1FEATURES

• 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

• Five Power-Saving Modes

• 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 Frequency

– Internal Very-Low-Power Low-Frequency

(LF) Oscillator

– 32-kHz Crystal

– High-Frequency (HF) Crystal up to 16 MHz

– External Digital Clock Source

– External Resistor

• Two 16-Bit Timer_A With Three

Capture/Compare Registers

• One 16-Bit Timer_B With Three

Capture/Compare Registers

• Up to 32 Touch-Sense-Enabled I/O Pins

• Universal Serial Communication Interface

(USCI)

– Enhanced UART Supporting Auto Baudrate

Detection (LIN)

– IrDA Encoder and Decoder

– Synchronous SPI

– I2C™

• On-Chip Comparator for Analog Signal

Compare Function or Slope Analog-to-Digital

(A/D) Conversion

• 10-Bit 200-ksps Analog-to-Digital (A/D)

Converter With Internal Reference, Sample-

and-Hold, and Autoscan

• Brownout Detector

• Serial Onboard Programming,

No External Programming Voltage Needed,

Programmable Code Protection by Security

Fuse

• Bootstrap Loader

• On-Chip Emulation Logic

• Family Members are Summarized in Table 1

• Package Options

– TSSOP: 38 Pin (DA)

– QFN: 40 Pin (RHA)

• For Complete Module Descriptions, See the

MSP430x2xx Family User’s Guide (SLAU144)

DESCRIPTION

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists 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 MSP430G2x55 series are ultra-low-power mixed signal microcontrollers with built-in 16-bit timers, up to 32

I/O touch-sense-enabled pins, a versatile analog comparator, and built-in communication capability using the

universal serial communication interface. For configuration details, see Table 1.

Typical applications include low-cost 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.