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Texas Instruments MSP430G2211IRSARQ1
- Part No.:
- MSP430G2211IRSARQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2211IRSARQ1.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,705
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Product details
Overview
MSP430G2211IRSARQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade 16-bit ultra-low-power mixed-signal microcontroller featuring 2 KB flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, brownout detection, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and supports five low-power modes, including 0.1 µA off-mode with RAM retention. It targets battery-powered automotive sensor nodes requiring precise analog signal comparison and minimal energy consumption.
For engineers reviewing the MSP430G2211IRSARQ1 datasheet, MSP430G2211IRSARQ1 pinout, MSP430G2211IRSARQ1 application, or MSP430G2211IRSARQ1 equivalent, key selection criteria include its QFN-16 RSA package, integrated Comparator_A+ for slope ADC, Spy-Bi-Wire debug interface, 10 I/O pins (8 on P1, 2 on P2), and automotive temperature range (–40°C to 105°C).
Technical Context
The MSP430G2211IRSARQ1 implements a 16-bit RISC CPU with 16 general-purpose registers and constant generators for optimized code efficiency. Its clock system integrates a digitally controlled oscillator (DCO) calibrated up to 16 MHz, internal very-low-power LF oscillator, and 32-kHz crystal support - all configurable via the basic clock module to supply ACLK, MCLK, and SMCLK.
It features a dedicated Comparator_A+ module (exclusive to G2x11 family) with eight input channels (CA0–CA7), CAOUT output, and programmable hysteresis for analog threshold detection and slope-based ADC. Interrupts are supported from Timer_A overflow and capture/compare events, comparator output transitions, and edge-triggered I/O on all 10 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle time; enables deterministic real-time response in resource-constrained automotive sensors. |
| Memory | 2 KB flash (main memory) + 256 B information memory + 128 B RAM; supports in-system programming via Spy-Bi-Wire without external voltage. |
| Power Consumption | Active mode: 220 µA at 1 MHz/2.2 V; Standby: 0.5 µA; Off mode with RAM retention: 0.1 µA - extends battery life in always-on monitoring systems. |
| Comparator | Comparator_A+ with 8-channel analog input (CA0–CA7), CAOUT output, and slope ADC capability - enables precision battery voltage supervision and analog event triggering. |
| Clock Sources | Internal DCO (up to 16 MHz, factory-calibrated), internal VLO, 32-kHz crystal (XIN/XOUT), and external digital clock - provides flexible timing for wake-up and measurement intervals. |
| Operating Temperature | –40°C to +105°C (AEC-Q100 Grade 2); validated for under-hood and cabin-mounted automotive electronics. |
| I/O Pins | 10 total: P1.0–P1.7 (8-bit port with Schmitt-trigger inputs, pullup/pulldown control, interrupt on edge), P2.6–P2.7 (2-bit port with same features). |
Pinout & Package
Package: 16-pin QFN (RSA), 4 mm × 4 mm body size, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, DVCC | Supply voltage input | Primary power rail (1.8–3.6 V); must be decoupled locally for stable core and peripheral operation. |
| 14, DVSS | Ground reference | System ground return; connects to QFN thermal pad for thermal and EMI performance. |
| 10, RST/NMI/SBWTDIO | Reset / non-maskable interrupt / debug I/O | Active-low reset input; dual-function pin for Spy-Bi-Wire bidirectional data during programming and debugging. |
| 11, TEST/SBWTCK | Test mode select / debug clock | Selects JTAG or Spy-Bi-Wire interface; provides clock input for serial debug communication. |
| 12, XOUT/P2.7 | Oscillator output / general I/O | Crystal oscillator buffer output; also functions as GPIO with interrupt and pullup/pulldown control. |
| 13, XIN/P2.6/TA0.1 | Oscillator input / general I/O / timer output | Crystal or external clock input; also serves as GPIO and Timer_A compare output channel 1. |
| P1.0–P1.7 | Programmable digital I/O | 8-bit port with individually configurable direction, pullup/pulldown, interrupt edge select, and Schmitt-trigger inputs - supports sensor interfacing and status signaling. |
