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Texas Instruments MSP430FR6870IRGCR
- Part No.:
- MSP430FR6870IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR6870IRGCR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
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Product details
Overview
MSP430FR6870IRGCR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 32KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, integrated 112-segment LCD driver, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). 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 MSP430FR6870IRGCR datasheet, MSP430FR6870IRGCR pinout, MSP430FR6870IRGCR application, or MSP430FR6870IRGCR equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), RTC with calendar mode in LPM3.5 (0.35 µA), capacitive touch I/O support, and absence of AES encryption-distinguishing it from MSP430FR69xx variants.
Technical Context
The MSP430FR6870IRGCR implements the MSP430 CPUXV2 core with 16 registers and executes instructions at up to 16 MHz using a factory-trimmed DCO, LFXT (32 kHz crystal), or VLO clock source. Its memory subsystem integrates unified FRAM for code/data/storage, eliminating separate flash and RAM partitions.
Peripherals include three 16-bit Timer_A modules (TA0/TA1/TA2), one 16-bit Timer_B (TB0) with five capture/compare registers, 32-bit hardware multiplier, three-channel DMA, and dual eUSCI_A/B interfaces supporting UART, SPI, IrDA, and I²C-all configurable via register-level control without firmware overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation with DCO/LFXT/VLO clock sources |
| Nonvolatile Memory | 32KB FRAM: supports 125-ns writes, 10¹⁵ write cycles, unified program/data/storage space |
| RAM | 2KB SRAM + 26B Tiny RAM: retains content in LPM3, used for critical state during deep sleep |
| ADC | 12-bit ADC12_B with internal reference, sample-and-hold, and up to 8 external input channels |
| LCD Driver | Integrated LCD_C module driving up to 112 segments in static or 2–4 mux configurations |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.04 µA typical - enables multi-year battery life |
| eUSCI Peripherals | eUSCI_A0/A1: UART (auto-baud detect), IrDA, SPI (≤10 Mbps); eUSCI_B0/B1: I²C (multi-slave), SPI (≤10 Mbps) |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body size, thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 | ADC channel 0 / RTC clock input / DMA trigger | Primary analog input and real-time clock synchronization point; supports low-jitter timing for metering applications |
| P2.0 | UCA0SIMO / UCA0TXD / TB0.6 | Primary UART transmit line; also serves as BSL_TX for bootloader programming over serial interface |
| P2.1 | UCA0SOMI / UCA0RXD / TB0.5 / DMAE0 | Primary UART receive line with DMA enable; enables zero-CPU-overhead data ingestion in metering firmware |
| PJ.4 / PJ.5 | LFXIN / LFXOUT | 32-kHz crystal oscillator terminals; required for RTC calendar mode and low-power timekeeping in LPM3.5 |
| P6.3–P6.6 | COM0–COM3 | Common electrode outputs for 4-mux LCD; drive up to 112-segment displays without external bias circuitry |
| TEST / RST/NMI | JTAG/SBW debug interface | Supports Spy-Bi-Wire (2-wire JTAG) for in-circuit debugging and flash programming with minimal pin count |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB unified memory enabling instant write persistence, no erase cycles, and 10¹⁵ endurance - ideal for logging utility meter data hourly for >100 years |
| Capacitive Touch I/O | All GPIO pins support CSD (capacitive sensing) without external components - reduces BOM cost in thermostats and portable medical devices |
| Real-Time Clock (RTC) | Calendar mode with alarm in LPM3.5 draws only 0.35 µA - maintains accurate timekeeping during 10+ year battery life in heat cost allocators |
| Ultra-Low-Power Operation | Active mode: ~100 µA/MHz; Standby (LPM3): 0.4 µA - extends CR2032 battery life beyond 5 years in wireless sensor nodes |
| Hardware Acceleration | 32-bit hardware multiplier and CRC16/CRC32 engines offload math-intensive tasks from CPU - improves firmware efficiency in checksum-heavy protocols |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Installed in residential heating systems to measure radiator heat output via temperature differentials and flow rates over multi-year intervals. IC Role / Device Role / Timing Role: Main controller executing thermodynamic calculations, storing hourly consumption logs in FRAM, and maintaining precise time via RTC calendar mode. Use Value: FRAM's 10¹⁵ write endurance ensures reliable logging across >100 years of hourly data without wear-out - eliminating field replacement due to memory failure. | Use Scenario: Embedded in smart electricity/water/gas meters for metrology, tamper detection, and secure communication with AMI networks. IC Role / Device Role / Timing Role: Primary metrology processor interfacing with ADC for current/voltage sampling, managing LCD display, and handling UART/I²C comms with external modems or sensors. Use Value: Integrated 112-segment LCD driver eliminates external display controllers; LPM3.5 RTC enables accurate billing timestamps with sub-µA power draw. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Core MCU in battery-powered HVAC thermostats requiring ambient temperature sensing, user interface (LCD + touch), and periodic wireless reporting. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, capacitive touch buttons, segment LCD display, and scheduled BLE/Wi-Fi wakeups via RTC alarms. Use Value: All-I/O capacitive touch capability removes external RC networks; FRAM enables fast, low-power configuration storage and event logging. | Use Scenario: Used in handheld glucose monitors, pulse oximeters, and portable ECG devices where size, battery life, and data reliability are critical. IC Role / Device Role / Timing Role: Signal acquisition controller reading analog biosensors via ADC, storing calibrated results in FRAM, and driving compact LCD readouts. Use Value: 12-bit ADC with internal reference ensures consistent measurement accuracy across voltage and temperature ranges; 2KB RAM buffers real-time waveform data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6872IRGCR | 64KB FRAM (vs. 32KB), identical peripherals and package; no AES engine | Same use cases but supports larger firmware images and extended data logging buffers | Select when firmware size exceeds 32KB or long-duration data history is required without external memory |
