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Texas Instruments MSP430FR6820IRGCR
- Part No.:
- MSP430FR6820IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR6820IRGCR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,444
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Product details
Overview
MSP430FR6820IRGCR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 32KB nonvolatile memory, 2KB RAM, integrated 12-bit ADC (8 external channels), 116-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 portable sensing devices.
For engineers reviewing the MSP430FR6820IRGCR datasheet, MSP430FR6820IRGCR pinout, MSP430FR6820IRGCR application, or MSP430FR6820IRGCR equivalent, key selection criteria include LPM3.5 RTC current (0.35 µA), FRAM endurance (10¹⁵ writes), absence of AES encryption, and VQFN-64 package compatibility with MSP430FR682x family layout.
Technical Context
The MSP430FR6820IRGCR implements a CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.04 µA). Its clock system integrates DCO, LFXT (32-kHz crystal), and VLO-no HFXT support per device-specific note.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one Timer_B (2/5), 3-channel DMA, CRC16/CRC32, and capacitive touch I/O on all ports. The device lacks AES256 hardware and high-frequency crystal support (HFXIN/HFOUT not implemented).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation |
| FRAM Capacity | 32KB unified nonvolatile memory; enables fast writes (125 ns/word) and 10¹⁵ write-cycle endurance |
| RAM Size | 2KB SRAM for runtime variables and stack |
| ADC Resolution | 12-bit SAR ADC with internal reference and sample-and-hold; supports up to 8 external analog inputs |
| LPM3.5 Current | 0.35 µA typical with RTC running; critical for calendar-based wake-up in metering applications |
| Supply Voltage Range | 1.8 V to 3.6 V; minimum limited by SVS thresholds-not suitable for sub-1.8 V operation |
| Package | VQFN-64 (9 mm × 9 mm); thermal pad must be connected to VSS per TI recommendation |
Pinout & Package
VQFN-64 package (9 mm × 9 mm) with exposed thermal pad; TI recommends connecting thermal pad to DVSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with timer, ADC, and capacitive touch | Support edge-selectable LPM wakeup, programmable pullup/pulldown, and touch sensing without external components |
| P2.0–P2.3 | UART (UCA0) and RTC interface | P2.0/P2.1 serve as BSL_TX/BSL_RX for UART bootloader; P2.2 carries RTCCLK signal |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI) and Timer_B0 | Enable multi-slave I²C communication and LCD COM segment control (TB0.0–TB0.3) |
| P6.0–P6.6 | LCD segment drivers and reference | Drive up to 116 segments; P6.1 provides LCDREF input for contrast control |
| PJ.4/PJ.5 | Low-frequency crystal interface | Connect 32-kHz crystal for RTC accuracy; no HFXIN/HFOUT support per device specification |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB unified memory space enabling simultaneous code execution and data logging without wear leveling |
| Ultra-low-power RTC | 0.35 µA in LPM3.5 mode with calendar and alarm functions-enables decade-long battery life in metering |
| Integrated LCD Driver | 116-segment capability with programmable contrast; eliminates external display controller in portable UIs |
| Capacitive Touch I/O | All GPIO pins support touch sensing-reduces BOM cost and PCB area vs. dedicated touch ICs |
| Dual eUSCI Modules | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0/B1 (I²C/SPI) enable concurrent wired communication protocols |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Compact, battery-operated thermal energy measurement units installed in residential radiators. IC Role / Device Role / Timing Role: Main controller managing temperature sampling, time-stamped data logging to FRAM, and periodic RF transmission. Use Value: LPM3.5 RTC current (0.35 µA) extends battery life beyond 10 years; FRAM enables reliable daily log writes without degradation. | Use Scenario: Submetering devices deployed in multi-tenant buildings for consumption tracking. IC Role / Device Role / Timing Role: System-on-chip handling sensor interfacing (flow, pressure, temp), LCD display, and secure data storage. Use Value: Integrated 12-bit ADC and 116-segment LCD driver reduce component count; 32KB FRAM stores firmware updates and usage history. