19-4879; Rev 8/09 DS9105 iButton Number Set www.maxim-ic.com FEATURES EXAMPLES OF ACCESSORIES DS1982-based iButtons branded with their respective character for optimum legibility 128 bytes of user-programmable EPROM in each iButton for maximum flexibility Available as set of 12 (as shown in the graphic) or as individual iButtons DS9096P DS9092GT DS9097U DS9106 DS9093RA DS9093RB Self-Stick Adhesive Pad iButton Wand COM-Port Adapter iButton Halos iButton Lock Ring iButton Flange Enlargement ORDERING INFORMATION PART TYPE DS9105-SET# DS9105-000# DS9105-001# DS9105-002# DS9105-003# DS9105-004# DS9105-005# DS9105-006# DS9105-007# DS9105-008# DS9105-009# DS9105-00C# DS9105-00E# COMPLETE SET OF 12 NUMBER ZERO NUMBER ONE NUMBER TWO NUMBER THREE NUMBER FOUR NUMBER FIVE NUMBER SIX NUMBER SEVEN NUMBER EIGHT NUMBER NINE CLEAR ENTER #Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements. DESCRIPTION Unlike conventional keypads, where data is entered by pressing a mechanical key, the solid buttons of an iButton keypad allow users to enter data by simply touching each button with an iButton probe or handheld computer. Each of these buttons comes from the factory with blank memory, allowing the user to program each button with whatever data the user would like entered when touched. The iButton keypad is a simple, robust alternative for data entry in harsh environments such as outdoors, industrial workplaces and other locations, where a normal keypad is impractical to operate. Since iButtons are made from stainless steel, this keypad is easily cleaned with hot water and detergent. The individual iButtons that comprise the keypad can be arranged as desired to maximize ease of use. They can be stuck on a smooth surface using adhesive pads or mounted through 16.5mm holes in a rigid material and fastened by lock rings. The material thickness should not exceed 3.0mm. For a detailed description of the communication protocol and the electrical characteristics of the iButton used in this keypad, refer to the DS1982 data sheet. iButton is a registered trademark of Maxim Integrated Products, Inc. 1 of 2 DS9105 REVISION HISTORY REVISION DESCRIPTION DATE 8/09 Added RoHS-compliance indicators to the Ordering Information table. PAGES CHANGED 1 2 of 2 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.