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Texas Instruments MSP430FR5987IPMR
- Part No.:
- MSP430FR5987IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR5987IPMR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
MSP430FR5987IPMR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 64KB ferroelectric RAM (FRAM), 2KB SRAM, a 16-channel 12-bit ADC with internal reference, integrated extended scan interface (ESI) for capacitive sensing, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered metering applications requiring long-term data retention and low active/standby current.
For engineers reviewing the MSP430FR5987IPMR datasheet, MSP430FR5987IPMR pinout, MSP430FR5987IPMR application, or MSP430FR5987IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC with calendar mode in LPM3.5 (0.35 µA), ESI peripheral for touchless water/heat metering, and 64-pin LQFP package compatibility with industrial layout constraints.
Technical Context
The MSP430FR5987IPMR implements the ULP CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its FRAM architecture enables byte-level writes without erase cycles and eliminates flash wear-out concerns in high-write-intensity logging scenarios.
It integrates a dedicated Extended Scan Interface (ESI) with hardware-accelerated background capacitance measurement-supporting up to 16 input channels-and pairs with the 12-bit ADC12_B for precision analog front-end processing in utility metering systems where sensor drift compensation and low-noise acquisition are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Capacity | 64 KB nonvolatile memory with 10¹⁵ write endurance - enables daily firmware updates and decade-long data logging without degradation. |
| Supply Voltage Range | 1.8 V to 3.6 V - supports direct Li-SOCl₂ or dual-AA battery operation without external regulators. |
| Active Current | ~100 µA/MHz at 16 MHz - allows real-time signal processing while maintaining multi-year battery life in portable meters. |
| LPM3.5 (RTC Active) | 0.35 µA typical - sustains calendar timekeeping and alarm wake-up during multi-year standby in heat/water meters. |
| ADC Resolution | 12-bit SAR with internal reference and sample-and-hold - delivers ±1 LSB INL for accurate sensor voltage digitization in ESI-coupled systems. |
| ESI Channels | 16-channel capacitive scan interface - performs background, low-power capacitance measurements for fluid level or flow detection without CPU intervention. |
| eUSCI Peripherals | Two eUSCI_A (UART/SPI) + two eUSCI_B (I²C/SPI) modules - supports simultaneous host communication (UART), sensor I²C bus, and secure bootloader via hardware BSL. |
Pinout & Package
Package: 64-pin LQFP (PM), 10 mm × 10 mm body, 0.5 mm pitch, exposed thermal pad (recommended connected to VSS per TI guidelines).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch support | Enable self-capacitive or mutual-capacitive sensing on up to 8 pins without external components - used for keypad or housing tamper detection. |
| P9.0–P9.7 | ESI channel inputs (ESICH0–ESICH3) and ESI control (ESICI0–ESICI3) | Direct connection to electrode arrays for water/heat meter transducers - ESI handles charge-transfer timing and integration autonomously. |
| P3.0–P3.7 | eUSCI_B1 (I²C) and eUSCI_A1 (UART/SPI) | Supports isolated RS-485 modem interface (via UART) and local sensor I²C bus - dual-protocol flexibility for field-deployed metering nodes. |
| P5.0–P5.7 | Timer_A1 outputs and eUSCI_B1 STE/CLK | Generate precise PWM waveforms for LCD bias control or drive external transducer excitation signals synchronized to ESI timing. |
| RST/NMI/SBWTDIO | JTAG/Spy-Bi-Wire debug and reset | Enables in-system programming and real-time debugging over 2-wire interface - critical for field firmware updates in sealed meter housings. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory space enabling instant write persistence, zero-latency updates, and elimination of EEPROM emulation overhead in firmware OTA updates. |
| Extended Scan Interface (ESI) | Dedicated hardware accelerator for background capacitance measurement - reduces CPU load by >90% versus software-based touch scanning in water meter electrode arrays. |
| Real-Time Clock (RTC_C) | Calendar mode with alarm interrupt in LPM3.5 at 0.35 µA - maintains accurate billing timestamps across 10+ year deployments without external RTC IC. |
| Hardware AES256 Engine | Offloads encryption/decryption for secure firmware signing and encrypted meter data transmission - meets ANSI C12.22 and DLMS/COSEM security requirements. |
| Low-Power Modes | Seven defined ULP modes including LPM4.5 (0.02 µA shutdown) - extends battery life beyond 15 years in static utility meter installations. |
Applications
| Water Meters | Heat Cost Allocators |
|---|---|
Use Scenario: Ultrasonic or oscillating-piston flow measurement in residential cold/hot water meters with battery backup. IC Role / Device Role / Timing Role: Primary MCU managing ESI-driven electrode capacitance sensing, RTC-stamped pulse counting, and LoRaWAN/RFM69 wireless reporting. Use Value: FRAM retains 10+ years of hourly consumption logs without wear-out; ESI enables sub-millisecond fluid presence detection independent of CPU. |
Use Scenario: Thermal energy allocation in multi-dwelling heating systems using temperature differential and flow time integration. IC Role / Device Role / Timing Role: Dual-sensor aggregator with 12-bit ADC sampling PT1000 RTDs and ESI-measured valve position feedback. Use Value: LPM3.5 RTC ensures accurate billing intervals; integrated LCD_C drives 240-segment display for local readout without external controller. |
| Portable Medical Meters | Data Loggers |
