Details, datasheet, quote on part number: MSP430F1121AIDGVR
CategorySemiconductors => Microcontrollers (MCU) => MSP430 ultra-low-power MCUs => MSP430F1x
Part familyMSP430F1121A 16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, Comparator
TitleUltra-Low Power Microcontrollers
Description16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, Comparator 20-TVSOP -40 to 85
CompanyTexas Instruments, Inc.
DatasheetDownload MSP430F1121AIDGVR datasheet
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Timers - 32-bit0
Timers - 16-bit1
Operating Temperature Range(C)-40 to 85
Non-volatile Memory (KB)4
Min VCC1.8
GPIO Pins(#)14
Max VCC3.6
Active Power (uA/MHz)160
Standby Power (LPM3-uA)0.7
Wakeup Time (us)6
Special I/ON/A
Approx. Price (US$)1.59 | 1ku
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
20DGVTVSOPR-PDSO-G2000LARGE T&R4F1121A 4.451.05.4
Application notes
• MSP430 SMBus
This application report describes a software implementation of the system management bus (SMBus) for the MSP430 microcontroller. It includes all master protocols, an interrupt-driven slave, and master usage examples. SMBus is derived from the I2C and is co | Doc
• MSP430 Isolated FET Interface
This application report describes how to build an isolated FET interface for the MSP430 Flash Emulation Tool (FET). When developing and debugging line-powered MSP430applications such as motor control, electricity energy meters, power monitoring systems etc | Doc
• HDQ Protocol Implementation with MSP430 | Doc
• FSK Modulation and Demodulation With the Microcontroller MSP430
This application report describes a software program for performing V.23 FSK modem transceiver functions using an MSP430 microcontroller. It makes use of novel filter architecture to perform DSP functions on a processor with only shift and add capabilities | Doc
• MSP430 32-kHz Crystal Oscillators (Rev. D)
Selection of the right crystal, correct load circuit, and proper board layout are important for a stable crystal oscillator. This application report summarizes crystal oscillator function and explains the parameters to select the correct crystal for ultra- | Doc
• Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) | Doc
• Generation and Recognition of DTMF Signals With the Microcontroller MSP430
The first part of the Application Report describes the generation of DTMF signals using the Microcontroller MSP430. Following an explanation of the most important specifications which are involved, the theoretical and mathematical processes will be discuss | Doc
• Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) | Doc
• Simple 1.5 V Boost Converter for MSP430
A simple, efficient, low-cost, boost converter to take 1.5 V from a single type-AA alkaline battery to the operating voltage required by the MSP430 family of ultralow-power microcontrollers is described. Expected battery life is up to 1000 hours. | Doc
• Efficient MSP430 Code Synthesis for an FIR Filter
Digital filtering can be easily accomplished on the MSP430 using efficient multiplication. The tool accompanying this document automatically converts FIR filter coefficients to MSP430 assembly code that can be used in any application. Horner’s method and | Doc
• Wave Digital Filtering Using the MSP430
Digital filtering is an integral part of many digital signal processing algorithms. Digital filters are characterized as either recursive [infinite impulse response (IIR)] or non-recursive [finite impulse response (FIR)] filters. IIR filters require a smal | Doc
• MSP Code Protection Features
MSP microcontrollers (MCUs) offer a number of features to help control code accessibility in the device, to add different layers of code access management and protection strategies. These include features that can lock or password protect the JTAG/SBW acce | Doc
• Economic Voltage Measurement With the MSP430 Family
This application report describes voltage and current measurement methods using the MSP430 universal timer/port module. The report explains the two measurement methods (charge and discharge) and shows how to measure voltage and current. The equations for t | Doc
• 1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 1.8 V to 5.5 V, and who must increase the application run time by making use of the complete batt | Doc
• Design Considerations When Using the MSP430 Graphics Library
LCDs are a growing commodity in todays market with products as diverse as children's toys to medical devices. Modern LCDs, along with the graphics displayed on them, are growing in complexity. A graphics library can simplify and accelerate development whil | Doc
• Digital Fan Control With Tachometer Using MSP430
Digital Fan Control with Tachometer using MSP430 Application Report | Doc
• Spread-Spectrum Clock Source Using an MSP430
While spread-spectrum clocking has long since been used in processor and memory clock trees, there are many other clocked systems, such as power supplies or switch-mode amplifiers, that continue to use a single-frequency clock. This can, in turn, generate | Doc
• Using the TPS3619 with MSP430 Microcontrollers Can Reduce Sys Power Consumption (Rev. A)
The MSP430 series of microcontrollers are ideal in applications where battery life is critical. These microcontollers require only 0.1?A of current in low-power RAM retention mode; In this mode the microcontroller must have power to retain volatile memor | Doc
• Tiny DCDC Converter Reference Design (Rev. A)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 6 V with the primary design objective to minimize solution size as well as to maintain h | Doc
• AES128 – A C Implementation for Encryption and Decryption (Rev. A)
This application report describes the AES algorithm and the use of a suggested C implementation for AES encryption and decryption with MSP430.Note: This document may be subject to the export control policies of the local government. | Doc
• Interfacing TMS320C5000 DSP to MSP430 Mixed Signal Microcontroller (Rev. A)
