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Texas Instruments MSP430FR5858IRHAR
- Part No.:
- MSP430FR5858IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5858IRHAR.pdf
- Description:
- IC MCU 16BIT 48KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,672
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Product details
Overview
MSP430FR5858IRHAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 48KB 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 battery-powered sensor nodes and metering applications requiring fast write endurance and sub-µA standby current.
For engineers reviewing the MSP430FR5858IRHAR datasheet, MSP430FR5858IRHAR pinout, MSP430FR5858IRHAR application, or MSP430FR5858IRHAR equivalent, key selection criteria include HFXT oscillator support (not LFXT), 40-pin VQFN package, 48KB FRAM size, RTC_B availability, and UART-based BSL compatibility - all confirmed for this exact variant.
Technical Context
The MSP430FR5858IRHAR implements the CPUXV2 16-bit RISC core with up to 16 MHz operation, paired with a flexible clock system featuring DCO, HFXT (high-frequency crystal), and VLO. Its low-power architecture supports seven LPMs, including LPM3.5 (RTC active, 0.25 µA typical) and LPM4.5 (shutdown, 0.02 µA typical).
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 16-channel analog comparator, hardware CRC16, 32-bit MPY, and capacitive touch I/O on all pins. The device lacks LFXT and RTC_B in LF-only variants, but MSP430FR5858IRHAR explicitly supports HFXT and includes RTC_B per family documentation and pinout validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz clock speed - enables deterministic real-time control with low cycle count per instruction. |
| FRAM Size | 48 KB unified nonvolatile memory - eliminates flash write delays; supports 10¹⁵ write cycles and 125 ns/word writes. |
| RAM Size | 2 KB SRAM - sufficient for stack, heap, and real-time data buffering in ultra-low-power sensor firmware. |
| ADC Resolution | 12-bit SAR with 14 external + 2 internal input channels - supports precision analog sensing without external signal conditioning. |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, 2xAA, or energy-harvesting sources. |
| Standby Current | 0.4 µA in LPM3 (VLO active) - extends battery life to years in intermittently active sensor logging. |
| RTC Support | RTC_B module with calendar and alarm - enables time-stamped data capture and scheduled wake-up without external RTC IC. |
Pinout & Package
VQFN-40 (RHA) package, 6 mm × 6 mm body, 0.4 mm pitch, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | Primary RTC calibration output; ADC channel A0 input; comparator C0; negative reference source/sink - critical for timekeeping accuracy and analog front-end design. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | Positive reference source/sink; ADC channel A1; comparator output; TA0/TA1 clock input - enables ratiometric ADC measurements and synchronized timer operation. |
| PJ.6/HFXIN | Crystal Input | Dedicated high-frequency crystal input (4–24 MHz) - required for precise timing, USB-free communication, and full-speed CPU operation. |
| PJ.7/HFXOUT | Crystal Output | High-frequency crystal oscillator output - completes HFXT circuit; not usable as general-purpose I/O. |
| P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK | Multi-function I/O | Primary UART TX (UCA0); SPI master out; ACLK output - supports bootloader communication and system clock distribution. |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset with NMI capability; 2-wire Spy-Bi-Wire debug I/O - enables in-system programming and low-pin-count debugging. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 48 KB unified memory with 125 ns write speed and 10¹⁵ endurance - eliminates erase cycles and enables true EEPROM-like wear leveling in data loggers. |
| Ultra-Low-Power Modes | LPM3.5 (0.25 µA) and LPM4.5 (0.02 µA) - supports multi-year battery life in always-on environmental monitors with periodic wake-up. |
| Hardware Acceleration | 32-bit hardware multiplier and 16-bit CRC engine - accelerates cryptographic operations and data integrity checks without CPU overhead. |
| Capacitive Touch I/O | All GPIO pins support CSD (capacitive sensing) without external components - reduces BOM cost and PCB area in wearable HMI designs. |
| Integrated Peripherals | Two eUSCI modules (UART/IrDA/SPI + I²C/SPI), RTC_B, 16-channel comparator, and 5 timers - minimizes need for companion ICs in compact sensor nodes. |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with pulse counting, temperature compensation, and secure data transmission over PLC or RF. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based event logging, and driving UART/I²C comms to modem ICs. Use Value: 48KB FRAM stores decades of tamper-proof consumption logs; RTC_B enables accurate billing intervals; HFXT ensures stable UART baud rates for regulatory-compliant reporting. | Use Scenario: Wireless soil moisture/temperature node powered by solar cell + supercapacitor, transmitting via BLE or LoRaWAN. IC Role / Device Role / Timing Role: System orchestrator sampling sensors, compressing data, managing power states, and initiating radio bursts on RTC alarm. Use Value: 0.25 µA LPM3.5 current extends runtime between harvests; FRAM withstands infinite write cycles from frequent sensor updates; capacitive touch enables local calibration buttons. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Chest-strap ECG/PPG device with motion artifact correction, onboard analytics, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Real-time signal acquisition controller using ADC and comparator for analog front-end triggering, running DSP kernels in FRAM-resident code. Use Value: Unified FRAM allows simultaneous program execution and data storage; 12-bit ADC resolves microvolt-level bio-signals; all-GPIO capacitive touch enables seamless buttonless UI. | Use Scenario: DIN-rail mounted vibration/temperature logger in factory equipment, storing timestamped waveforms for predictive maintenance. IC Role / Device Role / Timing Role: High-reliability data acquisition unit with RTC_B time stamping, FRAM ring buffer, and UART-to-USB bridge firmware. Use Value: 10¹⁵ FRAM write cycles prevent memory wear-out during continuous 24/7 logging; HFXT ensures precise sample timing; LPM4.5 enables safe power-loss recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5859IRHAR | 64 KB FRAM, same package and peripheral set - differs only in memory size and ordering code. | Preferred where extended firmware features or larger data buffers are needed without changing layout. | Select when future firmware expansion or longer data retention periods justify higher memory cost. |
| MSP430FR5848IRHAR | 48 KB FRAM but LFXT-only (no HFXT pins); no RTC_B; 14 ADC external channels (vs. 14+2). | Suitable for cost-sensitive, low-frequency timing applications (e.g., basic thermostats) where HFXT precision is unnecessary. | Choose only if HFXT and RTC_B are not required - pinout differs (PJ.6/PJ.7 unused), requiring PCB redesign. |
Compared with MSP430FR5859IRHAR, MSP430FR5858IRHAR trades 16 KB FRAM for lower cost while retaining identical HFXT, RTC_B, and peripheral functionality; versus MSP430FR5848IRHAR, it adds HFXT support and RTC_B at the expense of LFXT compatibility - making it the optimal choice for time-critical, high-accuracy sensor systems.
