MSP430F1121 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
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Same functionality and pinout but is not an equivalent to the compared device:
MSP430F112 ACTIVE 8 MHz MCU with 4KB FLASH, 256B SRAM, Timer This product is a microcontroller with the same memory, peripheral, and pin-out configuration while incorporating performance improvements.
MSP430F1121A ACTIVE 8 MHz MCU with 4KB FLASH, 256B SRAM, Timer, Comparator This product is a microcontroller with the same memory, peripheral, and pin-out configuration while incorporating performance improvements.
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Product details

Parameters

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Features

  • 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.

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Description

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.

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Technical documentation

= Featured
No results found. Please clear your search and try again. View all 29
Type Title Date
* Datasheet MSP430x11x1, MSP430F11x1A Mixed Signal Microcontrollers datasheet (Rev. I) Dec. 11, 2008
* User guides MSP430x1xx Family User's Guide (Rev. F) Aug. 06, 2018
Application notes MSP430 System ESD Troubleshooting Guide Dec. 13, 2019
Application notes ESD Diode Current Specification (Rev. A) Jul. 10, 2019
Application notes Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H) Mar. 15, 2019
Application notes Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A) Oct. 03, 2018
Application notes MSP430 Flash Memory Characteristics (Rev. B) Aug. 24, 2018
Application notes Understanding MSP430 Flash Data Retention (Rev. A) Aug. 24, 2018
Application notes Mixing C and Assembler With MSP430™ MCUs (Rev. A) Aug. 07, 2018
Application notes Using the TPS3619 With MSP430 Microcontrollers (Rev. B) Aug. 06, 2018
Application notes MSP430 LFXT1 Oscillator Accuracy (Rev. A) Aug. 03, 2018
Application notes Efficient Multiplication and Division Using MSP430 MCUs (Rev. A) Jul. 18, 2018
Application notes CRC Implementation with MSP430 MCUs (Rev. A) Jun. 21, 2018
Application notes Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A) May 22, 2018
Application notes Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. A) May 18, 2018
Application notes Random Number Generation Using MSP430™ MCUs (Rev. A) May 16, 2018
Application notes Wave Digital Filtering Using an MSP430 MCU (Rev. A) May 16, 2018
Application notes Software Coding Techniques for MSP430™ MCUs (Rev. B) Mar. 14, 2018
Application notes MSP430 32-kHz Crystal Oscillators (Rev. D) Jul. 18, 2017
Application notes Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) Sep. 06, 2016
Technical articles Don’t miss out on the top training videos of 2015 Dec. 16, 2015
Application notes MSP Code Protection Features Dec. 07, 2015
Technical articles How fast is your 32-bit MCU? Jul. 15, 2015
Technical articles Lose power, not data with new FRAM microcontrollers May 20, 2015
Technical articles Easily increase functionality in motor drive applications May 19, 2015
Application notes MSP430 Embedded Application Binary Interface May 16, 2012
Application notes Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) Jan. 12, 2012
Application notes 1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B) Jun. 14, 2010
Application notes Tiny DCDC Converter Reference Design (Rev. A) Jun. 14, 2010

Design & development

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

Hardware development

DEVELOPMENT KITS Download
document-generic User guide
$89.00
Description

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 (...)

Features
  • Development board (MSP-TS430DW28) with a ZIF socket fitting some MSP430 derivatives in 28-pin SOIC (DW) packages includes an LED indicator, JTAG adapter, and header pin-outs for prototyping
  • Supports all debugging interfaces using a standard 14-pin JTAG header such as the MSP-FET430UIF
DEVELOPMENT KITS Download
document-generic User guide
$89.00
Description

The MSP-TS430PW28 is a standalone ZIF socket target board used to program and debug the MSP430 in-system through the JTAG interface or the Spy Bi-Wire (2-wire JTAG) protocol. The development board supports some MSP430F Flash parts in a 28-pin TSSOP package (TI package code: PW). Please check your (...)

Features
  • Development board (MSP-TS430PW28) with a ZIF socket fitting some MSP430 derivatives in 28-pin TSSOP (PW) packages includes an LED indicator, JTAG adapter, and header pin-outs for prototyping
  • Supports all debugging interfaces using a standard 14-pin JTAG header such as the MSP-FET430UIF

Software development

SOFTWARE DEVELOPMENT KITS (SDK) Download
MSP430Ware for MSP Microcontrollers
MSPWARE MSP430Ware is a collection of resources that help users to effectively create and build MSP430 code. These resources support ALL MSP430 microcontrollers (MCUs). As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

This complete collection of (...)

