MSP430G2x31
MSP430G2x21
www.ti.com
SLAS694C –FEBRUARY 2010–REVISED JULY 2010
MIXED SIGNAL MICROCONTROLLER
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FEATURES
• Low Supply-Voltage Range: 1.8 V to 3.6 V • 16-Bit Timer_A With Two Capture/Compare
Registers
• Ultralow Power Consumption
• Universal Serial Interface (USI) Supporting SPI
– Active Mode: 220 µA at 1 MHz, 2.2 V
and I2C (See Table 1)
– Standby Mode: 0.5 µA
• Brownout Detector
– Off Mode (RAM Retention): 0.1 µA
• 10-Bit 200-ksps A/D Converter With Internal
• Five Power-Saving Modes
Reference, Sample-and-Hold, and Autoscan
• Ultrafast Wake-Up From Standby Mode in Less
(See Table 1)
Than 1 µs
• Serial Onboard Programming,
• 16-Bit RISC Architecture, 62.5-ns Instruction
No External Programming Voltage Needed,
Cycle Time
Programmable Code Protection by Security
• Basic Clock Module Configurations
Fuse
– Internal Frequencies up to 16 MHz With
• On-Chip Emulation Logic With Spy-Bi-Wire
One Calibrated Frequency
Interface
– Internal Very Low Power Low-Frequency
• Family Members Details See Table 1
(LF) Oscillator
• Available in 14-Pin Plastic Small-Outline Thin
– 32-kHz Crystal
Package (TSSOP), 14-Pin Plastic Dual Inline
– External Digital Clock Source Package (PDIP), and 16-Pin QFN
• For Complete Module Descriptions, See the
MSP430x2xx Family User’s Guide (SLAU144)
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 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 MSP430G2x21/31 series is an ultralow-power mixed signal microcontroller with a built-in 16-bit timer 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.
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Please 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.
Copyright © 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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