Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Slide 15 Product List
1-Wire Communications Slide 13

Shown here are some examples of host side implementation for a 1-Wire network. The most simple implementation is using a spare open drain microcontroller port-pin with an external pull up to bit-bang the 1-Wire line. Option A shows two discrete implementations with a bidirectional port and a uni-directional read and write port. Analog Devices also offers a variety of bridge devices, like the DS2482-100, that converts I2C to 1-Wire as shown in option B, or integrating the 1-Wire Master into their ASIC or FPGA design as shown in option E. Option C or D shows a possible host side implementation for a system that uses one or more 1-Wire secure memories using the secure hash algorithm standard. The DS2460 is a SHA-1 co-processor that primarily offloads the SHA-1 computation from the Master.

PTM Published on: 2011-10-31