Use Scenario: Handheld blood glucose or inhaler dose counters requiring FDA-compliant audit trails and tamper-proof storage. IC Role / Device Role / Timing Role: Secure data acquisition node with AES256-encrypted FRAM storage and timestamped event logging. Use Value: 10¹⁵ FRAM write cycles guarantee full lifetime compliance with 21 CFR Part 11 electronic record integrity requirements. |
Use Scenario: Environmental monitoring in remote infrastructure (e.g., transformer oil temperature, pipeline pressure) with multi-year unattended operation. IC Role / Device Role / Timing Role: Autonomous sensor hub collecting analog/digital inputs, performing CRC32 integrity checks, and storing to FRAM before scheduled RF upload. Use Value: Unified FRAM simplifies firmware design - no separate code/data/EEPROM partitioning; CRC32 engine validates log integrity pre-transmission. |
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 |
|---|---|---|---|
| MSP430FR5986IPMR | 48 KB FRAM, no ESI peripheral, same 64-pin LQFP package and core peripherals. | Suitable for simpler metering or sensor nodes without capacitive fluid sensing requirements. | Select when ESI functionality is unnecessary and cost reduction is prioritized over future feature scalability. |
| MSP430FR5988IPMR | 96 KB FRAM, identical ESI/ADC/peripheral set, same package and pinout. | Drop-in upgrade path for designs needing larger firmware image or extended data buffer capacity. | Choose for new designs targeting longer firmware version history or higher-resolution sensor logging without PCB redesign. |
Compared with MSP430FR5986IPMR, the MSP430FR5987IPMR adds ESI for contactless sensing and 16 KB more FRAM for robust OTA update staging; versus MSP430FR5988IPMR, it trades 32 KB FRAM for lower unit cost while retaining identical metrology-grade analog and timing capabilities.
Availability
MSP430FR5987IPMR is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical device applications requiring stable component supply, long-term lifecycle assurance, and TI-qualified industrial temperature grade (-40°C to 85°C) performance.
Supply support for MSP430FR5987IPMR 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, reliability, and system-level integration.
The MSP430FR59xx family is designed specifically for ultra-low-power metering and sensing applications - combining FRAM nonvolatility, ESI for fluid/gas measurement, and metrology-grade analog peripherals in a single-chip solution.
FAQ
What is the maximum operating frequency of the MSP430FR5987IPMR?
The MSP430FR5987IPMR supports a maximum system clock frequency of 16 MHz using the factory-trimmed DCO oscillator or external HFXT crystal. This enables real-time execution of ESI background scans, 12-bit ADC conversions, and AES256 encryption within tight timing budgets required for ultrasonic flow measurement cycles.
Does the MSP430FR5987IPMR include hardware cryptographic acceleration?
Yes, the MSP430FR5987IPMR integrates a dedicated 128/256-bit AES security coprocessor that performs encryption and decryption independently of the CPU. This allows secure firmware updates and encrypted sensor data transmission without compromising real-time performance in applications like ANSI C12.22-compliant smart meters.
How does the Extended Scan Interface (ESI) function in the MSP430FR5987IPMR?
The ESI in the MSP430FR5987IPMR is a hardware peripheral that autonomously measures capacitance changes across up to 16 electrodes using charge-transfer techniques. It operates in background mode during LPM3, freeing the CPU for other tasks - essential for continuous fluid detection in water meters without increasing average current draw.
What is the standby current consumption of the MSP430FR5987IPMR in RTC-active mode?
In LPM3.5 mode with RTC_C running from the 32-kHz LFXT crystal, the MSP430FR5987IPMR consumes 0.35 µA typical. This ultra-low current enables decade-long calendar operation on a single CR2032 coin cell - validated per TI SLAS789D datasheet Section 5.9.
Is the MSP430FR5987IPMR pin-compatible with other devices in the MSP430FR59xx family?
Yes, the MSP430FR5987IPMR in the 64-pin LQFP (PM) package shares identical pinout and electrical characteristics with MSP430FR5986IPMR and MSP430FR5988IPMR. This enables hardware reuse across product variants - for example, upgrading FRAM capacity without board revision when moving from MSP430FR5987IPMR to MSP430FR5988IPMR.
MSP430FR5987IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-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, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 48
- 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:
MSP430FR5987IPMR FAQ
1.How can I place an order for MSP430FR5987IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5987IPMR 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 MSP430FR5987IPMR reliable?
The price and inventory of MSP430FR5987IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5987IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR5987IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5987IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5987IPMR?
MSP430FR5987IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5987IPMR 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 MSP430FR5987IPMR?
For technical support, including MSP430FR5987IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5987IPMR requirements.
6.How does Aetrix verify that MSP430FR5987IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5987IPMR 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 MSP430FR5987IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR5987IPMR?
All MSP430FR5987IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5987IPMR, 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 MSP430FR5987IPMR part is unused and in its original packaging.
Return procedure for MSP430FR5987IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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