MSP430FR59941IPM - 16MHz 256KB FRAM MCU | TI
MPN: MSP430FR59941IPM β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.18 | $7.18 |
| 10 | $6.8 | $68.00 |
| 100 | $6.2 | $620.00 |
| 500 | $5.75 | $2,875.00 |
| 1,000 | $5.35 | $5,350.00 |
Drop-in alternatives for MSP430FR59941IPM β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
MSP430FR5994IPMR
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$4.21 / Unit
View Datasheet βMSP430FR59641IPM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MSP430FR5964IPM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MSP430FR5969IPM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MSP430FR5968IPM
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MSP430FR59941IPM Maximum Ratings & Electrical Characteristics
| Core | MSP430 CPUXV2 (16-bit RISC) |
| Maximum CPU Frequency | 16 MHz |
| Non-Volatile Memory (FRAM) | 256 KB (256K x 8) |
| SRAM | 8 KB |
| Hardware Accelerator | LEA (Low-Energy Accelerator), AES256 |
| ADC Resolution | 12-bit SAR |
| Analog Comparators | Yes |
| DMA Channels | Yes |
| Serial Interfaces | eUSCI (UART / SPI / I2C) |
| Number of I/Os | 68 (via port mapping) |
| Operating Temperature Range | -40C to +85C |
| Package | LQFP (PM), 64 pins, 10x10 mm |
| Mounting Type | Surface Mount |
| Low-Power Modes | LPM0 to LPM4.5 |
| Data Logger Write Technology | FRAM (no erase cycle, fast low-energy writes) |
MSP430FR59941IPM lqfp (pm), 64 pins, 10x10 mm Pin Configuration Guide
Complete pinout information for MSP430FR59941IPM (lqfp (pm), 64 pins, 10x10 mm 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.
No detailed pinout data available for MSP430FR59941IPM.
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
MSP430FR59941IPM is suitable for 6 applications: Battery-Powered Data Logging, Sensor-Fusion IoT Nodes with Edge DSP, Utility Metering, Portable Medical Monitoring, Building Automation and HVAC Control, Secure Connected Endpoints.
Battery-Powered Data Logging
The MSP430FR59941IPM fits battery data loggers because FRAM writes consume a fraction of the energy flash writes require and need no erase cycle, enabling continuous sensor recording on a coin cell. In a typical logger, the 12-bit ADC samples via DMA into an 8KB SRAM buffer while the CPU rests in LPM3, then a burst write flushes the buffer into 256KB FRAM. The trade-off versus flash MCUs is higher unit cost, offset by essentially unlimited write endurance, which matters for loggers writing hundreds of thousands of records over a multi-year deployment.
Recommended
Sensor-Fusion IoT Nodes with Edge DSP
IoT sensor nodes benefit from the LEA (Low-Energy Accelerator), which executes FFTs, FIR filters, and vector operations while the CPU sleeps, so raw accelerometer or microphone streams can be pre-processed at minimal energy before transmission. The MSP430FR59941IPM's 16 MHz CPUXV2 core handles protocol stacks over eUSCI UART/SPI/I2C interfaces, while AES256 hardware secures the uplink. Compared with a Cortex-M0+ flash MCU, FRAM enables in-place data buffering with fast, low-energy writes; the trade-off is a 16-bit core, so heavy integer-heavy logic should stay offloaded to LEA kernels from TI's DSPLib.
Recommended
Utility Metering
Electricity and water meters demand non-volatile tamper logging, long battery life, and precise analog front ends, all served by the MSP430FR59941IPM's 256KB FRAM, 12-bit ADC, and comparators. FRAM's immediate, erase-free writes capture consumption and tamper events the instant they occur, even if power is removed microseconds later, something flash MCUs cannot guarantee without supercapacitors. The -40C to +85C industrial rating covers outdoor meter enclosures. Designers should budget the LQFP-64 supply decoupling carefully in noisy metering environments and exploit the AES256 engine for secure metrology data authentication.
Recommended
Portable Medical Monitoring
Wearable and portable medical instruments use the MSP430FR59941IPM for its combination of low-power modes, encrypted storage, and DSP pre-processing: biosignal channels (ECG, PPG, glucose) are filtered by LEA FIR kernels in hardware before feature extraction. FRAM provides tamper-resistant, quickly written event storage that satisfies data-integrity expectations in monitoring devices, and AES256 secures patient records at rest. The -40C to +85C rating and small LQFP-64 footprint suit compact enclosures. The key design consideration is analog front-end noise, so use short, guarded ADC input routing on the 64-pin package.
