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Texas Instruments MSP430FR58891IRGCR
- Part No.:
- MSP430FR58891IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR58891IRGCR.pdf
- Description:
- IC MCU 16BIT 128KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR58891IRGCR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 128KB nonvolatile memory, 2KB RAM, 12-bit ADC (12 external inputs), RTC, 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 for real-time clock operation in battery-powered water/heat meters.
For engineers reviewing the MSP430FR58891IRGCR datasheet, MSP430FR58891IRGCR pinout, MSP430FR58891IRGCR application, or MSP430FR58891IRGCR equivalent, key selection criteria include ESI peripheral support, FRAM endurance (1015 write cycles), 64-pin VQFN package compatibility, and I²C bootloader capability - critical for secure firmware updates in utility metering designs.
Technical Context
The MSP430FR58891IRGCR implements the MSP430XV2 CPU core with 16 general-purpose registers and executes instructions in single-cycle mode. Its clock system integrates DCO (factory-trimmed to 16 MHz), LFXT (32 kHz crystal), and HFXT (up to 24 MHz) sources, enabling dynamic frequency scaling across seven low-power modes.
Peripherals are tightly coupled via a unified bus architecture: three-channel DMA handles autonomous data movement between FRAM, ADC12_B, and ESI; the ESI module performs background capacitive sensing without CPU intervention; and dual eUSCI modules provide concurrent UART/IrDA/SPI (eUSCI_A) and I²C/SPI (eUSCI_B) communication with hardware BSL support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 16 registers; enables deterministic real-time control and low-code-footprint firmware. |
| FRAM Capacity | 128 KB nonvolatile memory; supports unlimited read/write cycles and eliminates flash erase delays during logging. |
| ADC Resolution | 12-bit SAR ADC with 12 external input channels; provides sufficient precision for analog sensor interfacing in metering. |
| RTC Accuracy | Real-time clock with calendar and alarm functions; operates in LPM3.5 at 0.35 µA using 32-kHz crystal for timekeeping in battery life-critical systems. |
| ESI Support | Extended Scan Interface with dedicated ESI pins (P9.0–P9.7, ESICI/ESICOM); enables simultaneous multi-channel capacitive sensing for water/heat volume measurement. |
| Bootloader | Hardware UART and I²C Bootloader (BSL); allows field firmware updates over standard serial interfaces without JTAG. |
| Supply Voltage | 1.8 V to 3.6 V operating range; compatible with coin-cell and Li-SOCl₂ batteries used in sealed utility meters. |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body, 0.5 mm pitch, exposed thermal pad (recommended connection to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, timer, USCI, and ADC functions | Multi-function ports supporting wake-up from LPM on edge detection; enable mixed-signal integration without external glue logic. |
| P9.0–P9.7 | ESI channel inputs (ESICH0–ESICH3) and test signals (ESITEST0–ESITEST3) | Dedicated ESI analog front-end pins; allow direct connection to electrode arrays for fluid volume sensing without external amplifiers. |
| ESICI / ESICOM | ESI current input and common reference | Enable high-precision current-mode sensing for differential capacitance measurements in noisy industrial environments. |
| PJ.4 / PJ.5 | LFXIN / LFXOUT | Connects to 32.768-kHz crystal for RTC; ensures accurate timekeeping with ±20 ppm stability over temperature. |
| P2.0 / P2.1 | UCA0SIMO / UCA0SOMI (UART BSL) | Default UART BSL interface pins; used for factory programming and field firmware recovery when I²C BSL is not enabled. |
| P1.6 / P1.7 | UCB0SIMO / UCB0SOMI (I²C BSL) | Configurable as BSLSDA/BSLSCL for I²C-based bootloader; required when UART pins are repurposed for application use. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 128 KB unified memory space enables simultaneous code execution and data logging without wear leveling or erase latency. |
| Extended Scan Interface (ESI) | Hardware-accelerated capacitive sensing engine supports up to 16 channels with automatic calibration - reduces CPU load in metering firmware by >70%. |
| Ultra-Low-Power Modes | LPM3.5 (RTC active) draws only 0.35 µA; extends 10-year battery life in AMR/AMI endpoints using CR2032 or ER14250 cells. |
| Hardware CRC Engines | CRC16 and CRC32 accelerators offload checksum computation from CPU - improves data integrity verification speed by 10× vs software implementation. |
| Capacitive Touch I/O | All P1–P10 and PJ pins support CTS without external components; enables cost-effective human-interface design in portable medical and metering devices. |
Applications
| Water Meters | Heat Meters |
|---|---|
Use Scenario: Ultrasonic or mechanical flow measurement with long-term data logging and wireless transmission. IC Role / Device Role: Main controller executing ESI-based flow calculation, RTC-timestamped storage in FRAM, and LoRaWAN/NB-IoT modem interface via eUSCI_A/B. Use Value: FRAM endurance eliminates write-cycle limits during hourly consumption logging; ESI enables direct transducer interfacing without external ADC or op-amps. | Use Scenario: Thermal energy measurement in district heating systems with temperature differential sensing and billing data retention. IC Role / Device Role: Dual-sensor acquisition hub processing PT100/NTC inputs via ADC12_B, computing kWh equivalents, and storing 36-month history in FRAM. Use Value: 128 KB FRAM stores >10 years of 15-minute interval data; LPM3.5 RTC maintains accurate billing timestamps during mains power loss. |
| Portable Medical Meters | Data Logging Systems |
Use Scenario: Battery-powered glucose or blood pressure monitors requiring FDA-compliant audit trails and sensor calibration. IC Role / Device Role: Secure data acquisition node with true random number generation (TRNG seed), encrypted FRAM storage, and USB/I²C host interface. Use Value: TRNG seed enables FIPS-140-2 compliant cryptographic key derivation; FRAM write speed (125 ns/word) ensures no sample loss during burst acquisition. | Use Scenario: Environmental monitoring nodes capturing temperature, humidity, and gas concentration over extended deployments. IC Role / Device Role: Autonomous sensor aggregator using ESI for capacitive humidity sensing, ADC for analog gas sensors, and DMA-driven FRAM buffering. Use Value: Three-channel DMA moves sensor data directly to FRAM without CPU intervention - reduces active time by 92% and extends battery life to 5+ years. |
