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Texas Instruments MSP430FR5859IRHAR
- Part No.:
- MSP430FR5859IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5859IRHAR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,874
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Product details
Overview
MSP430FR5859IRHAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, and integrated 12-bit ADC (14 external + 2 internal channels), RTC, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering systems requiring fast write endurance and sub-µA LPM3.5 operation.
For engineers reviewing the MSP430FR5859IRHAR datasheet, MSP430FR5859IRHAR pinout, MSP430FR5859IRHAR application, or MSP430FR5859IRHAR equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for design-in decisions in battery-powered industrial sensing and data logging.
Technical Context
The MSP430FR5859IRHAR implements the ULP CPUXV2 core with 16 registers and supports up to 16 MHz DCO clocking, HFXT crystal oscillator (up to 24 MHz), and low-power VLO/LFXT sources. Its memory subsystem integrates 64KB FRAM with 10¹⁵ write-cycle endurance and unified program/data/storage space.
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 16-channel analog comparator, hardware CRC16, 32-bit MPY, and dual eUSCI modules - eUSCI_A0/A1 supporting UART with autobaud detection and IrDA, and eUSCI_B0 supporting I²C with multiple slave addressing and SPI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock speed for deterministic real-time control |
| FRAM Capacity | 64 KB nonvolatile memory with 125 ns/word write speed and 10¹⁵ endurance - enables frequent data logging without wear leveling |
| ADC Resolution | 12-bit SAR ADC with 14 external + 2 internal input channels and integrated reference - supports precision sensor signal acquisition |
| Low-Power Modes | LPM3.5 draws 0.25 µA typical with RTC active - extends battery life in calendar-aware wake-up applications |
| eUSCI Interfaces | eUSCI_A0/A1: UART/IrDA/SPI; eUSCI_B0: I²C (multi-slave) + SPI - provides flexible serial connectivity for sensor fusion and host communication |
| Supply Voltage Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, coin cell, and energy-harvesting power sources |
| RTC Support | Real-time clock with calendar and alarm functions, clocked by 32-kHz crystal - enables time-stamped event recording and scheduled wake-up |
Pinout & Package
VQFN-40 (RHA) package, 6 mm × 6 mm body size, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | RTC calibration output, ADC channel A0 input, comparator C0, and negative reference source - enables synchronized timing and analog sensing |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | RTC-compatible clock input, ADC channel A1, comparator output, and positive reference source - supports dual-reference ADC operation |
| P1.3/TA1.2/UCB0STE/A3/C3 | Multi-function I/O | eUSCI_B0 SPI slave transmit enable, ADC channel A3, comparator C3 - allows SPI peripheral control and analog monitoring on same pin |
| P1.4/TB0.1/UCA0STE/A4/C4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable, ADC channel A4, comparator C4 - enables concurrent serial interface and analog sensing |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | Multi-function I/O | I²C data line (SDA), SPI master-in/slave-out, Timer_A0 capture - supports BSL programming via I²C and timer-based event capture |
| P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0 | Multi-function I/O | I²C clock line (SCL), SPI master-out/slave-in, Timer_A1 capture - enables hardware BSL and synchronous peripheral interfacing |
| PJ.6/HFXIN | Oscillator Input | High-frequency crystal input (up to 24 MHz) - required for full-speed CPU and high-resolution timer operation |
| PJ.7/HFXOUT | Oscillator Output | High-frequency crystal output - completes HFXT oscillator loop for stable system clock generation |
| RST/NMI/SBWTDIO | Reset/Debug | Reset input, non-maskable interrupt, and Spy-Bi-Wire debug I/O - enables firmware recovery and in-circuit debugging |
| TEST/SBWTCK | Debug Clock | Spy-Bi-Wire test clock input - required for JTAG/SBW programming and boundary-scan testing |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory with 125 ns write speed and 10¹⁵ endurance - eliminates flash erase delays and wear management overhead |
| Ultra-Low-Power Operation | 0.25 µA in LPM3.5 (RTC active) and 0.02 µA in LPM4.5 - enables multi-year battery life in intermittent-sensing applications |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external components - reduces BOM cost and board space for HMI interfaces |
| Hardware Acceleration | 32-bit hardware multiplier and 16-bit CRC engine - accelerates mathematical operations and data integrity checks in firmware |
| Secure Bootloader (BSL) | UART- or I²C-accessible hardware bootloader with password protection - enables field firmware updates without JTAG hardware |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with hourly consumption logging, tamper detection, and RF transmission. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, FRAM-based secure data storage, RTC-timestamped logs, and UART/I²C comms to RF module. Use Value: 64KB FRAM enables 10+ years of hourly logs at 128 bytes/log; 0.25 µA LPM3.5 extends lithium primary battery life beyond 15 years. |
Use Scenario: Wireless temperature/humidity node powered by solar cell + supercapacitor, transmitting data every 5 minutes. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting regulation, sensor readout, RTC-scheduled wake-up, and low-power UART-to-LoRaWAN bridge. Use Value: Sub-µA sleep current minimizes leakage loss; FRAM's instant write preserves data during power interruption from intermittent harvesting. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Chest-strap ECG/PPG device with motion compensation, onboard analysis, and Bluetooth LE handoff. IC Role / Device Role / Timing Role: Primary MCU acquiring analog biosignals via 12-bit ADC, performing real-time filtering using MPY32, storing waveform snippets in FRAM, and triggering BLE events via RTC alarms. Use Value: Unified FRAM simplifies firmware architecture; capacitive touch I/O enables buttonless UI; 1.8 V operation matches coin-cell voltage profile. |
Use Scenario: DIN-rail-mounted environmental logger recording temperature, humidity, and vibration in factory settings for predictive maintenance. IC Role / Device Role / Timing Role: Standalone data acquisition unit with multi-sensor analog front-end, RTC-calendar logging, CRC-protected FRAM storage, and RS-485 (via UART + transceiver) reporting. Use Value: Radiation-resistant FRAM ensures data integrity in electrically noisy industrial environments; 3.6 V max rating supports 24 V DC-DC derived rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5849IRHAR | LFXT-only (no HFXT), 12 external ADC inputs vs. 14, 33 I/O pins vs. 33 (same count but different mapping), 64KB FRAM/2KB RAM identical | Designed for crystal-restricted environments (e.g., sealed meters); lacks high-speed timing for >16 MHz PWM or fast serial protocols | Select when HFXT is unnecessary and cost-sensitive LFXT-only timing suffices |
| MSP430FR5857IRHAR | 32KB FRAM/1KB RAM (vs. 64KB/2KB), identical HFXT, ADC, timers, and pinout - fully compatible footprint and software | Targeted at cost-optimized designs with lower data retention requirements (e.g., short-interval logging without long-term history) | Select when memory budget allows reduction and BOM cost is prioritized over future-proofing |
Compared with MSP430FR5849IRHAR and MSP430FR5857IRHAR, the MSP430FR5859IRHAR uniquely combines HFXT support, maximum FRAM capacity, and full 14-channel ADC capability in the 40-pin RHA package - making it optimal for feature-rich, timing-critical, and data-intensive ULP applications.
