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Texas Instruments MSP430FR59941IPM
- Part No.:
- MSP430FR59941IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR59941IPM.pdf
- Description:
- IC MCU 16BIT 256KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,404
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Product details
Overview
MSP430FR59941IPM from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 256KB FRAM, 8KB RAM, integrated low-energy accelerator (LEA), 12-bit ADC with 20 external channels, and dual eUSCI_A/eUSCI_B serial interfaces. It operates from 1.8 V to 3.6 V and supports real-time clock (RTC) in LPM3.5 mode at 350 nA - deployed in wearable fitness monitors and grid infrastructure sensing nodes.
For engineers reviewing the MSP430FR59941IPM datasheet, MSP430FR59941IPM pinout, MSP430FR59941IPM application, or MSP430FR59941IPM equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LEA-accelerated FFT performance, capacitive-touch I/O support without external components, and I²C bootloader capability.
Technical Context
The MSP430FR59941IPM implements a CPUXV2 core with 16 registers and integrates a dedicated Low-Energy Accelerator (LEA) subsystem sharing 4KB of RAM - enabling independent execution of signal-processing kernels like 256-point complex FFT. Its clock system includes DCO, LFXT (32 kHz crystal), and HFXT (up to 24 MHz) with programmable dividers.
It features six 16-bit timers (including Timer_A with up to three capture/compare registers and Timer_B with two instantiations), 32-/16-bit CRC engines, AES-256 encryption coprocessor, and memory protection unit (MPU) with IP encapsulation - all operating under seven low-power modes (LPM0–LPM4.5) with sub-µA standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz - enables deterministic real-time control with minimal power overhead. |
| Nonvolatile Memory | 256 KB FRAM + 0.5 KB information memory - supports wear-leveling-free firmware updates and data logging. |
| RAM | 8 KB total, including 4 KB shared with LEA - allows concurrent CPU/accelerator operation for sensor fusion tasks. |
| ADC | 12-bit SAR ADC with 20 external inputs, window comparator, internal reference - suitable for battery-powered analog sensing. |
| Low-Power Modes | LPM3.5 (RTC active): 350 nA; LPM4.5 (shutdown): 45 nA - extends multi-year operation on coin-cell batteries. |
| Serial Interfaces | 4 × eUSCI_A (UART/IrDA/SPI); 4 × eUSCI_B (I²C/SPI) - supports multi-sensor I²C buses and UART-based host communication. |
| Security | AES-256 coprocessor + MPU with IP encapsulation - protects firmware and sensitive data against physical and logical attacks. |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / JTAG test data I/O | Single-pin multifunction interface for reset assertion, NMI triggering, and Spy-Bi-Wire debugging - eliminates need for separate debug header. |
| P1.0–P1.7 | General-purpose I/O with capacitive touch | All pins support CTSIO without external components - enables direct integration of touch buttons or sliders in space-constrained wearables. |
| P2.0/P2.1 | BSLTX/BSLRX (UART BSL) | Dedicated UART bootloader pins - allow field firmware updates via simple serial connection without JTAG hardware. |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768 kHz crystal for RTC operation in LPM3.5 - achieves 350 nA real-time timekeeping with calendar and alarm functions. |
| P5.4–P5.7 | eUSCI_A2 TX/RX/CLK/STE | Full-duplex SPI master/slave interface - supports high-speed sensor data acquisition or display driver control. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM endurance | 10¹⁵ write cycles - eliminates flash wear-out concerns in data-logging applications requiring frequent writes. |
| LEA subsystem | 40× faster 256-point FFT vs. Cortex-M0+ - enables real-time vibration analysis or ECG feature extraction without external DSP. |
| Capacitive-touch I/O | All GPIO pins support CTSIO - reduces BOM cost and PCB area by removing external touch controller ICs. |
| Ultra-low-power RTC | 350 nA in LPM3.5 with 3.7-pF crystal - delivers precise timekeeping for metering or scheduling while preserving battery life. |
| I²C bootloader | BSLSDA/BSLSCL on P1.6/P1.7 - permits firmware updates over existing I²C bus, avoiding dedicated programming connectors. |
Applications
| Grid Infrastructure Monitoring | Wearable Fitness Tracking |
|---|---|
Use Scenario: Battery-powered smart meter endpoint collecting voltage/current harmonics and reporting via LPWAN. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, managing FRAM-based waveform buffers, and maintaining secure time-stamped logs. Use Value: 256KB FRAM enables storage of >1 hour of 16-kS/s sampled waveforms; LEA accelerates harmonic analysis in real time. | Use Scenario: Compact wrist-worn activity monitor measuring heart rate, motion, and skin temperature. IC Role / Device Role / Timing Role: Central sensor hub aggregating data from optical, accelerometer, and thermistor sensors; RTC schedules periodic wake-ups. Use Value: 45 nA LPM4.5 shutdown extends CR2032 battery life beyond 12 months; capacitive-touch I/O enables bezel-less UI. |
| Factory Automation Sensor Node | Building Automation Controller |
