MSP430FR5994 - 16MHz 256KB FRAM MCU with LEA | TI
N.º de pieza: MSP430FR5994 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.28 | $5,28 |
| 10 | $4.72 | $47,20 |
| 100 | $4.1 | $410,00 |
| 500 | $3.68 | $1.840,00 |
| 1.000 | $3.25 | $3.250,00 |
MSP430FR5994 Descripción general
A microcontroller (MCU) is a single-chip embedded computer combining a processor core, memory, and peripherals. The MSP430FR5994 belongs to the 16-bit MCU class, within the broader family of microcontrollers and embedded processors, and sits in TI's MSP430 FRAM platform - a product line that replaces flash memory with ferroelectric RAM for faster, lower-power, and far more durable writes in a unified non-volatile memory architecture.
Key differentiating features include the LEA (Low-Energy Accelerator), which TI states delivers up to 40x the DSP performance of Arm Cortex-M0+ class cores for functions such as FFT, FIR filtering, and matrix multiplication, without requiring DSP expertise. The 256KB FRAM supports memory writes at very low energy compared to flash, and the device integrates a 12-bit ADC, comparator, DMA, AES accelerator, and UART/SPI/I2C serial interfaces, plus multiple 16-bit timers.
Architecturally, the MSP430FR5994 uses the MSP430 CPUXV2 16-bit RISC core, a hallmark of the lowest-power MCU technology platform on the market. The unified FRAM memory allows code and data to coexist in non-volatile storage, enabling in-application software updates and rapid data logging.
Typical applications include battery-powered metering, portable medical and sensor-monitoring equipment, industrial sensing nodes, and edge signal-processing tasks where LEA-accelerated FFT and FIR computation offloads the main CPU.
A key design consideration: FRAM writes consume far less energy than flash programming, but designers should still manage the unified memory map carefully when partitioning persistent data segments.
This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para MSP430FR5994 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MSP430FR5994 (mismo factor de forma y huella) — difiere en Package, ADC Resolution, Data Bus Width, SRAM, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MSP430FR59941
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MSP430FR5989IPMR
✅ Sustitución directa✓ En stock
$6.3 / unidad
Ver hoja de datos →MSP430FR5964
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MSP430FR6994
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MSP430FR5994IPMR
✅ Sustitución directa✓ En stock
$4.21 / unidad
Ver hoja de datos →MSP430FR5994 Valores máximos y características eléctricas
| Core | MSP430 CPUXV2 16-bit RISC |
| Maximum CPU Frequency | 16 MHz |
| Non-Volatile Memory | 256KB FRAM |
| SRAM | 8KB |
| Ancho del bus de datos | 16-bit |
| Hardware Accelerator | LEA (Low-Energy Accelerator) for FFT, FIR, matrix multiplication |
| Security | AES accelerator |
| ADC Resolution | 12-bit |
| Comparators | Yes |
| DMA | Yes |
| Communication Interfaces | UART, SPI, I2C |
| Timers | 16-bit timers |
| Encapsulado | 64-LQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Product Family | MSP430 FRAM Microcontrollers |
| Development Kit | MSP-EXP430FR5994 LaunchPad; MSP-TS430PN80B 80-pin target board |
| Estado RoHS | Compliant |
Guía de configuración de pines de MSP430FR5994 64-lqfp (10x10 mm)
Configuración de pines para MSP430FR5994 (encapsulado 64-lqfp (10x10 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para MSP430FR5994.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MSP430FR5994 es adecuado para 6 aplicacións: Battery-Powered Metering, Edge Signal Processing / Sensor Fusion, Portable Medical Monitoring, Industrial Sensing and Automation Nodes, Building Security and Access Control, Data Loggers and IoT End Nodes.
Battery-Powered Metering
The MSP430FR5994 fits electricity, water, and gas metering designs because its 256KB FRAM supports unlimited, energy-cheap data logging: FRAM writes consume far less energy than flash programming, so usage profiles can be recorded continuously without wearing out memory. The 16 MHz MSP430 CPUXV2 core handles metering computation, while the 12-bit ADC and comparator sample sensor front-ends. TI documents the MSP430 FRAM platform as its lowest-power MCU technology, and ultra-low-power standby modes keep long-life battery budgets achievable. The unified non-volatile memory also enables secure firmware updates in the field.
Recomendado
Edge Signal Processing / Sensor Fusion
TI states the Low-Energy Accelerator on the MSP430FR5994 delivers up to 40x the performance of Arm Cortex-M0+ MCUs for FFT, FIR, and matrix multiplication, making this MCU a strong fit for vibration monitoring, acoustic analysis, and sensor-fusion nodes at the network edge. The LEA performs the heavy math while the CPU sleeps, preserving the MSP430 ultra-low-power budget, and the DMA keeps sample streams flowing to and from the 12-bit ADC without CPU intervention. Because the LEA toolchain requires no DSP expertise, teams can deploy complex algorithms quickly using TI's driver libraries and LaunchPad examples.
