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Texas Instruments MSP430FR2111IRLLR
- Part No.:
- MSP430FR2111IRLLR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2111IRLLR.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,116
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Product details
Overview
MSP430FR2111IRLLR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 3.75KB nonvolatile program memory, 1KB RAM, 8-channel 10-bit ADC, and integrated eCOMP comparator. It operates from 1.8 V to 3.6 V, achieves 120 µA/MHz active current, and supports LPM3.5 (1 µA) and LPM4.5 (34 nA) for battery-powered sensing applications like smoke detectors and door sensors.
For engineers reviewing the MSP430FR2111IRLLR datasheet, MSP430FR2111IRLLR pinout, MSP430FR2111IRLLR application, or MSP430FR2111IRLLR equivalent, key selection criteria include FRAM endurance (1015 write cycles), capacitive touch I/O capability across all 12 GPIOs, RTC support in deep sleep, and VQFN-24 (3 mm × 3 mm) packaging for space-constrained designs.
Technical Context
The MSP430FR2111IRLLR integrates a 16-bit RISC CPU with constant generator and 16-MHz DCO+FLL clock system delivering ±1% accuracy at room temperature. Its memory architecture unifies FRAM for code, constants, and data storage with built-in ECC and configurable write protection.
Peripherals include Timer_B3 with three capture/compare registers (CCR0 internal only; CCR1/CCR2 externally accessible), eUSCI_A supporting UART/IrDA/SPI, and an ADC with 200 ksps sample rate, internal 1.5-V reference, and integrated temperature sensor - all operating within the same 1.8–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator; enables high code efficiency and low-cycle-count execution for real-time sensor firmware. |
| FRAM Size | 3.75 KB unified nonvolatile memory; supports unlimited read/write cycles (1015 endurance) without wear leveling or erase delays. |
| RAM Size | 1 KB SRAM; provides fast volatile data storage for runtime variables and stack during active and LPM modes. |
| ADC Resolution | 10-bit SAR ADC with 8 single-ended channels; delivers 200 ksps sampling for analog sensor interfacing (e.g., thermistors, light sensors). |
| Low-Power Mode LPM3.5 | 1 µA with 32.768-kHz crystal RTC active; enables precise timekeeping and wake-up events while preserving backup memory contents. |
| Supply Voltage Range | 1.8 V to 3.6 V; compatible with coin-cell (e.g., CR2032) and single Li-ion battery systems without external regulators. |
| Package | VQFN-24 (RLL), 3 mm × 3 mm; surface-mount footprint optimized for compact PCB layouts in portable electronics. |
Pinout & Package
VQFN-24 (RLL) package with 0.4-mm pitch, 3 mm × 3 mm body size, and exposed thermal pad. Pin 1 marked via top-side dot; pins 6, 9, 10, 12, 18, 21, 22, 24 are NC (not connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / UCA0STE / SMCLK / C0 / A0 / Veref+ | Multi-function I/O | Primary SPI slave select or ADC channel 0 input; also supplies SMCLK output and comparator reference positive. |
| P1.1 / UCA0CLK / ACLK / C1 / A1 | Multi-function I/O | UART/SPI clock or ADC channel 1 input; outputs ACLK for low-frequency peripherals and comparator input C1. |
| RST/NMI/SBWTDIO | Debug & reset | Combined reset input, non-maskable interrupt, and Spy-Bi-Wire data I/O for programming and debugging. |
| DVCC / DVSS | Power pair | Single 1.8–3.6 V supply domain powering digital and analog modules; requires 4.7–10 µF + 0.1 µF decoupling per TI layout guidelines. |
| P2.7 / TB0CLK / XIN | Oscillator input | Accepts external 32.768-kHz crystal for RTC or feeds internal TB0 timer clock source. |
| VREF+ | Analog reference | Internal 1.5-V reference output; used as ADC reference or comparator reference voltage source. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 3.75 KB unified memory with 1015 write endurance, zero write latency, and built-in ECC - eliminates flash erase bottlenecks in data-logging applications. |
| Capacitive Touch I/O | All 12 GPIOs support capacitive touch sensing without external components, enabling cost-effective human interface design in appliances and security sensors. |
| Ultra-Low-Power RTC | Real-time clock operational in LPM3.5 at 1 µA using 32.768-kHz crystal - maintains timekeeping and alarm interrupts during extended battery sleep. |
| Integrated Temperature Sensor | On-die sensor calibrated to ±3°C accuracy; provides direct thermal monitoring for battery packs and environmental sensors without external ICs. |
| eUSCI_A Serial Interface | Configurable UART/IrDA/SPI peripheral with independent clock domains - supports simultaneous communication with BLE modules and sensor hubs. |
Applications
| Smoke and Heat Detectors | Door and Window Sensors |
|---|---|
|
Use Scenario: Battery-powered standalone detector with periodic smoke chamber sampling and thermal rise detection. IC Role / Device Role / Timing Role: Main controller executing sensor polling, alarm logic, and wireless alert transmission via UART-connected RF module. Use Value: LPM4.5 current of 34 nA extends 10-year battery life; FRAM enables reliable event logging without flash wear-out. |
Use Scenario: Wireless contact sensor mounted on entry points, reporting open/close state to smart home hub. IC Role / Device Role / Timing Role: Low-power state machine managing magnetic reed switch input, capacitive touch wake-up, and BLE advertisement bursts. Use Value: All 12 GPIOs support capacitive touch - allows dual-mode operation (contact + proximity) without added BOM cost. |
| Appliance Battery Packs | Lighting Sensors |
|