| MSP430FR6970IPMR | 32KB FRAM, LQFP-64 package, includes AES-128 encryption coprocessor | Required for applications needing secure firmware updates or encrypted sensor data transmission | Choose only if cryptographic security is mandated; otherwise, MSP430FR6870IRGCR offers lower cost and same core functionality |
Compared with MSP430FR6872IRGCR, the MSP430FR6870IRGCR trades half the FRAM capacity for identical low-power performance and peripheral set - making it optimal for cost-sensitive, size-constrained utility meter designs. Against MSP430FR6970IPMR, it omits AES but retains full metrology and display capability in a smaller VQFN package.
Availability
MSP430FR6870IRGCR is available at Aetrix Electronics and suitable for utility metering, portable medical instrumentation, and thermostat control requiring stable component supply and long-term production continuity.
Supply support for MSP430FR6870IRGCR 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The MSP430FR68xx family is designed for ultra-low-power sensing and measurement applications - emphasizing FRAM-based data logging, precision analog acquisition, and extended battery life in metering and portable equipment.
FAQ
Does the MSP430FR6870IRGCR support hardware AES encryption?
No, the MSP430FR6870IRGCR does not include an AES encryption coprocessor. This feature is present only in the MSP430FR69xx series (e.g., MSP430FR6970). The MSP430FR6870IRGCR provides identical FRAM, ADC, LCD, and timer capabilities but omits AES to reduce cost and power - making it suitable for non-secure metering and sensor applications where encryption is handled externally or not required.
What is the maximum operating frequency of the MSP430FR6870IRGCR?
The MSP430FR6870IRGCR supports a maximum CPU clock frequency of 16 MHz, achieved using the factory-trimmed DCO oscillator or an external HFXT crystal. The DCO offers 10 selectable frequencies with ±3% accuracy over voltage and temperature, while HFXT enables higher precision timing for synchronous communication or metrology functions requiring tight jitter control.
Which package type does the MSP430FR6870IRGCR use, and what are its thermal considerations?
The MSP430FR6870IRGCR uses the VQFN-64 (RGC) package, measuring 9 mm × 9 mm with an exposed thermal pad. Texas Instruments recommends connecting this thermal pad directly to DVSS (ground plane) to ensure proper heat dissipation and stable operation under continuous active-mode conditions. Thermal resistance (θJA) is 36.2°C/W per datasheet SLASE23E.
Can the MSP430FR6870IRGCR drive a 112-segment LCD display without external components?
Yes, the MSP430FR6870IRGCR integrates the LCD_C peripheral capable of driving up to 112 segments in static, 2-mux, 3-mux, or 4-mux configurations. It includes programmable contrast control, internal charge pump, and dedicated COM/SEG output pins - eliminating the need for external LCD bias generators or driver ICs in applications like utility meters and thermostats.
How many capture/compare registers does the Timer_B module (TB0) provide on the MSP430FR6870IRGCR?
The Timer_B module (TB0) on the MSP430FR6870IRGCR provides five capture/compare registers, as confirmed in Table 3-1 of the device comparison. These registers support PWM generation, input capture for pulse-width measurement, and output compare for precise timing events - essential for motor control in portable medical devices or flow measurement in utility meters.
MSP430FR6870IRGCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- 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:
MSP430FR6870IRGCR FAQ
1.How can I place an order for MSP430FR6870IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6870IRGCR 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 MSP430FR6870IRGCR reliable?
The price and inventory of MSP430FR6870IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6870IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR6870IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6870IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6870IRGCR?
MSP430FR6870IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6870IRGCR 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 MSP430FR6870IRGCR?
For technical support, including MSP430FR6870IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6870IRGCR requirements.
6.How does Aetrix verify that MSP430FR6870IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6870IRGCR 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 MSP430FR6870IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR6870IRGCR?
All MSP430FR6870IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6870IRGCR, 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 MSP430FR6870IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR6870IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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