMBERAccess to the memory can be password protected with different passwords for read-only and full access.ĭS1990R Serial Number IButtonThe DS1990R Serial Number iButton® is a rugged data carrier that serves as an electronic registration number for automatic identification. The device features two fully differential wideband track-and-hold (T/H)ĭS1977 Password-Protected 32KB EEPROM IButtonThe DS1977 is a 32KB EEPROM in a rugged iButton® enclosure. MAX1192 Ultra-Low-Power, 22Msps, Dual 8-Bit ADCThe MAX1192 is an ultra-low-power, dual, 8-bit, 22Msps analog-to-digital converter (ADC). The DS9490R is a USB bridge with 1-Wire® RJ11 interface The iButton is securely held behind a latched door. Some Part number from the same manufacture Maxim Integrated ProductsĭS9105-00C# USB To 1-Wire/iButton AdapterThe DS9490B is a USB bridge and holder for a single F5-size iButton®. The end cap is removed by depressing the release tab with a paper clip, swinging it fully open, and sliding out the hinge. Once the iButton is inserted in the enclosure, snap the end cap over it. *Note: The data contact faces down and away from the embossed `i'. PIN 1 2 SIGNAL NAME OW GND_OW DESCRIPTION 1-Wire Data 1-Wire Return DESCRIPTION 5VDC Output Power Ground 1-Wire Data 1-Wire Return USB Suspend Output No Connection PIN SIGNAL NAME VDD GND OW GND_OW SUSO N.C. ![]() MOTOROLA IBUTTON SOFTWARE CODEMSB 8-BIT CRC CODE MSB LSB 12-BIT FIXED (000H) MSB 36-BIT SERIAL NUMBER LSB MSB LSB 8-BIT FAMILY CODE (81H) LSB MSB LSB The identification chip is a custom DS2401 that 64-bit ID number (see Figure 3). Each USB bridge contains a unique built-in identification chip. Before inserting the paper clip disconnect the DS9490B from the USB bus. The data contact faces down and away from the embossed `i'. A different iButton can then be inserted. Push the paper clip in the direction of the iButton. MOTOROLA IBUTTON SOFTWARE DRIVERSPC software drivers for Windows® 98, Windows 2000, Windows ME, and Windows XP® operating website under software support at systems can be found on the iButton *Note: To eject an iButton, insert a straightened paper clip into the side access hole of the DS9490B. Both adapters are based on the DS2490 USB to 1-Wire bridge chip. The DS1402D-DR8 (Blue DotTM) can readily be used in conjunction with the DS9490R to create an iButton PC reader. The is a USB bridge with 1-Wire RJ11 interface to accommodate 1-Wire receptacles and networks. The is a USB bridge and holder for a single F5-size iButton. Windows and Windows XP are registered trademarks of Microsoft Corp. Blue Dot is a trademark of Maxim Integrated Products, Inc. ![]() Development-Aid development of 1-Wire applications by providing a PC interface to verify device contents and state.ġ-Wire, iButton, and Thermochron are registered trademarks of Maxim Integrated Products, Inc. Demonstration-Demonstrate the features of iButtons or 1-Wire chips on personal computers. Monetary iButtons can be refilled with money. iButton Initialization and Download- Loggers like the Thermochron® can be missioned and downloaded. Software Authorization-Protection against software piracy by tying software operation to the presence of iButton hardware. #Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements. PART DESCRIPTION DS9490B# USB Single F5 iButton Holder with Protective Cap DS9490R# USB 1-Wire RJ11 Writes All Except EPROM 1-Wire/iButton Devices High-Speed 12Mbps Universal Serial Bus (USB) Interface Supports Standard and Overdrive 1-Wire® Communication Slew-Rate-Controlled 1-Wire Timing and Active Pullup for Improved 1-Wire Network Performance DS9490R has an RJ11 Interface for Standard Connectivity Accessories such as the DS1402D-DR8 DS9490B has an iButton® Interface and Retains a Fixed iButton Built-In Custom DS2401 Identification Chip Reads all 1-Wire and iButton Devices. ![]()
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