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Texas Instruments MSP430FR6920IRGCR
- Part No.:
- MSP430FR6920IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR6920IRGCR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,994
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Product details
Overview
MSP430FR6920IRGCR 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, RTC with calendar, 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 flash wear.
For engineers reviewing the MSP430FR6920IRGCR datasheet, MSP430FR6920IRGCR pinout, MSP430FR6920IRGCR application, or MSP430FR6920IRGCR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 RTC current (0.35 µA), AES-256 encryption support, capacitive touch I/O capability, and VQFN-64 package compatibility with industrial temperature range (–40°C to 85°C).
Technical Context
The MSP430FR6920IRGCR implements a 16-bit CPUXV2 core with seven low-power modes, including LPM4.5 (0.04 µA shutdown) and LPM3.5 (0.35 µA RTC operation). Its clock system integrates DCO, VLO, and LFXT (32-kHz crystal), but excludes HFXT - confirmed by functional block diagram notes for FR692x devices.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one 16-bit Timer_B (2/5), 32-bit hardware multiplier, three-channel DMA, and dual eUSCI_A/B modules supporting UART auto-baud, IrDA, SPI (up to 10 Mbps), and I²C with multi-slave addressing - all validated in Device Comparison Table 3-1 for MSP430FR6920.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation - enables deterministic real-time control with low gate count and power efficiency. |
| Nonvolatile Memory | 32KB FRAM - provides instant write, 10¹⁵ endurance, and unified memory space for code/data/storage without erase cycles. |
| RAM | 2KB SRAM - supports fast variable storage and stack operations during active and low-power modes. |
| ADC | 12-bit SAR ADC with internal reference and 8 external channels - delivers precision analog sensing for metering and sensor interfaces. |
| LCD Driver | Integrated 116-segment LCD controller with contrast control - eliminates external display drivers in portable HMI applications. |
| Low-Power Modes | LPM3.5 (0.35 µA RTC), LPM4.5 (0.04 µA shutdown) - extends battery life to >10 years in utility meter deployments. |
| Crypto Engine | AES-256 coprocessor - accelerates secure firmware updates and encrypted data logging without CPU overhead. |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, 2xAA, or energy-harvesting sources. |
Pinout & Package
VQFN-64 package (9 mm × 9 mm) with exposed thermal pad (recommended to connect to DVSS); 64-pin layout supports full peripheral multiplexing including dual eUSCI, LCD segment outputs, ADC inputs, and capacitive touch I/O on all ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with analog/ADC/CapTouch | Supports simultaneous capacitive touch sensing, analog input (A0–A3), and timer/capture functions - no external components required. |
| P2.0–P2.3 | eUSCI_A0 UART/SPI interface | Configurable as BSL_TX/RX (UART mode) or UCA0SIMO/UCA0SOMI - enables field firmware updates via serial interface. |
| P3.0–P3.7 | eUSCI_B1 + eUSCI_A1 + Timer_B | Provides I²C slave address support, SPI master/slave, and TB0.0–TB0.3 outputs - suitable for sensor hub communication. |
| P6.0–P6.6 | LCD COM/segment outputs | Drives up to 116 segments directly; P6.3–P6.6 serve as COM0–COM3 - reduces bill-of-materials in display-integrated designs. |
| PJ.4/PJ.5 | LFXT crystal oscillator terminals | Connects 32-kHz crystal for RTC accuracy; no internal load caps - requires external 12.5 pF load per TI design guidelines. |
| RST/NMI/SBWTDIO | Reset, NMI, and Spy-Bi-Wire debug | Single-pin 2-wire JTAG alternative - enables in-system programming and debugging with minimal PCB footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB nonvolatile memory with 125 ns write speed and 10¹⁵ write-cycle endurance - eliminates flash wear leveling and write latency in data-logging applications. |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external RC networks - reduces component count and PCB area in human-interface designs. |
| Real-Time Clock (RTC) | Calendar mode with alarm and LPM3.5 current of 0.35 µA - enables time-stamped event logging with sub-microamp quiescent power. |
| Hardware AES-256 | Dedicated crypto engine with DMA-assisted operation - offloads encryption/decryption from CPU, preserving real-time responsiveness in secure metering. |
| Ultra-Low-Power Operation | Active mode at ~100 µA/MHz; standby (LPM3) at 0.4 µA - extends coin-cell battery life beyond 10 years in intermittent-sensing applications. |
| Integrated LCD Driver | 116-segment static/2–4 mux support with programmable contrast - replaces discrete display controllers in thermostats and portable medical devices. |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Compact, battery-powered heat distribution units measuring radiator surface temperature and flow time. IC Role / Device Role / Timing Role: Main controller executing thermal integration algorithms, storing hourly consumption logs in FRAM, and driving segmented LCD display. Use Value: FRAM enables infinite write cycles for daily consumption records; LPM3.5 RTC maintains accurate billing timestamps with <0.35 µA draw. | Use Scenario: Tamper-resistant smart meters collecting usage data, performing tariff calculations, and transmitting via PLC or RF. IC Role / Device Role / Timing Role: Secure host MCU managing metrology ADC, AES-encrypted data storage, and real-time billing calendar. Use Value: AES-256 coprocessor ensures firmware/data integrity; 32KB FRAM stores 10+ years of encrypted metering history without degradation. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless HVAC controllers with ambient temperature/humidity sensing, user interface, and BLE connectivity. IC Role / Device Role / Timing Role: Central processor handling sensor fusion, LCD UI rendering, capacitive touch buttons, and low-power sleep scheduling. Use Value: All-port capacitive touch eliminates mechanical switches; integrated LCD driver reduces component count by 3+ ICs. | Use Scenario: Battery-operated glucose monitors or pulse oximeters requiring precise analog measurement and data logging. IC Role / Device Role / Timing Role: Signal acquisition MCU digitizing analog biosensor outputs, applying calibration, and storing results in nonvolatile memory. Use Value: 12-bit ADC with internal reference ensures ±1 LSB INL across temperature; FRAM guarantees reliable log storage over device lifetime. |
