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Texas Instruments MSP430FR58891IRGCT
- Part No.:
- MSP430FR58891IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR58891IRGCT.pdf
- Description:
- IC MCU 16BIT 128KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
MSP430FR58891IRGCT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 128KB FRAM, 2KB RAM, 16-bit ADC with 12 external inputs, RTC with calendar, and Extended Scan Interface (ESI) for metering applications. It operates from 1.8 V to 3.6 V and supports LPM3.5 mode at 0.35 µA typical for real-time clock operation.
For engineers reviewing the MSP430FR58891IRGCT datasheet, MSP430FR58891IRGCT pinout, MSP430FR58891IRGCT application, or MSP430FR58891IRGCT equivalent, key selection criteria include ESI peripheral support for ultrasonic flow sensing, FRAM endurance (1015 write cycles), 64-pin VQFN package thermal performance, and I²C bootloader compatibility.
Technical Context
The MSP430FR58891IRGCT integrates a 16-bit CPUXV2 core with up to 16-MHz DCO clock, three-channel DMA, and dual eUSCI modules supporting UART, SPI, and I²C-including hardware I²C bootloader (BSL). Its ESI peripheral enables background capacitive sensing for water/heat metering without CPU intervention.
Power management includes seven low-power modes, with LPM3.5 (RTC active) drawing 0.35 µA and LPM4.5 (shutdown) drawing 0.02 µA. The device uses a unified FRAM memory space for code, data, and storage, eliminating separate flash/EEPROM programming sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 with 16-MHz max DCO frequency; enables deterministic real-time control in energy-constrained metering systems. |
| Nonvolatile Memory | 128KB FRAM with 1015 write endurance and 125 ns/word write speed; eliminates wear leveling and enables frequent logging without degradation. |
| ADC Resolution | 12-bit SAR ADC with internal reference and sample-and-hold; supports up to 12 external analog inputs for sensor signal acquisition. |
| RTC Functionality | Real-time clock with calendar, alarm, and LPM3.5 operation at 0.35 µA; maintains timekeeping during ultra-low-power battery operation. |
| ESI Peripheral | Extended Scan Interface with dedicated hardware for capacitive touch and ultrasonic transducer excitation; offloads measurement tasks from CPU. |
| Supply Voltage Range | 1.8 V to 3.6 V; compatible with single-cell Li-ion, 2xAA, or 3xAAA battery configurations without external regulators. |
| I/O Count | 48 general-purpose I/O pins with capacitive touch capability on all P1–P10 and PJ ports; enables direct electrode interfacing in metering designs. |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm, 0.5 mm pitch, thermally enhanced exposed pad (TI recommends connecting pad to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with TA0/TA1 timers, ADC, comparator, and ESI test functions | Supports timer capture/compare, analog input, and ESI calibration signals-critical for precision metering timing and sensor interface. |
| P2.0–P2.7 | General-purpose I/O with UCA0 UART/SPI, TB0 timer, RTCCLK, and DMAE0 | Enables serial communication (UART BSL not active; I²C BSL used), timer-based waveform generation, and event-triggered DMA transfers. |
| P3.0–P3.7 | General-purpose I/O with UCB1 I²C/SPI, UCA1 UART/SPI, and TB0 timer | Provides dual serial interfaces: UCB1 supports I²C BSL and sensor communication; UCA1 adds UART/SPI for host connectivity or diagnostics. |
| P4.0–P4.7 | General-purpose I/O with UCB1 I²C/SPI, MCLK, ACLK, and UCA0 UART/SPI | Delivers clock domain flexibility (MCLK/ACLK) and redundant serial channels-supports simultaneous sensor bus and debug interface operation. |
| P5.0–P5.7 | General-purpose I/O with TA1 timer, UCA1 UART/SPI, and UCB1 STE | Extends timer resources (TA1 CCR0–CCR2) and provides additional SPI slave transmit enable for daisy-chained peripherals. |
| P6.0–P6.7 | General-purpose I/O with LCD segment outputs, COM lines, and comparator output | Drives up to 320-segment LCD directly; supports meter display without external controller-reduces BOM and power consumption. |
| P9.0–P9.7 | ESI channel inputs (ESICH0–ESICH3), ESI current inputs (ESICI0–ESICI3), and test signals | Dedicated ESI analog front-end for ultrasonic transducer excitation and echo capture-enables high-accuracy flow measurement in water/heat meters. |
| PJ.0–PJ.7 | JTAG/SBW debug, HFXIN/HFXOUT, LFXIN/LFXOUT, and system clocks | Supports production programming via Spy-Bi-Wire and crystal oscillator connections for precise timing in metrology-grade applications. |
Key Features
| Feature | Design Value |
|---|---|
| Unified FRAM Memory | 128KB single-space memory eliminates code/data partitioning overhead and enables atomic firmware updates without erase cycles. |
| ESI Hardware Accelerator | Performs capacitive or ultrasonic scan sequences autonomously-reduces CPU wakeups and extends battery life in portable meters. |
| I²C Bootloader (BSL) | Hardware-implemented I²C BSL on P1.6 (BSLSDA) and P1.7 (BSLSCL) enables field firmware updates without JTAG hardware. |
| Capacitive Touch I/O | All 48 GPIOs support capacitive sensing without external components-reduces component count and PCB area in user-interface designs. |
| Low-Power RTC Domain | LPM3.5 mode maintains calendar and alarm functionality at 0.35 µA, enabling decade-long battery operation in utility meters. |
Applications
| Water Metering | Heat Cost Allocation |
|---|---|
Use Scenario: Ultrasonic time-of-flight measurement in residential/commercial water meters with battery life >10 years. IC Role / Device Role / Timing Role: MSP430FR58891IRGCT executes ESI-driven transducer excitation, echo capture, and digital signal processing while maintaining RTC for billing intervals. Use Value: Eliminates external ADC and DSP, reduces bill-of-materials, and achieves ±0.5% flow accuracy per OIML R49. | Use Scenario: Thermal energy allocation in multi-tenant buildings using temperature differential and flow rate measurements. IC Role / Device Role / Timing Role: MSP430FR58891IRGCT acquires RTD/thermistor data via 12-bit ADC, computes energy consumption hourly, and logs results to FRAM. Use Value: FRAM's 1015 write endurance supports 10+ years of minute-level logging without wear-out concerns. |