| NC (pins 13 & 15) | No-connect terminal | Not bonded internally; must be left unconnected or tied to DVSS per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode with RAM retention enables multi-year battery life in intermittent-sampling automotive sensors. |
| Spy-Bi-Wire debug interface | 2-wire serial interface replaces full JTAG; reduces PCB footprint and debug connector count while supporting full flash programming and real-time emulation. |
| Comparator_A+ with 8 inputs | Hardware-based analog comparison across CA0–CA7 eliminates need for external comparators in voltage monitoring and slope ADC applications. |
| Five software-selectable low-power modes | LPM0–LPM4 allow granular power-state control - e.g., LPM3 retains ACLK for RTC while disabling CPU and DCO to minimize current draw. |
| Factory-calibrated DCO | DCO frequencies pre-calibrated at 1 MHz, 8 MHz, and 12 MHz in flash segment A - enables accurate timing without external crystal in cost-sensitive designs. |
Applications
| Automotive Cabin Sensor Node | Engine Bay Temperature Monitor |
|---|---|
Use Scenario: Compact, battery-powered sensor unit mounted inside vehicle cabin to monitor CO₂, humidity, and ambient temperature. IC Role / Device Role / Timing Role: MSP430G2211IRSARQ1 acts as main controller and analog signal conditioner - reads analog sensor outputs via Comparator_A+, executes threshold logic, and transmits alerts over LIN bus using Timer_A-generated baud timing. Use Value: Ultra-low standby current (0.5 µA) and fast wake-up (<1 µs) enable responsive event-driven sampling while preserving coin-cell battery life beyond 5 years. |
Use Scenario: Under-hood temperature probe installed near intake manifold to detect overheating conditions and trigger cooling fan activation. IC Role / Device Role / Timing Role: MSP430G2211IRSARQ1 performs periodic analog voltage sampling of thermistor network, compares against calibrated thresholds using Comparator_A+, and asserts fault signal via P1.x GPIO. Use Value: AEC-Q100 qualification and –40°C to +105°C operation ensure reliable function in harsh thermal environments without derating or external protection circuitry. |
| Smart Seatbelt Buckle Detector | Low-Cost Battery Management Unit |
Use Scenario: Occupancy-aware seatbelt reminder system that detects buckle insertion and occupant weight via resistive sensing. IC Role / Device Role / Timing Role: MSP430G2211IRSARQ1 interfaces with analog force-sensing resistor (FSR) and microswitch, uses Comparator_A+ to detect threshold crossings, and drives LED indicator via P1.x outputs with PWM dimming from Timer_A. Use Value: Integrated comparator and 10 GPIO eliminate discrete op-amps and logic ICs, reducing BOM count and enabling single-layer PCB design. |
Use Scenario: 12-V lead-acid battery voltage supervisor in entry-level automotive accessories (e.g., dashcams, GPS trackers). IC Role / Device Role / Timing Role: MSP430G2211IRSARQ1 continuously monitors battery voltage using internal reference and Comparator_A+, triggers low-voltage shutdown sequence, and logs event timestamps using Timer_A and RAM retention. Use Value: Brownout detector and 0.1 µA off-mode with RAM retention allow safe shutdown and state recovery after deep discharge - critical for maintaining configuration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2211IPW4RQ1 | Same core, memory, and peripherals; differs only in 14-pin TSSOP (PW) package (5 mm × 4.4 mm) versus 16-pin QFN (RSA). | Preferred where board space allows larger footprint and hand-soldering is required; lacks thermal pad for enhanced thermal dissipation. | Select when legacy PCB layout or assembly constraints favor TSSOP over QFN; identical firmware and electrical behavior. |
| MSP430G2201IRSARQ1 | Same package and pinout, but lacks Comparator_A+ module and has only 512 B flash; no CA0–CA7 inputs or CAOUT output. | Suitable for digital-only sensor interfaces without analog comparison; cannot perform slope ADC or battery voltage supervision. | Choose only if analog comparator functionality is unnecessary and flash requirement is ≤512 B - otherwise, MSP430G2211IRSARQ1 provides essential analog integration. |
Compared with MSP430G2211IPW4RQ1, the MSP430G2211IRSARQ1 offers superior thermal performance and smaller footprint; compared with MSP430G2201IRSARQ1, it delivers indispensable analog signal conditioning capability for automotive voltage monitoring and sensor thresholding - making it the only option among the three with integrated Comparator_A+.