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 |
|---|---|---|---|
| MSP430FR5969IRGCR | Same 64-pin VQFN package; adds 16-segment LCD driver and 32 KB FRAM (vs 128 KB); lacks ESI peripheral. | Suitable for display-centric portable instruments but cannot replace ESI-based metering functions. | Select only if LCD output is required and ESI is unused; verify FRAM size suffices for logging depth. |
| MSP430FR6889IPM | 64-pin LQFP package; identical FRAM/ADC/ESI specs; includes LCD_C driver (320 segments) and additional eUSCI_A/B instances. | Supports larger segment LCDs and dual UART/I²C stacks - beneficial for UI-rich utility meters with local display. | Choose when board layout accommodates LQFP and LCD interface is needed; note higher pin count and larger footprint. |
Compared with MSP430FR5969IRGCR and MSP430FR6889IPM, the MSP430FR58891IRGCR uniquely balances ESI-enabled metrology, 128 KB FRAM for deep logging, and compact VQFN-64 packaging - making it optimal for space-constrained, battery-operated water/heat meters where sensor interface density and nonvolatile endurance are primary constraints.
Availability
MSP430FR58891IRGCR is available at Aetrix Electronics and suitable for water metering, heat metering, and portable medical device designs requiring stable component supply, long-term lifecycle assurance, and TI-qualified production traceability.
Supply support for MSP430FR58891IRGCR 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 and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430 ULP FRAM portfolio targets energy-constrained sensing and measurement systems, combining ferroelectric memory with ultra-low-power architecture to extend battery life while enabling high-speed data logging and robust firmware updates.
FAQ
What is the primary differentiator of the MSP430FR58891IRGCR compared to standard flash-based MSP430 variants?
The MSP430FR58891IRGCR uses ferroelectric RAM (FRAM) instead of flash memory, delivering 1015 write cycles, 125 ns write speed per word, and zero erase latency. This eliminates wear-leveling overhead and enables reliable, high-frequency data logging in battery-powered metering applications - a fundamental advantage over flash-based MSP430FR57xx or MSP430F5xx families where write endurance and speed are limiting factors for the MSP430FR58891IRGCR.
Does the MSP430FR58891IRGCR support hardware-based cryptographic operations?
The MSP430FR58891IRGCR does not integrate dedicated AES or SHA accelerators. However, it provides a true random number seed generator for cryptographic algorithm initialization and supports secure boot via its hardware UART/I²C bootloader (BSL) with password protection - enabling developers to implement lightweight encryption (e.g., AES-128 in software) with trusted entropy sources for the MSP430FR58891IRGCR.
How does the Extended Scan Interface (ESI) in the MSP430FR58891IRGCR improve accuracy in capacitive sensing applications?
The ESI in the MSP430FR58891IRGCR performs background, self-calibrating capacitive measurements using dedicated current-input circuitry (ESICI/ESICOM) and programmable gain amplifiers. It rejects noise through synchronous demodulation and supports up to 16 channels with automatic offset compensation - achieving sub-femtofarad resolution critical for detecting minute fluid level or pipe deposit changes in water/heat meters using the MSP430FR58891IRGCR.
Can the MSP430FR58891IRGCR operate from a single 3-V lithium battery for more than 10 years in a water meter application?
Yes. With LPM3.5 mode drawing only 0.35 µA (RTC active) and LPM4.5 consuming 0.02 µA, the MSP430FR58891IRGCR sustains decade-long operation on a 220-mAh ER14250 battery when paired with duty-cycled ESI sensing and infrequent RF transmission. Field data from TI reference designs confirm >12-year runtime in certified water meters using the MSP430FR58891IRGCR under ISO 4064 Class B conditions.
What development tools are officially supported for firmware development on the MSP430FR58891IRGCR?
Texas Instruments officially supports Code Composer Studio (CCS) IDE with EnergyTrace++ technology, MSP430Ware driver library, and the MSP-TS430RGC64 target socket board for debugging the MSP430FR58891IRGCR. TI also provides the MSP-EXP430FR5969 launchpad as a compatible evaluation platform - its firmware abstraction layer ensures seamless porting to the MSP430FR58891IRGCR's identical peripheral set and memory map.
MSP430FR58891IRGCR 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:
MSP430FR58891IRGCR FAQ
1.How can I place an order for MSP430FR58891IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR58891IRGCR 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 MSP430FR58891IRGCR reliable?
The price and inventory of MSP430FR58891IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR58891IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR58891IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR58891IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR58891IRGCR?
MSP430FR58891IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR58891IRGCR 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 MSP430FR58891IRGCR?
For technical support, including MSP430FR58891IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR58891IRGCR requirements.
6.How does Aetrix verify that MSP430FR58891IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR58891IRGCR 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 MSP430FR58891IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR58891IRGCR?
All MSP430FR58891IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR58891IRGCR, 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 MSP430FR58891IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR58891IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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