Use Scenario: Smart battery management unit monitoring cell voltage, temperature, and charge cycles in cordless power tools. IC Role / Device Role / Timing Role: Data logger capturing ADC samples from voltage dividers and thermistor network, storing history in FRAM. Use Value: 1015-cycle FRAM endurance ensures >20 years of daily logging at 100 samples/day without memory degradation. |
Use Scenario: Ambient light sensor in LED driver control loop, adjusting brightness based on photodiode input. IC Role / Device Role / Timing Role: Analog front-end processor converting photodiode current to digital value via 10-bit ADC and driving PWM dimming signal. Use Value: Internal 1.5-V reference and 200 ksps ADC enable stable, high-speed light measurement across 1.8–3.6 V supply range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2111IPW16 | TSSOP-16 package (5 mm × 4.4 mm); 12 GPIOs; identical FRAM/RAM/peripherals. | Larger footprint; less suitable for ultra-compact designs but easier manual soldering and probing. | Select when board space permits and hand-assembly or debug access is prioritized over miniaturization. |
| MSP430FR2110IRLLR | Same VQFN-24 package; reduced FRAM (2 KB) and identical RAM (1 KB); otherwise identical peripheral set. | Lower memory capacity limits firmware complexity and data logging depth; suitable for simpler sensor nodes. | Choose when application firmware fits within 2 KB and cost reduction is critical - no PCB redesign required. |
Compared with MSP430FR2111IPW16, the MSP430FR2111IRLLR saves 3.2 mm² board area and improves thermal performance via exposed pad, while MSP430FR2110IRLLR reduces memory cost by 47% but constrains firmware scalability.
Availability
MSP430FR2111IRLLR is available at Aetrix Electronics and suitable for smoke detectors, door/window sensors, and appliance battery packs requiring stable component supply, long-term lifecycle assurance, and consistent FRAM-based firmware update capability.
Supply support for MSP430FR2111IRLLR 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 electronics.
The MSP430FR21xx product line targets ultra-low-power sensing applications, combining FRAM memory, integrated analog peripherals, and aggressive power management to extend battery life in portable and maintenance-free devices.
FAQ
What is the maximum operating frequency of the MSP430FR2111IRLLR?
The MSP430FR2111IRLLR features a digitally controlled oscillator (DCO) with frequency-locked loop (FLL) capable of generating up to 16 MHz system clock. This maximum frequency is achievable across the full 1.8–3.6 V supply range and enables real-time processing of sensor data at high throughput without external crystals.
Does the MSP430FR2111IRLLR support hardware UART communication?
Yes, the MSP430FR2111IRLLR includes one enhanced USCI_A (eUSCI_A) module that supports UART mode with full-duplex operation, programmable baud rates, and automatic LIN break detection. Pins P1.2 (UCA0RXD) and P1.3 (UCA0TXD) are dedicated to this function and can be remapped via software configuration.
How many analog input channels does the MSP430FR2111IRLLR ADC support?
The MSP430FR2111IRLLR integrates an 8-channel, 10-bit successive approximation register (SAR) ADC. Channels A0 through A7 map directly to GPIO pins P1.0–P1.7 and P2.0–P2.1, supporting single-ended measurements with internal 1.5-V reference or external Veref+/- inputs.
Is the MSP430FR2111IRLLR pin-compatible with other devices in the MSP430FR21xx family?
The MSP430FR2111IRLLR shares identical pinout and signal mapping with MSP430FR2110IRLLR, MSP430FR2100IRLLR, and MSP430FR2000IRLLR in the VQFN-24 (RLL) package. However, functional differences exist - notably the absence of ADC on MSP430FR2000 - so firmware must verify peripheral availability before migration.
What debug interface does the MSP430FR2111IRLLR use?
The MSP430FR2111IRLLR uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging, implemented on pins TEST/SBWTCK (Pin 1, RLL) and RST/NMI/SBWTDIO (Pin 2, RLL). This interface is fully supported by MSP-FET and Code Composer Studio, requiring no JTAG header footprint.
MSP430FR2111IRLLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 3.75KB (3.75K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2111IRLLR FAQ
1.How can I place an order for MSP430FR2111IRLLR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2111IRLLR 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 MSP430FR2111IRLLR reliable?
The price and inventory of MSP430FR2111IRLLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2111IRLLR is usually 5 days.
3.What payment methods are accepted for MSP430FR2111IRLLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2111IRLLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2111IRLLR?
MSP430FR2111IRLLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2111IRLLR 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 MSP430FR2111IRLLR?
For technical support, including MSP430FR2111IRLLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2111IRLLR requirements.
6.How does Aetrix verify that MSP430FR2111IRLLR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2111IRLLR 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 MSP430FR2111IRLLR meets industry standards.
7.What is the process for return or replacement of MSP430FR2111IRLLR?
All MSP430FR2111IRLLR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2111IRLLR, 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 MSP430FR2111IRLLR part is unused and in its original packaging.
Return procedure for MSP430FR2111IRLLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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