Availability
MSP430G2211IRSARQ1 is available at Aetrix Electronics and suitable for automotive cabin sensors, engine bay monitors, smart seatbelt systems, and low-cost battery management units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MSP430G2211IRSARQ1 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 automotive qualification expertise.
The MSP430G2x11-Q1 product line delivers AEC-Q100-compliant ultra-low-power MCUs optimized for cost-sensitive automotive sensor nodes, battery monitoring, and body electronics - emphasizing analog integration, robustness, and energy efficiency.
FAQ
What is the operating temperature range for the MSP430G2211IRSARQ1?
The MSP430G2211IRSARQ1 is qualified to AEC-Q100 Grade 2 specifications and operates reliably from –40°C to +105°C. This range is validated for under-hood and cabin-mounted automotive applications, with thermal characteristics confirmed across the full span in TI's production test flow. The device maintains specified timing, flash endurance, and analog performance within these limits.
Does the MSP430G2211IRSARQ1 support in-system programming without external voltage?
Yes, the MSP430G2211IRSARQ1 supports in-system programming via its integrated Spy-Bi-Wire interface with no external programming voltage required. The device uses internal charge pumps to generate necessary voltages for flash write/erase operations, enabling field firmware updates and production programming directly through the two-wire debug interface.
How many analog comparator inputs does the MSP430G2211IRSARQ1 have?
The MSP430G2211IRSARQ1 includes the Comparator_A+ module with eight dedicated analog input channels: CA0 through CA7. These are mapped to P1.0–P1.3, P1.4–P1.5, P1.6–P1.7, and P2.6–P2.7 per the device's terminal function table - enabling flexible analog signal routing for voltage supervision and slope ADC configurations.
What clock sources are available on the MSP430G2211IRSARQ1?
The MSP430G2211IRSARQ1 provides four clock sources: an internal digitally controlled oscillator (DCO) calibrated up to 16 MHz, an internal very-low-power low-frequency oscillator (VLO), a 32-kHz crystal oscillator (XIN/XOUT), and an external digital clock input. These feed the basic clock module to generate ACLK, MCLK, and SMCLK for CPU and peripheral timing.
Is the MSP430G2211IRSARQ1 pin-compatible with other devices in the MSP430G2x11-Q1 family?
Yes, the MSP430G2211IRSARQ1 shares identical pinout and package (16-pin RSA QFN) with other members of the MSP430G2x11-Q1 family, including the MSP430G2201IRSARQ1. However, functional differences exist - notably, only MSP430G2211 variants include the Comparator_A+ module. Firmware and hardware layouts designed for the RSA package are interchangeable at the board level.
MSP430G2211IRSARQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430G2
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2211IRSARQ1 FAQ
1.How can I place an order for MSP430G2211IRSARQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2211IRSARQ1 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 MSP430G2211IRSARQ1 reliable?
The price and inventory of MSP430G2211IRSARQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2211IRSARQ1 is usually 5 days.
3.What payment methods are accepted for MSP430G2211IRSARQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2211IRSARQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2211IRSARQ1?
MSP430G2211IRSARQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2211IRSARQ1 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 MSP430G2211IRSARQ1?
For technical support, including MSP430G2211IRSARQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2211IRSARQ1 requirements.
6.How does Aetrix verify that MSP430G2211IRSARQ1 is sourced from the original manufacturer or authorized distributors?
All MSP430G2211IRSARQ1 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 MSP430G2211IRSARQ1 meets industry standards.
7.What is the process for return or replacement of MSP430G2211IRSARQ1?
All MSP430G2211IRSARQ1 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2211IRSARQ1, 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 MSP430G2211IRSARQ1 part is unused and in its original packaging.
Return procedure for MSP430G2211IRSARQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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