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Texas Instruments MSP430FR6877IPNR
- Part No.:
- MSP430FR6877IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FR6877IPNR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,842
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Product details
Overview
MSP430FR6877IPNR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, and integrated LCD driver supporting up to 320 segments. It operates from 1.8 V to 3.6 V, delivers 100 µA/MHz active current, and features RTC, 12-bit ADC with 16 external channels, and dual eUSCI modules for UART/I²C/SPI. It targets battery-powered utility metering and portable data loggers.
For engineers reviewing the MSP430FR6877IPNR datasheet, MSP430FR6877IPNR pinout, MSP430FR6877IPNR application, or MSP430FR6877IPNR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (0.35 µA), 80-pin LQFP package compatibility, and UART/I²C bootloader support.
Technical Context
The MSP430FR6877IPNR implements the CPUXV2 16-bit RISC core with hardware multiplier and three-channel DMA, enabling deterministic real-time processing in ultra-low-power modes. Its clock system integrates DCO, LFXT (32 kHz crystal), and HFXT with automatic calibration, supporting precise timing across LPM0–LPM4.5 states.
Peripherals include two independent eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (I²C/SPI) modules, five 16-bit timers (TA0/TA1/TA2/TA3/TB0) with up to seven capture/compare registers each, and an integrated 320-segment LCD_C controller with contrast control and internal charge pump.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC with 16 registers and 32-bit hardware multiplier - enables fast math-intensive firmware without external co-processor |
| FRAM Capacity | 64 KB unified nonvolatile memory - supports simultaneous code execution and data logging with no erase delay or wear leveling overhead |
| ADC Resolution | 12-bit SAR ADC with 16 external input channels and internal reference - delivers calibrated sensor readings without external voltage reference IC |
| Low-Power Mode LPM3.5 | 0.35 µA typical with RTC active - sustains calendar timekeeping and wake-on-alarm for multi-year battery life in sealed meters |
| LCD Driver | Supports up to 320 segments with static/2–8 mux and internal contrast control - eliminates external LCD bias generator and reduces BOM count |
| Package | 80-pin LQFP (12 mm × 12 mm) - compatible with standard surface-mount assembly and provides 63 GPIOs including capacitive touch I/O on all ports P1–P10/PJ |
| Supply Voltage Range | 1.8 V to 3.6 V - matches primary lithium and alkaline battery discharge profiles without external regulators in many applications |
Pinout & Package
80-pin LQFP (PN) package, 12 mm × 12 mm body size, 0.5 mm pitch. Pinout validated per TI SLASE33C Rev. C (August 2018), Figure 4-2 and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with timer/USCI/LCD functions | Support capacitive touch sensing without external components; TA0/TA1 capture/compare and UCB0/UCB1 I²C/SPI interfaces share pins |
| P2.0–P2.7 | GPIO with USCI_A0/TB0/LCD segment outputs | UCA0TXD/UCA0RXD enable UART bootloader; TB0 CCR0–CCR6 drive up to 8 LCD commons (COM0–COM7) |
| P3.0–P3.7 | GPIO with USCI_A1/USCI_B1/TB0 functions | UCA1 and UCB1 provide second UART and I²C interfaces; TB0.0–TB0.3 support additional LCD common outputs |
| P5.0–P5.7 | GPIO with TA1/MCLK/ACLK/RTCCLK | TA1.0–TA1.2 serve as timer inputs/outputs; MCLK/ACLK outputs aid clock domain verification and debugging |
| P6.0–P6.7 | GPIO with LCD_V2/V3/V5, COM0–COM3, COUT | R23/R13/LCDREF pins configure analog LCD bias voltages; COUT feeds comparator output to timer or GPIO |
| PJ.0–PJ.7 | JTAG/Spy-Bi-Wire debug + HFXIN/HFXOUT/LFXIN/LFXOUT | Supports production programming via SBW; dedicated crystal connections ensure stable high- and low-frequency clock sources |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB nonvolatile memory with 10¹⁵ write endurance and 125 ns word write - enables frequent sensor data logging without flash wear-out concerns |
| Integrated LCD Controller | Drives up to 320 segments with programmable mux (static to 8-mux) and internal contrast control - removes need for external LCD bias IC and saves PCB space |
| Ultra-Low-Power RTC | 0.35 µA typical in LPM3.5 mode with calendar and alarm - maintains accurate timekeeping for metering intervals while preserving battery life |
| Capacitive Touch I/O | All P1–P10 and PJ pins support CSD without external components - enables robust front-panel user interface with minimal BOM and layout complexity |
| Dual eUSCI Modules | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0/B1 (I²C/SPI) - supports simultaneous communication with host MCU, display, and sensor networks |
| Hardware CRC Engine | CRC16 and CRC32 accelerators - offloads checksum computation from CPU during firmware updates and data transmission |
Applications
| Water Metering | Heat Cost Allocation |
|---|---|
Use Scenario: Battery-powered ultrasonic or mechanical water meter with pulse counting, temperature compensation, and local display. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD display, and logging flow data to FRAM. Use Value: 64KB FRAM enables decade-long hourly consumption logs; LPM3.5 RTC ensures accurate billing intervals with <0.4 µA sleep current. |
Use Scenario: Compact heat cost allocator mounted on radiators, measuring temperature differential and runtime. IC Role / Device Role / Timing Role: Sensor fusion hub collecting RTD/thermistor data, computing energy share, and updating segmented LCD. Use Value: Integrated 12-bit ADC with internal reference eliminates external precision references; capacitive touch I/O enables sealed, vandal-resistant UI. |