| Portable Medical Flowmeter | Data Logger for Utility Monitoring |
Use Scenario: Battery-powered respiratory flow sensor for spirometry or anesthesia delivery systems requiring FDA Class II compliance. IC Role / Device Role / Timing Role: MSP430FR58891IRGCT conditions analog pressure signals, applies digital filtering, and timestamps events using integrated RTC. Use Value: LPM4.5 shutdown current of 0.02 µA enables >5-year shelf life; FRAM ensures tamper-proof audit trail storage. | Use Scenario: Remote environmental sensor node collecting temperature, humidity, and voltage data for smart grid infrastructure. IC Role / Device Role / Timing Role: MSP430FR58891IRGCT samples sensors at scheduled intervals, compresses data in FRAM, and transmits via UART/I²C to gateway. Use Value: Unified memory simplifies firmware design; ESI can be repurposed for capacitive soil moisture sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5889IRGC | UART bootloader instead of I²C BSL; identical FRAM, ADC, ESI, and pinout. | Requires UART interface for field updates; unsuitable where only I²C bus is available. | Select MSP430FR5889IRGC if UART-based programming and debugging are preferred over I²C. |
| MSP430FR5969IRHBT | 64KB FRAM (half capacity), no ESI peripheral, 48-pin VQFN package. | Lacks hardware-accelerated ultrasonic/capacitive scanning; limited to simpler sensing topologies. | Select MSP430FR5969IRHBT for cost-sensitive, non-metering applications where ESI is unnecessary. |
Compared with MSP430FR5889IRGC and MSP430FR5969IRHBT, the MSP430FR58891IRGCT uniquely combines full ESI capability, I²C BSL, and 128KB FRAM in a 64-pin VQFN-making it optimal for battery-powered metrology devices requiring long-term reliability and field-upgradable firmware.
Availability
MSP430FR58891IRGCT is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical flowmeter designs requiring stable component supply, long-lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR58891IRGCT 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 company delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430 ULP FRAM portfolio targets energy-constrained sensing and measurement systems-designed to extend battery life while enabling high-frequency data logging and robust firmware updates.
FAQ
What is the primary differentiator of the MSP430FR58891IRGCT versus other MSP430FR58xx variants?
The MSP430FR58891IRGCT features an I²C hardware bootloader (BSL) instead of UART BSL, enabling firmware updates over existing I²C sensor buses without adding UART lines. This configuration, combined with full ESI support and 128KB FRAM, makes MSP430FR58891IRGCT ideal for sealed, battery-operated metering devices where physical access for programming is impractical.
Does the MSP430FR58891IRGCT support real-time clock operation in ultra-low-power modes?
Yes, the MSP430FR58891IRGCT supports RTC operation in LPM3.5 mode with typical current consumption of 0.35 µA. This allows continuous timekeeping with calendar and alarm functions while preserving multi-year battery life-essential for utility meter billing cycles and timestamped data logging.
How does the Extended Scan Interface (ESI) in the MSP430FR58891IRGCT improve metering accuracy?
The ESI in MSP430FR58891IRGCT performs autonomous ultrasonic transducer excitation, echo capture, and signal conditioning without CPU involvement. This eliminates software timing jitter, enables sub-microsecond resolution for time-of-flight calculations, and reduces system power by keeping the CPU in deep sleep-directly improving flow measurement repeatability and battery longevity.
What package type and thermal characteristics apply to the MSP430FR58891IRGCT?
The MSP430FR58891IRGCT uses a 64-pin VQFN (RGC) package measuring 9 mm × 9 mm with 0.5 mm pitch and an exposed thermal pad. TI specifies θJA = 42.5°C/W and θJC = 5.5°C/W, enabling reliable operation up to 85°C ambient in compact meter enclosures without forced airflow.
Can the MSP430FR58891IRGCT drive an LCD display directly?
Yes, the MSP430FR58891IRGCT integrates LCD_C peripheral supporting up to 320 segments with static, 2–8 multiplex configurations. It drives common-electrode (COM) and segment lines directly from P6.x and P9.x pins-eliminating external LCD controllers and reducing power consumption in utility meter displays.
MSP430FR58891IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 48
- Program Memory Size:
- 128KB (128K 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR58891IRGCT FAQ
1.How can I place an order for MSP430FR58891IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR58891IRGCT 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 MSP430FR58891IRGCT reliable?
The price and inventory of MSP430FR58891IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR58891IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430FR58891IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR58891IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR58891IRGCT?
MSP430FR58891IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR58891IRGCT 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 MSP430FR58891IRGCT?
For technical support, including MSP430FR58891IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR58891IRGCT requirements.
6.How does Aetrix verify that MSP430FR58891IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430FR58891IRGCT 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 MSP430FR58891IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430FR58891IRGCT?
All MSP430FR58891IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR58891IRGCT, 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 MSP430FR58891IRGCT part is unused and in its original packaging.
Return procedure for MSP430FR58891IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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