Availability
MSP430FR5858IRHAR is available at Aetrix Electronics and suitable for smart utility metering, energy-harvested sensor nodes, and wearable health monitoring requiring stable component supply, long-term lifecycle assurance, and consistent FRAM performance across production batches.
Supply support for MSP430FR5858IRHAR 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 product line delivers ultra-low-power mixed-signal MCUs with integrated FRAM for energy-constrained applications such as battery-operated meters, wearables, and industrial sensors - emphasizing write endurance, sub-µA sleep, and analog integration.
FAQ
What is the maximum operating frequency of the MSP430FR5858IRHAR?
The MSP430FR5858IRHAR supports a maximum CPU clock frequency of 16 MHz, achieved using the integrated DCO or an external HFXT crystal (4–24 MHz). This frequency is fully supported across the entire 1.8 V to 3.6 V supply range, enabling deterministic real-time response in time-critical sensor fusion tasks executed on the MSP430FR5858IRHAR.
Does the MSP430FR5858IRHAR include a real-time clock (RTC) module?
Yes, the MSP430FR5858IRHAR includes the RTC_B module with calendar and alarm functions, clocked by the HFXT oscillator. Unlike LFXT-dependent variants, this RTC operates reliably with the high-frequency crystal, supporting precise timekeeping and scheduled wake-up from LPM3.5 at 0.25 µA typical - a confirmed feature of the MSP430FR5858IRHAR per device comparison tables and functional block diagrams.
What package type and pin count does the MSP430FR5858IRHAR use?
The MSP430FR5858IRHAR uses a 40-pin VQFN package (RHA suffix), measuring 6 mm × 6 mm with 0.4 mm pitch and an exposed thermal pad. This package is validated in TI's official mechanical drawings and matches the pinout shown in Figure 4-4 of the SLASE34E datasheet - confirming PJ.6/HFXIN and PJ.7/HFXOUT as active, HFXT-specific terminals on the MSP430FR5858IRHAR.
How much FRAM and RAM does the MSP430FR5858IRHAR provide?
The MSP430FR5858IRHAR integrates 48 KB of ferroelectric RAM (FRAM) and 2 KB of SRAM. The FRAM serves as unified nonvolatile memory for code, data, and logging - offering 125 ns write speed and 10¹⁵ endurance. The SRAM provides volatile working memory for stack and runtime variables. These values are explicitly listed in Table 3-1 (Device Comparison) for MSP430FR5858 in the SLASE34E datasheet.
Which communication interfaces are supported by the MSP430FR5858IRHAR?
The MSP430FR5858IRHAR supports two enhanced universal serial communication interfaces: eUSCI_A0 and eUSCI_A1 (UART, IrDA, SPI) and eUSCI_B0 (I²C, SPI). It also includes hardware UART and I²C bootloaders (BSL). UART-based BSL uses P2.0 (TX) and P2.1 (RX), while I²C BSL uses P1.6 (SDA) and P1.7 (SCL) - all verified in the Signal Descriptions table and Pin Diagrams for the MSP430FR5858IRHAR.
MSP430FR5858IRHAR 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:
- 48KB (48K 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:
MSP430FR5858IRHAR FAQ
1.How can I place an order for MSP430FR5858IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5858IRHAR 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 MSP430FR5858IRHAR reliable?
The price and inventory of MSP430FR5858IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5858IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5858IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5858IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5858IRHAR?
MSP430FR5858IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5858IRHAR 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 MSP430FR5858IRHAR?
For technical support, including MSP430FR5858IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5858IRHAR requirements.
6.How does Aetrix verify that MSP430FR5858IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5858IRHAR 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 MSP430FR5858IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5858IRHAR?
All MSP430FR5858IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5858IRHAR, 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 MSP430FR5858IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5858IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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