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless, wall-mounted HVAC controllers with local display and BLE connectivity. IC Role / Device Role / Timing Role: Primary MCU executing PID control, reading ambient sensors, driving segmented LCD, and managing sleep/wake cycles. Use Value: Capacitive touch I/O on all pins enables intuitive buttonless UI; low-active-mode current (100 µA/MHz) minimizes power draw during sensing. | Use Scenario: Handheld diagnostic tools requiring long runtime between charges and reliable data retention. IC Role / Device Role / Timing Role: Data acquisition engine capturing analog biosignals, timestamping events, and storing results in nonvolatile memory. Use Value: FRAM's radiation resistance and 10¹⁵ write endurance ensure integrity of patient records across thousands of sessions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6822IRGCR | 64KB FRAM, same peripherals and package; adds TA3 with external I/O capability | Higher memory headroom for firmware expansion or larger data buffers | Select when future firmware growth or extended data logging is anticipated |
| MSP430FR6920IPMR | LQFP-64 package (10 mm × 10 mm), identical FRAM/RAM/peripherals but includes AES256 coprocessor | Required for applications needing secure firmware updates or encrypted sensor data | Choose only if cryptographic acceleration is mandatory; otherwise, MSP430FR6820IRGCR offers lower cost and same core functionality |
Compared with MSP430FR6822IRGCR and MSP430FR6920IPMR, the MSP430FR6820IRGCR delivers optimal balance of memory, ultra-low-power operation, and cost for metering and portable sensing-without unnecessary AES overhead or package size increase.
Availability
MSP430FR6820IRGCR is available at Aetrix Electronics and suitable for utility metering, portable medical diagnostics, and thermostat control requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR6820IRGCR 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 specializing in analog and embedded processing technologies, with leadership in low-power microcontrollers and precision analog solutions.
The MSP430FR68xx product line targets ultra-low-power sensing and metering applications, emphasizing FRAM-based reliability, RTC accuracy, and minimal active/standby current for battery-operated systems.
FAQ
Does MSP430FR6820IRGCR support AES encryption?
No. The MSP430FR6820IRGCR does not implement AES256 hardware-this feature is explicitly excluded per device family documentation. Applications requiring cryptographic security must select MSP430FR69xx variants like MSP430FR6920IPMR instead.
What is the maximum operating frequency of MSP430FR6820IRGCR?
The MSP430FR6820IRGCR supports up to 16 MHz via its factory-trimmed DCO oscillator. External high-frequency crystals (HFXT) are not supported-only LFXT (32 kHz) and VLO are available for clock sources.
Can MSP430FR6820IRGCR drive a 116-segment LCD directly?
Yes. The MSP430FR6820IRGCR integrates LCD_C peripheral supporting up to 116 segments with static or 2–4 multiplex configurations. P6.x pins provide COM outputs and segment drive capability, eliminating need for external LCD controllers.
Is MSP430FR6820IRGCR pin-compatible with other MSP430FR68xx devices in VQFN-64?
Yes. The MSP430FR6820IRGCR shares identical pinout and package dimensions with MSP430FR6822IRGCR and MSP430FR687xIRGCR variants in the VQFN-64 (RGC) package, enabling drop-in replacement where functional requirements align.
What is the RTC current consumption of MSP430FR6820IRGCR in LPM3.5 mode?
The MSP430FR6820IRGCR draws 0.35 µA typical in LPM3.5 mode with RTC active and calendar functionality enabled-verified in TI's SLASE23E datasheet Section 5.9.
MSP430FR6820IRGCR 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:
- 52
- 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:
MSP430FR6820IRGCR FAQ
1.How can I place an order for MSP430FR6820IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6820IRGCR 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 MSP430FR6820IRGCR reliable?
The price and inventory of MSP430FR6820IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6820IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR6820IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6820IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6820IRGCR?
MSP430FR6820IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6820IRGCR 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 MSP430FR6820IRGCR?
For technical support, including MSP430FR6820IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6820IRGCR requirements.
6.How does Aetrix verify that MSP430FR6820IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6820IRGCR 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 MSP430FR6820IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR6820IRGCR?
All MSP430FR6820IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6820IRGCR, 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 MSP430FR6820IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR6820IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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