The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs.
The MSP430x11x1 series is an ultralow-power mixed signal microcontroller with a built-in 16-bit timer, versatile analog comparator and fourteen I/O pins.
Typical applications include sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system. Stand alone RF sensor front end is another area of application. The I/O port inputs provide single slope A/D conversion capability on resistive sensors.
Low Supply Voltage Range 1.8 V – 3.6 V
Active Mode: 160 µA at 1 MHz, 2.2 V
Standby Mode: 0.7 µA
Off Mode (RAM Retention): 0.1 µA
Wake-Up From Standby Mode in less than 6 µs
16-Bit RISC Architecture, 125 ns Instruction Cycle Time
Basic Clock Module Configurations:
Various Internal Resistors
Single External Resistor
External Clock Source
16-Bit Timer_A With Three Capture/Compare Registers
On-Chip Comparator for Analog Signal Compare Function or Slope A/D Conversion
Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse