MSP430FR5849IRHAR

Introduction to MSP430FR5849IRHAR
- What it is: TI 16‑bit MSP430 microcontroller from the FR58x family, using FRAM memory for nonvolatile storage. The IRHAR suffix denotes a specific package/temperature variant.
- Core and memory: 16‑bit RISC CPU with on‑chip FRAM (and RAM) for code and data, enabling fast, low‑energy writes and reduced wear compared with flash.
- Peripherals: rich mix including UART/SPI/I2C (eUSCI), timers, ADC, DAC, DMA, CRC, and an integrated LCD driver for driving segmented/LCD displays.
- Power and performance: ultra‑low‑power modes with fast wake‑up, ideal for battery-powered or energy‑harvested devices.
- Applications: data logging, sensors, portable meters, wearables, and LCD‑driven instruments.
- Development: supported by TI Code Composer Studio (CCS), IAR, and GCC; MSP430Ware provides libraries and examples.
- Why FRAM: nonvolatile memory with near-zero erase cycles and low energy per write, enabling frequent data logging without wear.

MSP430FR5849IRHAR is part of TI’s MSP430FR58x/FR59x FRAM MCU family. There isn’t a single exact cross-part. Closest equivalents are other MSP430FR58x/FR59x devices with similar FRAM and peripherals. Examples include MSP430FR5849 (same silicon in a different package), MSP430FR5874, MSP430FR5969/FR5989 variants—selected by memory size and pin count. For exact pin/package cross-references, use TI’s Cross Reference Tool.

MSP430FR5849IRHAR features (concise):
- 16-bit MSP430 CPU, up to 16 MHz operation
- FRAM non-volatile memory with high endurance and fast writes
- Sensor Controller Engine (SCE) for ultra-low-power sensing
- LCD segment driver (supports large numbers of segments)
- Analog: 12-bit ADC with multiple channels; analog comparators
- Timers: multiple 16-bit timers with capture/compare
- Serial communications: eUSCI modules for UART, SPI, I2C
- DMA controller for efficient data transfers
- Rich low-power options: multiple sleep modes with fast wake-up
- Voltage range: 1.8–3.6 V
- Industrial temperature range (IR suffix)
- Compact packaging suitable for space-constrained designs (IRHAR variant)

- Pin count: 64 pins (MSP430FR5849 in the HAR package).
- Function: 16‑bit ultra-low‑power microcontroller from the MSP430FR58x family, with embedded FRAM memory and a rich set of peripherals (CPU, timers, ADC/DAC, and multiple serial interfaces) for mixed-signal embedded applications.

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing ICs, including microcontrollers (e.g., MSP430 series), serving global markets.

MSP430FR5849IRHAR is a low‑power MSP430 MCU with FRAM, ideal for long‑life, battery/energy‑harvesting devices. Common applications:
- Sensor nodes and data loggers (environmental, industrial, medical)
- Portable medical and wellness devices
- Handheld measurement and metrology instruments
- Environmental monitoring and smart agriculture
- IoT edge nodes and wireless sensor networks
- Prototyping, education, and affordable embedded systems
Notes: FRAM enables fast, frequent logging with very low power.

64-pin LQFP package (MSP430FR5849IRHAR).