Features
  • Collection of MSP design resources
  • Available within CCS, as a standalone executable, or as part of TI’s new Cloud-based tools
  • Auto-updates through the web
  • Sleek & intuitive GUI for browsing content
  • Features the MSP Driver Library
  • Automatic filtering of content using a unique 2-pane view
CODE EXAMPLES & DEMOS Download
SLAC011Q.ZIP (668 KB)
DRIVERS & LIBRARIES Download
Digital Signal Processing (DSP) Library for MSP430 Microcontrollers
MSP-DSPLIB — The Texas Instruments MSP430™ Digital Signal Processing library is a set of highly optimized functions to perform many common signal processing operations on fixed-point numbers for MSP430 microcontrollers. This function set is typically used in applications where processing-intensive (...)
DRIVERS & LIBRARIES Download
MSP Graphics Library
MSP-GRLIB The MSP Graphics Library is a royalty-free set of graphics primitives for creating graphical user interfaces on MSP430 and MSP432 microcontroller-based boards that have a graphical display. The graphical library consists of two building layers of functionality: the display driver layer, specific to (...)
Features
  • Free license and royalty-free use
  • Simplify and accelerate developmen tof applications
  • Easy-to-maintain code
DRIVERS & LIBRARIES Download
Fixed Point Math Library for MSP
MSP-IQMATHLIB The Texas Instruments® MSP IQmath and Qmath Libraries are a collection of highly optimized and high-precision mathematical functions for C programmers to seamlessly port a floating-point algorithm into fixed-point code on MSP430 and MSP432 devices. These routines are typically used in (...)
Features
  • Optimized fixed point functions - reduce development time and enable developers to focus on optimizing application code
  • Up to 100x higher performance when executing common fixed point scalar math functions in CCS – this means the MSP microcontroller can remain in low power modes longer than (...)
DRIVERS & LIBRARIES Download
Bootloader (BSL) for MSP low-power microcontrollers
MSPBSL Below are the steps needed in order to both understand and use the MSPBSL effectively across the MSP portfolio. For the most up to date information on what features the BSL on your device supports or which interface methods are needed to communicate with the BSL, please see “TABLE 1. Overview (...)
IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
Code Composer Studio™ Integrated Development Environment for MSP Microcontrollers
CCSTUDIO-MSP

Code Composer Studio is an integrated development environment (IDE) that supports TI's Microcontroller and Embedded Processors portfolio. Code Composer Studio comprises a suite of tools used to develop and debug embedded applications. It includes an optimizing C/C++ compiler, source code editor (...)

IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
EnergyTrace Technology
ENERGYTRACE 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 to (...)

Features
  • Current measurement is enabled for all MSP430 MCUs, MSP432 MCUs and connectivity devices
  • Tracing of CPU states is available on selected MSP430 MCUs, MSP432 MCUs, CC13x2 wireless MCUs and CC26x2 wireless MCUs 
  • Tracing of peripheral states is also available on selected MSP430 MCUs, CC13x2 (...)
IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
GCC - Open Source Compiler for MSP Microcontrollers
MSP430-GCC-OPENSOURCE MSP430™ and MSP432™ GCC open source packages are complete debugger and open source C/C++ compiler toolchains for building and debugging embedded applications based on MSP430 and MSP432 microcontrollers. These free GCC compilers support all MSP430 and MSP432 devices without code size limitations. In (...)
Features
  • Available standalone or integrated within Code Composer Studio™
  • No Code Size Limitation
  • Free and Open-source
IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
ULP (Ultra-Low Power) Advisor
ULPADVISOR ULP (Ultra-Low Power) Advisor is a tool for guiding developers to write more efficient code to fully utilize the unique ultra-low power features of MSP and MSP432 microcontrollers. Aimed at both experienced and new microcontroller developers, ULP Advisor checks your code against a thorough ULP (...)
Features
  • Seamless tool that provides easy-to-understand remarks for creating power-efficient code for all MSP devices
  • Checks your code against a thorough ULP checklist
  • Built in to Code Composer Studio and also available as a standalone executable
  • Supports all MSP devices
  • Wiki-based social online community for (...)
IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
IAR Embedded Workbench
Provided by IAR Systems IAR Embedded Workbench for MSP430 (EW430)
IAR Embedded Workbench for MSP430 is a complete debugger and C/C++ compiler toolchain for building and debugging embedded applications based on MSP430 microcontrollers. The Debugger is a fully integrated debugger for source and disassembly level debugging (...)
PROGRAMMING TOOLS Download
MSP MCU Programmer and Debugger
MSP-FET To get started developing:
Step 1: Buy the MSP-FET 
Step 2: Refer to the debuggers user’s guide and hardware user’s guide.
Step 3: Refer to debugging video

**The second generation of the MSP-FET is supported in the IDEs since Code Composer Studio™ v7.0, IAR EW430 v7.1 and IAR EWAR v8.10. For use (...)

$115.00
Features
  • USB debugging interface to connect any MSP430 MCU to a computer for real-time, in-system programming and debugging
  • Enables EnergyTrace™ technology for energy measurement and debugging on all MSP430 and MSP432 devices in the Code Composer Studio and IAR Embedded Workbench development environments
  • (...)
PROGRAMMING TOOLS Download
MSP-GANG Production Programmer
MSP-GANG The MSP Gang Programmer is a MSP430/MSP432 device programmer that can program up to eight identical MSP430/MSP432 Flash or FRAM devices at the same time. The MSP Gang Programmer connects to a host PC using a standard RS-232 or USB connection and provides flexible programming options that allow the (...)
Features
  • Quickly and reliably program Flash or FRAM-based MSP devices via RS-232 or USB interface
  • Several programming modes:
    • Interactive Mode – Programming while connected to PC using the MSP GANG Programmer GUI
    • Program from Image – An image can be stored, which contains configuration options and code (...)

CAD/CAE symbols

Package Pins Download
SOIC (DW) 20 View options
TSSOP (PW) 20 View options

Ordering & quality

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