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Texas Instruments MSP430FR6987IPN
- Part No.:
- MSP430FR6987IPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FR6987IPN.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,944
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Product details
Overview
MSP430FR6987IPN from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in an 80-pin LQFP package, featuring 64KB FRAM, 2KB RAM, 12-bit ADC with 16 external inputs, integrated LCD driver (up to 320 segments), and Extended Scan Interface (ESI) for precision metering. It operates from 1.8 V to 3.6 V and supports real-time clock (RTC) with calendar and alarm functions.
For engineers reviewing the MSP430FR6987IPN datasheet, MSP430FR6987IPN pinout, MSP430FR6987IPN application, or MSP430FR6987IPN equivalent, key selection criteria include ESI-based analog front-end capability, FRAM endurance (1015 write cycles), low-power RTC operation (0.35 µA in LPM3.5), and dual eUSCI modules supporting UART/IrDA/SPI/I²C for secure, battery-powered utility metering systems.
Technical Context
The MSP430FR6987IPN implements a ULP CPUXV2 core with seven optimized 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 16 MHz), enabling precise timing control across dynamic voltage scaling.
Peripherals include three 16-bit timers (TA0–TA3, TB0), 32-bit hardware multiplier, CRC16/CRC32 engines, AES256 coprocessor, and ESI-a dedicated analog subsystem for background capacitive sensing and signal acquisition without CPU intervention-making it suitable for high-accuracy, low-drift water/heat metering applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Capacity | 64 KB nonvolatile memory with 125 ns write speed per word and 1015 write-cycle endurance-enables frequent data logging without wear-out concerns. |
| Supply Voltage Range | 1.8 V to 3.6 V-supports direct connection to single-cell Li-ion or two-cell alkaline batteries without regulation overhead. |
| Active Current | ~100 µA/MHz at 3.3 V-minimizes energy consumption during sensor acquisition and computation phases. |
| LPM3.5 (RTC Active) | 0.35 µA typical-enables decade-long battery life in time-stamped metering applications with calendar-aware wakeups. |
| ADC Resolution | 12-bit SAR with internal reference and sample-and-hold-delivers ±1 LSB INL for precision analog measurement of flow/temperature sensors. |
| ESI Channels | Up to 16 input channels with programmable gain and background scan-eliminates need for external signal conditioning in ultrasonic or impedance-based metering. |
| LCD Driver | Supports up to 320 segments with contrast control-enables full-feature local display on portable utility meters without external controller. |
Pinout & Package
The MSP430FR6987IPN is housed in an 80-pin LQFP (PN) package measuring 12 mm × 12 mm with 0.5 mm pitch. Pin assignments are validated per TI SLAS789D Rev. August 2018, Figure 4-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch support | Enable self-capacitive touch sensing on up to 8 pins without external components-ideal for sealed meter button interfaces. |
| P2.0–P2.7 | Multi-function I/O with UART BSL, TB0 outputs, RTCCLK | Supports hardware bootloader via UART (BSLTX/BSLRX) and drives up to 8 LCD common lines (COM0–COM7) for segment multiplexing. |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), eUSCI_A1 (UART/SPI), DMAE0 | Provides isolated serial interface for secure firmware updates and sensor communication while freeing CPU for ESI processing. |
| P5.0–P5.7 | Timer_A1 outputs, ACLK, UCB1STE | Delivers precise PWM timing for ultrasonic transducer excitation and synchronizes external peripherals using ACLK derived from 32-kHz crystal. |
| P9.0–P9.7 | ESI channel inputs (ESICH0–ESICH3), ESI current sources (ESICI0–ESICI3) | Direct connection point for ESI analog front-end-accepts differential or single-ended signals from flow/heat sensor bridges. |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768 kHz crystal for RTC accuracy ±20 ppm over –40°C to 85°C-critical for billing-grade timekeeping in heat cost allocators. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory space enables atomic writes, eliminates erase latency, and supports simultaneous code execution and data logging-reducing firmware complexity in data-logging meters. |
| Extended Scan Interface (ESI) | Dedicated analog subsystem performs background capacitance, voltage, and current measurements with <1 µA active current-enables continuous sensor monitoring without waking CPU. |
| AES256 Security Coprocessor | Hardware-accelerated encryption/decryption with true random number seed-meets EN 13757-4 and DLMS/COSEM security requirements for smart meter firmware and data integrity. |
| Integrated LCD Driver | Drives up to 320 segments with programmable bias and contrast-replaces external LCD controllers, reducing BOM count and PCB area in compact meter designs. |
| Ultra-Low-Power RTC | 0.35 µA operation in LPM3.5 with calendar, alarms, and tamper detection-ensures accurate time stamping and event logging over 10+ year battery life. |
Applications
| Water Meters | Heat Meters |
|---|---|
Use Scenario: Ultrasonic time-of-flight flow measurement in residential/commercial cold/hot water meters with pulse output and wireless telemetry. IC Role / Device Role / Timing Role: Primary MCU managing ESI-based ultrasonic transducer excitation/reception, ADC sampling, RTC time stamping, and LoRaWAN/NB-IoT modem interfacing. Use Value: ESI achieves sub-nanosecond timing resolution for TOF calculation; FRAM ensures reliable storage of 10-year consumption logs without flash wear-out. | Use Scenario: Thermal energy measurement in district heating systems using temperature differential and flow rate integration over time. IC Role / Device Role / Timing Role: Dual-sensor acquisition hub with synchronized 12-bit ADC sampling of Pt1000 RTDs and ESI-based flow sensor, plus calendar-aware billing interval accumulation. Use Value: Integrated RTC with ±20 ppm accuracy meets MID Class C timekeeping requirements; LCD driver displays real-time energy consumption and historical trends locally. |
