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Texas Instruments MSP430FR5889IRGCT
- Part No.:
- MSP430FR5889IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5889IRGCT.pdf
- Description:
- IC MCU 16BIT 128KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MSP430FR5889IRGCT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 128KB FRAM, 2KB RAM, 12-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 standby at 0.35 µA typical - optimized for battery-powered water/heat meters and portable data loggers.
For engineers reviewing the MSP430FR5889IRGCT datasheet, MSP430FR5889IRGCT pinout, MSP430FR5889IRGCT application, or MSP430FR5889IRGCT equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), ESI peripheral for capacitive sensing, 64-pin VQFN package (9 mm × 9 mm), and absence of integrated LCD driver - distinguishing it from MSP430FR688x variants.
Technical Context
The MSP430FR5889IRGCT implements the ULP CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its clock system integrates DCO, LFXT (32 kHz crystal), and HFXT (up to 24 MHz), with automatic calibration and multiple source selection per module.
Peripherals include three eUSCI modules (two UART/IrDA/SPI-capable, one I²C/SPI-capable), five 16-bit timers (TA0–TA3, TB0), 32-bit hardware multiplier, CRC16/CRC32 engines, and a dedicated Extended Scan Interface (ESI) supporting background capacitance measurement across 16 channels - enabling high-precision, low-power fluid/gas volume sensing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation - enables deterministic real-time control with minimal power overhead |
| Nonvolatile Memory | 128KB ferroelectric RAM (FRAM) - supports 10¹⁵ write cycles, 125 ns/word writes, unified program/data/storage space |
| RAM | 2KB SRAM - used for stack, variables, and DMA buffers; retains data in LPM3/LPM4 |
| ADC | 12-bit ADC12_B with internal reference and sample-and-hold - supports up to 12 external analog inputs, no differential input support |
| Power Consumption | LPM3.5 (RTC active): 0.35 µA typical - enables multi-year battery life in metering applications with periodic wake-up |
| Operating Voltage | 1.8 V to 3.6 V - compatible with coin-cell (e.g., CR2032) and 2xAA alkaline supplies without external regulators |
| Package | VQFN-64 (RGC), 9 mm × 9 mm - surface-mount, thermally enhanced, suitable for compact meter PCBs |
Pinout & Package
VQFN-64 (RGC) package with exposed thermal pad (recommended to connect to VSS). Pin count: 64 terminals. Body size: 9 mm × 9 mm. Pitch: 0.5 mm. Thermal resistance (θJA): 42.5°C/W (JEDEC standard board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, timer, USCI, ADC, comparator functions | Support edge-selectable LPM wakeup, programmable pullup/pulldown, and ESI channel routing - critical for sensor interface and low-power polling |
| P2.0–P2.7 | General-purpose I/O with USCI_A0, TB0, RTCCLK, DMAE0 | UART TX/RX (P2.0/P2.1) usable for BSL or host communication; TB0 pins drive LCD COM lines in other variants but unused here (no LCD_C) |
| P3.0–P3.7 | General-purpose I/O with USCI_B1, USCI_A1, TA1, TB0 | Support dual SPI masters/slaves (e.g., ESI sensor + external flash); TA1 used for precise timing in metering pulse counting |
| P4.0–P4.7 | General-purpose I/O with USCI_B1, UCA0, MCLK, ACLK | Provide secondary SPI/I²C interfaces and clock distribution - enables isolated sensor domain with independent clock gating |
| P5.0–P5.7 | General-purpose I/O with TA1, UCA1, UCB1 | Enable high-speed timer capture (e.g., flow pulse timing) and additional serial links - supports time-of-flight or frequency-based measurement |
| P6.0–P6.7 | General-purpose I/O with LCD segment outputs (not used on MSP430FR5889) | No LCD_C peripheral - these pins default to GPIO only; must be configured as inputs with pullup/down to avoid floating |
| P7.0–P7.7 | General-purpose I/O with TA0, SMCLK, ACLK | TA0 CCR registers support precise event timestamping (e.g., leak detection window); SMCLK routing enables synchronous peripheral clocks |
| P9.0–P9.7 | ESI channel inputs (ESICH0–ESICH3) and test signals (ESITEST0–ESITEST4) | Dedicated ESI analog front-end inputs - enable simultaneous 16-channel capacitance scanning for multi-electrode water meter electrodes |
| PJ.0–PJ.7 | JTAG/SBW debug, HFXIN/HFXOUT, LFXIN/LFXOUT, COUT | HFXIN/HFXOUT support 4–24 MHz crystals; LFXIN/LFXOUT support 32.768 kHz RTC crystal - essential for metrology-grade timekeeping |
| DVCC1/DVCC2/DVCC3 | Digital supply (three independent rails) | Allow localized decoupling near high-speed logic blocks - reduces noise coupling into ESI/ADC domains |
| AVCC1/AVSS1–AVSS3 | Analog supply and ground | Separate analog ground planes required for ESI/ADC accuracy; AVSS3 dedicated to ESI analog section |
