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Texas Instruments MSP430FR6987IPZ
- Part No.:
- MSP430FR6987IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430FR6987IPZ.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,189
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Product details
Overview
MSP430FR6987IPZ from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in 100-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 metering applications. 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 MSP430FR6987IPZ datasheet, MSP430FR6987IPZ pinout, MSP430FR6987IPZ application, or MSP430FR6987IPZ equivalent, key selection considerations include ESI peripheral support for background analog sensing, FRAM endurance (1015 write cycles), low-power RTC operation (0.35 µA in LPM3.5), and UART/I²C bootloader compatibility.
Technical Context
The MSP430FR6987IPZ 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 16 MHz) with automatic calibration.
It features three eUSCI modules (eUSCI_A0/A1 for UART/IrDA/SPI; eUSCI_B0/B1 for I²C/SPI), hardware AES-256 encryption, 32-bit CRC engine, and five 16-bit timers - TA0/TA1 with external capture/compare, TA2/TA3 internal-only, and TB0 with seven capture/compare registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Capacity | 64 KB nonvolatile memory enabling fast writes (125 ns/word), no erase before write, and 1015 endurance for data logging. |
| Supply Voltage Range | 1.8 V to 3.6 V - supports battery-powered metering with SVS brownout protection down to 1.8 V. |
| RTC Current (LPM3.5) | 0.35 µA typical - enables decade-scale battery life in water/heat meter real-time timestamping. |
| ADC Resolution & Inputs | 12-bit SAR ADC with 16 external input channels and internal reference - suitable for precision sensor signal acquisition. |
| ESI Peripheral | Extended Scan Interface with dedicated analog front-end for capacitive, resistive, or impedance-based fluid/gas volume measurement without CPU intervention. |
| Package | LQFP-100 (14 mm × 14 mm) - standard surface-mount footprint compatible with industrial PCB assembly processes. |
| Operating Temperature | –40°C to 85°C - qualified for deployment in utility meter enclosures and building automation environments. |
Pinout & Package
Package: LQFP-100 (14 mm × 14 mm), thermally enhanced with exposed pad (per TI mechanical drawings).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, timer, USCI, and ADC functions | Multi-function pins supporting wake-up from LPM on edge, ESI test signals (ESITEST0–4), and analog input (A0–A3). |
| P6.0–P6.6 | LCD segment/common outputs and comparator outputs | Drive up to 320-segment LCD directly; P6.3–P6.6 serve as COM0–COM3 for multiplexed display control. |
| P9.0–P9.7 | ESI channel inputs (ESICH0–3) and current sources (ESICI0–3) | Interface dedicated analog front-end for background water/heat meter transducer scanning without CPU load. |
| PJ.4/PJ.5 | Low-frequency crystal interface (LFXIN/LFXOUT) | Connects 32.768 kHz tuning-fork crystal for RTC timing with ±20 ppm stability over temperature. |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, and Spy-Bi-Wire debug I/O | Single-pin 2-wire JTAG alternative enabling in-system programming and real-time debugging with EnergyTrace++. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory space eliminates erase latency and enables true EEPROM-like byte-write capability with 1015 cycle endurance. |
| Extended Scan Interface (ESI) | Dedicated hardware accelerator for background analog measurement of capacitance/resistance - reduces CPU wake-ups and extends battery life in metering. |
| Real-Time Clock (RTC_C) | Calendar mode with alarm, battery-backed operation, and 0.35 µA LPM3.5 current - enables time-stamped data logging without external RTC IC. |
| Hardware AES-256 | On-the-fly encryption/decryption coprocessor offloads security processing - essential for firmware updates and secure meter communication. |
| eUSCI Modules | Dual UART (eUSCI_A0/A1) with auto-baud detection + dual I²C (eUSCI_B0/B1) with multi-slave addressing - supports legacy and modern communication protocols in one device. |
Applications
| Water Meters | Heat Meters |
|---|---|
Use Scenario: Ultrasonic or electromagnetic flow measurement with time-of-flight or voltage differential sensing. IC Role / Device Role / Timing Role: Primary controller executing ESI-driven analog scan, RTC-timestamped data storage in FRAM, and UART-based pulse output or NB-IoT modem interface. Use Value: Eliminates external ADC and RTC, reduces BOM count by 3–4 components, and enables >10-year battery life via 0.35 µA RTC current. | Use Scenario: Thermal energy calculation using inlet/outlet temperature and flow rate in district heating systems. IC Role / Device Role / Timing Role: Simultaneous multi-channel temperature sensing (via ADC), flow integration (via ESI), and secure data logging with AES-256 encryption. Use Value: Integrated ESI handles analog front-end autonomously, freeing CPU for protocol stack execution and reducing active-mode current to ~100 µA/MHz. |
| Heat Cost Allocators | Portable Medical Meters |
Use Scenario: Radiator-mounted unit measuring heat consumption per apartment using temperature differentials and runtime. IC Role / Device Role / Timing Role: Low-power sensor hub collecting NTC/RTD data, computing thermal units, storing history in FRAM, and transmitting via IR or sub-GHz RF. Use Value: FRAM's instant write capability ensures data integrity during unexpected power loss - critical for billing accuracy. | Use Scenario: Handheld blood glucose or oxygen saturation meters requiring precise analog signal conditioning and long shelf life. IC Role / Device Role / Timing Role: Signal acquisition (12-bit ADC), capacitive touch UI, secure patient data storage, and Bluetooth LE interface via UART. Use Value: 2KB RAM + 64KB FRAM provides ample space for calibration tables, historical trends, and encrypted health records without flash wear-out concerns. |