| Heat Cost Allocators | Portable Medical Meters |
Use Scenario: Battery-powered radiator-mounted units measuring heat dissipation per room using temperature differentials and runtime. IC Role / Device Role / Timing Role: Low-power sensor fusion node acquiring ambient/radiator temperatures, computing heat allocation coefficients, and storing monthly usage in FRAM. Use Value: 0.35 µA RTC mode extends CR2450 battery life beyond 10 years; capacitive touch I/O enables sealed, vandal-resistant user interface. | Use Scenario: Handheld blood glucose or coagulation analyzers requiring precise electrochemical sensor signal acquisition and secure patient data storage. IC Role / Device Role / Timing Role: Analog front-end controller performing potentiostatic measurements, applying calibration algorithms, and encrypting results before SD card or BLE transmission. Use Value: AES256 coprocessor ensures HIPAA-compliant data encryption; FRAM guarantees lossless storage of critical test parameters and timestamps. |
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 |
|---|---|---|---|
| MSP430FR6988IPN | 96 KB FRAM, identical pinout and peripheral set | Higher memory capacity supports larger firmware images and extended data buffers for advanced diagnostics | Select when >64 KB nonvolatile storage is required for firmware updates or multi-year raw sensor logs. |
| MSP430FR5987IPM | 64 KB FRAM, 64-pin LQFP, no LCD or ESI peripherals | Lacks ESI and LCD_C-requires external analog front-end and display controller | Choose for cost-sensitive, non-metering applications where ESI and integrated display are unnecessary. |
Compared with MSP430FR6988IPN, the MSP430FR6987IPN trades 32 KB FRAM for identical ESI/LCD/AES capabilities in the same 80-pin footprint; versus MSP430FR5987IPM, it adds ESI and LCD support but requires larger PCB area-making it optimal for metering applications demanding integrated analog sensing and local display.
Availability
MSP430FR6987IPN is available at Aetrix Electronics and suitable for water metering, heat metering, and portable medical device applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for MSP430FR6987IPN 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 MSP430FR69xx product line targets ultra-low-power metering and sensing applications, integrating FRAM, ESI, and security peripherals to enable battery-operated, high-accuracy utility and medical instrumentation.
FAQ
What is the maximum operating frequency of the MSP430FR6987IPN?
The MSP430FR6987IPN supports a maximum system clock frequency of 16 MHz via its factory-trimmed DCO or external HFXT crystal. This allows real-time processing of ESI sensor data and AES encryption within tight timing constraints typical of ultrasonic flow measurement cycles.
Does the MSP430FR6987IPN support hardware-based cryptographic operations?
Yes, the MSP430FR6987IPN includes a dedicated AES256 security coprocessor with true random number generation capability. This enables fast, low-power encryption of metering data and firmware updates-meeting regulatory requirements for secure smart meter deployments without burdening the main CPU.
How many external analog inputs does the ADC12_B module support on the MSP430FR6987IPN?
The ADC12_B module on the MSP430FR6987IPN supports up to 16 external analog input channels. These can be configured for single-ended or differential acquisition with internal reference and sample-and-hold-ideal for simultaneous temperature, pressure, and flow sensor monitoring in heat meter designs.
What is the purpose of the Extended Scan Interface (ESI) in the MSP430FR6987IPN?
The Extended Scan Interface (ESI) in the MSP430FR6987IPN is a dedicated analog subsystem that performs background capacitance, voltage, and current measurements with sub-microamp active current. It enables high-precision, low-drift sensing for ultrasonic flow meters and impedance-based gas detectors without CPU intervention.
Is the MSP430FR6987IPN pin-compatible with other devices in the MSP430FR69xx family?
Yes, the MSP430FR6987IPN shares the same 80-pin LQFP (PN) package and pinout with MSP430FR6988IPN and MSP430FR6989IPN. This allows hardware reuse across variants-enabling scalable designs where memory size (64 KB vs. 96 KB vs. 128 KB FRAM) is the primary differentiator.
MSP430FR6987IPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, 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:
MSP430FR6987IPN FAQ
1.How can I place an order for MSP430FR6987IPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6987IPN 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 MSP430FR6987IPN reliable?
The price and inventory of MSP430FR6987IPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6987IPN is usually 5 days.
3.What payment methods are accepted for MSP430FR6987IPN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6987IPN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6987IPN?
MSP430FR6987IPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6987IPN 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 MSP430FR6987IPN?
For technical support, including MSP430FR6987IPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6987IPN requirements.
6.How does Aetrix verify that MSP430FR6987IPN is sourced from the original manufacturer or authorized distributors?
All MSP430FR6987IPN 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 MSP430FR6987IPN meets industry standards.
7.What is the process for return or replacement of MSP430FR6987IPN?
All MSP430FR6987IPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6987IPN, 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 MSP430FR6987IPN part is unused and in its original packaging.
Return procedure for MSP430FR6987IPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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