| ESIDVCC/ESIDVSS | ESI-specific analog supply and ground | Isolated 3.3 V rail for ESI modulator - prevents digital switching noise from degrading sub-femtofarad capacitance resolution |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, Spy-Bi-Wire debug I/O | Single-wire debug interface enables in-system programming without JTAG header - saves PCB space in sealed meter housings |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power FRAM | 128KB nonvolatile memory with 10¹⁵ write endurance and 125 ns write speed - eliminates wear leveling and enables logging every sensor reading without flash latency |
| Extended Scan Interface (ESI) | Hardware-accelerated capacitance-to-digital conversion across 16 channels - performs background scans during LPM3, freeing CPU for RF or computation tasks |
| Real-Time Clock with Calendar | RTC_C module with alarm, calendar, and 32-kHz crystal support - provides traceable time stamps for billing intervals in utility meters |
| Three eUSCI modules | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B1 (I²C/SPI) - enable concurrent communication with AMR modules, EEPROM, and ESI sensors without software arbitration |
| Five 16-bit timers | TA0–TA3 and TB0 with up to 7 capture/compare registers - support precise pulse-width measurement for turbine flow sensors and PWM-controlled valve drivers |
| 32-bit hardware CRC engine | CRC32 (ISO-3309) and CRC16 (CCITT) - ensures data integrity for firmware updates and meter register storage in noisy utility environments |
Applications
| Water Metering | Heat Cost Allocation |
|---|---|
Use Scenario: Ultrasonic or mechanical water meter with battery life >10 years, requiring hourly flow logging and tamper detection via capacitance sensing. IC Role / Device Role / Timing Role: Primary MCU executing ESI-based electrode self-test, ADC-based temperature compensation, and RTC-governed data upload windows. Use Value: FRAM enables 100% duty-cycle logging at 1 Hz (128KB stores >36 hours of full-resolution data); ESI detects pipe scale buildup via capacitance drift before flow error exceeds ±1%. | Use Scenario: Compact heat cost allocator mounted on radiators, measuring temperature differentials and runtime to allocate heating costs per room. IC Role / Device Role / Timing Role: Sensor hub aggregating Pt1000 RTD readings, driving local display (via external driver), and transmitting via wired M-Bus or wireless sub-GHz link. Use Value: LPM3.5 current (0.35 µA) extends CR2032 battery life to 12+ years; integrated 12-bit ADC eliminates external signal conditioning for RTD bridge circuits. |
| Portable Medical Flowmeter | Data Logger for Industrial Sensors |
Use Scenario: Handheld spirometer measuring inspiratory/expiratory airflow using differential pressure transducers and temperature/humidity sensors. IC Role / Device Role / Timing Role: Real-time signal processor capturing analog waveforms at 1 kHz, computing FEV1/FVC ratios, and storing results in FRAM for clinic upload. Use Value: 128KB FRAM stores >200 full 10-second breath tests with timestamps; CRC32 ensures regulatory-compliant data integrity for FDA submissions. | Use Scenario: Ruggedized environmental logger deployed in remote locations, recording temperature, humidity, and gas concentration every 5 minutes for 5 years. IC Role / Device Role / Timing Role: Autonomous data aggregator with scheduled wake-up (RTC alarm), sensor bias control, and encrypted LoRaWAN transmission. Use Value: Unified FRAM simplifies firmware design - same memory space holds configuration, logs, and crypto keys; ESI monitors battery impedance for end-of-life prediction. |
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 |
|---|---|---|---|
| MSP430FR5969IRGCT | Same 64-pin VQFN package, 64KB FRAM, adds integrated LCD_C driver (320-segment), removes ESI | Suitable for display-centric devices (e.g., handheld testers) but lacks ESI for capacitance-based metering | Select when LCD output is required and ESI is unnecessary; not a functional substitute for water/heat meter designs. |
| MSP430FR6889IPM | 64-pin LQFP package, 128KB FRAM, includes LCD_C (320-segment) and ESI - identical peripheral set but different package | Enables same ESI-based metering functionality but requires larger PCB footprint and lacks VQFN thermal performance | Choose for prototyping with through-hole-compatible layout or when thermal pad soldering is impractical; pinout differs significantly from RGC. |
Compared with MSP430FR5889IRGCT, the MSP430FR5969IRGCT trades ESI for LCD capability - making it unsuitable for capacitance-sensing metering - while the MSP430FR6889IPM offers identical functionality in LQFP, sacrificing thermal efficiency and board area for assembly simplicity.
