The Texas Instruments MSP430 family of ultra-low-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 contribute to maximum code efficiency.The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 µs.
The MSP430x21x1 series is an ultra-low-power mixed signal microcontroller with a built-in 16-bit timer, versatile analog comparator, and sixteen I/O pins.
Typical applications include sensor systems that capture analog signals, convert themto 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 analog comparator provides slope A/D conversion capability.
Low Supply Voltage Range: 1.8 V to 3.6 V
Ultra-Low Power Consumption
Active Mode: 250 µA at 1 MHz, 2.2 V
Standby Mode: 0.7 µA
Off Mode (RAM Retention): 0.1 µA
Ultra-Fast Wake-Up From Standby Mode in Less Than 1 µs
16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time
Basic Clock Module Configurations
Internal Frequencies up to 16 MHz With Four Calibrated Frequencies to ±1%
High-Frequency Crystal up to 16 MHz
External Digital Clock Source
16-Bit Timer_A With Three Capture/Compare Registers
On-Chip Comparator for Analog Signal Compare Function or Slope Analog-to-Digital (A/D) Conversion
Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
On Chip Emulation Module
1KB + 256B Flash Memory
2KB + 256B Flash Memory
4KB + 256B Flash Memory
8KB + 256B Flash Memory
Available in a 20-Pin Plastic Small-Outline Wide Body (SOWB) Package, 20-Pin Plastic Small-Outline Thin (TSSOP) Package, 20-Pin TVSOP Package, and 24-Pin QFN Package