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Texas Instruments MSP430FR5994IPNR
- Part No.:
- MSP430FR5994IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FR5994IPNR.pdf
- Description:
- IC MCU 16BIT 256KB FRAM 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,125
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Product details
Overview
MSP430FR5994IPNR 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 six 16-bit timers. It operates from 1.8 V to 3.6 V and delivers 118 µA/MHz active current, targeting battery-powered sensing and processing in constrained environments.
For engineers reviewing the MSP430FR5994IPNR datasheet, MSP430FR5994IPNR pinout, MSP430FR5994IPNR application, or MSP430FR5994IPNR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LEA-accelerated FFT performance, RTC-enabled LPM3.5 (350 nA), capacitive-touch I/O support, and UART/I²C bootloader capability.
Technical Context
The MSP430FR5994IPNR 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 without CPU intervention. Its clock system combines DCO, LFXT (32 kHz crystal), and HFXT for flexible low-power timing.
Peripherals include six eUSCI_A modules (UART/IrDA/SPI) and four eUSCI_B modules (I²C/SPI), a 16-channel analog comparator, AES-128/256 encryption coprocessor, and memory protection unit (MPU) with IP encapsulation - all operating within TI's ULP architecture supporting LPM0–LPM4.5 modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz - enables deterministic real-time control with minimal code footprint |
| Nonvolatile Memory | 256 KB FRAM + 0.5 KB information memory - supports fast, low-energy firmware updates and data logging without wear leveling |
| RAM | 8 KB total, including 4 KB shared with LEA - allows concurrent CPU/accelerator operation for sensor fusion workloads |
| ADC | 12-bit SAR ADC with 20 external inputs, window comparator, internal reference - suitable for multi-channel analog monitoring with autonomous triggering |
| Ultra-Low-Power Modes | LPM3.5 (RTC active): 350 nA; LPM4.5 (shutdown): 45 nA - extends coin-cell battery life to years in periodic wake-up applications |
| Security | AES-128/256 coprocessor + MPU with IP encapsulation - protects firmware and sensitive data against physical and logical attacks |
| Serial Interfaces | 4 × eUSCI_A (UART/IrDA/SPI), 4 × eUSCI_B (I²C/SPI) - enables simultaneous connectivity to sensors, displays, and wireless transceivers |
Pinout & Package
LQFP-80 package (12 mm × 12 mm, 0.5 mm pitch), thermally enhanced with exposed thermal 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 assertion, NMI-triggered fault handling, and Spy-Bi-Wire programming |
| P1.0–P1.7, P2.0–P2.7, etc. | Configurable GPIO with capacitive-touch support | All 68 I/O pins provide CTSIO capability without external components - reduces BOM and PCB area for wearable touch interfaces |
| P2.0/P2.1 | BSLTX/BSLRX (UART Bootloader) | Dedicated hardware UART pins for field firmware updates via serial interface - no external level shifter required |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768 kHz crystal for RTC operation in LPM3.5 - enables calendar-based wake-up at 350 nA quiescent current |
| PJ.6/PJ.7 | HFXIN/HFXOUT | Supports high-frequency crystal (up to 24 MHz) for precise timing in active-mode signal acquisition or communication |
Key Features
| Feature | Design Value |
|---|---|
| FRAM Technology | 256 KB unified memory with 10¹⁵ write cycles and 125 ns word write - eliminates flash erase delays and wear-out concerns in data-logging systems |
| Low-Energy Accelerator (LEA) | Hardware DSP engine delivering 40× faster 256-point FFT vs. Cortex-M0+, offloading CPU for continuous sensor analytics |
| Capacitive-Touch I/O | All 68 GPIO pins support CTSIO natively - enables multi-button or slider interfaces without RC networks or dedicated touch controllers |
| Real-Time Clock (RTC) | Calendar mode with alarm and 350 nA LPM3.5 current - provides time-stamped event capture and scheduled wake-up for energy harvesting nodes |
| Hardware AES Encryption | 128/256-bit AES coprocessor with DMA support - accelerates secure boot, OTA update verification, and encrypted sensor data transmission |
Applications
| Smart Grid Sensor Node | Industrial Predictive Maintenance Edge Device |
|---|---|
Use Scenario: Battery-powered current/voltage monitoring node deployed on distribution transformers with 10-year lifetime requirement. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, FRAM-based waveform storage, and RTC-scheduled telemetry uploads. Use Value: 45 nA LPM4.5 shutdown current and 350 nA RTC wake-up enable multi-year operation on primary lithium cells; FRAM endurance supports >100 million waveform samples. | Use Scenario: Vibration and temperature edge analyzer mounted on rotating machinery in factory automation settings. IC Role / Device Role / Timing Role: Real-time sensor fusion hub running FFT-based spectral analysis via LEA, with AES-encrypted Bluetooth LE data forwarding. Use Value: LEA-accelerated 256-point FFT completes in <1 ms at 16 MHz, enabling 1 kHz sampling with 90% CPU bandwidth remaining for protocol stack and control logic. |
| Wearable Fitness Tracker | Building Automation Occupancy Sensor |
