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Texas Instruments MSP430FR6922IRGCR
- Part No.:
- MSP430FR6922IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR6922IRGCR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
MSP430FR6922IRGCR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, integrated 12-bit ADC with 8 external channels, 116-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 portable sensing systems.
For engineers reviewing the MSP430FR6922IRGCR datasheet, MSP430FR6922IRGCR pinout, MSP430FR6922IRGCR application, or MSP430FR6922IRGCR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC calendar mode in LPM3.5 (0.35 µA), capacitive touch I/O without external components, and AES-256 encryption coprocessor support - all validated for heat cost allocators and smart thermostats.
Technical Context
The MSP430FR6922IRGCR implements the CPUXV2 16-bit RISC core with hardware multiplier and three-channel DMA, enabling deterministic real-time processing in ultra-low-power modes. Its clock system integrates DCO (10 factory-trimmed frequencies), LFXT (32-kHz crystal), and VLO, but excludes HFXT - confirmed by functional block diagram notes specific to FR692x devices.
Peripherals include five 16-bit timers (TA0–TA3, TB0) with capture/compare capability, CRC16/CRC32 engines, and eUSCI_A0/A1 (UART/IrDA/SPI) plus eUSCI_B0/B1 (I²C/SPI). The device supports UART-based BSL and features 52 GPIO pins across 10 ports (P1–P9, PJ), all with capacitive touch capability and edge-selectable LPM wakeup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC with 32-bit hardware multiplier - enables fast math-intensive sensor fusion without external co-processor |
| Nonvolatile Memory | 64KB FRAM with 10¹⁵ write endurance and 125 ns/word write speed - eliminates flash wear-out concerns in frequent data logging |
| Power Consumption | LPM3.5 (RTC active): 0.35 µA typical - extends 10-year battery life in gas/water meter applications |
| Analog Peripherals | 12-bit ADC with internal reference and 8 external inputs; 8-channel analog comparator - supports multi-sensor analog front-end without external signal conditioning |
| Display Interface | Integrated 116-segment LCD driver with contrast control - drives custom alphanumeric displays in thermostats and utility meters |
| Security | AES-256 encryption/decryption coprocessor with true random number seed - meets firmware integrity and secure communication requirements for smart metering |
| Package | VQFN-64 (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad - enables compact PCB layout and efficient thermal dissipation in sealed enclosures |
Pinout & Package
VQFN-64 package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad recommended to be connected to DVSS per TI design guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC, timer, and eUSCI functions | Supports simultaneous analog input (A0–A3), timer capture (TA0.0–TA0.2), and UART (UCA0RXD/UCA0TXD) - enables mixed-signal sensor node integration |
| P2.0–P2.3 | UART BSL interface (BSL_TX/BSL_RX), RTC clock, and timer outputs | Enables field firmware updates via UART without external programmer; RTCCLK input allows precise timekeeping synchronization |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), eUSCI_A1 (UART/SPI), and Timer_B0 channels | Provides dual independent serial interfaces - eUSCI_B1 for sensor I²C bus, eUSCI_A1 for host communication or display SPI |
| P6.0–P6.6 | LCD segment drivers (COM0–COM3) and reference voltage | Drives up to 116 segments in 4-mux configuration; LCDREF pin supplies stable bias for high-contrast display operation |
| PJ.4/PJ.5 | LFXT crystal oscillator inputs (LFXIN/LFXOUT) | Supports 32.768-kHz crystal for RTC accuracy ±20 ppm; no HFXT support per FR692x family specification |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory space enabling atomic writes, zero-wait-state execution, and 10¹⁵ endurance - ideal for cyclic data logging in utility meters |
| Capacitive Touch I/O | All 52 GPIO pins support CSD without external components - reduces BOM cost and board area in thermostat and portable medical device UIs |
| Ultra-Low-Power RTC | 0.35 µA in LPM3.5 with calendar and alarm - maintains accurate timekeeping for 10+ years on coin-cell battery |
| Hardware Security | Dedicated AES-256 coprocessor with lockable memory segments - protects firmware IP and enables secure over-the-air updates |
| Flexible Clock System | DCO with 10 factory-trimmed frequencies + LFXT - eliminates need for external clock source while maintaining timing precision for ADC sampling |
Applications
| Heat Cost Allocators | Smart Thermostats |
|---|---|
|
Use Scenario: Measuring radiator heat output via temperature differentials and flow rate in district heating systems. IC Role / Device Role / Timing Role: Main controller executing thermodynamic calculations, managing LCD display, and storing hourly consumption logs in FRAM. Use Value: FRAM's 10¹⁵ write cycles ensure reliable 20-year data logging; RTC in LPM3.5 enables precise timestamping without external clock IC. |
Use Scenario: Local environmental sensing (temp/humidity), user interface control, and wireless communication coordination. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch buttons, driving segmented LCD, and managing low-duty-cycle BLE/Wi-Fi coexistence. Use Value: All-GPIO capacitive touch eliminates RC networks; integrated LCD driver reduces component count by 3+ ICs versus discrete solutions. |
| Electricity/Water Meters | Portable Medical Sensors |
|
Use Scenario: High-accuracy energy/water volume measurement with tamper detection and secure data transmission. IC Role / Device Role / Timing Role: Primary metrology controller interfacing with current sensors, performing pulse counting, and encrypting usage data before transmission. Use Value: AES-256 coprocessor enables compliance with DLMS/COSEM security profiles; FRAM ensures tamper-proof event logging with sub-second timestamps. |
