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Texas Instruments MSP430FR6922IG56R
- Part No.:
- MSP430FR6922IG56R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR6922IG56R.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,734
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Product details
Overview
MSP430FR6922IG56R from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, integrated 116-segment LCD driver, and AES256 encryption coprocessor. It operates from 1.8 V to 3.6 V and supports real-time clock (RTC) operation at 0.35 µA in LPM3.5 mode. Designed for battery-powered utility meters and portable medical devices, it integrates capacitive touch I/O without external components.
For engineers reviewing the MSP430FR6922IG56R datasheet, MSP430FR6922IG56R pinout, MSP430FR6922IG56R application, or MSP430FR6922IG56R equivalent, key selection criteria include FRAM endurance (1015 write cycles), RTC current draw, LCD segment count (116), AES256 support, and TSSOP-56 package compatibility with space-constrained metering designs.
Technical Context
The MSP430FR6922IG56R 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 combines DCO with factory-trimmed frequencies, LFXT (32-kHz crystal), and VLO-no HFXT support per device family specification.
Peripherals include dual eUSCI_A (UART/IrDA/SPI up to 10 Mbps) and dual eUSCI_B (I²C/multi-slave addressing/SPI), three 16-bit timers (TA0–TA3, TB0), 32-bit hardware multiplier, CRC16/CRC32, and DMA controller with three channels-all operating within the same ultra-low-power envelope as the core.
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 minimal power overhead |
| Nonvolatile Memory | 64KB FRAM - provides flash-like retention with SRAM-like write speed (125 ns/word) and 1015 endurance |
| RAM | 2KB on-chip RAM - sufficient for real-time data buffering and stack depth in metering firmware |
| ADC | 12-bit SAR ADC with 8 external inputs and internal reference - supports precision sensor signal acquisition in gas/water meters |
| LCD Driver | Integrated 116-segment LCD controller with contrast control - eliminates external display driver IC in portable medical and thermostat displays |
| Security | AES256 encryption coprocessor - accelerates secure firmware updates and data-at-rest protection in utility infrastructure |
| Low-Power Mode (LPM3.5) | 0.35 µA typical with RTC active - enables decade-long battery life in heat cost allocators using coin-cell power |
| Supply Voltage Range | 1.8 V to 3.6 V - accommodates declining battery voltage in primary-cell applications without regulator overhead |
Pinout & Package
TSSOP-56 package (6.1 mm × 14 mm body size), thermally enhanced for compact meter PCBs; pin-compatible with other MSP430FR692x DGG variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC, timer, and UART functions | Multi-function pins supporting wake-on-touch, analog sensing, and serial BSL (UART or I²C) without external logic |
| P2.0–P2.3 | UART0 TX/RX/STE/CLK, RTCCLK, DMA trigger | Primary communication interface for firmware updates and sensor data streaming; RTCCLK input enables calendar-synchronized sampling |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), eUSCI_A1 (UART/SPI), Timer_B0 signals | Dual high-speed serial interfaces allow simultaneous sensor hub (I²C) and host MCU (UART) connectivity |
| P6.0–P6.6 | LCD COM0–COM3, segment drivers, reference, cap | Direct drive of 4-mux LCD segments up to 116 total - reduces bill-of-materials in thermostats and portable diagnostics |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768-kHz crystal for precise RTC timing; no HFXT pins present per device family spec |
| RST/NMI/SBWTDIO | Reset, NMI, and Spy-Bi-Wire debug I/O | Single-wire debug interface enables in-system programming and low-pin-count JTAG alternatives |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory space enabling atomic writes, zero-wear leveling overhead, and instant nonvolatile storage during brownout |
| Ultra-Low-Power RTC | 0.35 µA in LPM3.5 mode with calendar and alarm - sustains timekeeping for >10 years on CR2032 in utility meters |
| Capacitive Touch I/O | All GPIO pins support CSD without external components - reduces component count and PCB area in thermostats and handheld medical devices |
| Hardware AES256 | Dedicated encryption engine offloads CPU during secure boot and encrypted telemetry transmission - critical for ANSI C12.22 compliance |
| Segment LCD Controller | 116-segment drive with programmable contrast and static/2–4 mux support - replaces discrete display drivers in portable diagnostic tools |
| Three-Channel DMA | Enables autonomous ADC-to-FRAM transfers and SPI/I²C data movement without CPU intervention - extends active-mode battery life by >30% in sensor polling loops |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Battery-powered thermal energy measurement in apartment heating systems with 10+ year service life. IC Role / Device Role / Timing Role: Main controller managing temperature differential sampling, RTC-based billing intervals, and LCD display. Use Value: 0.35 µA RTC current and FRAM's infinite write endurance eliminate battery replacement and data corruption risks over full product lifetime. | Use Scenario: Tamper-resistant endpoint meter with encrypted consumption reporting and local display. IC Role / Device Role / Timing Role: Secure data acquisition node with AES256 encryption, 12-bit ADC for current/voltage sensing, and LCD human interface. Use Value: Integrated AES256 and FRAM enable ANSI C12.19/C12.22-compliant secure firmware updates and tamper-proof log storage without external crypto ICs. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless HVAC controller with ambient temperature/humidity sensing and local LCD feedback. IC Role / Device Role / Timing Role: Sensor fusion hub with capacitive touch UI, multi-channel ADC, and real-time scheduling via RTC alarms. Use Value: All-GPIO capacitive touch eliminates overlay sensors and reduces BOM; 116-segment LCD driver supports rich status visualization without display driver IC. | Use Scenario: Handheld blood glucose monitor or pulse oximeter requiring long battery life and clinical-grade accuracy. IC Role / Device Role / Timing Role: Precision analog front-end controller with 12-bit ADC, low-noise reference, and secure patient data logging. Use Value: Internal 12-bit ADC with sample-and-hold and stable VREF+/VREF− enables <±1 LSB INL across temperature - meeting ISO 15197:2013 accuracy requirements. |
