A newer version of this product is available

open-in-new Compare alternates
Similar functionality to the compared device
MSPM0L1303 ACTIVE 32-MHz Arm® Cortex®-M0+ MCU with 8-KB flash, 2-KB SRAM, 12-bit ADC, comparator, OPA Alternate available, lower cost, better features, and performance with MSPM0L1303
MSPM0L1306 ACTIVE 32-MHz Arm® Cortex®-M0+ MCU with 64-KB flash, 4-KB SRAM, 12-bit ADC, comparator, OPA 32-bit ARM Cortex-M0+ MCU for cost optimized designs

MSP430F1121A

ACTIVE

Product details

CPU MSP430 Frequency (MHz) 8 Flash memory (kByte) 4 RAM (kByte) 0.25 ADC type Slope Features Real-time clock UART 0 Number of ADC channels 0 SPI 0 USB No Hardware accelerators 0 Operating temperature range (°C) -40 to 85 Rating Catalog Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 4 Number of GPIOs 14 Number of I2Cs 0 Security Secure debug
CPU MSP430 Frequency (MHz) 8 Flash memory (kByte) 4 RAM (kByte) 0.25 ADC type Slope Features Real-time clock UART 0 Number of ADC channels 0 SPI 0 USB No Hardware accelerators 0 Operating temperature range (°C) -40 to 85 Rating Catalog Operating system BareMetal (No OS), TI RTOS Nonvolatile memory (kByte) 4 Number of GPIOs 14 Number of I2Cs 0 Security Secure debug
SOIC (DW) 20 131.84 mm² 12.8 x 10.3 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4 TVSOP (DGV) 20 32 mm² 5 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • Low Supply Voltage Range 1.8 V – 3.6 V
  • Ultralow-Power Consumption
    • Active Mode: 160 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Wake-Up From Standby Mode in less than 6 µs
  • 16-Bit RISC Architecture, 125 ns Instruction Cycle Time
  • Basic Clock Module Configurations:
    • Various Internal Resistors
    • Single External Resistor
    • 32-kHz Crystal
    • High-Frequency Crystal
    • Resonator
    • External Clock Source
  • 16-Bit Timer_A With Three Capture/Compare Registers
  • On-Chip Comparator for Analog Signal Compare Function or Slope A/D Conversion
  • Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
  • Family Members Include:
      MSP430C1101: 1KB ROM, 128B RAM
      MSP430C1111: 2KB ROM, 128B RAM
      MSP430C1121: 4KB ROM, 256B RAM
      MSP430F1101A: 1KB + 128B Flash Memory 128B RAM
      MSP430F1111A: 2KB + 256B Flash Memory 128B RAM
      MSP430F1121A: 4KB + 256B Flash Memory 256B RAM
  • Available in a 20-Pin Plastic Small-Outline Wide Body (SOWB) Package, 20-Pin Plastic Small-Outline Thin Package, and 20-Pin TVSOP (F11x1A only) and 24-Pin QFN
  • For Complete Module Descriptions, Refer to the MSP430x1xx Family User’s Guide, Literature Number SLAU049.

  • Low Supply Voltage Range 1.8 V – 3.6 V
  • Ultralow-Power Consumption
    • Active Mode: 160 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Wake-Up From Standby Mode in less than 6 µs
  • 16-Bit RISC Architecture, 125 ns Instruction Cycle Time
  • Basic Clock Module Configurations:
    • Various Internal Resistors
    • Single External Resistor
    • 32-kHz Crystal
    • High-Frequency Crystal
    • Resonator
    • External Clock Source
  • 16-Bit Timer_A With Three Capture/Compare Registers
  • On-Chip Comparator for Analog Signal Compare Function or Slope A/D Conversion
  • Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
  • Family Members Include:
      MSP430C1101: 1KB ROM, 128B RAM
      MSP430C1111: 2KB ROM, 128B RAM
      MSP430C1121: 4KB ROM, 256B RAM
      MSP430F1101A: 1KB + 128B Flash Memory 128B RAM
      MSP430F1111A: 2KB + 256B Flash Memory 128B RAM
      MSP430F1121A: 4KB + 256B Flash Memory 256B RAM
  • Available in a 20-Pin Plastic Small-Outline Wide Body (SOWB) Package, 20-Pin Plastic Small-Outline Thin Package, and 20-Pin TVSOP (F11x1A only) and 24-Pin QFN
  • For Complete Module Descriptions, Refer to the MSP430x1xx Family User’s Guide, Literature Number SLAU049.

The Texas Instruments MSP430 family of ultralow power microcontrollers consist 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 attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs.

The MSP430x11x1 series is an ultralow-power mixed signal microcontroller with a built-in 16-bit timer, versatile analog comparator and fourteen I/O pins.

Typical applications include 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. Stand alone RF sensor front end is another area of application. The I/O port inputs provide single slope A/D conversion capability on resistive sensors.

