Integrated Circuits (ICs)

MSP430G2121IRSA16T

NRND

16 MHZ MCU WITH 1KB FLASH, 128B SRAM, SPI/I2C, TIMER

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Search across all available documentation for this part.

DocumentsMSP430 System ESD Troubleshooting Guide Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G)+34

Integrated Circuits (ICs)

MSP430G2121IRSA16T

NRND

Texas Instruments

16 MHZ MCU WITH 1KB FLASH, 128B SRAM, SPI/I2C, TIMER

Deep-Dive with AI

DocumentsMSP430 System ESD Troubleshooting Guide Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G)+34

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MSP430G2121IRSA16T

Connectivity	I2C, SPI
Core Processor	MSP430 CPU16
Core Size	16-Bit
Mounting Type	Surface Mount
Number of I/O	10
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	Internal
Package / Case	16-VQFN Exposed Pad
Program Memory Size	1 KB
Program Memory Type	FLASH
RAM Size	128 x 8
Speed	16 MHz
Supplier Device Package	16-QFN (4x4)
Voltage - Supply (Vcc/Vdd) [Max]	3.6 V
Voltage - Supply (Vcc/Vdd) [Min]	1.8 V

MSP430G2121 Series

16 MHz MCU with 1KB Flash, 128B SRAM, SPI/I2C, timer

Part	Core Size	Oscillator Type	Connectivity	Operating Temperature [Max]	Operating Temperature [Min]	Program Memory Size	Program Memory Type	Package / Case	Core Processor	Number of I/O	Supplier Device Package	RAM Size	Mounting Type	Speed	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Grade	Qualification	Package / Case [custom]	Package / Case [custom]	Package / Case [y]	Package / Case [x]
Texas Instruments MSP430G2121IRSA16T	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	16-VQFN Exposed Pad	MSP430 CPU16	10	16-QFN (4x4)	128 x 8	Surface Mount	16 MHz	1.8 V	3.6 V
Texas Instruments MSP430G2121IRSAQ1	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	16-VQFN Exposed Pad	MSP430 CPU16	10	16-QFN (4x4)	128 x 8	Surface Mount	16 MHz	1.8 V	3.6 V	Automotive	AEC-Q100
Texas Instruments MSP430G2121IRSA16R	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	16-VQFN Exposed Pad	MSP430 CPU16	10	16-QFN (4x4)	128 x 8	Surface Mount	16 MHz	1.8 V	3.6 V
Texas Instruments MSP430G2121IPW14	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	14-TSSOP	MSP430 CPU16	10	14-TSSOP	128 x 8	Surface Mount	16 MHz	1.8 V	3.6 V			0.173 "	4.4 mm
Texas Instruments MSP430G2121IPW14R	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	14-TSSOP	MSP430 CPU16	10	14-TSSOP	128 x 8	Surface Mount	16 MHz	1.8 V	3.6 V			0.173 "	4.4 mm
Texas Instruments MSP430G2121IN14	16-Bit	Internal	I2C SPI	85 °C	-40 °C	1 KB	FLASH	14-DIP	MSP430 CPU16	10		128 x 8	Through Hole	16 MHz	1.8 V	3.6 V					7.62 mm	0.3 "

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.59
		10	$ 1.43
		25	$ 1.35
		100	$ 1.15
	Digi-Reel®	1	$ 1.59
		10	$ 1.43
		25	$ 1.35
		100	$ 1.15
	Tape & Reel (TR)	250	$ 1.08
		500	$ 0.94
		1250	$ 0.78
		2500	$ 0.73
		6250	$ 0.70
		12500	$ 0.67
Texas Instruments	SMALL T&R	1	$ 1.32
		100	$ 1.01
		250	$ 0.75
		1000	$ 0.53

Description

General part information

MSP430G2121 Series

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 MSP430G2x21/G2x31 series is an ultra-low-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).

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.

Documents

Technical documentation and resources

MSP430G2121IRSA16T

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MSP430G2121IRSA16T

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Technical Specifications

MSP430G2121 Series

Pricing

Description

MSP430G2121 Series

Documents

MSP430 System ESD Troubleshooting Guide

Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G)

Interfacing MSP430™ MCUs With MMC or SD Flash Memory Cards (Rev. C)

Random Number Generation Using MSP430™ MCUs (Rev. A)

MSP430 Flash Memory Characteristics (Rev. B)

Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A)

Safety Manual for MSP430G2xx, F5xx, and FR57xx in IEC 60730 Safety Applications (Rev. A)

Mixing C and Assembler With MSP430™ MCUs (Rev. A)

Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F)

MSP430 32-kHz Crystal Oscillators (Rev. D)

Software Coding Techniques for MSP430™ MCUs (Rev. B)

Tiny DCDC Converter Reference Design (Rev. A)

Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A)

Wave Digital Filtering Using an MSP430 MCU (Rev. A)

Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D)

ESD Diode Current Specification (Rev. B)

QFN and SON PCB Attachment (Rev. C)

MSP430G2121 Microcontroller Errata (Rev. I)

MSP430 LFXT1 Oscillator Accuracy (Rev. A)

MSP430 MCUs Development Guide Book (Rev. A)

Debunking the Ultra-low Power Comparison: MSP430F2x MCUs vs. Microchip XLP Tech (Rev. A)

CRC Implementation with MSP430 MCUs (Rev. A)

Using the TPS3619 With MSP430 Microcontrollers (Rev. B)

Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C)

1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B)

Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. B)

Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H)

MSP430F2xx, MSP430G2xx Family User's Guide (Rev. K)

MSP430G2x21, MSP430G2x31 Mixed Signal Microcontroller datasheet (Rev. J)

Migration Guide From MSP430 MCUs to MSPM0 MCUs (Rev. A)

Efficient Multiplication and Division Using MSP430 MCUs (Rev. A)

Understanding MSP430 Flash Data Retention (Rev. A)

Using the Real-Time-Clock Library (Rev. A)

Design Considerations When Using the MSP430 Graphics Library

MSP Code Protection Features

Migrating from the MSP430F2xx,G2xx Family to the MSP430FR58xx/FR59xx/68xx/69xx (Rev. E)