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 | LQFP-64 package (10 mm × 10 mm); adds 3 more I/O pins vs. TSSOP-56; same FRAM, ADC, LCD, and AES specs | Better suited for designs requiring higher I/O count or easier rework/reflow; not pin-compatible with TSSOP-56 footprint | Select when board layout allows larger package and additional GPIOs are needed for expansion interfaces or redundancy |
| MSP430FR69221IG56R | I²C-based bootloader (BSL) instead of UART BSL; identical FRAM, peripherals, and power specs | Required where host-side programming uses I²C only; incompatible with UART-based field update infrastructure | Choose only if production programming infrastructure mandates I²C BSL - otherwise MSP430FR6922IG56R offers broader toolchain compatibility |
Compared with MSP430FR6922IPMR, the MSP430FR6922IG56R saves 32% PCB area in TSSOP-56 but trades 6 I/Os; versus MSP430FR69221IG56R, it retains UART BSL for universal firmware recovery in field-deployed utility endpoints.
Availability
MSP430FR6922IG56R is available at Aetrix Electronics and suitable for utility metering, portable medical diagnostics, heat cost allocation, and thermostat control requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6922IG56R 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 solutions with emphasis on power efficiency and reliability.
The MSP430FRxx FRAM microcontroller product line targets ultra-low-power sensing and measurement applications-including smart meters, portable healthcare, and building automation-where battery life, data integrity, and security are critical.
FAQ
What is the maximum operating frequency of the MSP430FR6922IG56R?
The MSP430FR6922IG56R supports a maximum CPU clock frequency of 16 MHz, enabled by its factory-trimmed DCO oscillator. This frequency is fully operational across the entire 1.8 V to 3.6 V supply range and all temperature grades specified in the datasheet. The device maintains deterministic timing at this rate while sustaining ultra-low active-mode current of approximately 100 µA/MHz.
Does the MSP430FR6922IG56R support hardware AES encryption?
Yes, the MSP430FR6922IG56R includes a dedicated 128/256-bit AES security coprocessor. This hardware accelerator performs encryption and decryption independently of the CPU, reducing firmware overhead and improving throughput for secure boot, encrypted telemetry, and firmware update validation. AES256 support is confirmed for all MSP430FR69xx devices, including the MSP430FR6922IG56R.
What LCD configuration does the MSP430FR6922IG56R support?
The MSP430FR6922IG56R integrates an LCD_C peripheral supporting up to 116 segments in static, 2-, 3-, or 4-mux configurations. It provides programmable contrast control, charge pump, and dedicated segment/COM pin mapping. The TSSOP-56 package exposes pins for up to 100 segments (DGG variant), matching the 116-segment capability documented for the family - verified in the device comparison table and functional block diagram.
Is the MSP430FR6922IG56R pin-compatible with other MSP430FR692x variants in TSSOP-56?
Yes, the MSP430FR6922IG56R shares identical pinout, electrical characteristics, and package dimensions with other MSP430FR692x devices in the 56-pin DGG (TSSOP-56) package, including MSP430FR69221IG56R and MSP430FR6920IG56R. Pin assignments, multiplexing options, and reset default states are consistent across this package group per TI's Terminal Configuration documentation.
What crystal frequency is required for the RTC on the MSP430FR6922IG56R?
The MSP430FR6922IG56R requires a 32.768-kHz tuning-fork crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT) for accurate real-time clock operation. This low-frequency crystal enables the RTC to maintain calendar and alarm functions in LPM3.5 mode at 0.35 µA typical current draw. No high-frequency crystal (HFXT) support is implemented in the MSP430FR692x family.
MSP430FR6922IG56R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- 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:
- 46
- 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:
MSP430FR6922IG56R FAQ
1.How can I place an order for MSP430FR6922IG56R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6922IG56R 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 MSP430FR6922IG56R reliable?
The price and inventory of MSP430FR6922IG56R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6922IG56R is usually 5 days.
3.What payment methods are accepted for MSP430FR6922IG56R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6922IG56R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6922IG56R?
MSP430FR6922IG56R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6922IG56R 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 MSP430FR6922IG56R?
For technical support, including MSP430FR6922IG56R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6922IG56R requirements.
6.How does Aetrix verify that MSP430FR6922IG56R is sourced from the original manufacturer or authorized distributors?
All MSP430FR6922IG56R 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 MSP430FR6922IG56R meets industry standards.
7.What is the process for return or replacement of MSP430FR6922IG56R?
All MSP430FR6922IG56R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6922IG56R, 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 MSP430FR6922IG56R part is unused and in its original packaging.
Return procedure for MSP430FR6922IG56R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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