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Texas Instruments MSP430FR5994IPMR
- Part No.:
- MSP430FR5994IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR5994IPMR.pdf
- Description:
- IC MCU 16BIT 256KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,275
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Product details
Overview
MSP430FR5994IPMR 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 up to 20 external channels, and 68 GPIO pins. It operates from 1.8 V to 3.6 V and delivers 40× faster FFT performance than Arm® Cortex®-M0+ cores-enabling real-time sensor data processing in battery-constrained wearable and industrial edge nodes.
For engineers reviewing the MSP430FR5994IPMR datasheet, MSP430FR5994IPMR pinout, MSP430FR5994IPMR application, or MSP430FR5994IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 current (350 nA with RTC), LEA offload capability, UART/I²C eUSCI support, and LQFP-64 package compatibility for space-constrained PCB layouts.
Technical Context
The MSP430FR5994IPMR implements a CPUXV2 core with 16 registers and a dedicated LEA subsystem sharing 4KB of RAM-operating independently of the CPU to accelerate FFT, FIR, and matrix operations. Its clock system integrates DCO, LFXT (32 kHz crystal), and HFXT (up to 16 MHz) with automatic failover and low-jitter timing for precision sensing.
Peripherals include six 16-bit timers (TA0–TA4, TB0), 32-/16-bit CRC, AES-128/256 coprocessor, and capacitive-touch I/O on all pins without external components. The device supports hardware UART or I²C bootloader (BSL) and features memory protection unit (MPU) with IP encapsulation for secure firmware deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC core, up to 16 MHz - enables deterministic real-time control with minimal power overhead |
| Nonvolatile Memory | 256 KB FRAM + 0.5 KB information memory - supports over-the-air updates without wear leveling or erase cycles |
| RAM | 8 KB total RAM (4 KB shared with LEA) - provides dual-access buffer space for concurrent signal processing and application logic |
| Ultra-Low-Power Modes | LPM3.5: 350 nA (RTC active); LPM4.5: 45 nA - extends coin-cell battery life to multi-year operation in always-on sensing |
| Analog Peripherals | 12-bit ADC with 20 external inputs, window comparator, internal reference - enables high-accuracy voltage/current monitoring without external op-amps |
| Digital Acceleration | Low-Energy Accelerator (LEA) - executes 256-point complex FFT in hardware, freeing CPU for system management tasks |
| Communication Interfaces | 4 × eUSCI_A (UART/IrDA/SPI), 4 × eUSCI_B (I²C/SPI) - supports multi-protocol connectivity to sensors, displays, and host controllers |
Pinout & Package
LQFP-64 (PM) package, 10 mm × 10 mm body, 0.5 mm pitch, thermally enhanced with exposed pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / JTAG debug I/O | Single-pin multifunction interface for safe reset initiation, critical fault handling, and Spy-Bi-Wire programming |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.7, P6.0–P6.7, P7.0–P7.7, P8.0–P8.3, PJ.0–PJ.7 | Configurable GPIO with capacitive touch, peripheral multiplexing | All 68 I/Os support direct capacitive sensing and dynamic peripheral assignment (e.g., UCA0TXD, TA0.0, A0) |
| AVCC1, AVSS1–AVSS3 | Analog power supply and ground | Independent analog domain rails isolate sensitive ADC/comp_E circuitry from digital noise |
| LFXIN/LFXOUT, HFXIN/HFXOUT | Low- and high-frequency crystal oscillator connections | Supports 32.768 kHz RTC crystal and up to 16 MHz system clock crystal with internal load capacitance |
| TEST/SBWTCK | Spy-Bi-Wire test clock | Enables single-wire debugging and programming without full JTAG header footprint |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 256 KB unified memory with 10¹⁵ write endurance and 125 ns word write - eliminates flash erase latency and wear management firmware |
| Low-Energy Accelerator (LEA) | Hardware DSP engine executing FFT/FIR/matrix ops independently - reduces CPU load and active-mode energy by >70% in sensor fusion workloads |
| Capacitive Touch I/O | All 68 GPIO pins support touch sensing with no external RC network - enables button/slider/gesture interfaces with minimal BOM cost |
| Secure Boot & Encryption | AES-128/256 coprocessor + MPU with IP encapsulation - protects firmware integrity and prevents unauthorized memory access during runtime |
| Ultra-Low-Power RTC | 350 nA LPM3.5 mode with calendar/alarm functions clocked by 3.7-pF crystal - maintains accurate timekeeping during multi-year battery operation |
Applications
| Wearable Fitness Monitor | Smart Grid Sensor Node |
|---|---|
Use Scenario: Continuous heart-rate and motion tracking using optical and inertial sensors, with local FFT-based activity classification and BLE transmission. IC Role / Device Role / Timing Role: Central MCU managing sensor acquisition, LEA-accelerated signal processing, FRAM-based ring-buffer storage, and low-power wireless interface timing. Use Value: 350 nA RTC + 45 nA shutdown mode extends CR2032 battery life beyond 2 years; FRAM enables seamless firmware updates without downtime. | Use Scenario: Transformer temperature and partial discharge monitoring in distribution substations, reporting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Ultra-low-power data acquisition controller with precise 32.768 kHz RTC for scheduled wake-up, ADC oversampling, and CRC-32 integrity checking. Use Value: 1.8 V minimum operating voltage ensures operation during brownout conditions; radiation-resistant FRAM prevents data corruption in EM-heavy grid environments. |
| Industrial Predictive Maintenance Edge Node | Building Automation Controller |