Availability
MSP430FR5859IRHAR is available at Aetrix Electronics and suitable for smart metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply across extended product lifecycles.
Supply support for MSP430FR5859IRHAR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The MSP430FR58xx family is engineered for ultra-low-power sensing and measurement applications, integrating FRAM, intelligent peripherals, and holistic power management to extend battery life while maintaining performance.
FAQ
What is the maximum operating frequency of the MSP430FR5859IRHAR?
The MSP430FR5859IRHAR supports up to 16 MHz system clock via its digitally controlled oscillator (DCO) or high-frequency crystal oscillator (HFXT) up to 24 MHz. This enables real-time signal processing and high-speed serial communication while maintaining ultra-low-power efficiency across all active and low-power modes. The MSP430FR5859IRHAR achieves this without compromising its 0.25 µA LPM3.5 current draw.
Does the MSP430FR5859IRHAR support hardware encryption or secure boot?
The MSP430FR5859IRHAR does not integrate AES or dedicated cryptographic accelerators. It provides a hardware bootloader (BSL) with password protection accessible via UART or I²C, enabling authenticated firmware updates. Security relies on software-implemented algorithms and memory protection unit (MPU) features. For applications requiring FIPS-grade encryption, external co-processors or higher-tier MSP430FR6xx devices should be considered. The MSP430FR5859IRHAR focuses on physical-layer security through FRAM's radiation resistance and nonmagnetic properties.
Can the MSP430FR5859IRHAR operate from a single 1.8 V supply?
Yes, the MSP430FR5859IRHAR is fully specified to operate from 1.8 V to 3.6 V, with all peripherals functional across this range. At 1.8 V, it maintains full 16-bit CPU operation, 12-bit ADC accuracy (with appropriate reference configuration), and FRAM write capability. The minimum supply is constrained by SVS thresholds, not core logic - confirmed in TI's SLASE34E datasheet Section 5.3. This makes the MSP430FR5859IRHAR ideal for single-cell Li-ion or coin-cell-powered designs.
How many ADC input channels does the MSP430FR5859IRHAR support?
The MSP430FR5859IRHAR integrates a 12-bit ADC12_B module supporting 14 external analog input channels (A0–A13) plus 2 internal sources (temperature sensor and supply voltage). Channel selection is software-configurable, and conversions can be triggered by timers, software, or external signals. This matches the specification in Table 3-1 of the SLASE34E datasheet and exceeds the 12-channel capability of the MSP430FR584x series. The MSP430FR5859IRHAR uses these inputs for simultaneous sensor monitoring in metering and environmental logging.
Is the MSP430FR5859IRHAR pin-compatible with other devices in the MSP430FR58xx family?
The MSP430FR5859IRHAR in the 40-pin VQFN (RHA) package shares identical pinout and electrical characteristics with MSP430FR5857IRHAR and MSP430FR5858IRHAR - enabling drop-in replacement within the FR585x HFXT subfamily. However, it is not pin-compatible with LFXT-only variants (e.g., MSP430FR5849IRHAR) due to swapped HFXIN/HFXOUT and LFXIN/LFXOUT pins. Always verify signal mapping against Figure 4-4 (RHA HFXT) in the datasheet before substitution. The MSP430FR5859IRHAR's pin layout is optimized for high-frequency crystal integration.
MSP430FR5859IRHAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-VFQFN Exposed Pad
- 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, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 33
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5859IRHAR FAQ
1.How can I place an order for MSP430FR5859IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5859IRHAR 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 MSP430FR5859IRHAR reliable?
The price and inventory of MSP430FR5859IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5859IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5859IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5859IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5859IRHAR?
MSP430FR5859IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5859IRHAR 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 MSP430FR5859IRHAR?
For technical support, including MSP430FR5859IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5859IRHAR requirements.
6.How does Aetrix verify that MSP430FR5859IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5859IRHAR 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 MSP430FR5859IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5859IRHAR?
All MSP430FR5859IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5859IRHAR, 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 MSP430FR5859IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5859IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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