DS9490R Maxim Integrated Products, DS9490R Datasheet
DS9490R
Specifications of DS9490R
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DS9490R Summary of contents
Page 1
... The DS9490R is a USB bridge with 1-Wire RJ11 interface to accommodate 1-Wire receptacles and networks. The DS1402D-DR8 (Blue Dot™) can readily be used in conjunction with the DS9490R to create an iButton PC reader. Both adapters are based on the DS2490 USB to 1-Wire bridge chip. ...
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... Figure 1. DS9490R Figure 2. DS9490B *Note: To eject an iButton, insert a straightened paper clip into the side access hole of the DS9490B. Push the paper clip in the direction of the iButton. A different iButton can then be inserted. The data contact faces down and away from the embossed ‘i’. Before inserting the paper clip disconnect the DS9490B from the USB bus ...
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... PIN CONFIGURATION Figure 4. 1-Wire RJ11 SOCKET FOR DS9490R SIGNAL PIN DESCRIPTION NAME 1 V 5VDC Output DD 2 GND Power Ground OW 1-Wire Data 3 GND_OW 1-Wire Return 4 SUSO USB Suspend Output 5 6 N.C. No Connection Figure 5. iButton SOCKET FOR DS9490B SIGNAL PIN DESCRIPTION NAME OW 1-Wire Data ...
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... MECHANICAL DIMENSIONS All dimensions are in millimeters. Figure 6. DS9490R 3.12 Figure 7. DS9490B 24.94 16.54 ENVIRONMENTAL REQUIREMENTS CONDITION Storage Temperature Storage Relative humidity, noncondensing Storage Duration Operating Temperature Operating Relative humidity, noncondensing 11.66 42.65 13.89 56.82 PARAMETER 20.42 21.54 11.66 8.74 3.28 VALUE -10° ...
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... See the DS2490 data sheet for the conditions where SUSO is active. Revision C of the DS9490R and all revisions of the DS9490R# have SUSO routed to the RJ11 connector. The availability of SUSO at the RJ11 connector is not production tested. Therefore, before relying on SUSO in an application, first verify the presence of this signal with the particular adapter ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc DS9490 PAGES CHANGED 1 . ...