The TMS320C5000™ family of digital signal processors (DSPs) features Host Port Interface Controllers (HPI) and Direct Memory Access Controllers (DMAC) for efficient data movement without any CPU involvement. The HPI enables the DSP to interface to host p | Doc
• MSP430 LFXT1 Oscillator Accuracy
This report details the factors that influence achievable accuracy of the low frequency oscillator, specifically for real-time clock (RTC) applications. The intent of this application report is to provide an understanding of MSP430-specific factors influen | Doc
• Interfacing the 3-V MSP430 to 5-V Circuits
The interfacing of the 3-V MSP430x1xx and MSP430x4xx microcontroller families to circuits with a supply of 5 V or higher is shown. Input, output and I/O interfaces are given and explained. Worse-case design equations are provided, where necessary. Some sim | Doc
• Programming a Flash-Based MSP430 Using the JTAG Interface (Rev. H)
This application report has been superseded by the document shown below. Information previously contained in this application report can be found by clicking on the following links.- MSP430 Programming Via the JTAG Interface User's Guide Download MSP430 P | Doc
• Mixing C and Assembler with the MSP430
This application note describes how C and assembler code can be used together within an MSP430 application. The combination of C and assembler benefits the designer by providing the power of a high-level language as well as the speed, efficiency, and low-l | Doc
• Efficient Multiplication and Division Using MSP430 | Doc
• ESD Diode Current Specification
This document explains the maximum ESD diode current specified for GPIO on MSP microcontrollers. Sometimes signals on specific pins exceed the supply of the MSP MCU. In such a case, the device can handle this overvoltage condition through the ESD diodes, b | Doc
• Implementing An Ultralow-Power Keypad Interface with MSP430
Often in applications with keypads, the condition can occur where a key can be held or stuck down, causing excess current consmption and reducing the battery life of a battery-operated product. This application report shows a solution. The keypad interfa | Doc
• MSP430 Embedded Application Binary Interface
This document is a specification for the ELF-based Embedded Application Binary Interface (EABI) for the MSP430 family of processors from Texas Instruments. The EABI defines the low-level interface between programs, program components, and the execution env | Doc
• Choosing an Ultra Low-Power MCU
This application report describes how to compare ultralow-power MCUs. It discusses the key differences between popular low-power MCUs and how to interpret features and specifications and apply them to application requirements. | Doc
• Interfacing the MSP430 and TLC549/1549 A/D Converters
This application report describes how to interface an MSP430 mixed-signal microcontroller with the TLC549 and TLV1549 3-volt A/D converters. This report is written for the MSP430x11x(1) family, but can be adapted to any MSP430 derivative. | Doc
• Boost DC/DC with Ultra-Low Shutdown Current (Rev. A)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system that requires a very low input voltage range while also maintaining high efficiency. Battery life is extended as well as a result of th | Doc
• Current Transformer Phase Shift Compensation and Calibration
This application report demonstrates a digital technique to compensate and calibrate the phase shift of a current (or voltage) transformer used in electric power of energy measurement. Traditional analog compensation is replaced by a digital finite impulse | Doc
• MSP430 Family Mixed-Signal Microcontroller Application Reports
MSP430 Metering Application Report | Doc
• Li-Ion Battery Charger solution using the MSP430 | Doc
• MSP430 Software Coding Techniques (Rev. A)
This application report covers software techniques and topics of interest to all MSP430 programmers. The first part of the document discusses the MSP430 standard interrupt-based code flow model, recommended for the vast majority of applications. The next p | Doc
• MSP430 Capacitive Single-Touch Sensor Design Guide
This application report discusses the design of RC-type capacitive single-touch sensors using the MSP430 microcontroller. The MSP430 has some unique features that make it suitable for interfacing with capacitive-touch sensors. The RC-type method does not n | Doc
• MSP430 Flash Memory Characteristics (Rev. A)
Flash memory is a widely used, reliable, and flexible nonvolatile memory to store software code and data in a microcontroller. Failing to handle the flash according to data-sheet specifications may result in unreliable operation of the application. This ap | Doc
• Understanding MSP430 Flash Data Retention
The MSP430 family of microcontrollers, as part of its broad portfolio, offers both read-only memory (ROM)-based and flash-based devices. Understanding the MSP430 flash is extremely important for efficient, robust, and reliable system design. Data retention | Doc
• CRC Implementation with MSP430
Cyclic Redundancy Code (CRC) is commonly used to determine the correctness of a data transmission or storage. This application note presents a solution to compute 16-bit and 32-bit CRCs on the ultra low-power TI MSP430 microcontroller for the bitwise algor | Doc
• Random Number Generation Using the MSP430
Many applications require the generation of random numbers. These random numbers are useful for applications such as communication protocols, cryptography, and device individualization.Generating random numbers often requires the use of expensive dedicated | Doc
Evaluation Kits
MSP-FET430P120: MSP430F12X/F11X2/F12X2 Flash Emulation Tool
MSP-TS430DW28: MSP-TS430DW28 - 28-pin Target Development Board for MSP430F1x and MSP430F2x MCUs
MSP-FET430U28: 28-pin Target Development Board and MSP-FET USB Programmer Bundle for MSP430F1x and MSP430F2x MCUs