Use Scenario: Vibration analysis on motors using MEMS accelerometers, performing real-time spectral analysis before transmitting anomaly alerts. IC Role / Device Role / Timing Role: Signal-processing MCU executing 256-point FFT via LEA, synchronizing ADC sampling with timer-triggered DMA bursts. Use Value: LEA completes FFT in <100 µs at 16 MHz - enabling 10 kHz sampling with 95% CPU idle time for communication and diagnostics. | Use Scenario: HVAC zone controller reading temperature/humidity sensors, driving relays and fan speed via PWM, and communicating via I²C to central BMS. IC Role / Device Role / Timing Role: Mixed-signal controller interfacing analog sensors, generating precise PWM outputs, and managing multi-master I²C bus arbitration. Use Value: Integrated 12-bit ADC with internal reference and window comparator eliminates external signal conditioning; 68 GPIO support scalable I/O expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5964IPMR | No Low-Energy Accelerator (LEA); identical FRAM/RAM/peripherals otherwise | Lacks hardware-accelerated FFT/FIR - requires CPU execution for signal processing, increasing active-mode current | Select when LEA is unnecessary and cost reduction is prioritized over computational throughput |
| MSP430FR59941IPMR | I²C-capable BSL (vs. UART BSL); same LEA, FRAM, and peripherals | Requires I²C-based programming infrastructure; no UART bootloader support | Select when production programming uses I²C and UART resources must remain available for application use |
Compared with MSP430FR5994IPMR, the MSP430FR5964IPMR removes LEA to reduce cost but increases CPU load for DSP tasks, while the MSP430FR59941IPMR swaps BSL interface protocol-neither offers pin-to-pin or functional equivalence without firmware or layout adjustments.
Availability
MSP430FR5994IPMR is available at Aetrix Electronics and suitable for wearable electronics, smart grid infrastructure, and industrial predictive maintenance requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR5994IPMR 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 with deep expertise in low-power design and industrial-grade reliability.
The MSP430FR599x product line targets ultra-low-power sensing and measurement applications-designed to maximize battery life while enabling local intelligence through FRAM and hardware acceleration.
FAQ
What is the maximum operating frequency of the MSP430FR5994IPMR?
The MSP430FR5994IPMR supports a maximum system clock frequency of 16 MHz via its factory-trimmed DCO or external HFXT crystal. This frequency applies to CPU execution, peripheral timing, and LEA operation-enabling real-time processing of sensor data streams without compromising ultra-low-power operation in active mode (118 µA/MHz).
Does the MSP430FR5994IPMR support capacitive touch sensing on all I/O pins?
Yes, the MSP430FR5994IPMR supports capacitive touch sensing on all 68 GPIO pins without external components. This capability is implemented in hardware via integrated charge-transfer circuitry and programmable thresholds, allowing direct implementation of buttons, sliders, and proximity detection across the entire I/O set in the MSP430FR5994IPMR.
What package type and pin count does the MSP430FR5994IPMR use?
The MSP430FR5994IPMR uses a 64-pin LQFP (PM) package with 10 mm × 10 mm body size and 0.5 mm lead pitch. It is distinct from other variants like the 80-pin PN or 87-pin ZVW packages-this specific package provides 68 usable I/O signals including power and ground pins, optimized for compact industrial and wearable PCB layouts.
How does the Low-Energy Accelerator (LEA) in the MSP430FR5994IPMR improve power efficiency?
The LEA in the MSP430FR5994IPMR executes compute-intensive operations-including 256-point complex FFT-in hardware while the CPU remains in low-power mode. By offloading these tasks, the MSP430FR5994IPMR reduces active-mode duration by up to 70%, directly lowering total energy per inference cycle compared to CPU-only execution at the same clock rate.
What are the key differences between MSP430FR5994IPMR and MSP430FR59941IPMR?
The MSP430FR5994IPMR features a UART-based hardware bootloader (BSL), while the MSP430FR59941IPMR uses an I²C-based BSL. Both share identical FRAM, RAM, LEA, peripherals, and package options-but the BSL interface difference affects programming infrastructure requirements and pin allocation during production programming of the MSP430FR5994IPMR or MSP430FR59941IPMR.
MSP430FR5994IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- 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:
MSP430FR5994IPMR FAQ
1.How can I place an order for MSP430FR5994IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5994IPMR 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 MSP430FR5994IPMR reliable?
The price and inventory of MSP430FR5994IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5994IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR5994IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5994IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5994IPMR?
MSP430FR5994IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5994IPMR 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 MSP430FR5994IPMR?
For technical support, including MSP430FR5994IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5994IPMR requirements.
6.How does Aetrix verify that MSP430FR5994IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5994IPMR 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 MSP430FR5994IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR5994IPMR?
All MSP430FR5994IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5994IPMR, 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 MSP430FR5994IPMR part is unused and in its original packaging.
Return procedure for MSP430FR5994IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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