Availability
MSP430FR5889IRGCT is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed traceability for ISO 13485 and MID-certified designs.
Supply support for MSP430FR5889IRGCT 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 specializing in analog, embedded processing, and connectivity technologies, with over 50 years of innovation in low-power design and industrial-grade reliability.
The MSP430 ULP FRAM portfolio targets energy-constrained applications like utility metering and portable instrumentation, combining FRAM's write endurance with a holistic ultra-low-power architecture to extend battery life beyond 10 years.
FAQ
What is the maximum operating frequency of the MSP430FR5889IRGCT?
The MSP430FR5889IRGCT supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO) or external HFXT crystal. This frequency is fully operational across the entire 1.8 V to 3.6 V supply range and enables deterministic real-time execution for time-critical metering algorithms such as flow pulse counting and ESI scan synchronization.
Does the MSP430FR5889IRGCT include an integrated LCD controller?
No, the MSP430FR5889IRGCT does not include the LCD_C peripheral. Unlike the MSP430FR688x series, this variant omits the integrated LCD driver - confirmed by device comparison tables and absence of LCD-related pins (e.g., COM/SEG) in its RGC pinout. Designers requiring display output must use an external LCD driver or select an MSP430FR688x part.
How many external analog inputs does the ADC12_B module support on the MSP430FR5889IRGCT?
The ADC12_B module on the MSP430FR5889IRGCT supports up to 12 external analog input channels. This is explicitly stated in the device comparison table and functional block diagram. It does not support differential input pairs or internal sensor channels (e.g., temperature sensor) in this variant - all 12 inputs are routed exclusively to P1–P9 pins designated for analog use.
What debug interface is supported by the MSP430FR5889IRGCT?
The MSP430FR5889IRGCT supports Spy-Bi-Wire (SBW) debug via the TEST/SBWTCK and RST/NMI/SBWTDIO pins - a two-wire interface compatible with TI's MSP-FET and IAR/Code Composer Studio. JTAG is not available on this 64-pin VQFN package; SBW provides full flash programming, breakpoint, and real-time variable monitoring with minimal PCB footprint.
Is the Extended Scan Interface (ESI) available on the MSP430FR5889IRGCT, and how is it implemented?
Yes, the Extended Scan Interface (ESI) is fully implemented on the MSP430FR5889IRGCT and is accessible via dedicated pins P9.0–P9.7 (ESICH0–ESICH3, ESITEST0–ESITEST4) and ESIDVCC/ESIDVSS. It provides hardware-accelerated capacitance measurement across up to 16 channels with sub-femtofarad resolution, operating autonomously during LPM3 to reduce system power - a core feature for water/heat meter electrode diagnostics.
MSP430FR5889IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-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:
- 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:
MSP430FR5889IRGCT FAQ
1.How can I place an order for MSP430FR5889IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5889IRGCT 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 MSP430FR5889IRGCT reliable?
The price and inventory of MSP430FR5889IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5889IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430FR5889IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5889IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5889IRGCT?
MSP430FR5889IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5889IRGCT 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 MSP430FR5889IRGCT?
For technical support, including MSP430FR5889IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5889IRGCT requirements.
6.How does Aetrix verify that MSP430FR5889IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5889IRGCT 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 MSP430FR5889IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430FR5889IRGCT?
All MSP430FR5889IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5889IRGCT, 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 MSP430FR5889IRGCT part is unused and in its original packaging.
Return procedure for MSP430FR5889IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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