Use Scenario: Battery-powered wearable or handheld devices measuring physiological signals (ECG, SpO₂) with local display and storage. IC Role / Device Role / Timing Role: Signal acquisition hub acquiring analog sensor data via ADC, applying digital filtering, and displaying results on integrated LCD. Use Value: 12-bit ADC with internal reference achieves <1% total unadjusted error; LPM3.5 RTC enables scheduled wake-up for periodic measurements. |
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 |
|---|---|---|---|
| MSP430FR6922IPMR | Same FRAM/RAM/peripheral set but in 64-pin LQFP (10 mm × 10 mm) instead of VQFN-64 (9 mm × 9 mm) | LQFP offers easier prototyping and rework; VQFN provides higher I/O density and better thermal performance in production | Select MSP430FR6922IPMR for development and manual assembly; choose MSP430FR6922IRGCR for space-constrained, high-volume metering designs |
| MSP430FR6920IRGCR | 32KB FRAM (vs. 64KB), identical package, peripherals, and power specs | Suitable for simpler metering or sensing applications with lower firmware/data footprint requirements | Choose MSP430FR6920IRGCR when application code size and data logging depth fit within 32KB FRAM - reduces cost without sacrificing low-power performance |
Compared with MSP430FR6922IPMR, the MSP430FR6922IRGCR delivers identical functionality in a smaller, thermally optimized VQFN package ideal for sealed meter housings; versus MSP430FR6920IRGCR, it doubles FRAM capacity for extended firmware versioning and long-term historical data retention.
Availability
MSP430FR6922IRGCR is available at Aetrix Electronics and suitable for utility metering, smart thermostats, and portable medical equipment requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6922IRGCR 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 technologies for industrial, automotive, and consumer applications.
The MSP430FRxx FRAM microcontroller product line targets ultra-low-power, battery-operated sensing and metering systems where nonvolatile memory endurance, real-time responsiveness, and cryptographic security are critical design requirements.
FAQ
What is the maximum operating frequency of the MSP430FR6922IRGCR?
The MSP430FR6922IRGCR supports a maximum CPU clock frequency of 16 MHz using its factory-trimmed DCO or external HFXT (though HFXT is not implemented in FR692x devices per datasheet note). In practice, the device relies on DCO or LFXT sources, with DCO offering 10 selectable frequencies up to 16 MHz - sufficient for real-time sensor processing and LCD refresh without external clock components.
Does the MSP430FR6922IRGCR support hardware AES encryption?
Yes, the MSP430FR6922IRGCR includes a dedicated 128/256-bit AES security coprocessor, as confirmed in the "Code Security and Encryption" feature list and functional block diagram. This enables accelerated encryption/decryption of firmware images and telemetry data - a requirement for DLMS-compliant smart meters and secure IoT endpoints.
What LCD configurations does the MSP430FR6922IRGCR support?
The MSP430FR6922IRGCR integrates the LCD_C module supporting up to 116 segments in static, 2-, 3-, or 4-mux configurations. Pin assignments vary by package: the VQFN-64 (IRGCR) supports full 116-segment drive, with COM0–COM3 and SEG pins mapped to P6.x and P9.x. Contrast is adjustable via software-controlled charge pump voltage.
Is an external crystal required for RTC operation on the MSP430FR6922IRGCR?
Yes, the RTC requires a 32.768-kHz crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT) for calendar-mode accuracy. The datasheet specifies this configuration explicitly and notes that the RTC consumes only 0.35 µA typical in LPM3.5 with the crystal active - making it suitable for decade-long battery operation in utility meters.
How many GPIO pins with capacitive touch capability does the MSP430FR6922IRGCR provide?
The MSP430FR6922IRGCR provides 52 GPIO pins (across ports P1–P9 and PJ) with integrated capacitive touch sensing capability, requiring no external RC components. This is confirmed in the "Multifunction Input/Output Ports" feature list and applies uniformly to all pins - enabling full-keypad or slider UI implementation in thermostats and portable devices.
MSP430FR6922IRGCR 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:
- 64KB (64K 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:
MSP430FR6922IRGCR FAQ
1.How can I place an order for MSP430FR6922IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6922IRGCR 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 MSP430FR6922IRGCR reliable?
The price and inventory of MSP430FR6922IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6922IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR6922IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6922IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6922IRGCR?
MSP430FR6922IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6922IRGCR 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 MSP430FR6922IRGCR?
For technical support, including MSP430FR6922IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6922IRGCR requirements.
6.How does Aetrix verify that MSP430FR6922IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6922IRGCR 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 MSP430FR6922IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR6922IRGCR?
All MSP430FR6922IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6922IRGCR, 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 MSP430FR6922IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR6922IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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