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Texas Instruments MSP430FR6820IPMR
- Part No.:
- MSP430FR6820IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR6820IPMR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
MSP430FR6820IPMR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 32KB nonvolatile memory, 2KB RAM, integrated 12-bit ADC, 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 MSP430FR6820IPMR datasheet, MSP430FR6820IPMR pinout, MSP430FR6820IPMR application, or MSP430FR6820IPMR equivalent, key selection criteria include LPM3.5 RTC current (0.35 µA), FRAM endurance (10¹⁵ writes), 64-pin LQFP package compatibility, and absence of AES256 encryption-critical for cost-sensitive metering designs requiring long-term data logging without cryptographic overhead.
Technical Context
The MSP430FR6820IPMR implements a 16-bit 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, VLO, and LFXT (32-kHz crystal), but excludes HFXT-confirmed by functional block diagram notes and device comparison tables.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one Timer_B (2/5), 32-bit hardware multiplier, CRC16/CRC32 engines, and capacitive touch I/O on all ports. The device lacks AES256 and HFXIN/HFOUT, distinguishing it from FR69xx variants per datasheet revision notes and feature tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2, up to 16-MHz operation-enables deterministic real-time control in metering firmware without external clock sources. |
| FRAM Capacity | 32 KB nonvolatile memory with 125-ns write speed-supports rapid logging of sensor readings and event timestamps without wear-out concerns. |
| Low-Power Modes | LPM3.5 draws 0.35 µA (RTC active); LPM4.5 draws 0.04 µA-extends battery life to >10 years in heat cost allocators using coin cells. |
| Analog Peripherals | 12-bit ADC with 8 external channels and internal reference; 8-channel analog comparator-sufficient for multi-sensor interfacing in thermostats and water meters. |
| Display Support | Integrated 116-segment LCD driver with contrast control-eliminates external display controllers in portable medical equipment and utility meters. |
| Communication Interfaces | eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0/B1 (I²C/SPI)-enables dual-bus connectivity for sensor hubs and smart meter communication modules. |
| Package | LQFP-64 (10 mm × 10 mm)-standard footprint compatible with industrial PCB assembly processes and thermal management requirements. |
Pinout & Package
LQFP-64 package with exposed thermal pad (recommended connection to DVSS). Pin functions validated per TI SLASE23E datasheet Figures 4-1 and 4-2 for PM/RGC packages; includes dedicated LCD segment outputs (P6.0–P6.6, P3.0–P3.7, etc.), dual eUSCI signal routing, and JTAG/SBW debug interface on pins 19–24.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC inputs, timer I/O | Supports direct sensor interface (e.g., thermistor on P1.0) and wake-on-touch in portable medical devices. |
| P2.0–P2.3 | UART BSL TX/RX, RTCCLK, TB0OUTH | Enables field firmware updates via UART; RTCCLK input synchronizes timekeeping to external 32-kHz crystal. |
| P3.0–P3.7 | eUSCI_B1 clock/data, Timer_B outputs, LCD segments | Drives COM lines (P3.0–P3.3) and SEG lines (P3.4–P3.7) for 4-mux LCD displays in utility meters. |
| P6.0–P6.6 | LCD segment outputs (COM0–COM3), comparator output | Dedicated segment drivers reduce external component count; COUT on P6.2 enables zero-crossing detection in energy monitoring. |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32-kHz crystal for RTC accuracy ±20 ppm-required for calendar-based billing in gas/water meters. |
| TEST/RST | SBWTCK/SBWTDIO, reset input | Supports Spy-Bi-Wire debugging with single-pin interface; RST/NMI allows hardware reset and interrupt wakeup. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory with 10¹⁵ write cycles-enables daily firmware updates and lifetime data logging without flash wear leveling. |
| Ultra-Low-Power RTC | 0.35 µA in LPM3.5 mode with calendar/alarm-provides accurate time-stamping for consumption events in electricity meters. |
| Capacitive Touch I/O | All GPIO support touch sensing without external components-reduces BOM cost in thermostats and portable medical interfaces. |
| Hardware CRC Engines | CRC16 and CRC32 accelerators-offloads checksum computation from CPU during secure firmware OTA updates. |
| Integrated LCD Driver | 116-segment support with programmable contrast-eliminates external LCD controller IC in handheld diagnostic tools. |
Applications
| Heat Cost Allocators | Utility Meters |
|---|---|
Use Scenario: Wireless temperature differential measurement across radiator surfaces in district heating systems. IC Role / Device Role / Timing Role: Main controller executing ISO 14344-compliant heat calculation, RTC-driven hourly data logging, and sub-GHz RF interface timing. Use Value: 0.35 µA RTC current extends CR2032 battery life beyond 10 years; FRAM enables tamper-proof storage of consumption history. | Use Scenario: Electricity meter with pulse counting, tariff switching, and optical port communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, EEPROM replacement, and IR/UART host interface timing. Use Value: 32 KB FRAM stores 36 months of kWh data; LPM4.5 shutdown mode reduces standby power to 40 nA. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Battery-powered HVAC controller with ambient temperature/humidity sensing and LCD display. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating I²C sensor data, driving 116-segment LCD, and managing sleep/wake cycles. Use Value: Capacitive touch I/O enables button-less UI; integrated ADC and comparator reduce external analog components. | Use Scenario: Handheld blood glucose monitor with strip detection, analog front-end, and graphical LCD. IC Role / Device Role / Timing Role: Precision analog acquisition controller with 12-bit ADC, LCD refresh timing, and USB/I²C host interface. Use Value: 125-ns FRAM writes ensure no sample loss during high-speed strip calibration sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6822IPMR | 64 KB FRAM, same peripherals and package-no AES256, identical LPM3.5 current and LCD capability. | Higher memory capacity supports larger firmware images and extended data buffers in advanced utility meters. | Select when firmware size exceeds 32 KB or long-term trend logging requires >32 KB storage. |
