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MSP430G2x31 MSP430G2x21
www.ti.com SLAS694C – FEBRUARY 2010 – REVISED JULY 2010

MIXED SIGNAL MICROCONTROLLER
1

FEATURES
Low Supply-Voltage Range: 1.8 V to 3.6 V Ultralow Power Consumption – Active Mode: 220 µA at 1 MHz, 2.2 V – Standby Mode: 0.5 µA – Off Mode (RAM Retention): 0.1 µA Five Power-Saving Modes Ultrafast 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 One Calibrated Frequency – Internal Very Low Power Low-Frequency (LF) Oscillator – 32-kHz Crystal – External Digital Clock Source • • • • 16-Bit Timer_A With Two Capture/Compare Registers Universal Serial Interface (USI) Supporting SPI and I2C (See Table 1) Brownout Detector 10-Bit 200-kspsA/D Converter With Internal Reference, Sample-and-Hold, and Autoscan (See Table 1) Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse On-Chip Emulation Logic With Spy-Bi-Wire Interface Family Members Details See Table 1 Available in 14-Pin Plastic Small-Outline Thin Package (TSSOP), 14-Pin Plastic Dual Inline Package (PDIP), and 16-PinQFN For Complete Module Descriptions, See the MSP430x2xx Family User’s Guide (SLAU144)

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DESCRIPTION
The Texas Instruments MSP430 family of ultralow-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 achieveextended 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 MSP430G2x21/31 series is an ultralow-power mixed signal microcontroller with a built-in 16-bittimer and ten I/O pins. The MSP430G2x31 family members have a 10-bit A/D converter and built-in communication capability using synchronous protocols (SPI or I2C). 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.

1Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Productionprocessing does not necessarily include testing of all parameters.

Copyright © 2010, Texas Instruments Incorporated

MSP430G2x31 MSP430G2x21
SLAS694C – FEBRUARY 2010 – REVISED JULY 2010 www.ti.com

Table 1. Available Options (1)
Device MSP430G2231IRSA16 MSP430G2231IPW14 MSP430G2231IN14 MSP430G2221IRSA16 MSP430G2221IPW14 MSP430G2221IN14 MSP430G2131IRSA16 MSP430G2131IPW14 MSP430G2131IN14MSP430G2121IRSA16 MSP430G2121IPW14 MSP430G2121IN14 (1) (2) BSL EEM 1 Flash (KB) 2 RAM (B) 128 Timer_A 1x TA2 USI 1 ADC10 Channel 8 Clock LF, DCO, VLO I/O 10 Package Type (2) 16-QFN 14-TSSOP 14-PDIP 16-QFN 14-TSSOP 14-PDIP 16-QFN 14-TSSOP 14-PDIP 16-QFN 14-TSSOP 14-PDIP

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1

2

128

1x TA2

1

-

LF, DCO, VLO

10

-

1

1

128

1x TA2

1

8

LF, DCO, VLO

10

-1

1

128

1x TA2

1

-

LF, DCO, VLO

10

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

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