MSP430FR59941REV - 16MHz 256KB FRAM MCU with LEA | TI
MPN: MSP430FR59941REV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.34 | $3,340.00 |
Drop-in alternatives for MSP430FR59941REV — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MSP430FR59941IPM
✅ Drop-In✓ In Stock
$5.35 / Unit
View Datasheet →MSP430FR5994IPNR
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →MSP430FR5994IPNR
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →MSP430FR5964IPN
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
MSP430FR5989IPN
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
MSP430FR59941REV Maximum Ratings & Electrical Characteristics
| Core | MSP430 CPUXV2 16-bit RISC |
| Maximum Clock Frequency | 16 MHz |
| Non-Volatile Memory | 256KB FRAM (256K x 8) |
| SRAM | 8KB |
| Signal Processing Accelerator | Low-Energy Accelerator (LEA) |
| Security Accelerator | AES hardware |
| ADC Resolution | 12-bit |
| Comparator | Yes |
| DMA Channels | Yes (DMA controller) |
| General-Purpose I/O | 68 I/O |
| Serial Interfaces | eUSCI (UART/SPI/I2C) |
| Data Bus Width | 16-bit |
| Family | MSP430FR599x (FRAM MCU) |
| Package (IPNR ordering code) | 80-LQFP (12 x 12 mm) |
| Mounting Type | Surface Mount |
MSP430FR59941REV [data_needed: package of rev suffix] Pin Configuration Guide
Complete pinout information for MSP430FR59941REV ([data_needed: package of rev suffix] package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
![[data_needed: package of rev suffix] package pinout diagram for MSP430FR59941REV](/assets/package-diagrams/default.svg?v=1788069619)
No detailed pinout data available for MSP430FR59941REV.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
MSP430FR59941REV is suitable for 6 applications: Smart Metering and Energy Monitoring, Industrial Vibration and Predictive Maintenance Sensing, Secure Battery-Powered IoT Sensor Nodes, Portable Medical and Health Monitoring Devices, Acoustic and Audio Signal Processing Nodes, Building Automation and HVAC Control.
Smart Metering and Energy Monitoring
The MSP430FR59941 fits smart-meter designs where the 12-bit ADC digitizes voltage and current waveforms and the LEA accelerator performs the FFT and FIR computation needed for harmonic analysis and RMS energy calculation. The LEA provides 40x the Cortex-M0+ DSP performance per the datasheet, so waveform analytics complete within the meter's power budget. The 256KB FRAM stores calibration tables and load profiles with byte-writable, wear-free logging - critical because meters log continuously for decades. eUSCI interfaces connect to communication modules (RF, PLC, UART) via DMA transfers that run while the CPU sleeps, keeping average current in the microamp range for battery-assisted designs.
Recommended
Industrial Vibration and Predictive Maintenance Sensing
Predictive-maintenance nodes sample accelerometer data with the MSP430FR59941's 12-bit ADC, stream samples to memory via DMA, and execute FFT spectrum analysis on the LEA to detect bearing-fault signatures. Because LEA math runs at reduced supply levels, the node sustains continuous monitoring at energy levels a CPU-based implementation cannot match - TI quantifies LEA at 40x Cortex-M0+ throughput. The 256KB FRAM buffers extended time-series captures and stores rolling event histories without wear limits, and the AES engine encrypts machine-health data before transmission over eUSCI-connected radios, securing factory-network telemetry end to end.
Recommended
Secure Battery-Powered IoT Sensor Nodes
For battery-operated IoT endpoints, the MSP430FR59941 combines MSP430 low-power modes with AES hardware encryption, so payloads are secured without burning CPU cycles in software crypto. The 256KB FRAM enables over-the-air firmware staging and frequent parameter logging - writes are byte-level and wear-free, unlike Flash-based MCUs. Sensor acquisition uses the 12-bit ADC and comparators with DMA, waking the CPU only for decisions. The eUSCI modules drive UART/SPI/I2C radios and sensor buses. TI's LaunchPad and MSP-TS430PN80B boards accelerate prototyping of the 80-pin LQFP footprint before panelized production layouts.
Recommended
Portable Medical and Health Monitoring Devices
Wearable and portable medical instruments benefit from the MSP430FR59941's combination of ultra-low-power active modes, 12-bit ADC for physiological signals (ECG, SpO2 photodiode currents), and LEA-accelerated filtering that removes baseline wander and motion artifacts in real time. TI states LEA executes FIR filtering at 40x Cortex-M0+ performance, enabling continuous artifact rejection at minimal energy cost, directly extending battery life. The 256KB FRAM retains patient configuration and calibration across battery changes without EEPROM, and the AES engine supports patient-data privacy requirements before data leaves the device over encrypted eUSCI links.