| MSP430FR6920IPMR | 32 KB FRAM, adds AES256 encryption coprocessor and 100-segment LCD option-same LQFP-64 package. | Suitable for secure metering deployments requiring encrypted firmware updates or protected customer data storage. | Select when regulatory compliance (e.g., DLMS/COSEM) mandates hardware-accelerated cryptography. |
Compared with MSP430FR6822IPMR and MSP430FR6920IPMR, the MSP430FR6820IPMR offers optimal cost/performance balance for non-secure, memory-constrained metering applications-retaining full peripheral set and ultra-low-power operation while minimizing silicon area and bill-of-materials cost.
Availability
MSP430FR6820IPMR is available at Aetrix Electronics and suitable for utility metering, portable medical diagnostics, and building automation systems requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR6820IPMR 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 and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430FRxx family targets ultra-low-power sensing and measurement systems, with the MSP430FR6820IPMR optimized for cost-sensitive, battery-operated metering and portable instrumentation where FRAM endurance and sub-µA RTC operation are critical.
FAQ
Does the MSP430FR6820IPMR support hardware AES encryption?
No, the MSP430FR6820IPMR does not include AES256 encryption hardware. This capability is reserved for MSP430FR69xx devices per the functional block diagram notes in the SLASE23E datasheet. The MSP430FR6820IPMR relies on software-based security for applications where cryptographic acceleration is not required, preserving die area and cost for metering use cases.
What is the maximum operating frequency of the MSP430FR6820IPMR CPU?
The MSP430FR6820IPMR CPU operates up to 16 MHz using its factory-trimmed DCO or external HFXT (though HFXT is not implemented in this variant). The datasheet specifies "16-Bit RISC Architecture up to 16-MHz Clock" under Features, and timing characteristics in Section 5.13 confirm operation at 16 MHz with specified setup/hold margins for all peripherals.
Can the MSP430FR6820IPMR drive a 4-mux LCD display?
Yes, the MSP430FR6820IPMR integrates LCD_C peripheral supporting up to 116 segments in static, 2-, 3-, or 4-mux configurations. Pin assignments in Table 4-1 and Figure 4-1 confirm P3.x and P6.x pins designated as COM/SEG outputs, enabling direct drive of 4-mux displays common in utility meters without external bias circuitry.
Is the MSP430FR6820IPMR pin-compatible with other MSP430FR68xx devices in LQFP-64?
Yes, the MSP430FR6820IPMR shares identical pinout and package (LQFP-64, 10 mm × 10 mm) with MSP430FR6822IPMR and MSP430FR687x variants per Device Information table and Figures 4-1/4-2. Signal mappings for eUSCI, timers, LCD, and JTAG are consistent across these PM/RGC packages, enabling drop-in replacement where memory or peripheral differences are acceptable.
What is the typical current consumption of the MSP430FR6820IPMR in RTC-only mode?
The MSP430FR6820IPMR consumes 0.35 µA typical in LPM3.5 mode (RTC active with VLO clock), as specified in the Features section and confirmed in Section 5.9 of the SLASE23E datasheet. This value assumes 3.3-V supply, 32-kHz crystal operation, and no active peripherals-making it suitable for decade-long battery operation in heat cost allocators.
MSP430FR6820IPMR 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:
- 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:
MSP430FR6820IPMR FAQ
1.How can I place an order for MSP430FR6820IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6820IPMR 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 MSP430FR6820IPMR reliable?
The price and inventory of MSP430FR6820IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6820IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR6820IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6820IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6820IPMR?
MSP430FR6820IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6820IPMR 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 MSP430FR6820IPMR?
For technical support, including MSP430FR6820IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6820IPMR requirements.
6.How does Aetrix verify that MSP430FR6820IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6820IPMR 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 MSP430FR6820IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR6820IPMR?
All MSP430FR6820IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6820IPMR, 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 MSP430FR6820IPMR part is unused and in its original packaging.
Return procedure for MSP430FR6820IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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