The Texas Instruments MSP430 family of ultralow power microcontrollers consist 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 attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs.

The MSP430x11x1 series is an ultralow-power mixed signal microcontroller with a built-in 16-bit timer, versatile analog comparator and fourteen I/O pins.

Typical applications include 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. Stand alone RF sensor front end is another area of application. The I/O port inputs provide single slope A/D conversion capability on resistive sensors.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 32
Top documentation Type Title Format options Date
* Data sheet MSP430x11x1, MSP430F11x1A Mixed Signal Microcontrollers datasheet (Rev. I) 11 Dec 2008
* Errata MSP430F1121A Microcontroller Errata (Rev. F) 17 Jun 2021
* User guide MSP430x1xx Family User's Guide (Rev. F) 06 Aug 2018
Application note Migration Guide From MSP430 MCUs to MSPM0 MCUs (Rev. B) PDF | HTML 02 Jun 2025
Application note Design Considerations When Using the MSP430 Graphics Library (Rev. A) PDF | HTML 09 Aug 2023
Application note Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. B) PDF | HTML 01 Apr 2022
Application brief Add Housekeeping Functions to Your MSP430™ MCU: Power Sequencer PDF | HTML 07 Sep 2021
Application note ESD Diode Current Specification (Rev. B) PDF | HTML 23 Aug 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML 13 May 2021
Application note MSP430 Embedded Application Binary Interface (Rev. A) PDF | HTML 02 Jun 2020
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019
Application note Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H) 15 Mar 2019
Application note Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A) PDF | HTML 03 Oct 2018
Application note MSP430 Flash Memory Characteristics (Rev. B) PDF | HTML 24 Aug 2018
Application note Understanding MSP430 Flash Data Retention (Rev. A) PDF | HTML 24 Aug 2018
Application note Mixing C and Assembler With MSP430™ MCUs (Rev. A) PDF | HTML 07 Aug 2018
Application note Using the TPS3619 With MSP430 Microcontrollers (Rev. B) PDF | HTML 06 Aug 2018
Application note MSP430 LFXT1 Oscillator Accuracy (Rev. A) 03 Aug 2018
Application note Efficient Multiplication and Division Using MSP430 MCUs (Rev. A) 18 Jul 2018
Application note CRC Implementation with MSP430 MCUs (Rev. A) 21 Jun 2018
Application note Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A) 22 May 2018
Application note Random Number Generation Using MSP430™ MCUs (Rev. A) 16 May 2018
Application note Wave Digital Filtering Using an MSP430 MCU (Rev. A) 16 May 2018
Application note Software Coding Techniques for MSP430™ MCUs (Rev. B) 14 Mar 2018
Application note MSP430 32-kHz Crystal Oscillators (Rev. D) PDF | HTML 18 Jul 2017
Application note Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) 06 Sep 2016
Application note MSP Code Protection Features PDF | HTML 07 Dec 2015
Application note Design Considerations When Using the MSP430 Graphics Library 05 Oct 2012
White paper Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) 28 Mar 2012
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 12 Jan 2012
Application note 1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B) 14 Jun 2010
Application note Tiny DCDC Converter Reference Design (Rev. A) 14 Jun 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ALGO-3P-UISP1-TI — Algocraft μISP1 Programmer for Texas Instruments devices

μISP can either work connected to a host PC (RS-232, USB, LAN connections are built-in) or in standalone mode.

The programming cycle execution in standalone mode may occur by simply pressing the START button or through some TTL control lines.

Its compact size and versatility allows a simple (...)

From: Algocraft
Development kit

MSP-TS430DW28 — MSP-TS430DW28 - 28-pin Target Development Board for MSP430F1x and MSP430F2x MCUs

The MSP-TS430DW28 is a standalone ZIF socket target board used to program and debug the MSP430 MCU in-system through the JTAG interface or the Spy Bi-Wire (2-wire JTAG) protocol.

Device Support: The MSP-TS430DW28 development board supports MSP430F11x1, MSP430F11x2, MSP430F12x, MSP430F12x2 and (...)

User guide: PDF | HTML
Not available on TI.com
Hardware programming tool

MSP-FET — MSP MCU Programmer and Debugger

The MSP-FET is a powerful emulation development tool – often called a debug probe – which allows users to quickly begin development on MSP low-power microcontrollers (MCU).

It supports programming and real-time debugging over both JTAG and SBW interfaces. Furthermore, the MSP-FET also provides a (...)

User guide: PDF | HTML
Not available on TI.com
Hardware programming tool

ALGO-3P-WRITENOW — Algocraft WriteNow! Programmer

WriteNow! Series of In-System Programmers is a breakthrough in the programming industry. The programmers support a large number of devices (microcontrollers, memories, CPLDs and other programmable devices) from various manufacturers and have a compact size for easy ATE/fixture integration. They (...)