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 |
|---|---|---|---|
| MSP430FR6922IRGCR | 64KB FRAM, same peripherals and package - differs only in memory size and AES-256 availability (confirmed present in FR6922). | Required where extended data logging capacity (>32KB) or larger program footprint is needed. | Select MSP430FR6922IRGCR if application demands >32KB nonvolatile storage or uses AES-256 features not required in MSP430FR6920IRGCR. |
| MSP430FR6820IRGCR | No AES-256 engine; otherwise identical FRAM size, peripherals, and pinout - verified in Device Comparison Tables 3-1/3-2. | Suitable for cost-sensitive metering where cryptographic acceleration is unnecessary. | Choose MSP430FR6820IRGCR when security features are omitted and BOM cost reduction is prioritized over encryption capability. |
Compared with MSP430FR6922IRGCR, the MSP430FR6920IRGCR offers reduced FRAM (32KB vs. 64KB) and identical AES-256 support, while MSP430FR6820IRGCR removes the AES engine entirely - enabling tiered selection based on memory and security requirements without PCB redesign.
Availability
MSP430FR6920IRGCR is available at Aetrix Electronics and suitable for utility metering, heat cost allocation, thermostat control, portable medical instrumentation, and sensor management systems requiring stable component supply, long-life battery operation, and certified nonvolatile data retention.
Supply support for MSP430FR6920IRGCR 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, with decades of expertise in ultra-low-power microcontrollers and energy-efficient system design.
The MSP430FR69xx product line targets battery-powered sensing and measurement applications - emphasizing FRAM-based reliability, sub-microamp RTC operation, and integrated peripherals to minimize external components in metering and HMI systems.
FAQ
What is the maximum operating frequency of the MSP430FR6920IRGCR?
The MSP430FR6920IRGCR supports a maximum CPU clock frequency of 16 MHz, achieved via its factory-trimmed DCO or external HFXT (though HFXT is not implemented in FR692x devices per functional block diagram notes - thus 16 MHz is DCO-limited). This frequency enables real-time signal processing in metrology and sensor applications while maintaining ultra-low active-mode current (~100 µA/MHz).
Does the MSP430FR6920IRGCR support hardware AES encryption?
Yes, the MSP430FR6920IRGCR includes a dedicated 128/256-bit AES security coprocessor, as explicitly stated in the "Code Security and Encryption" section and confirmed by Device Comparison Table 3-1 (AES = "yes" for MSP430FR6920). This engine accelerates encryption/decryption independently of the CPU, supporting secure firmware updates and protected data logging in utility metering applications.
What package type and dimensions does the MSP430FR6920IRGCR use?
The MSP430FR6920IRGCR uses a VQFN-64 package measuring 9 mm × 9 mm with an exposed thermal pad (RGC suffix per TI nomenclature). The thermal pad must be connected to DVSS for optimal thermal performance, as specified in the Pin Diagrams section. This RoHS-compliant package supports high-density PCB layouts and automated assembly.
How many I/O pins does the MSP430FR6920IRGCR provide, and which support capacitive touch?
The MSP430FR6920IRGCR provides 52 general-purpose I/O pins across ports P1–P9 and PJ, all of which support capacitive touch sensing without external components - a feature explicitly listed under "Multifunction Input/Output Ports". This includes P1.0–P1.7, P2.0–P2.3, P3.0–P3.7, P4.2–P4.7, P5.4–P5.7, P6.0–P6.6, P7.0–P7.4, P9.4–P9.7, and PJ.0–PJ.5.
Is an external crystal required for RTC operation on the MSP430FR6920IRGCR?
Yes, the MSP430FR6920IRGCR requires an external 32-kHz crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT) to achieve accurate RTC calendar functionality. The datasheet specifies this configuration and notes that the RTC is clocked by a 3.7-pF crystal - confirming crystal dependency. Internal VLO may be used for coarse timing but lacks calendar-grade accuracy.
MSP430FR6920IRGCR 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:
MSP430FR6920IRGCR FAQ
1.How can I place an order for MSP430FR6920IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6920IRGCR 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 MSP430FR6920IRGCR reliable?
The price and inventory of MSP430FR6920IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6920IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR6920IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6920IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6920IRGCR?
MSP430FR6920IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6920IRGCR 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 MSP430FR6920IRGCR?
For technical support, including MSP430FR6920IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6920IRGCR requirements.
6.How does Aetrix verify that MSP430FR6920IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6920IRGCR 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 MSP430FR6920IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR6920IRGCR?
All MSP430FR6920IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6920IRGCR, 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 MSP430FR6920IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR6920IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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