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Texas Instruments MSP430F2111IRGER
- Part No.:
- MSP430F2111IRGER
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2111IRGER.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,473
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Product details
Overview
MSP430F2111IRGER from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 2KB flash, 128B RAM, a 16-bit Timer_A with three capture/compare registers, and an on-chip analog comparator for slope A/D conversion - deployed in battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2111IRGER datasheet, MSP430F2111IRGER pinout, MSP430F2111IRGER application, or MSP430F2111IRGER equivalent, this page delivers verified technical context, package-specific pin functions, low-power operating mode behavior, and validated alternative options for embedded sensor interface design.
Technical Context
The MSP430F2111IRGER implements a 16-bit CPU with constant generators and seven addressing modes, executing register-to-register instructions in one CPU cycle at up to 16 MHz MCLK. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at four frequencies (1/8/12/16 MHz), plus support for 32-kHz crystal and high-frequency external sources.
It features two 8-bit I/O ports (P1 and P2) with individually configurable pullup/down resistors, edge-selectable interrupts, and JTAG-compatible test pins. The Comparator_A+ supports analog signal comparison and slope ADC functionality, while Timer_A3 enables PWM generation, input capture, and interval timing with interrupt capability on overflow and each CCR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle time at 16 MHz |
| Memory | 2KB + 256B flash (main + info memory), 128B RAM - supports in-system programming via JTAG or BSL UART |
| Supply Voltage | 1.8 V to 3.6 V - enables direct operation from single-cell Li-ion or dual-cell alkaline batteries |
| Active Mode Current | 250 μA at 1 MHz / 2.2 V - optimized for continuous sensing with minimal energy drain |
| Low-Power Modes | LPM4 draws 0.1 μA with RAM retention - allows multi-year battery life in wake-on-event applications |
| Wake-Up Time | <1 μs from standby to active mode - critical for responsive event-driven sensor sampling |
| Comparator_A+ | 8-channel analog input mux with CAOUT output - enables hardware-based slope ADC without external components |
Pinout & Package
Package: 24-pin QFN (RGE), 4 mm × 4 mm, exposed thermal pad (to be connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Primary digital/analog supply rail (1.8–3.6 V); decoupling required near pin |
| VSS | Ground reference | Digital and analog common return; thermal pad must connect to VSS for thermal performance |
| RST/NMI | Reset or non-maskable interrupt input | Active-low reset initiation; also accepts NMI events - internal pullup enabled by default |
| P1.0/TACLK | Timer_A clock input / general I/O | Accepts external clock source for Timer_A; configured as GPIO when not used for timing |
| P2.2/CAOUT/TA0/CA4 | Comparator output / Timer_A capture/compare / analog input | Delivers comparator result directly to Timer_A for slope ADC; also serves as CA4 analog input |
| XIN/P2.6/CA6 | Crystal oscillator input / analog input | Connects to 32-kHz watch crystal; doubles as CA6 analog channel when oscillator disabled |
| TEST | JTAG test mode select | Enables JTAG interface during programming/debugging; tied high via internal pullup if unused |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA LPM4 current with RAM retention enables decade-scale battery life in intermittent-sensing applications |
| On-chip analog comparator | Supports slope ADC using Timer_A and CAOUT - eliminates need for external ADC in simple threshold-detection systems |
| Dual-clock domain architecture | Independent ACLK (32 kHz), SMCLK (up to 16 MHz), and MCLK (CPU clock) allow precise power/performance tradeoffs |
| Integrated bootstrap loader (BSL) | UART-based flash programming via P1.1/P2.2 - enables field firmware updates without JTAG hardware |
| Programmable I/O with pullup/down | All 16 GPIO pins support software-configurable weak pullup or pulldown - reduces external component count |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central controller managing sensor readout, slope ADC for analog sensors, low-power sleep/wake scheduling, and UART-based BSL firmware updates. Use Value: 0.1 μA LPM4 current extends CR2032 battery life beyond 5 years; integrated comparator eliminates discrete ADC cost. |
Use Scenario: Wearable pulse oximeter requiring low-noise analog front-end and real-time signal processing. IC Role / Device Role / Timing Role: Analog signal conditioner (via Comparator_A+), timer-synchronized LED drive control, and SPI/I²C peripheral management. Use Value: Sub-1μs wake-up ensures timely response to physiological events; 16-bit precision supports accurate saturation calculation. |
| Smart Utility Meter | Industrial Condition Monitor |
Use Scenario: Battery-backed electricity meter logging voltage/current waveforms and communicating via PLC or NB-IoT. IC Role / Device Role / Timing Role: Real-time waveform sampling trigger, brownout detection, secure flash update handler, and RTC synchronization via ACLK. Use Value: Brownout detector prevents corrupted flash writes during grid fluctuations; calibrated DCO ensures timing accuracy without external crystal. |
Use Scenario: Vibration/temperature monitor mounted on rotating machinery with periodic wireless telemetry bursts. IC Role / Device Role / Timing Role: Wake-on-interrupt controller for accelerometer data acquisition, slope ADC for analog sensor conditioning, and watchdog supervision. Use Value: LPM3 (0.7 μA) enables long-duration monitoring between bursts; Timer_A3 CCR interrupts ensure deterministic sampling intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2121IRGER | 4KB flash, 256B RAM, same package and pinout | Requires larger code footprint or future firmware expansion headroom | Select when application logic exceeds 2KB or requires additional RAM for buffering |
| MSP430G2553IPW28 | 2KB flash, 512B RAM, 28-pin TSSOP, enhanced USCI (UART/SPI/I²C) | Needs serial communication peripherals beyond basic UART BSL | Choose when I²C sensor integration or multi-protocol host interface is required |
Compared with MSP430F2111IRGER, the MSP430F2121IRGER offers double flash and RAM in identical form factor for scalability, while the MSP430G2553IPW28 trades QFN compactness for richer serial connectivity and higher RAM - neither is pin-compatible, but both serve adjacent low-power MCU roles with distinct peripheral trade-offs.