Recomendado
Portable Medical Monitoring
Wearable and portable medical monitors benefit from the MSP430FR5994's combination of low active power, fast FRAM writes for continuous physiological data logging, and LEA-accelerated filtering of bio-signals such as ECG or PPG. The 12-bit ADC digitizes analog front-end outputs, while UART/SPI/I2C interfaces connect to Bluetooth or sub-GHz radio modules for data upload. TI's MSP430 family has a long history in medical monitoring designs, and the device's AES accelerator helps protect patient data. Designers should complete the required regulatory qualification of the end system independently of the MCU datasheet ratings.
Recomendado
Industrial Sensing and Automation Nodes
In factory automation, the MSP430FR5994 serves as a compact sensor-node controller: UART, SPI, and I2C interfaces link to industrial transceivers, the 12-bit ADC and comparators digitize process variables, and 256KB FRAM retains calibration tables and event logs through power loss without battery backup. TI's ecosystem of reference designs and code examples shortens development time, and the MSP-TS430PN80B target board supports 80-pin prototyping within the same family. Operating robustness for harsh installations should be validated at system level, including EMI and surge per the relevant industrial standards for the end equipment.
Recomendado
Building Security and Access Control
Access-control readers, door controllers, and security sensors use the MSP430FR5994 for its AES accelerator securing credential data, FRAM retention of authorization tables without external EEPROM, and UART/I2C links to RFID or keypad front-ends. The LEA can locally process sensor signatures for anomaly detection before alerting the host. Low standby power supports battery-backup operation during mains outage. TI provides security-focused collateral in the MSP430FR599x ecosystem, and the device's DMA offloads communication tasks so the CPU can remain in low-power modes between events.
Recomendado
Data Loggers and IoT End Nodes
The MSP430FR5994 excels in standalone data loggers: FRAM's effectively unlimited write endurance and low write energy allow continuous logging at high sample rates, and the unified memory architecture simplifies a ring-buffer design in non-volatile storage. The 16-bit core plus LEA handle timestamping, compression, and FFT-based feature extraction locally, and UART/SPI/I2C connect to radios or SD-card bridges for offload. Because the MCU family is supported by Code Composer Studio and LaunchPad hardware, prototyping to production is a low-friction path for battery-powered IoT endpoints.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MSP430FR5994 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MSP430FR59941 | MSP430FR5989 | MSP430FR5964 | MSP430FR6994 |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP - same | 64-LQFP - same | 64-LQFP - same | 64-LQFP - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Core / Frequency | MSP430 CPUXV2 16-bit, 16 MHz | MSP430 CPUXV2 16-bit, 16 MHz | MSP430 CPUXV2 16-bit, 16 MHz | MSP430 CPUXV2 16-bit, 16 MHz | MSP430 CPUXV2 16-bit, 16 MHz |
| FRAM Size | 256KB | 256KB (different partition) | 256KB | 256KB | 256KB |
| SRAM | 8KB | 8KB | 8KB | 8KB | 8KB |
| ADC | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Security Accelerator | AES | AES | AES | AES | AES |
| Relative Cost Position | Baseline (LEA-equipped) | Comparable | Comparable | Lower (no LEA) | Higher (more peripherals) |
Diferenciadores clave
- LEA coprocessor for DSP-class math (frente a MSP430FR5964)
- Cost-optimized option exists in same footprint (frente a MSP430FR5964)
- Pin-to-pin family flexibility (frente a MSP430FR5989)
- Trade-off: FR6994 has more peripherals (frente a MSP430FR6994)
Notas de diseño
For the 64-LQFP (10x10 mm) footprint, place 100 nF ceramic decoupling capacitors at each VCC/VSS pin pair, positioned within 2-3 mm of the pins, plus one bulk capacitor (10 uF) near the supply entry. The DVSS/AVSS domains should be joined at a single low-impedance star point to keep analog ADC ground return paths clean. TI's MSP-EXP430FR5994 LaunchPad layout serves as a proven reference for decoupling and crystal placement.
The MSP430FR5994 routes peripherals through a pin-multiplexing / Port Mapping scheme, so SPI, UART, and I2C functions are not fixed to single pins. Before finalizing PCB routing, generate the full pin-function assignment from the datasheet pin functions table and lock the port map in firmware. A TI E2E forum thread on 'MSP430FR5994 SPI pins' documents how often this multiplexing surprises designers who assume fixed serial pins.
FRAM writes are much cheaper in energy than flash programming, which enables aggressive data-logging duty cycles, but peak currents during LEA-accelerated FFT bursts differ from CPU-only operation. Size the supply and decoupling for the LEA-active case, and use the device's low-power modes (via the state machine in TI's user's guide) between processing bursts. Estimated: logging every 100 ms with short active windows can extend multi-year battery life in typical coin-cell designs, but verify with your own current-profile measurements.
Keep the high-speed crystal/clock traces short and guarded by ground, and route the ADC analog inputs away from UART/SPI switching lines. Use TI's reference designs in the MSP430FR599x ecosystem as layout templates; they reflect recommended Land-pattern and routing practice for the FRAM family and dramatically reduce ADC noise and clock-jitter issues in mixed-signal designs.
Información de cumplimiento
RoHS-compliant lead-free standard ordering per TI's standard MSP430 portfolio policy as reflected on DigiKey/Mouser listings; REACH, halogen-free, and conflict-minerals status must be confirmed on the TI product page quality/Environmental section for the exact ordering code.