Use Scenario: Compact wrist-worn device measuring heart rate, motion, and ambient light with optical and inertial sensors. IC Role / Device Role / Timing Role: Central controller managing capacitive-touch UI, optical ADC sampling, and BLE connectivity via eUSCI_A0. Use Value: All-GPIO capacitive-touch eliminates external touch IC; 118 µA/MHz active current and FRAM-based activity buffer reduce average power to <5 µA over 24-hour cycle. | Use Scenario: Self-powered occupancy detector using PIR and ultrasonic sensing in HVAC-controlled office spaces. IC Role / Device Role / Timing Role: Ultra-low-power coordinator sampling multiple analog sensors, correlating events, and transmitting via sub-GHz RF module. Use Value: 500 nA LPM3 standby with VLO and 350 nA LPM3.5 with RTC allow wake-on-motion while maintaining accurate time-of-day for scheduling ventilation cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5964IPNR | No Low-Energy Accelerator (LEA); identical FRAM/RAM, peripherals, and power specs | Not suitable for on-device FFT or matrix math; requires CPU-only signal processing | Select when LEA is unnecessary and cost reduction is prioritized over computational acceleration |
| MSP430FR59941IPNR | I²C-capable BSL (P1.6/P1.7) instead of UART BSL (P2.0/P2.1); otherwise identical feature set | Requires I²C host for firmware updates; incompatible with UART-based field programming tools | Select when system already uses I²C for host communication and UART pins are allocated elsewhere |
Compared with MSP430FR5964IPNR and MSP430FR59941IPNR, the MSP430FR5994IPNR uniquely delivers hardware-accelerated signal processing while retaining full pin compatibility and identical memory/peripheral resources - making it optimal for next-generation ultra-low-power edge analytics where CPU offload is critical.
Availability
MSP430FR5994IPNR is available at Aetrix Electronics and suitable for grid infrastructure monitoring, industrial predictive maintenance, and wearable electronics requiring stable component supply across long-lifecycle deployments.
Supply support for MSP430FR5994IPNR 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 focused on analog, embedded processing, and connectivity technologies with broad industrial and automotive design-in presence.
The MSP430FR599x product line was engineered for ultra-low-power sensing and signal processing in battery-constrained IoT endpoints - combining FRAM, LEA, and deep-sleep modes to extend operational lifetime without sacrificing compute capability.
FAQ
What is the maximum operating frequency of the MSP430FR5994IPNR?
The MSP430FR5994IPNR supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO) or external HFXT crystal. This frequency is fully supported across all operating voltage ranges (1.8 V to 3.6 V) and enables deterministic real-time execution of time-critical tasks such as ADC sampling, timer-based PWM generation, and UART communication without throttling.
Does the MSP430FR5994IPNR support hardware-accelerated FFT processing?
Yes, the MSP430FR5994IPNR includes a dedicated Low-Energy Accelerator (LEA) subsystem that executes 256-point complex FFT up to 40× faster than a Cortex-M0+ core. The LEA operates independently of the CPU, uses shared 4KB RAM, and is accessible via optimized DSP library functions - enabling efficient spectral analysis in battery-powered sensor nodes without increasing active power consumption.
How many I/O pins does the MSP430FR5994IPNR provide in the LQFP-80 package?
The MSP430FR5994IPNR in the LQFP-80 package provides 68 general-purpose I/O pins, all supporting capacitive-touch sensing without external components. Pin assignments include dedicated UART/I²C/SPI functions, analog inputs for the 12-bit ADC, and configurable timer/capture compare outputs - with full multiplexing documented in Section 7.3 of the SLASE54D datasheet.
What is the lowest power consumption mode available on the MSP430FR5994IPNR?
The lowest power mode is LPM4.5 (shutdown), drawing just 45 nA at 3 V with all clocks and RAM retention disabled. For RTC-enabled wake-up, LPM3.5 draws 350 nA when powered by a 3.7-pF 32.768 kHz crystal - making the MSP430FR5994IPNR suitable for decade-long deployments in energy-harvesting or primary-battery applications where infrequent event-driven operation is required.
Is the MSP430FR5994IPNR pin-compatible with other devices in the MSP430FR59xx family?
Yes, the MSP430FR5994IPNR shares identical pinouts across LQFP-80 variants including MSP430FR5964IPNR and MSP430FR59941IPNR. Mechanical and electrical pin mapping is consistent per package type, allowing direct substitution in existing designs - though functional differences (e.g., LEA presence, BSL interface type) must be verified in firmware and system-level validation.
MSP430FR5994IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-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:
- 68
- 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 20x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5994IPNR FAQ
1.How can I place an order for MSP430FR5994IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5994IPNR 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 MSP430FR5994IPNR reliable?
The price and inventory of MSP430FR5994IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5994IPNR is usually 5 days.
3.What payment methods are accepted for MSP430FR5994IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5994IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5994IPNR?
MSP430FR5994IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5994IPNR 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 MSP430FR5994IPNR?
For technical support, including MSP430FR5994IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5994IPNR requirements.
6.How does Aetrix verify that MSP430FR5994IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5994IPNR 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 MSP430FR5994IPNR meets industry standards.
7.What is the process for return or replacement of MSP430FR5994IPNR?
All MSP430FR5994IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5994IPNR, 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 MSP430FR5994IPNR part is unused and in its original packaging.
Return procedure for MSP430FR5994IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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