Features, Applications

- Active Mode: at 1 MHz, V - Standby Mode: A - Off Mode (RAM Retention): 0.1 A Wake-Up From Standby Mode in less than s 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

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 + 128B Flash Memory 128B RAM + 256B Flash Memory 128B RAM + 256B Flash Memory 256B RAM Available a 20-Pin Plastic Small-Outline Wide Body (SOWB) Package, 20-Pin Plastic Small-Outline Thin Package, 20-Pin TVSOP (F11x1A only) and 24-Pin QFN For Complete Module Descriptions, Refer to the MSP430x1xx Family User's Guide, Literature Number SLAU049

Components On-Chip Comparator for Analog Signal Compare Function or Slope A/D Conversion

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 6s. 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.


Product Preview 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. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

1/2/4 KB ROM/ Flash+126/256B Flash INFO 'C': ROM 'F': Flash

8 I/O Port P1 8 I/O's, All With Interrupt Capabililty JTAG MCLK MAB, 16 Bit MAB, 4 Bit MCB MDB, 16 Bit Bus Conv. MDB, 8 Bit CPU Incl. 16 Reg. Test JTAG TEST Watchdog Timer ACLK SMCLK Timer_A 3 CC Register CCR0/1/2 x TACLK or INCLK CCI1 Outx CCIx INCLK Comparator-A Input Multiplexer CCI1 RC Filtered O/P Out0 Internal Vref Analog Switch CCI0 I/O Port P2 6 I/O's All With Interrupt Capabililty

TERMINAL NAME P2.4/CA1/TA2 P2.5/Rosc RST/NMI TEST VCC VSS XIN DW, PW, or DGV NO. RGE NO. I I/O I DESCRIPTION General-purpose digital I/O pin/Timer_A, clock signal TACLK input General-purpose digital I/O pin/Timer_A, capture: CCI0A input, compare: Out0 output/BSL transmit General-purpose digital I/O pin/Timer_A, capture: CCI1A input, compare: Out1 output General-purpose digital I/O pin/Timer_A, capture: CCI2A input, compare: Out2 output General-purpose digital I/O pin/SMCLK signal output/test clock, input terminal for device programming and test General-purpose digital I/O pin/Timer_A, compare: Out0 output/test mode select, input terminal for device programming and test General-purpose digital I/O pin/Timer_A, compare: Out1 output/test data input terminal General-purpose digital I/O pin/Timer_A, compare: Out2 output/test data output terminal or data input during programming General-purpose digital I/O pin/ACLK output General-purpose digital I/O pin/Timer_A, clock signal at INCLK General-purpose digital I/O pin/Timer_A, capture: CCI0B input/ comparator_A, output/BSL receive General-purpose digital I/O pin/Timer_A, compare: Out1 output/ comparator_A, input General-purpose digital I/O pin/Timer_A, compare: Out2 output/ comparator_A, input General-purpose digital I/O pin/input for external resistor that defines the DCO nominal frequency Reset or nonmaskable interrupt input Selects test mode for JTAG pins on Port1. The device protection fuse is connected to TEST. Supply voltage Ground reference Input terminal of crystal oscillator Output terminal of crystal oscillator


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