Recommended
Acoustic and Audio Signal Processing Nodes
The MSP430FR59941 serves acoustic applications such as sound-level loggers, leak detection, and keyword detection: the 12-bit ADC samples microphone inputs, and the LEA performs 256-point and larger FFTs efficiently - precisely the workload TI designed it for, claiming 40x Cortex-M0+ performance on FFT and FIR operations. The 8KB SRAM hosts LEA working buffers while the 256KB FRAM stores acoustic event logs for later retrieval. Comparators implement zero-crossing or threshold wake-up so the CPU sleeps until acoustic activity occurs, keeping quiescent draw near sleep-mode levels in always-listening installations.
Recommended
Building Automation and HVAC Control
In building controllers, the MSP430FR59941's 68 GPIO and eUSCI interfaces consolidate damper actuation, valve control, and sensor-bus communication in one MCU, while the 12-bit ADC reads NTC thermistors and pressure bridges directly. The 256KB FRAM logs runtime schedules and fault histories indefinitely without memory wear, and retains them through power outages - FRAM is non-volatile with byte-level writes. LEA acceleration optionally runs acoustic or airflow FFT diagnostics. The AES engine authenticates commands on eUSCI-connected bus transceivers, and DMA moves traffic while the CPU remains in a low-power standby state between events.
Recommended
Recommended Products Summary
Engineering reference data for MSP430FR59941REV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430FR59941IPM | MSP430FR5994IPNR | MSP430FR5994IPN | MSP430FR5964IPN | MSP430FR5989IPN |
|---|---|---|---|---|---|---|
| Package | 80-LQFP (12x12) per family data; REV suffix to verify | 80-LQFP (12x12) - same | 80-LQFP (12x12) - same | 80-LQFP (12x12) - same | 80-LQFP (12x12) - same | 80-LQFP (12x12) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| CPU / Frequency | MSP430 CPUXV2, 16 MHz | MSP430 CPUXV2, 16 MHz | MSP430 CPUXV2, 16 MHz | MSP430 CPUXV2, 16 MHz | MSP430 CPUXV2, 16 MHz | MSP430 CPUXV2, 16 MHz |
| FRAM | 256KB | 256KB | 256KB | 256KB | [DATA_NEEDED] | 128KB |
| SRAM | 8KB | 8KB | 8KB | 8KB | [DATA_NEEDED] | 2KB |
| LEA Accelerator | Yes (40x Cortex-M0+ DSP) | Yes | Yes | Yes | No | No |
| AES Accelerator | Yes | Yes | Yes | Yes | Yes | Yes |
| ADC / GPIO | 12-bit ADC, 68 I/O | 12-bit ADC, 68 I/O | 12-bit ADC, 68 I/O | 12-bit ADC, 68 I/O | 12-bit ADC, 68 I/O | 12-bit ADC, 74 I/O (some pins differ by package) |
Key Differentiators
- LEA signal-processing accelerator included (vs MSP430FR5964IPN)
- 256KB FRAM with wear-free byte writes (vs MSP430FR5989IPN)
- Same-die suffix flexibility for sourcing (vs MSP430FR59941IPM)
Design Notes
For the 80-pin LQFP (12 x 12 mm) footprint, follow the standard TI MSP430 LQFP land pattern with 0.5 mm pitch. Place the 100 nF decoupling capacitors for DVCC and AVCC within 2 mm of the corresponding pins, one per supply pair, plus bulk 10 uF at the regulator entry. Keep the analog supply domain (AVCC, ADC reference) separated from digital switching noise by a star connection. If using the internal 12-bit ADC with external reference, route the reference line short and guard it with ground.
Estimated: MSP430FR devices run active-mode current on the order of 100-300 uA/MHz class and sub-uA standby, but confirm exact figures in the MSP430FR599x datasheet (Rev. D) for your clocking configuration. Use the PMM core-voltage settings and route clock sources off FRAM-heavy loops during long computations - executing FFT code from SRAM while FRAM stays idle reduces active energy. Enable DMA-driven ADC sampling so the CPU sleeps between conversions rather than polling.
Confirm the ordering-code suffix before layout: MSP430FR59941REV, IPN, IPM, and IPNR denote different package/packing options of the same die, and pin counts can differ across the MSP430FR599x family (64-pin and 80-pin options exist). Verify against the Ordering Information table in the shared datasheet (Rev. D). Also note that MSP430FR5964 lacks the LEA - software using DSPLib LEA functions will not run on it. FRAM writes require no erase, but respect the wait-state behavior at the CPU frequency boundary documented in the datasheet.
Compliance Information
Compliance data was not present in the verified web data retrieved for this MPN. Confirm RoHS/REACH status on the TI product page quality section for the exact ordering code.
