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MSP430FR5994IPMR

FRAM MCU, 256KB FRAM, 8KB SRAM, LEA DSP, AES-256, 45nA shutdown, LQFP-64

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Pieza del fabricante：

MSP430FR5994IPMR

Paquete：

LQFP-64 (10 x 10 x 1,4 mm)

Marca：

Categorías de productos：

Circuitos integrados IC, Microcontroladores (MCU)

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Descripción

Productos

The MSP430FR5994IPMR from Texas Instruments is a 16 MHz ultra-low-power FRAM microcontroller with 256 KB FRAM, 8 KB SRAM, and a Low-Energy Accelerator (LEA) for DSP operations in a 64-pin LQFP (10×10 mm) package. With 118 µA/MHz active, 45 nA shutdown, and AES encryption, it enables always-on sensing and secure data logging in energy-constrained applications.

Especificaciones

Núcleo	16-bit MSP430 RISC, 16 MHz max
Non-Volatile Memory	256 KB FRAM (10^15 write cycles)
RAM	8 KB SRAM (4 KB shared with LEA)
FRAM Write Endurance	10^15 cycles (virtually unlimited)
Tensión de alimentación	1.8V to 3.6V
Active Current	118 µA/MHz typ
Standby (LPM3)	500 nA typ
Shutdown (LPM4.5)	45 nA typ
LEA	Low-Energy Accelerator (FFT, FIR, vector ops)
AES	128/256-bit encryption/decryption
ADC	12-bit SAR, up to 20 channels
Temperatura de funcionamiento	-40°C to +85°C
Paquete	LQFP-64 (10 x 10 x 1,4 mm)

Características

256 KB FRAM with 10^15 write cycle endurance
Low-Energy Accelerator (LEA) for DSP without CPU intervention
128/256-bit AES hardware encryption
Ultra-low power: 118 µA/MHz active, 45 nA shutdown
12-bit ADC with window comparator and 20 channels
4x eUSCI_A (UART/SPI) + 4x eUSCI_B (I2C/SPI)
6-channel DMA and 32-bit hardware multiplier

Aplicaciones

Wearable health and fitness monitoring
Smart meter and energy harvesting
Industrial sensor data logging
Voice and audio processing (LEA)
Secure IoT edge nodes

Introducción del producto:MSP430FR5994IPMR Presentación del producto

The Texas Instruments MSP430FR5994IPMR is an ultra-low-power 16-bit FRAM microcontroller that combines 256 KB of non-volatile FRAM with a Low-Energy Accelerator (LEA) for signal processing and hardware AES encryption for secure data handling. The FRAM technology provides 10^15 write cycle endurance (effectively unlimited) compared to 10^5 cycles for Flash, enabling continuous data logging without wear-out concerns. The LEA performs DSP operations including FFT, FIR filtering, and vector math up to 40x faster than a Cortex-M0+ at a fraction of the energy cost. The AES-128/256 hardware accelerator enables secure wireless communication in IoT applications. The device achieves 118 µA/MHz in active mode and 45 nA in LPM4.5 shutdown, with instant FRAM wakeup (no Flash wait states or bootloader delay). The 12-bit ADC with window comparator can wake the CPU only when sensor data exceeds programmed thresholds, further reducing average power consumption.

Principio de funcionamiento:MSP430FR5994IPMR Principio de funcionamiento

The MSP430FR5994IPMR is based on the 16-bit MSP430 RISC architecture with 27 core instructions and 7 addressing modes. The FRAM (Ferroelectric Random Access Memory) uses a ferroelectric capacitor per bit cell that stores data as the polarization state of the ferroelectric material, providing non-volatile storage with SRAM-like read/write speed and virtually unlimited endurance (10^15 cycles). Unlike Flash memory, FRAM does not require a charge pump or erase-before-write, enabling single-cycle byte-level writes at 125 ns per word. The Low-Energy Accelerator (LEA) is a hardware DSP engine with its own program counter and local memory (4 KB shared SRAM), executing vector operations, FIR/IIR filters, and FFT transforms independently of the CPU. A typical 256-point complex FFT takes approximately 270 µs at 16 MHz, compared to 11 ms on a Cortex-M0+. The AES hardware accelerator performs 128-bit or 256-bit encryption/decryption in 125 cycles (8 µs at 16 MHz), offloading the CPU from cryptographic operations. The 12-bit SAR ADC with window comparator can operate in LPM3 mode, generating an interrupt only when the conversion result falls outside programmed thresholds.

Descripción de la clavija:MSP430FR5994IPMR Definición y funciones de las clavijas

Pin	Nombre	Descripción
1-8	P1.0-P1.7	Port 1 I/O (ADC, timer, UART, SPI)
9-16	P2.0-P2.7	Port 2 I/O (ADC, timer, UART, SPI)
17-24	P3.0-P3.7	Port 3 I/O (ADC, timer, I2C)
25-32	P4.0-P4.7	Port 4 I/O (ADC, timer, SPI)
33-40	P5.0-P5.7	Port 5 I/O (timer, compass, SPI)
41-48	P6.0-P6.7	Port 6 I/O (ADC, comparator)
49-56	P7.0-P7.7	Port 7 I/O (ADC, timer, SPI)
57	AVCC	Alimentación analógica
58	AVSS	Analog Ground
59	DVCC	Digital Supply (1.8-3.6V)
60	DVSS	Digital Ground
61-62	RST/NMI, TEST	Reset / Test / SBW
63-64	XIN/XOUT	Oscilador de cristal

Application Scenarios:In which products and applications isMSP430FR5994IPMR usado

Wearable Health: 256 KB FRAM storing ECG, accelerometer, and SpO2 waveform data continuously with 10^15 write endurance, 45 nA shutdown between measurement intervals
Smart Meter: Energy-harvesting powered meter with FRAM data logging (no Flash wear-out), AES-256 encryption of billing data, and LEA for load profile analysis
Voice Processing: LEA performing real-time FFT and MFCC feature extraction for keyword spotting with 10x lower energy than CPU-based DSP
Industrial Logger: Continuous vibration and temperature logging with ADC window comparator waking CPU only on threshold violation, FRAM endurance eliminating write-cycle budgeting
Secure IoT Edge: AES-256 encryption for wireless sensor data with IP encapsulation protecting firmware IP from reverse engineering

Alternative Models:What chips are recommended as replacements for MSP430FR5994IPMR

Modelo	Marca	FRAM	LEA	Paquete
MSP430FR5994IPNR	TI	256 KB	Yes	LQFP-80
MSP430FR5989IPMR	TI	256 KB	No	LQFP-64
MSP430FR6989IPMR	TI	128 KB	No	LQFP-80
STM32L476RGT6	ST	1MB Flash	No	LQFP-64
SAMR34J18B-MZT	Microchip	256KB Flash	No	QFN-48