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Texas Instruments MSP430FR6870IPMR
- Part No.:
- MSP430FR6870IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR6870IPMR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,508
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Product details
Overview
MSP430FR6870IPMR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller featuring 32KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, integrated 112-segment LCD driver, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes requiring long-term data retention without write endurance limits.
For engineers reviewing the MSP430FR6870IPMR datasheet, MSP430FR6870IPMR pinout, MSP430FR6870IPMR application, or MSP430FR6870IPMR equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), RTC operation at 0.35 µA in LPM3.5, active-mode current of ~100 µA/MHz, and support for capacitive touch I/O without external components.
Technical Context
The MSP430FR6870IPMR implements a 16-bit CPUXV2 core with hardware multiplier and three-channel DMA, enabling efficient signal processing in low-power sensing applications. Its clock system integrates DCO with factory-trimmed frequencies, LFXT (32 kHz crystal), and VLO - but excludes HFXT, distinguishing it from higher-tier FR697x variants.
Peripherals include five 16-bit timers (TA0–TA3, TB0), CRC16/CRC32 accelerators, RTC with calendar/alarm, and two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (I²C/SPI) modules. AES256 encryption is omitted per documentation - confirmed absent in all FR687x/FR682x devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 with 32-bit hardware multiplier - enables deterministic math operations for sensor fusion without software overhead |
| FRAM Capacity | 32 KB unified nonvolatile memory - eliminates erase cycles, supports true EEPROM-like byte writes with 125 ns/word speed |
| ADC Resolution | 12-bit SAR with internal reference and sample-and-hold - delivers ±1 LSB INL for precision analog monitoring in metering |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical - enables decade-scale battery life in wake-on-event metering applications |
| Timer Resources | Five 16-bit timers including TA0–TA3 and TB0 with up to seven capture/compare registers - supports multi-channel PWM, input capture, and time-stamped event logging |
| eUSCI Interfaces | 2 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (I²C/SPI) - provides concurrent wired communication for sensor hub and display backplane control |
| LCD Driver | Integrated 112-segment driver with contrast control - drives segmented displays directly without external bias ICs or external capacitors |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad recommended for grounding. Pin functions validated per TI SLASE23E Rev. August 2018, Figure 4-2 (64-pin PM/RGC packages for FR687x).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / A0 / C0 / VREF− | Analog input / reference sink | Supports differential ADC measurements and programmable voltage reference configuration |
| P2.0 / UCA0SIMO / UCA0TXD | UART TX / SPI master out | Primary serial interface for host communication or firmware updates via UART BSL |
| P2.1 / UCA0SOMI / UCA0RXD | UART RX / SPI master in | Enables asynchronous receive with automatic baud-rate detection for robust field communication |
| P6.3 / COM0 | LCD common output | Drives first common electrode in multiplexed LCD segment arrays up to 112 segments |
| PJ.4 / LFXIN | Low-frequency crystal input | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy and ultra-low-power timekeeping |
| RST/NMI/SBWTDIO | Reset / NMI / JTAG debug I/O | Single-pin 4-wire Spy-Bi-Wire interface enables in-system programming and real-time debugging |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB nonvolatile memory with 10¹⁵ write cycles - enables frequent logging without wear leveling or block management |
| Capacitive Touch I/O | All GPIO pins support CTSI-based touch sensing - eliminates external RC networks and reduces BOM cost for human-interface designs |
| Real-Time Clock (RTC) | Calendar mode with alarm and 0.35 µA LPM3.5 current - sustains accurate timekeeping for 10+ years on coin-cell batteries |
| Ultra-Low-Power Operation | Active mode: ~100 µA/MHz; LPM4.5 shutdown: 0.04 µA - extends battery life in intermittent-sensing applications |
| Integrated LCD Driver | 112-segment drive with software-controlled contrast - reduces external component count and PCB area for display-integrated meters |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Compact, battery-powered units mounted on radiators measure temperature differentials and flow time to allocate heating costs. IC Role / Device Role / Timing Role: Main controller executing thermodynamic calculations, storing usage logs in FRAM, and driving LCD display with RTC timestamping. Use Value: FRAM's infinite endurance enables hourly log writes for >10 years; 0.35 µA RTC current ensures 10+ year battery life on CR2032. | Use Scenario: Fixed-installation residential meters collect consumption data, support AMR/AMI protocols, and retain billing history during power outages. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, pulse counting, secure data storage, and optical/RF communication interfaces. Use Value: Unified FRAM simplifies firmware design by eliminating flash erase latency; dual eUSCI modules enable simultaneous IR and PLC communication stacks. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Battery-operated HVAC controllers monitor ambient temperature/humidity, execute PID algorithms, and display setpoints via segmented LCD. IC Role / Device Role / Timing Role: Primary MCU handling sensor acquisition, user interface, scheduling logic, and low-power sleep/wake cycles. Use Value: Integrated 112-segment LCD driver eliminates external bias IC; capacitive touch I/O enables bezel-free button implementation. | Use Scenario: Handheld diagnostic tools (e.g., blood glucose monitors, pulse oximeters) require precise analog measurement, data logging, and compact display. IC Role / Device Role / Timing Role: Signal acquisition engine performing 12-bit ADC conversions, storing calibrated results in FRAM, and updating LCD with measurement history. Use Value: 12-bit ADC with internal reference achieves <±1 LSB INL for clinical-grade accuracy; FRAM enables immediate write-after-convert without blocking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6872IPMR | 64 KB FRAM, same peripherals and package - differs only in FRAM size and absence of AES256 (also omitted in MSP430FR6870IPMR) | Preferred where extended data logging or firmware partitioning requires >32 KB nonvolatile storage | Select when application firmware or historical data sets exceed 32 KB; identical pinout and code compatibility simplify migration |
| MSP430FR6920IPMR | 32 KB FRAM, 116-segment LCD, no HFXT - adds extra LCD segments but removes high-frequency crystal support | Better suited for display-dense, crystal-constrained designs (e.g., portable instruments with large LCDs) | Choose when higher segment count is critical and HFXT is unnecessary; verify LCD segment mapping matches layout |
Compared with MSP430FR6872IPMR, the MSP430FR6870IPMR trades FRAM capacity for identical low-power performance and peripheral set; versus MSP430FR6920IPMR, it offers fewer LCD segments but retains full 32 kHz RTC crystal support and identical I/O count.
Availability
MSP430FR6870IPMR is available at Aetrix Electronics and suitable for utility metering, heat cost allocation, and portable medical equipment requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6870IPMR 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 MSP430FRxx family targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility, precision analog, and intelligent peripherals to extend battery life in portable and wireless systems.
FAQ
What is the maximum operating frequency of the MSP430FR6870IPMR?
The MSP430FR6870IPMR supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO). This frequency is factory-trimmed across 10 selectable settings and can be further stabilized using external 32 kHz or high-frequency crystals - though HFXT is not implemented in this variant, limiting crystal options to LFXT only.
Does the MSP430FR6870IPMR include hardware AES encryption?
No, the MSP430FR6870IPMR does not include AES256 encryption hardware. Per TI documentation (SLASE23E, Section 1.4), AES256 is explicitly excluded from all MSP430FR682x and MSP430FR687x devices. Security features are limited to memory protection unit (MPU) segmentation and lockable FRAM regions for IP encapsulation.
What LCD segment count does the MSP430FR6870IPMR support?
The MSP430FR6870IPMR integrates an LCD_C module supporting up to 112 segments in static or 2–4 multiplex configurations. This matches the specification in Table 3-1 of SLASE23E and is consistent across all FR687x devices in LQFP-64 packages - distinct from FR692x variants which support up to 116 segments.
Which crystal frequencies are supported by the MSP430FR6870IPMR clock system?
The MSP430FR6870IPMR supports 32.768 kHz low-frequency crystals (LFXT) for RTC and real-time applications, but does not implement high-frequency crystal (HFXT) inputs. Its clock system relies on the internal DCO (factory-trimmed up to 16 MHz) and VLO, with LFXT used exclusively for precision timing and calendar functions.
Is the MSP430FR6870IPMR pin-compatible with other devices in the FR687x family?
Yes, the MSP430FR6870IPMR is pin-compatible with MSP430FR6872IPMR and MSP430FR68721IPMR in the same LQFP-64 (PM) package. All share identical pinouts, peripheral mappings, and power/ground assignments - enabling drop-in replacement where FRAM size or BSL interface (UART vs I²C) aligns with system requirements.
MSP430FR6870IPMR 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, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 32KB (32K 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6870IPMR FAQ
1.How can I place an order for MSP430FR6870IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6870IPMR 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 MSP430FR6870IPMR reliable?
The price and inventory of MSP430FR6870IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6870IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR6870IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6870IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6870IPMR?
MSP430FR6870IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6870IPMR 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 MSP430FR6870IPMR?
For technical support, including MSP430FR6870IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6870IPMR requirements.
6.How does Aetrix verify that MSP430FR6870IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6870IPMR 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 MSP430FR6870IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR6870IPMR?
All MSP430FR6870IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6870IPMR, 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 MSP430FR6870IPMR part is unused and in its original packaging.
Return procedure for MSP430FR6870IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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