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 |
|---|---|---|---|
| MSP430FR6988IPZ | 96 KB FRAM, same package and peripherals; no functional difference in ESI, RTC, or communication interfaces. | Higher memory headroom for larger firmware or extended data logging buffers in advanced metering. | Select when firmware size exceeds 64 KB or long-term trend storage requires >64 KB persistent space. |
| MSP430FR5987IPM | 64 KB FRAM, 64-pin LQFP (10 mm × 10 mm); lacks LCD_C and ESI peripherals; fewer I/O (48 vs. 83). | Suitable for compact, cost-sensitive designs where LCD display and high-channel analog scan are unnecessary. | Choose for space-constrained applications without display or ESI requirements - saves PCB area and BOM cost. |
Compared with MSP430FR6988IPZ and MSP430FR5987IPM, the MSP430FR6987IPZ uniquely balances 64KB FRAM, full ESI capability, and 320-segment LCD support in a 100-pin LQFP - making it optimal for mid-tier utility meters needing display, security, and autonomous analog sensing without over-provisioning memory.
Availability
MSP430FR6987IPZ is available at Aetrix Electronics and suitable for water metering, heat metering, and portable medical instrumentation requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6987IPZ 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 with emphasis on energy efficiency and system-level innovation.
The MSP430 ULP FRAM portfolio targets battery-operated sensing and measurement applications, integrating ferroelectric memory, ultra-low-power architecture, and application-specific peripherals like ESI for utility infrastructure.
FAQ
What is the maximum operating frequency of the MSP430FR6987IPZ?
The MSP430FR6987IPZ supports a maximum system clock frequency of 16 MHz via its factory-trimmed DCO or external HFXT crystal. This allows deterministic real-time processing for time-critical metering tasks while maintaining ultra-low-power operation in active mode (≈100 µA/MHz). The device also supports lower-frequency clocks (e.g., 32.768 kHz from LFXT) for RTC and low-power sensing.
Does the MSP430FR6987IPZ support hardware encryption?
Yes, the MSP430FR6987IPZ includes a dedicated AES-256 security coprocessor that performs encryption and decryption in hardware. This offloads cryptographic operations from the CPU, enabling secure firmware updates, protected data logging, and authenticated communication - all critical for certified utility meter deployments where data integrity and tamper resistance are mandated.
How many external analog inputs does the ADC12_B module support on the MSP430FR6987IPZ?
The ADC12_B module on the MSP430FR6987IPZ supports up to 16 external analog input channels, configurable as single-ended or differential pairs (up to 8 differential inputs). These inputs are mapped to pins across ports P1, P4, P5, P6, P7, P8, and P9, and can be combined with the ESI peripheral for automated background scanning in metering applications.
What is the purpose of the Extended Scan Interface (ESI) in the MSP430FR6987IPZ?
The Extended Scan Interface (ESI) in the MSP430FR6987IPZ is a dedicated analog subsystem designed for autonomous, low-power measurement of capacitance, resistance, or impedance - commonly used in ultrasonic water meters and thermal mass flow sensors. It operates independently of the CPU, enabling continuous background scanning while the MCU remains in LPM3, thereby extending battery life significantly compared to CPU-polling architectures.
Is the MSP430FR6987IPZ pin-compatible with other devices in the MSP430FR698x family?
Yes, the MSP430FR6987IPZ is pin-compatible with the MSP430FR6988IPZ and MSP430FR6989IPZ in the same 100-pin LQFP (PZ) package. All share identical pinouts, electrical characteristics, and peripheral mappings - allowing hardware reuse across product tiers by simply changing firmware and leveraging differing FRAM capacities (64 KB, 96 KB, 128 KB respectively).
MSP430FR6987IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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:
- 83
- 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6987IPZ FAQ
1.How can I place an order for MSP430FR6987IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6987IPZ 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 MSP430FR6987IPZ reliable?
The price and inventory of MSP430FR6987IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6987IPZ is usually 5 days.
3.What payment methods are accepted for MSP430FR6987IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6987IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6987IPZ?
MSP430FR6987IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6987IPZ 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 MSP430FR6987IPZ?
For technical support, including MSP430FR6987IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6987IPZ requirements.
6.How does Aetrix verify that MSP430FR6987IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430FR6987IPZ 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 MSP430FR6987IPZ meets industry standards.
7.What is the process for return or replacement of MSP430FR6987IPZ?
All MSP430FR6987IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6987IPZ, 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 MSP430FR6987IPZ part is unused and in its original packaging.
Return procedure for MSP430FR6987IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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