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iButton® devices are small, durably packaged modules with globally unique digital addresses. An iButton device uses a stainless steel 'can' as an electronic communications interface. The iButton can has a data contact, called the 'lid', and a ground contact, called the 'base'. Each of the iButton contacts is connected to the silicon chip inside. The iButton base includes a flange to simplify attaching the iButton device to just about anything.  
 
Enhanced by our 1-Wire communications protocol, iButtons provide the ability to deliver or record data where other products cannot, such as in very harsh environments. An iButton device is ideal for any application where information needs to follow a person or object, such as temperature and humidity data logging, access control, asset tracking, and electronic cash (eCash) transactions.

Learn more about iButton Devices

Testimonials

Formula Student Germany: Keeping Electric Race Car Batteries Safe with iButton

June 18, 2021

See how iButton devices are helping Formula Student Germany competitors keep their electric formula race car batteries running safely.

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Featured Products

DS1964S DeepCover Secure Authenticator iButton with SHA-256

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DS28E17 1-Wire®-to-I2C Master Bridge

The DS28E17 is a 1-Wire slave to I2C master bridge device that interfaces directly to I2C slaves...

DS1402D-DR8 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS1402-BR8 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS1402-RP8 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS1402-RP3 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS1402-BP8 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS1402D-DB8 1-Wire Network Cables

The DS1402 series of 1-Wire network cables provides connectivity to any USB, serial, or parallel...

DS9098P iButton Retainer

The DS9098P iButton retainer is a low-cost, surface-mount device to secure an F5 iButton on a PC...

DS1411-S09 Serial Port iButton Holder

The DS1411 is a sophisticated RS-232-to-1-Wire® adapter and iButton holder that performs RS-232-...

DS9097U Universal 1-Wire COM Port Adapter

The DS9097U is a sophisticated RS-232 to 1-Wire® adapter, which performs RS-232 level conversion...

DS1411-009 Serial Port iButton Holder

The DS1411 is a sophisticated RS-232-to-1-Wire® adapter and iButton holder that performs RS-232-...

DS9490R USB to 1-Wire/iButton Adapter

The DS9490B is a USB bridge and holder for a single F5-size iButton®. The iButton is securely he...

DS9097U-E25 Universal 1-Wire COM Port Adapter

The DS9097U is a sophisticated RS-232 to 1-Wire® adapter, which performs RS-232 level conversion...

DS9097U-S09 Universal 1-Wire COM Port Adapter

The DS9097U is a sophisticated RS-232 to 1-Wire® adapter, which performs RS-232 level conversion...

DS9490B USB to 1-Wire/iButton Adapter

The DS9490B is a USB bridge and holder for a single F5-size iButton®. The iButton is securely he...

DS9097U-009 Universal 1-Wire COM Port Adapter

The DS9097U is a sophisticated RS-232 to 1-Wire® adapter, which performs RS-232 level conversion...
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