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Texas Instruments MSP430G2211IRSA16R
- Part No.:
- MSP430G2211IRSA16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2211IRSA16R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
MSP430G2211IRSA16R from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 2 KB flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, an integrated analog comparator (Comp_A+), and operation across 1.8 V–3.6 V. It delivers sub-1 µs wake-up from standby mode and supports battery-powered sensor nodes requiring precision analog signal comparison and low-energy timing.
For engineers reviewing the MSP430G2211IRSA16R datasheet, MSP430G2211IRSA16R pinout, MSP430G2211IRSA16R application, or MSP430G2211IRSA16R equivalent, this page provides verified technical context, package-specific pin functions, real-world use cases in sensor systems and energy harvesting interfaces, and validated alternative options for design continuity.
Technical Context
The MSP430G2211IRSA16R implements a 16-bit RISC CPU with constant generators and six software-selectable low-power modes (LPM0–LPM4), enabling extended battery life in portable measurement applications. Its clock system integrates a digitally controlled oscillator (DCO), internal low-frequency oscillator (VLO), and external 32-kHz crystal support via XIN/XOUT pins.
This device belongs to the MSP430G2x11 family and includes the Comp_A+ module-eight-channel analog comparator supporting slope A/D conversion, battery voltage supervision, and external analog monitoring. Unlike G2x01 variants, it features CA0–CA7 inputs and CAOUT output mapped to P1.x pins, confirmed for the RSA (16-QFN) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers; enables efficient code execution and deterministic interrupt latency. |
| Flash / RAM | 2 KB flash memory (512-byte segments) + 128 B RAM; supports in-system programming via Spy-Bi-Wire and on-chip security fuse. |
| Operating Voltage | 1.8 V to 3.6 V supply range; allows direct integration with coin-cell batteries and low-voltage power rails. |
| Active Current | 220 µA at 1 MHz, 2.2 V; enables multi-year operation in always-on sensor endpoints with periodic wake-up. |
| Standby / Off Current | 0.5 µA in LPM3 (ACLK active), 0.1 µA in LPM4 (all clocks off); critical for ultra-low-quiescent IoT edge nodes. |
| Timer & Comparator | 16-bit Timer_A2 with two capture/compare registers + eight-input analog comparator (Comp_A+); supports slope ADC, PWM generation, and threshold-triggered wake-up. |
| Package | 16-pin QFN (RSA), 3 mm × 3 mm, 0.4 mm pitch; exposes all I/O, clock, and debug pins including SBWTDIO/SBWTCK for compact PCB layouts. |
Pinout & Package
Package: 16-pin QFN (RSA), 3 mm × 3 mm body, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Power supply input | Primary VCC connection; must be decoupled locally to suppress switching noise on core logic and analog comparator. |
| 14 (DVSS) | Ground reference | Digital ground return; tied to QFN thermal pad for thermal and EMI performance in high-density designs. |
| 9 (RST/NMI/SBWTDIO) | Reset / NMI input / debug I/O | Multi-function pin: resets MCU on low pulse, accepts non-maskable interrupts, and serves as bidirectional data line for Spy-Bi-Wire programming. |
| 11 (TEST/SBWTCK) | Debug clock input | Drives Spy-Bi-Wire interface clock; must be pulled high during normal operation to avoid unintended debug entry. |
| P1.0–P1.7 | General-purpose I/O with peripheral multiplexing | Eight-bit port supporting timer inputs (TA0CLK, TA0.0, TA0.1), SMCLK/ACLK outputs, comparator inputs (CA0–CA4), and JTAG signals (TCK/TMS/TDI/TDO). |
| XIN/P2.6 & XOUT/P2.7 | Crystal oscillator interface | Supports 32.768 kHz watch crystal for precise real-time clock; XOUT also functions as general-purpose I/O when crystal not used. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA LPM4 current enables >10-year battery life in coin-cell–powered devices like environmental sensors. |
| Sub-1 µs wake-up time | DCO stabilizes in <1 µs from LPM3/LPM4, allowing rapid response to external events without clock startup delay. |
| Integrated analog comparator | Comp_A+ with eight selectable inputs (CA0–CA7) and CAOUT output enables hardware-based voltage threshold detection without ADC overhead. |
| Spy-Bi-Wire debug interface | Two-wire (SBWTDIO/SBWTCK) programming and emulation reduces PCB footprint versus full JTAG, ideal for space-constrained modules. |
| Five programmable low-power modes | LPM0–LPM4 allow granular power-state control per application phase-e.g., LPM3 for RTC + comparator monitoring, LPM4 for deep sleep. |
Applications
| Smart Sensor Node | Battery Voltage Monitor |
|---|---|
|
Use Scenario: Compact wireless temperature/humidity sensor node powered by CR2032 battery, transmitting data every 5 minutes. IC Role / Device Role / Timing Role: MSP430G2211IRSA16R acts as main controller, executing sensor reads, comparator-based wake-up triggers, and RF transmission timing via Timer_A. Use Value: 0.5 µA LPM3 current extends battery life beyond 3 years; integrated comparator eliminates need for external supervisor IC. |
Use Scenario: Low-cost battery management circuit for rechargeable Li-ion packs in portable medical devices. IC Role / Device Role / Timing Role: MSP430G2211IRSA16R monitors cell voltage using Comp_A+ against internal reference, triggering alert or shutdown via GPIO. Use Value: CA0–CA7 inputs allow simultaneous monitoring of multiple voltage thresholds; no external op-amp or reference required. |
| Energy-Harvesting Interface | Industrial Control Edge Node |
|
