Dallas Microcontroller Unlock
Anything They Make, We Can Unlock! Professional unlock and firmware extraction for Dallas Semiconductor's entire portfolio – from high‑speed 8051s and NVSRAM to 1‑Wire devices, iButtons, and RTCs.
Anything They Make, We Can Unlock! Professional unlock and firmware extraction for Dallas Semiconductor's entire portfolio – from high‑speed 8051s and NVSRAM to 1‑Wire devices, iButtons, and RTCs.
We support unlock and firmware extraction for the following Dallas Semiconductor product lines. If your exact part isn't listed, contact us – we're constantly researching new types.
It is impossible to list all part numbers we can unlock. If your chip is not listed, please contact us – we can research new types to fit your demand.
Dallas Semiconductor was founded in 1984 in Dallas, Texas. The company was created by a group of former Mostek engineers. Dallas Semiconductor became famous for innovative integrated circuits. It was acquired by Maxim Integrated Products in 2001. Later, Maxim merged into Analog Devices in 2021. The company's products are still manufactured under the DS prefix.
Dallas pioneered the one-wire communication interface. The 1-Wire bus requires only a single data line. It also supplies power through that same data line. Powering the bus devices over the same line unlocks very simple two-wire sensor installations. This innovation simplified sensor network wiring dramatically. Because the 1-Wire bus is so simple and open, reverse engineering of Dallas devices is approachable with a modest setup.
Dallas Semiconductor also invented the iButton device family. iButtons are computer chips packaged inside stainless steel cans. They are durable enough for harsh outdoor environments. Firmware extraction from an iButton requires a specialized touch-probe reader that contacts the steel can. The company developed the first nonvolatile SRAM technology. NVSRAM combines SRAM with an embedded lithium battery. It retains data without external power for years.
Dallas was a major supplier of real-time clock chips. The DS1287 became an industry-standard PC clock. Dallas high-speed 8051 microcontrollers executed instructions three times faster. Models like the DS80C320 were popular upgrades. Enthusiasts often hack together DS80C320-based upgrade boards to revive older equipment. The DS5000 used NV-RAM instead of ROM for program storage. Its memory could be reprogrammed easily in the field. Because the DS5000 could be reprogrammed in the field, protecting its boot memory against an attack became an important design consideration. The DS89C450 was a 64K flash microcontroller.
Dallas produced digital potentiometers for calibration circuits. Its temperature sensors, like the DS18B20, are still widely used. The DS18B20 measures temperature over a one-wire interface. Reading the DS18B20 effectively involves a memory dump of its nine-byte scratchpad over the 1-Wire bus. Dallas battery-monitoring chips track lithium battery charge. The company served the telecommunications market as well. To serve demanding telecom customers, Dallas had to crack strict timing and reliability requirements. Dallas components appeared in many household products. They were used in computers, appliances, and industrial gear. Overall, Dallas Semiconductor left a lasting engineering legacy. Its 1-Wire and iButton technologies remain in wide use today.
If you don't see your exact model in our list, we may still be able to help. Our research team continuously expands the supported device database.
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