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Texas Instruments MSP430F2111IDWR
- Part No.:
- MSP430F2111IDWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MSP430F2111IDWR.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,634
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Product details
Overview
MSP430F2111IDWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2KB flash, 128B RAM, a 16-bit Timer_A with three capture/compare registers, an on-chip analog comparator for slope A/D conversion, and brownout detection. It operates from 1.8 V to 3.6 V and supports active-mode current of 250 μA at 1 MHz/2.2 V - optimized for battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2111IDWR datasheet, MSP430F2111IDWR pinout, MSP430F2111IDWR application, or MSP430F2111IDWR equivalent, key selection criteria include its 20-pin TSSOP (PW) package, calibrated DCO frequencies up to 16 MHz, ultra-fast <1 μs wake-up from standby mode, and integrated comparator-based analog signal conditioning without external ADC.
Technical Context
The MSP430F2111IDWR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and high-frequency crystal input up to 16 MHz - all configurable via BCSCTL registers.
Peripheral integration includes Timer_A3 with three independent capture/compare channels supporting PWM, interval timing, and event capture; Comparator_A+ with eight selectable inputs (CA0–CA7) and CAOUT output; and dual 8-bit I/O ports (P1/P2) with individually programmable pullup/down resistors and edge-selectable interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle time and 16 general-purpose registers |
| Memory | 2KB + 256B flash (main + info memory) and 128B RAM - supports in-system programming via JTAG or BSL UART |
| Operating Voltage | 1.8 V to 3.6 V - enables direct operation from single-cell Li-ion or two-cell alkaline batteries |
| Active Current | 250 μA at 1 MHz / 2.2 V - allows >1-year runtime on coin-cell batteries in duty-cycled sensor applications |
| Low-Power Modes | LPM4 draws 0.1 μA with RAM retention - critical for long-term data logging during sleep intervals |
| Wake-Up Time | <1 μs from standby mode - ensures responsive real-time reaction to external events like sensor triggers |
| Comparator Inputs | Eight-channel analog multiplexer (CA0–CA7) supporting slope A/D conversion without external components |
Pinout & Package
Package: 20-pin TSSOP (PW), body width 4.4 mm, JEDEC MO-153 compliant. Thermal pad not present - standard plastic package with exposed leadframe not applicable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external timing source for precise event synchronization or gated clocking |
| P1.1/TA0/TDI | Capture/Compare 0 / JTAG Test Data Input | Dual-function pin: supports PWM output or BSL/JTAG programming interface |
| P1.2/TA1 | Capture/Compare 1 | Generates second PWM channel or captures rising/falling edges on external signals |
| P1.3/TA2 | Capture/Compare 2 | Provides third independent timing channel for multi-signal monitoring or motor control |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG Test Clock | Drives peripheral modules or serves as debug clock during firmware development |
| P2.0/ACLK/CA2 | ACLK output / Comparator input | Routes 32-kHz crystal clock to peripherals while simultaneously feeding analog comparator |
| XIN/P2.6/CA6 | Crystal oscillator input / Comparator input | Supports precision timing reference or analog signal routing without pin conflict |
| RST/NMI | Reset / Non-maskable interrupt | Hardware reset initiation and high-priority fault handling - essential for system reliability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA LPM4 current enables multi-year battery life in wireless sensor endpoints |
| Integrated analog comparator | Eliminates need for external ADC in threshold-detection applications like battery voltage monitoring |
| Calibrated DCO | Four factory-trimmed frequencies (1/8/12/16 MHz ±1%) enable accurate timing without external crystal |
| On-chip emulation module | Enables full-speed debugging and flash programming via MSP-FET430UIF without target hardware modification |
| Bootstrap loader (BSL) | UART-based field firmware updates using only P1.1 (TX) and P2.2 (RX) - no JTAG required |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
Use Scenario: Compact environmental sensor collecting temperature/humidity and transmitting via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central controller managing sensor readout, low-power scheduling, and RF packet framing with precise timing via Timer_A. Use Value: 250 μA active current and 0.1 μA LPM4 extend coin-cell lifetime beyond 2 years under 1-minute sampling intervals. |
Use Scenario: Standalone vibration monitor mounted on industrial equipment, storing peak acceleration values hourly. IC Role / Device Role / Timing Role: Real-time data acquisition unit using Comparator_A+ for analog peak detection and Timer_A for interval-triggered storage. Use Value: Slope A/D conversion eliminates external ADC, reducing BOM cost and PCB area by 30% versus discrete solutions. |
| Portable Medical Monitor | Smart Energy Meter Interface |
Use Scenario: Wearable pulse oximeter requiring low-noise analog front-end and minimal power draw. IC Role / Device Role / Timing Role: Signal conditioner and controller - Comparator_A+ performs analog-to-digital conversion of photodiode signals; Timer_A manages LED pulsing. Use Value: Sub-1 μs wake-up ensures immediate response to user button press, meeting clinical usability requirements. |