Use Scenario: Solar- or vibration-powered sensor hub collecting data from multiple analog transducers before transmission. IC Role / Device Role / Timing Role: MSP430G2211IRSA16R manages energy storage state, performs slope A/D on harvested voltage, and schedules transmissions using Timer_A intervals. Use Value: Slope A/D capability converts analog harvest source into digital state without external ADC; 1.8 V minimum operation matches supercapacitor discharge curve. |
Use Scenario: DIN-rail mounted condition monitor for motors or pumps, detecting overtemperature or vibration anomalies. IC Role / Device Role / Timing Role: MSP430G2211IRSA16R samples analog sensor outputs via comparator windowing, logs timestamps using ACLK, and asserts fault flag on threshold breach. Use Value: Brownout detector ensures reliable reset during unstable industrial power; 85°C operating range supports enclosure mounting near heat sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2231IRSA16 | Includes UART and more I/O (16 pins total); same 2 KB flash, 128 B RAM, and Comp_A+ but adds serial communication capability. | Required where host communication (e.g., Bluetooth LE module interface) is needed alongside analog monitoring. | Select when serial connectivity is mandatory; otherwise, MSP430G2211IRSA16R offers lower cost and identical analog/timing functionality. |
| MSP430FR2111IRSA16 | Ferroelectric RAM (FRAM) instead of flash; 1.5 KB FRAM, 512 B RAM; higher write endurance, faster write speed, and 1.8 V–3.6 V operation. | Preferred for frequent data logging or firmware updates in field-deployed units where flash wear-out is a concern. | Choose for enhanced data reliability in cyclic write scenarios; MSP430G2211IRSA16R remains optimal for static firmware and infrequent configuration changes. |
Compared with MSP430G2231IRSA16, the MSP430G2211IRSA16R omits UART but reduces BOM count and cost in standalone sensing roles; versus MSP430FR2111IRSA16, it trades FRAM endurance for proven flash reliability and lower unit price in fixed-function deployments.
Availability
MSP430G2211IRSA16R is available at Aetrix Electronics and suitable for smart sensor nodes, battery voltage monitors, and energy-harvesting interfaces requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430G2211IRSA16R 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 decades of expertise in ultralow-power microcontrollers.
The MSP430G2xx series was designed specifically for cost-sensitive, battery-operated measurement applications-emphasizing minimal active/standby current, integrated analog peripherals, and rapid wake-up for intermittent sensing tasks.
FAQ
What is the maximum operating frequency of the MSP430G2211IRSA16R?
The MSP430G2211IRSA16R supports up to 16 MHz MCLK when VCC ≥ 3.3 V, with duty cycle maintained at 50% ±10%. At 2.2 V, the maximum frequency is limited to 6 MHz. This DCO-based clocking enables flexible trade-offs between performance and power consumption in real-time applications.
Does the MSP430G2211IRSA16R include a hardware UART or SPI interface?
No, the MSP430G2211IRSA16R does not integrate UART, SPI, or I²C peripherals. It relies on software-based bit-banging for serial communication if required. For hardware serial support, consider the MSP430G2231IRSA16, which adds UART while retaining the same package and core analog features.
How many analog comparator inputs does the MSP430G2211IRSA16R support?
The MSP430G2211IRSA16R supports eight analog comparator inputs (CA0 through CA7), all accessible on Port 1 pins. These inputs feed the Comp_A+ module, enabling flexible slope A/D conversion, windowed voltage monitoring, and hardware-triggered interrupts without CPU intervention.
What debug interface does the MSP430G2211IRSA16R use?
The MSP430G2211IRSA16R uses the two-wire Spy-Bi-Wire (SBW) interface, implemented on pins RST/NMI/SBWTDIO (Pin 9) and TEST/SBWTCK (Pin 11). This reduces PCB routing complexity compared to full 4-wire JTAG and is fully supported by TI's MSP-FET and Code Composer Studio tools.
Is the QFN thermal pad of the MSP430G2211IRSA16R required to be connected to ground?
Yes, the exposed thermal pad on the MSP430G2211IRSA16R QFN package is electrically connected to DVSS and must be soldered to a PCB ground plane. This connection improves thermal dissipation, reduces EMI susceptibility, and stabilizes the internal reference for the analog comparator and brownout detector.
MSP430G2211IRSA16R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2211IRSA16R FAQ
1.How can I place an order for MSP430G2211IRSA16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2211IRSA16R 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 MSP430G2211IRSA16R reliable?
The price and inventory of MSP430G2211IRSA16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2211IRSA16R is usually 5 days.
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MSP430G2211IRSA16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2211IRSA16R 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 MSP430G2211IRSA16R?
For technical support, including MSP430G2211IRSA16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2211IRSA16R requirements.
6.How does Aetrix verify that MSP430G2211IRSA16R is sourced from the original manufacturer or authorized distributors?
All MSP430G2211IRSA16R 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 MSP430G2211IRSA16R meets industry standards.
7.What is the process for return or replacement of MSP430G2211IRSA16R?
All MSP430G2211IRSA16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2211IRSA16R, 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 MSP430G2211IRSA16R part is unused and in its original packaging.
Return procedure for MSP430G2211IRSA16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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