Microchip has introduced the PIC12LF1840T48A, a single-chip, eXtreme low power, 8bit PIC microcontroller integrated with a sub-GHz RF transmitter. It is capable of operating in a choice of frequencies i.e. 418, 434, and 868MHz. The microcontroller is available in a single, 14pin TSSOP that makes it suitable for remote, keyless entry fobs for automobiles, garage doors and home security systems. It can also be used in home and building automation systems. The microcontroller is said to be optimised to run the company's Keeloq, advanced code-hopping technology. In addition to secure wireless communications, the microcontroller features a low operating voltage of 1.8V. The microcontroller has low sleep current consumption, and is integrated with the transmitter to enable fast wake-up and send functionality that takes advantage of the microcontroller's 8MIPS operation, claims the company.
