MSP430FR6989IPNR Overview
The MSP430FR6989IPNR is a low-power, 16-bit microcontroller in the MSP430 FRAM family. It combines non-volatile FRAM memory, multiple analog and digital peripherals, and an energy-efficient core to reduce standby and active power compared with many flash-based MCUs. The device targets battery-powered and real-time sensing systems that need faster writes, higher endurance, and more write cycles. For sourcing details and distributor options refer to IC Manufacturer.
MSP430FR6989IPNR Technical Specifications
| Parameter | Value |
|---|---|
| CPU | 16-bit MSP430 RISC core |
| Non-volatile memory | 128 KB FRAM |
| SRAM | 2 KB |
| Maximum CPU clock | 16 MHz |
| Operating voltage | 1.8 V to 3.6 V |
| Operating temperature | -40 ??C to +85 ??C |
| Package | 64-pin LQFP (PNR suffix) |
| ADC resolution | 12-bit |
| Number of timers | Multiple Timer_A and Timer_B modules |
| Communication interfaces | eUSCI modules for UART, SPI, I2C |
MSP430FR6989IPNR Key Features
- FRAM non-volatile memory enables faster writes and higher endurance compared with typical flash, which reduces latency and extends device lifetime.
- Ultra-low-power 16-bit core delivers energy efficiency for long-lived battery designs and lower energy per instruction than many 32-bit alternatives for small control tasks.
- Integrated 12-bit ADC and timers provide precise analog sensing and deterministic timing without external components, improving system integration and reducing BOM cost.
- Flexible serial peripherals (UART/SPI/I2C via eUSCI) support multiple sensor and comms topologies, enabling compatibility with a wider range of interfaces in one device.
Typical Applications
- Battery-powered sensing nodes that need low standby current and many non-volatile writes for logged measurements and settings retention over millions of cycles.
- Industrial sensors and controllers requiring stable operation from -40 ??C to +85 ??C, accurate 12-bit analog measurement, and deterministic timer-based control loops.
- Wearable and portable devices where FRAM write speed and endurance reduce latency and improve user experience compared with flash-based MCUs.
- Embedded metering and data-logging systems that benefit from fast non-volatile writes, precise ADC sampling, and multiple serial interfaces for external peripherals.
MSP430FR6989IPNR Advantages vs Typical Alternatives
The device stands out for its FRAM-based storage which offers faster write times, far higher endurance, and lower write energy vs typical flash-based MCUs. The 16-bit MSP430 core delivers lower active energy per instruction for simple control tasks compared with many higher-clocked 32-bit parts. Integrated 12-bit ADC, multiple timers, and eUSCI serial blocks reduce external components and board area. Together these traits give better write performance, lower power draw, and tighter integration for sensor and battery-powered applications.
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MSP430FR6989IPNR Brand Info
The MSP430FR6989IPNR is produced by Texas Instruments. TI??s MSP430 family focuses on ultra-low-power microcontrollers with FRAM options. The brand emphasizes power efficiency, integrated analog features, and robust industrial-grade temperature ranges suitable for embedded and battery-powered systems.
FAQ
What is FRAM and why use it?
FRAM is a non-volatile memory type that combines fast write speeds with high endurance. It allows many more write cycles than flash, enables near-instant writes, and lowers energy per write. This makes it ideal for frequent-logging and configuration storage.
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What supply voltage range does it support?
The device operates across a wide supply range suitable for common battery and regulated systems. This range lets designers choose lower-voltage battery chemistries or standard 3.3 V rails while maintaining reliable MCU operation.
How many analog inputs and what resolution?
The MCU integrates a 12-bit ADC with multiple input channels. This provides sufficient resolution for many sensing tasks and allows direct connection of analog sensors without external ADCs.
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Which serial interfaces are available?
Multiple eUSCI modules support UART, SPI, and I2C modes. These interfaces enable connectivity to sensors, radios, displays, and external memory devices, reducing the need for additional bridge ICs.
Is it suitable for industrial temperature ranges?
Yes. The part is specified for industrial operation, supporting temperatures down to -40 ??C and up to +85 ??C, which is standard for many industrial and outdoor embedded applications.