Use Scenario: Wireless vibration sensor node on rotating machinery, performing edge FFT analysis before transmission. IC Role / Device Role / Timing Role: Real-time signal processor using LEA for spectral analysis; FRAM stores calibration coefficients and fault history. Use Value: LEA executes 256-point FFT in <25 µs - enabling sub-100-ms response to bearing defects without cloud dependency. | Use Scenario: Occupancy-aware HVAC controller integrating PIR, ambient light, and CO₂ sensors in commercial lighting fixtures. IC Role / Device Role / Timing Role: Low-power coordinator managing I²C sensor network, driving LED dimming via PWM, and logging occupancy patterns. Use Value: 350 nA RTC operation ensures accurate scheduling of ventilation cycles across multi-year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5994IPM | Same FRAM/RAM/LEA specs but UART BSL (P2.0/P2.1); no I²C BSL. | Preferred where serial debug and firmware update use UART infrastructure already present. | Select when UART-based field updates are required and I²C bus is reserved for sensors. |
| MSP430FR5964IPM | Identical package and peripherals but lacks LEA subsystem; 256KB FRAM, 8KB RAM, same I²C BSL. | Suitable for cost-sensitive applications needing FRAM and security but no intensive signal processing. | Choose when FFT or matrix math acceleration is unnecessary and BOM cost reduction is critical. |
Compared with MSP430FR5994IPM, the MSP430FR59941IPM trades UART BSL for I²C BSL - simplifying integration into I²C-dominated sensor hubs. Against MSP430FR5964IPM, it adds LEA for embedded signal processing at identical power and memory footprint.
Availability
MSP430FR59941IPM is available at Aetrix Electronics and suitable for grid infrastructure monitoring, wearable fitness tracking, and building automation requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR59941IPM 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The MSP430FR599x product line targets ultra-low-power sensing and measurement applications - combining FRAM nonvolatility, sub-µA sleep modes, and hardware acceleration to enable battery-operated edge intelligence.
FAQ
What is the maximum operating frequency of the MSP430FR59941IPM?
The MSP430FR59941IPM supports a maximum CPU clock frequency of 16 MHz using its factory-trimmed DCO or external HFXT crystal. This frequency is fully operational across the full 1.8 V to 3.6 V supply range and enables deterministic real-time execution of control loops and signal processing routines within the MSP430FR59941IPM architecture.
Does the MSP430FR59941IPM support capacitive touch sensing on all I/O pins?
Yes, the MSP430FR59941IPM supports capacitive-touch sensing on every GPIO pin without external components - including P1.x through P8.x and PJ.x ports. This capability is implemented via integrated CTSIO hardware and is confirmed in the device's functional block diagram and pin attribute tables for the LQFP-64 (PM) package.
What bootloader interface does the MSP430FR59941IPM provide?
The MSP430FR59941IPM includes an I²C bootloader (BSL) accessible on P1.6 (BSLSDA) and P1.7 (BSLSCL). Unlike the UART BSL variant (MSP430FR5994IPM), this configuration allows firmware updates over an existing I²C bus - eliminating the need for dedicated UART lines or debug headers in space-constrained designs.
How much FRAM and RAM does the MSP430FR59941IPM integrate?
The MSP430FR59941IPM integrates 256 KB of ferroelectric RAM (FRAM) for program and data storage, plus 0.5 KB of dedicated information memory, and 8 KB of SRAM - of which 4 KB is shared with the Low-Energy Accelerator (LEA) subsystem. This memory architecture is explicitly specified in the Device Comparison table for the MSP430FR59941IPM variant.
What is the lowest power consumption mode supported by the MSP430FR59941IPM?
The MSP430FR59941IPM achieves 45 nA in LPM4.5 (shutdown mode) with RAM retention - the lowest power state documented in its electrical characteristics. This mode disables all clocks and peripherals while preserving SRAM contents, making it ideal for long-duration sleep periods in battery-powered applications using the MSP430FR59941IPM.
MSP430FR59941IPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 17x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR59941IPM FAQ
1.How can I place an order for MSP430FR59941IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR59941IPM 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 MSP430FR59941IPM reliable?
The price and inventory of MSP430FR59941IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR59941IPM is usually 5 days.
3.What payment methods are accepted for MSP430FR59941IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR59941IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR59941IPM?
MSP430FR59941IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR59941IPM 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 MSP430FR59941IPM?
For technical support, including MSP430FR59941IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR59941IPM requirements.
6.How does Aetrix verify that MSP430FR59941IPM is sourced from the original manufacturer or authorized distributors?
All MSP430FR59941IPM 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 MSP430FR59941IPM meets industry standards.
7.What is the process for return or replacement of MSP430FR59941IPM?
All MSP430FR59941IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR59941IPM, 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 MSP430FR59941IPM part is unused and in its original packaging.
Return procedure for MSP430FR59941IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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