| Portable Medical Logging | Data Acquisition Node |
Use Scenario: Handheld blood glucose or ECG monitor requiring long battery life, secure data storage, and clear LCD readout. IC Role / Device Role / Timing Role: Real-time signal acquisition controller with analog front-end interface, FRAM-based secure data vault, and LCD driver. Use Value: FRAM's radiation resistance and nonmagnetic properties meet medical device reliability standards; 10¹⁵ write cycles support lifetime patient data logging. |
Use Scenario: Industrial environmental sensor node measuring humidity, pressure, and air quality, transmitting via UART to gateway. IC Role / Device Role / Timing Role: Edge-processing node performing local averaging, timestamping, and burst-mode wireless transmission. Use Value: Three-channel DMA moves ADC samples directly to FRAM without CPU intervention; eUSCI_A0 UART with auto-baud detection simplifies host integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6879IPN | 128KB FRAM, same 80-pin LQFP package, identical peripherals and pinout | Higher memory capacity suits firmware-over-the-air updates or extended data buffering | Select when >64KB nonvolatile storage is required without changing PCB layout |
| MSP430FR6877IPZ | Same 64KB FRAM, but 100-pin LQFP (14 mm × 14 mm) with 83 GPIOs and additional LCD segments | Extra I/O supports expanded sensor arrays or larger displays beyond 320 segments | Choose when more GPIOs or LCD segment count is needed; requires PCB redesign |
Compared with MSP430FR6879IPN, the MSP430FR6877IPNR offers reduced FRAM at lower cost and power for simpler metering; versus MSP430FR6877IPZ, it trades I/O count and package size for compactness and thermal efficiency in space-constrained designs.
Availability
MSP430FR6877IPNR is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical logging requiring stable component supply and long-term industrial availability.
Supply support for MSP430FR6877IPNR 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, with over 50 years of innovation in low-power microcontrollers and precision analog.
The MSP430 ULP FRAM portfolio targets energy-constrained applications like utility meters and portable instrumentation, combining ferroelectric memory with holistic ultra-low-power architecture to extend battery life without sacrificing performance.
FAQ
What is the maximum operating frequency of the MSP430FR6877IPNR?
The MSP430FR6877IPNR supports up to 16 MHz system clock via its factory-trimmed DCO or external HFXT crystal. This frequency is fully supported across all operating voltage ranges (1.8 V–3.6 V) and enables real-time processing of sensor data, LCD refresh, and communication protocols without throttling.
Does the MSP430FR6877IPNR support hardware encryption or secure boot?
No, the MSP430FR6877IPNR does not include AES or other hardware cryptographic accelerators. It provides true random number seed generation for software-based RNG, but lacks dedicated security peripherals. For secure boot or encrypted firmware, external secure elements or software-only implementations are required.
Can the MSP430FR6877IPNR drive a 4-mux LCD with 240 segments?
Yes, the MSP430FR6877IPNR's LCD_C module supports static, 2-, 3-, 4-, 6-, and 8-mux configurations and can drive up to 320 segments. A 4-mux design with 240 segments falls within its capability and uses only a subset of its COM and SEG resources, leaving headroom for future display expansion.
What is the function of the PJ.4 and PJ.5 pins on the MSP430FR6877IPNR?
PJ.4 and PJ.5 on the MSP430FR6877IPNR are dedicated to the low-frequency crystal oscillator: PJ.4 is LFXIN (low-frequency crystal input) and PJ.5 is LFXOUT (low-frequency crystal output). These pins connect to a 32.768 kHz tuning-fork crystal to provide the stable timebase for the RTC and LPM3 operation.
Is the MSP430FR6877IPNR pin-compatible with the MSP430FR6879IPN?
Yes, the MSP430FR6877IPNR and MSP430FR6879IPN share identical 80-pin LQFP (PN) packages, pin assignments, and peripheral mappings. The only functional difference is FRAM capacity (64KB vs. 128KB); all I/O, timer, USCI, and analog functions map identically, enabling drop-in replacement where memory requirements allow.
MSP430FR6877IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- 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, LCD, POR, PWM, WDT
- Number of I/O:
- 63
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6877IPNR FAQ
1.How can I place an order for MSP430FR6877IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6877IPNR 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 MSP430FR6877IPNR reliable?
The price and inventory of MSP430FR6877IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6877IPNR is usually 5 days.
3.What payment methods are accepted for MSP430FR6877IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6877IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6877IPNR?
MSP430FR6877IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6877IPNR 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 MSP430FR6877IPNR?
For technical support, including MSP430FR6877IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6877IPNR requirements.
6.How does Aetrix verify that MSP430FR6877IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6877IPNR 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 MSP430FR6877IPNR meets industry standards.
7.What is the process for return or replacement of MSP430FR6877IPNR?
All MSP430FR6877IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6877IPNR, 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 MSP430FR6877IPNR part is unused and in its original packaging.
Return procedure for MSP430FR6877IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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