From: Algocraft
Software development kit (SDK)

MSP430-SDK MSP430-SDK for MSP430 Microcontrollers

MSP430-SDK is a collection of resources that help users to write effective code for MSP430 microcontrollers (MCUs). These resources support ALL MSP430 microcontrollers. As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

This collection of (...)

Supported products & hardware

Supported products & hardware

Browse Download options
Code example or demo

SLAC011 MSP430x11x, MSP430F21x1 Code Examples

Supported products & hardware

Supported products & hardware

Code example or demo

SLAC013 MSP430F11x2, MSP430F12x, MSP430F12x2 Code Examples

Supported products & hardware

Supported products & hardware

Driver or library

MSP-DSPLIB Digital Signal Processing (DSP) Library for MSP Microcontrollers

The TI MSP430™ Digital Signal Processing library is a set of optimized functions to perform common signal processing operations for MSP430 microcontrollers. These functions are used in applications where processing-intensive transforms are done in real-time for minimal energy and with very (...)

Supported products & hardware

Supported products & hardware

Browse Download options
Driver or library

MSP-GRLIB MSP Graphics Library

The MSP Graphics Library is a royalty-free set of graphics primitives for displaying images or creating graphical user interfaces (GUIs) on MSP430 and MSP432 microcontroller-based boards that use a graphical display. The graphics library consists of two functional layers: 1) the display driver (...)

Supported products & hardware

Supported products & hardware

Browse Download options
Getting started

TI-DEVELOPER-ZONE Start embedded development on your desktop or in the cloud

From evaluation to deployment the TI Developer Zone provides a comprehensive range of software, tools and training to ensure that you have everything you need for each stage of the development process.
Supported products & hardware

Supported products & hardware

IDE, configuration, compiler or debugger

CCSTUDIO Code Composer Studio™ integrated development environment (IDE)

Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It is comprised of a rich suite of tools used to build, debug, analyze and optimize embedded applications. Code Composer Studio is available across Windows®, Linux® and macOS® platforms.

(...)

Supported products & hardware

Supported products & hardware

Launch Download options
IDE, configuration, compiler or debugger

ENERGYTRACE — EnergyTrace Technology

EnergyTrace™ software for MSP430™ MCUs, MSP432™ MCUs, CC13xx wireless MCUs and CC26xx wireless MCUs is an energy-based code analysis tool that measures and displays the energy profile of an application and helps optimize it for ultra-low-power consumption.

As most developers know, it is difficult (...)

IDE, configuration, compiler or debugger

IAR-KICKSTART — IAR Embedded Workbench

IAR Embedded Workbench delivers a complete development toolchain for building and debugging embedded applications for your selected target microcontroller. The included IAR C/C++ Compiler generates highly optimized code for your application, and the C-SPY Debugger is a fully integrated debugger for (...)
From: IAR Systems
Online training

MSP430-ACADEMY MSP430™ academy

MSP430™ academy delivers easy-to-use training modules that span a wide range of topics and LaunchPads in the MSP430 MCU portfolio.
Supported products & hardware

Supported products & hardware

Operating system (OS)

WHIS-3P-SAFERTOS — WITTENSTEIN SAFERTOS Pre-certified safety RTOS

SAFERTOS® is a unique real time operating system designed for embedded processors. It is precertified to IEC 61508 SIL3 and ISO 26262 ASILD standards by TÜV SÜD. SAFERTOS® was crafted specifically for safety by WHIS' team of experts and is used globally in safety critical applications. WHIS and (...)
Software programming tool

MSP-GANG-SOFTWARE MSP-GANG Software

The MSP Gang Programmer (MSP-GANG) is a MSPM0/MSP430/MSP432 device programmer that can program up to eight identical devices at the same time.
Supported products & hardware

Supported products & hardware

Download options
Software programming tool

MSP430-FLASHER Command Line Programmer for MSP430™ and SimpleLink™ MSP432™ MCUs

MSPFlasher is an open-source, shell-based (command line) interface for programming MSP430™ and MSP432™ microcontrollers (MCUs) through JTAG and provides the most common programming functions. MSP Flasher can be used to download binary files directly to memory without the need of an IDE (...)

Supported products & hardware

Supported products & hardware

Download options
Software programming tool

UNIFLASH UniFlash for most TI microcontrollers (MCUs) and mmWave sensors

UniFlash is a software tool for programming on-chip flash on TI microcontrollers and wireless connectivity devices and on-board flash for TI processors. UniFlash provides both graphical and command-line interfaces.

UniFlash can be run from the cloud on the TI Developer Zone or downloaded and used (...)

Supported products & hardware

Supported products & hardware

Launch Download options
Design tool

MSP-3P-SEARCH — MSP Third party search tool

TI has partnered with multiple companies to offer a wide range of solutions and services for TI MSP devices. These companies can accelerate your path to production using MSP devices. Download this search tool to quickly browse third-party details and find the right third-party to meet your needs.

(...)

Package Pins CAD symbols, footprints & 3D models
SOIC (DW) 20 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian
TVSOP (DGV) 20 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos