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Texas Instruments MSP430FR2111IPW16
- Part No.:
- MSP430FR2111IPW16
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR2111IPW16.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,001
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Product details
Overview
MSP430FR2111IPW16 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 temperature sensor. 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 smoke detectors and door/window sensors.
For engineers reviewing the MSP430FR2111IPW16 datasheet, MSP430FR2111IPW16 pinout, MSP430FR2111IPW16 application, or MSP430FR2111IPW16 equivalent, key selection criteria include FRAM endurance (1015 write cycles), capacitive touch I/O capability across all 12 pins, RTC support in LPM3.5 with 32.768-kHz crystal, and eUSCI_A supporting UART/IrDA/SPI.
Technical Context
The MSP430FR2111IPW16 integrates a 16-MHz digitally controlled oscillator (DCO) with FLL for ±1% accuracy at room temperature, paired with REFO (32 kHz), VLO (10 kHz), and LFXT (32.768 kHz crystal) clock sources. Its power management module enables sub-10 µs wake-up from LPMs to active mode.
It features a unified FRAM memory architecture supporting simultaneous read/write, ECC protection, and configurable write protection. The ADC delivers 200 ksps sampling with internal 1.5-V reference and sample-and-hold, while the enhanced comparator includes a programmable 6-bit DAC for reference voltage generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator; enables high code efficiency and low-cycle instruction execution |
| FRAM Size | 3.75 KB program/data storage with 1015 write endurance-eliminates flash wear-out concerns in data-logging applications |
| RAM Size | 1 KB SRAM for runtime variables and stack; supports fast context switching in interrupt-driven firmware |
| ADC Resolution | 10-bit SAR ADC with 8 single-ended channels and 200 ksps sampling-sufficient for analog sensor interfacing in portable health devices |
| Low-Power Modes | LPM3.5 draws 1 µA with RTC + 32.768-kHz crystal active; LPM4.5 draws 34 nA-enables multi-year battery life in wireless sensors |
| Operating Voltage | 1.8 V to 3.6 V range-compatible with coin-cell (e.g., CR2032) and 2×AA/AAA battery systems without external regulators |
| Capacitive Touch I/O | All 12 GPIOs support capacitive touch sensing-enables direct integration of touch buttons without external controllers |
Pinout & Package
TSSOP-16 package (5 mm × 4.4 mm) with 12 general-purpose I/O pins, dual power rails (DVCC/DVSS), and dedicated JTAG/Spy-Bi-Wire debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7, P2.0–P2.3 | General-purpose I/O with capacitive touch capability | All 12 pins support GPIO, interrupt wake-up, and CSD-no dedicated touch controller required |
| DVCC / DVSS | Main power supply pair | Single 1.8–3.6 V rail powers digital and analog modules; requires 4.7–10 µF + 0.1 µF decoupling |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, and debug data I/O | Combined function enables compact 2-wire Spy-Bi-Wire programming and debugging |
| TEST/SBWTCK | Debug clock input | Enables low-pin-count in-circuit debugging without full JTAG header |
| XIN / XOUT | 32.768-kHz crystal oscillator terminals | Supports RTC operation in LPM3.5 with 1 µA current-critical for time-stamped sensor logging |
| A0–A7, Veref+, Veref− | ADC analog inputs and reference terminals | 8-channel 10-bit ADC accepts single-ended signals referenced to internal or external VREF |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 3.75 KB unified memory with ECC, write protection, and 1015 endurance-ideal for frequent sensor data writes |
| Ultra-Low-Power RTC | Real-time clock operational in LPM3.5 at 1 µA using 32.768-kHz crystal-enables calendar-based wake-up and timestamping |
| Integrated Temperature Sensor | On-die sensor calibrated to ±3°C accuracy-provides system thermal monitoring without external components |
| eUSCI_A Serial Interface | UART, IrDA, and SPI modes with independent clocking-supports BLE module communication or wired diagnostics |
| Enhanced Comparator (eCOMP0) | Includes 6-bit DAC for programmable reference and hysteresis-replaces external comparator + reference IC in threshold detection |
Applications
| Smoke and Heat Detectors | Door and Window Sensors |
|---|---|
Use Scenario: Battery-powered standalone detector with periodic smoke particulate sampling and thermal rise monitoring. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion algorithm, managing LPM3.5 RTC wake-ups every 30 seconds, and triggering alarm via GPIO. Use Value: 34 nA LPM4.5 shutdown extends CR123A battery life beyond 10 years; integrated temp sensor eliminates BOM cost of discrete thermistor. | Use Scenario: Wireless contact sensor mounted on residential entry points, reporting open/close events via sub-GHz RF link. IC Role / Device Role / Timing Role: System controller handling magnetic reed switch debouncing, capacitive touch wake-up, and low-power RF transceiver control. Use Value: All 12 I/Os support capacitive touch-enables dual-mode operation (contact + proximity); FRAM stores tamper logs without wear-out. |
| Lighting Sensors | Portable Health Devices |
Use Scenario: Ambient light intensity measurement in smart LED fixtures for adaptive dimming control. IC Role / Device Role / Timing Role: ADC acquisition engine reading photodiode output, applying calibration coefficients from FRAM, and updating PWM duty cycle. Use Value: 200 ksps ADC sampling ensures accurate integration over flickering AC-powered light sources; 1.5-V internal reference stabilizes readings across voltage droop. | Use Scenario: Wrist-worn fitness tracker measuring heart rate via PPG and motion via accelerometer. IC Role / Device Role / Timing Role: Data aggregator collecting ADC samples, running motion algorithms in RAM, and storing session history in FRAM before Bluetooth upload. Use Value: 1015 FRAM write cycles enable continuous 24/7 sensor logging; 120 µA/MHz active current minimizes battery drain during signal processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2110IPW16 | 2 KB FRAM, same 1KB RAM, identical peripherals and pinout | Lower memory capacity limits firmware complexity and data buffering depth | Select when application firmware fits within 2 KB and cost sensitivity outweighs future scalability needs |
| MSP430FR2311IPW16 | 3.75 KB FRAM, 2 KB RAM, added 12-bit ADC, enhanced timer, and more GPIO | Higher-resolution ADC and extra RAM support advanced sensor fusion and larger protocol stacks | Choose when upgrading from MSP430FR2111IPW16 for increased analog precision or memory headroom |
Compared with MSP430FR2110IPW16, the MSP430FR2111IPW16 provides 1.75 KB additional FRAM for firmware expansion or extended data logging; versus MSP430FR2311IPW16, it trades 1 KB RAM and 12-bit ADC capability for lower unit cost and proven qualification in cost-sensitive consumer sensing.
Availability
MSP430FR2111IPW16 is available at Aetrix Electronics and suitable for smoke and heat detectors, door and window sensors, and portable health and fitness devices requiring stable component supply and long-term production continuity.
Supply support for MSP430FR2111IPW16 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 company delivering analog and embedded processing solutions with leadership in low-power design and precision analog integration.
The MSP430FR21xx product line targets ultra-low-power sensing applications, emphasizing FRAM-based data logging, capacitive touch interfaces, and extended battery life in compact form factors.
FAQ
What is the maximum operating frequency of the MSP430FR2111IPW16?
The MSP430FR2111IPW16 features a 16-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL), enabling a maximum CPU clock frequency of 16 MHz. This allows real-time processing of sensor data while maintaining ultra-low-power operation through dynamic clock gating and multiple low-power modes. The DCO achieves ±1% accuracy at room temperature using the on-chip reference.
Does the MSP430FR2111IPW16 support hardware real-time clock functionality?
Yes, the MSP430FR2111IPW16 includes a dedicated 16-bit RTC counter that operates in LPM3.5 with a 32.768-kHz crystal, drawing only 1 µA. It supports calendar mode, alarm interrupts, and automatic leap-year correction. The RTC remains functional while the rest of the system is powered down, enabling precise time-stamping of sensor events without external RTC ICs.
How many analog input channels does the MSP430FR2111IPW16 ADC support?
The MSP430FR2111IPW16 integrates an 8-channel, 10-bit successive approximation register (SAR) ADC capable of single-ended measurements. Channels A0–A7 map directly to GPIO pins P1.0–P1.7 and P2.0–P2.3, allowing flexible sensor routing. The ADC supports 200 ksps sampling rate and uses an internal 1.5-V reference or external VREF inputs for improved accuracy.
What debug interface does the MSP430FR2111IPW16 use?
The MSP430FR2111IPW16 uses the Spy-Bi-Wire (SBW) interface, implemented on pins TEST/SBWTCK and RST/NMI/SBWTDIO. This 2-wire protocol provides full JTAG-level debug access-including breakpoint setting, register inspection, and flash programming-with minimal PCB footprint. SBW is supported by TI's MSP-FET and Code Composer Studio IDE.
Is the MSP430FR2111IPW16 pin-compatible with other devices in the FR21xx family?
Yes, the MSP430FR2111IPW16 in the TSSOP-16 (PW16) package shares identical pinout and electrical characteristics with MSP430FR2110IPW16, MSP430FR2100IPW16, and MSP430FR2000IPW16. This enables drop-in replacement within the same package variant, though firmware must account for differences in FRAM size (3.75 KB vs. 2 KB/1 KB/0.5 KB) and ADC availability.
MSP430FR2111IPW16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
MSP430FR2111IPW16 FAQ
1.How can I place an order for MSP430FR2111IPW16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2111IPW16 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 MSP430FR2111IPW16 reliable?
The price and inventory of MSP430FR2111IPW16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2111IPW16 is usually 5 days.
3.What payment methods are accepted for MSP430FR2111IPW16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2111IPW16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2111IPW16?
MSP430FR2111IPW16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2111IPW16 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 MSP430FR2111IPW16?
For technical support, including MSP430FR2111IPW16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2111IPW16 requirements.
6.How does Aetrix verify that MSP430FR2111IPW16 is sourced from the original manufacturer or authorized distributors?
All MSP430FR2111IPW16 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 MSP430FR2111IPW16 meets industry standards.
7.What is the process for return or replacement of MSP430FR2111IPW16?
All MSP430FR2111IPW16 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2111IPW16, 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 MSP430FR2111IPW16 part is unused and in its original packaging.
Return procedure for MSP430FR2111IPW16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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