Recommended
Building Automation and HVAC Control
Building controllers need many I/O, robust serial links, and long service life; the MSP430FR59941IPM offers 68 software-mappable I/O via the port mapping controller plus four eUSCI interfaces for RS-485, I2C sensors, and local HMI links. The comparator and 12-bit ADC support over-temperature and over-current supervision, while FRAM retains configuration and run-hour counters without wear-out concerns across decades of service. The 16 MHz core comfortably runs PID loops at kilohertz rates. The trade-off is modest processing headroom, so reserve LEA for sensor filtering rather than control-loop logic in dense multi-zone controllers.
Recommended
Secure Connected Endpoints
Endpoints that must authenticate and encrypt locally leverage the MSP430FR59941IPM's AES256 hardware accelerator, which offloads encryption so the 16 MHz CPU handles application logic and communication. Keys and logs stored in FRAM can be written immediately upon event detection with no erase latency, and FRAM's non-volatility resists power-glitch attacks that target SRAM state. Typical roles include smart locks, secure sensor gateways, and encrypted data recorders using eUSCI UART or SPI links. Designers should note that AES256 is symmetric-only; asymmetric key exchange requires software libraries within the 256KB code budget.
Recommended
Recommended Products Summary
Engineering reference data for MSP430FR59941IPM β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430FR5994IPM | MSP430FR59641IPM | MSP430FR5964IPM | MSP430FR5969IPM | MSP430FR5968IPM |
|---|---|---|---|---|---|---|
| Package | LQFP-64 (PM) 10x10 mm | LQFP-64 (PM) - same | LQFP-64 (PM) - same | LQFP-64 (PM) - same | LQFP-64 (PM) - same | LQFP-64 (PM) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| CPU Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| FRAM Memory | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB | 128 KB |
| SRAM | 8 KB | 8 KB | [DATA_NEEDED] | 2 KB | 2 KB | 2 KB |
| LEA Accelerator | Yes | Yes | Yes | No | No | No |
| AES256 Hardware | Yes | Yes | Yes | No | No | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Unit Price (qty 1) | $7.18 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- LEA DSP accelerator included (vs MSP430FR5964IPM)
- 256KB FRAM vs 128KB family variants (vs MSP430FR5969IPM)
- AES256 hardware encryption (vs MSP430FR5968IPM)
Design Notes
The MSP430FR59941IPM supports supply operation per the family datasheet (typically near 2-3.6V class for MSP430FR parts; verify VCORE requirements for 16 MHz operation). Place 100 nF ceramic capacitors at each DVCC/AVCC pin pair of the LQFP-64 plus one 4.7-10 uF bulk capacitor. Use the SVS/SVM (supervisor) settings in the PMM module to hold the core in reset during brownouts; FRAM retains data at 0 V but the CPU must not execute below the core-voltage floor.
Do not assume all family members are identical: per TI's E2E forum family comparison, MSP430FR5994/FR59941 include LEA while MSP430FR5964 does not, and FRAM sizes differ across FR596x parts (128KB vs 256KB). Also, FRAM accesses above 8 MHz incur wait states, so cycle-count-critical ISRs should be benchmarked. Finally, the port mapping controller means pin functions are software-assigned; port mapping misconfiguration is a frequent bring-up failure on 64-pin PM devices.
Use TI's reference layout guidance for LQFP (PM) 64: keep the analog ground region under the ADC/comparator pins continuous with a single-point connection to digital ground, route eUSCI and crystal traces short, and place the LFXT/HFXT crystals with local guard rings. Provide thermal relief through the standard LQFP leadframe (no exposed pad), which is adequate at the low power levels of this MCU. Estimate: with a 16 MHz active current in the few-mA class and 3.3 V supply, dissipation stays well under 20 mW, so no heatsinking is needed.
Compliance Information
Distributor snippets in the provided data do not state RoHS/REACH status explicitly. TI standard MSP430FR products are generally RoHS-compliant and lead-free, but compliance for the exact IPM suffix must be confirmed via TI.com Quality & Packaging pages. No automotive AEC-Q100 variant indicated for this orderable part.