Use Scenario: Tamper-resistant utility meter communicating via PLC or RF mesh, monitoring voltage/current thresholds. IC Role / Device Role / Timing Role: Supervisory MCU monitoring analog inputs via Comparator_A+, triggering alerts on overvoltage conditions. Use Value: Brownout detector and internal 1.2-V reference provide reliable operation across wide AC line fluctuations without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2012IPW | 1KB flash, 128B RAM, same 20-pin TSSOP package and peripheral set - lacks CA6/CA7 inputs | Suitable for simpler sensor nodes where fewer comparator inputs are needed | Select when flash requirement is ≤1KB and CA6/CA7 functionality is unused |
| MSP430G2553IPW28 | 16KB flash, 512B RAM, 28-pin TSSOP, enhanced USCI module - higher pin count and memory | Required for designs needing UART/SPI/I²C communication or larger firmware footprint | Choose when serial connectivity or >2KB code space is mandatory; not drop-in compatible |
Compared with MSP430F2111IDWR, MSP430F2012IPW offers identical low-power performance and package but reduced memory and analog input count, while MSP430G2553IPW28 provides expanded peripherals and memory at the cost of larger footprint and higher active current.
Availability
MSP430F2111IDWR is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, and portable medical monitors requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430F2111IDWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in low-power design.
The MSP430F2111IDWR belongs to the MSP430x2xx ultra-low-power microcontroller family, engineered specifically for energy-constrained applications such as portable instrumentation, sensor interfaces, and battery-operated IoT endpoints.
FAQ
What is the maximum operating frequency of the MSP430F2111IDWR?
The MSP430F2111IDWR supports a maximum system clock (MCLK) frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ±10%. This is achieved using the factory-calibrated DCO or an external high-frequency crystal. At lower supply voltages (e.g., 2.2 V), the maximum supported frequency reduces to 6 MHz per TI's recommended operating conditions.
Does the MSP430F2111IDWR include a hardware UART or USART?
No, the MSP430F2111IDWR does not integrate a dedicated hardware UART or USART module. Serial communication must be implemented via software bit-banging or by configuring Timer_A outputs and comparator inputs for custom protocols. For UART-capable alternatives, consider the MSP430G2553IPW28, which includes USCI_A0.
What package type does the MSP430F2111IDWR use?
The MSP430F2111IDWR uses a 20-pin TSSOP (Thin Shrink Small Outline Package), designated as PW in TI's ordering nomenclature. It measures 6.5 mm × 4.4 mm with 0.65 mm lead pitch and is RoHS-compliant. This package is distinct from the DW (SOWB) and DGV (TVSOP) variants listed in the same family.
Can the MSP430F2111IDWR perform analog-to-digital conversion without an external ADC?
Yes, the MSP430F2111IDWR can perform slope analog-to-digital conversion using its integrated Comparator_A+ module and Timer_A. By charging a capacitor through a known current and measuring time-to-compare against a reference voltage, it achieves effective 10–12-bit resolution without external components - confirmed in TI's SLAS439F datasheet Section 1.1.
Is the MSP430F2111IDWR pin-compatible with other devices in the MSP430F21x1 family?
Yes, the MSP430F2111IDWR shares identical pinout and electrical characteristics with other 20-pin TSSOP variants in the MSP430F21x1 series (e.g., MSP430F2101IDWR, MSP430F2121IDWR). Differences are limited to flash size, RAM, and factory calibration data - allowing direct PCB reuse across family members when memory requirements align.
MSP430F2111IDWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 2KB (2K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2111IDWR FAQ
1.How can I place an order for MSP430F2111IDWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2111IDWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F2111IDWR reliable?
The price and inventory of MSP430F2111IDWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2111IDWR is usually 5 days.
3.What payment methods are accepted for MSP430F2111IDWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2111IDWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2111IDWR?
MSP430F2111IDWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2111IDWR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F2111IDWR?
For technical support, including MSP430F2111IDWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2111IDWR requirements.
6.How does Aetrix verify that MSP430F2111IDWR is sourced from the original manufacturer or authorized distributors?
All MSP430F2111IDWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F2111IDWR meets industry standards.
7.What is the process for return or replacement of MSP430F2111IDWR?
All MSP430F2111IDWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2111IDWR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F2111IDWR part is unused and in its original packaging.
Return procedure for MSP430F2111IDWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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