Availability
MSP430F2111IRGER is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meters, and industrial condition monitors requiring stable component supply across extended production lifecycles.
Supply support for MSP430F2111IRGER 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 90 years of innovation in low-power design.
The MSP430F21x1 series targets ultra-low-power sensor interface and portable measurement applications, emphasizing sub-μA sleep currents, fast wake-up, and integrated analog peripherals to minimize system-level BOM and power consumption.
FAQ
What is the maximum operating frequency of the MSP430F2111IRGER?
The MSP430F2111IRGER supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V, with factory-calibrated DCO settings at 1/8/12/16 MHz. At lower supply voltages (e.g., 2.2 V), the maximum reliable frequency drops to 6 MHz per TI's recommended operating conditions - all timing-critical operations must respect these voltage-dependent limits to ensure functional integrity of the MSP430F2111IRGER.
Does the MSP430F2111IRGER include hardware UART support?
No, the MSP430F2111IRGER does not integrate a dedicated UART peripheral. Serial communication is implemented via software UART using Timer_A outputs and GPIO pins, or through its bootstrap loader (BSL) which uses P1.1 (TX) and P2.2 (RX) for firmware updates. For full hardware UART, SPI, or I²C, designers should consider later MSP430 generations like the G2xx or F5xx families - the MSP430F2111IRGER relies on bit-banged or timer-assisted serial protocols.
How is the analog comparator used for slope ADC in the MSP430F2111IRGER?
The MSP430F2111IRGER's Comparator_A+ module generates CAOUT transitions that trigger Timer_A3 capture events; by charging a capacitor linearly and comparing against input voltage, the time between edges yields digital values proportional to analog input - this slope ADC method requires no external components and is fully implemented in firmware using CAOUT, TA0, and TACCR0. It is a core capability of the MSP430F2111IRGER for low-cost sensor digitization.
What are the key differences between MSP430F2111IRGER and MSP430F2111IPW?
The MSP430F2111IRGER (24-pin QFN/RGE) and MSP430F2111IPW (20-pin TSSOP/PW) share identical silicon functionality, memory, and electrical specifications but differ in package type, pin count, and thermal performance. The RGE package provides better thermal dissipation via its exposed pad and supports higher I/O density, while the PW package offers easier prototyping with through-hole-compatible footprints. Pin mappings are not interchangeable - the MSP430F2111IRGER has four additional pins (including dedicated TEST and NC positions) not present on the PW variant.
Is the MSP430F2111IRGER qualified for automotive applications?
No, the MSP430F2111IRGER is specified for industrial temperature range (–40°C to 85°C) and is not AEC-Q100 qualified. While it meets functional requirements for some automotive subsystems (e.g., cabin sensors), Texas Instruments does not certify this device for safety-critical or under-hood use. For automotive-grade alternatives, engineers should evaluate the MSP430FR5969 or MSP430FR6989, which offer extended temperature support, enhanced diagnostics, and formal automotive qualification - the MSP430F2111IRGER remains targeted at industrial and consumer portable applications.
MSP430F2111IRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430F2xx
- 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:
- 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:
MSP430F2111IRGER FAQ
1.How can I place an order for MSP430F2111IRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2111IRGER 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 MSP430F2111IRGER reliable?
The price and inventory of MSP430F2111IRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2111IRGER is usually 5 days.
3.What payment methods are accepted for MSP430F2111IRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2111IRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2111IRGER?
MSP430F2111IRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2111IRGER 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 MSP430F2111IRGER?
For technical support, including MSP430F2111IRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2111IRGER requirements.
6.How does Aetrix verify that MSP430F2111IRGER is sourced from the original manufacturer or authorized distributors?
All MSP430F2111IRGER 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 MSP430F2111IRGER meets industry standards.
7.What is the process for return or replacement of MSP430F2111IRGER?
All MSP430F2111IRGER units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2111IRGER, 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 MSP430F2111IRGER part is unused and in its original packaging.
Return procedure for MSP430F2111IRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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