1.1 Features 1
• Low Supply-Voltage Range: 1.8 V to 3.6 V
• Ultra-Low Power Consumption
– Active Mode: 230 μA at 1 MHz, 2.2 V
– Standby Mode: 0.5 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 Frequencies
– Internal Very-Low-Power Low-Frequency (LF)
Oscillator
– 32-kHz Crystal
– External Digital Clock Source
• Two 16-Bit Timer_A With Three Capture/Compare
Registers
• Up to 24 Capacitive-Touch Enabled I/O Pins
• Universal Serial Communication Interface (USCI)
– Enhanced UART Supports Automatic Baud-
Rate Detection (LIN)
– IrDA Encoder and Decoder
– Synchronous SPI
– I2C
• 10-Bit 200-ksps Analog-to-Digital Converter (ADC)
With Internal Reference, Sample-and-Hold, and
Autoscan (See Table 3-1)
• Brownout Detector
• Serial Onboard Programming,
No External Programming Voltage Needed,
Programmable Code Protection by Security Fuse
• On-Chip Emulation Logic With Spy-Bi-Wire
Interface
• Section 3 Summarizes Available Family Members
• Package Options
– TSSOP: 20 Pin, 28 Pin
– PDIP: 20 Pin
– QFN: 32 Pin
• For Complete Module Descriptions, See the
MSP430x2xx Family User’s Guide (SLAU144)

1.2 Applications
• Power Management
• Sensor Interface
• Capacitive Touch

1.3 Description
The TI MSP family of ultra-low-power microcontrollers consists of several devices that feature 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 the device to wake up from lowpower
modes to active mode in less than 1 μs.
The MSP430G2x03 and MSP430G2x33 devices are ultra-low-power mixed-signal microcontrollers with
built-in 16-bit timers, up to 24 I/O capacitive-touch enabled pins, and built-in communication capability
using the USCI. In addition, the MSP430G2x33 family members have a 10-bit ADC. See Section 3 for
configuration details.
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.