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Texas Instruments MSP430FR6922IG56
- Part No.:
- MSP430FR6922IG56
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR6922IG56.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,763
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Product details
Overview
MSP430FR6922IG56 from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in a 56-pin TSSOP package, featuring 64KB 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 targets battery-powered utility meters and portable medical devices.
For engineers reviewing the MSP430FR6922IG56 datasheet, MSP430FR6922IG56 pinout, MSP430FR6922IG56 application, or MSP430FR6922IG56 equivalent, key selection criteria include FRAM endurance (1015 writes), RTC current draw (0.35 µA in LPM3.5), LCD segment count (116), AES256 support, and TSSOP-56 package compatibility for space-constrained metering designs.
Technical Context
The MSP430FR6922IG56 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, LFXT (32-kHz crystal), and VLO - but excludes HFXT, confirming absence of high-frequency crystal support per device family documentation.
Peripherals include dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (I²C/SPI) modules, three 16-bit timers (TA0–TA3, TB0), 32-bit hardware multiplier, CRC16/CRC32 engines, and capacitive touch I/O on all ports without external components - all mapped to its 56-pin DGG package with verified pin assignments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2, up to 16-MHz operation - enables deterministic real-time control with low gate count and minimal power overhead. |
| Nonvolatile Memory | 64KB FRAM with 1015 write cycles - eliminates flash wear-out concerns in frequent data-logging applications like heat cost allocators. |
| Power Consumption | 0.35 µA typical in RTC-active LPM3.5 mode - supports >10-year battery life in utility meters using coin-cell batteries. |
| ADC | 12-bit SAR ADC with internal reference and 8 external input channels - enables direct sensor interface for temperature, pressure, or flow sensing without external signal conditioning. |
| LCD Driver | Integrated 116-segment LCD controller with contrast control - drives full-feature displays in thermostats and portable medical equipment without external glass drivers. |
| Security | AES256 encryption/decryption coprocessor - accelerates secure firmware updates and encrypted data transmission in smart metering deployments. |
| Package | TSSOP-56 (6.1 mm × 14 mm) - provides compact, surface-mount footprint compatible with automated assembly and legacy PCB layouts. |
Pinout & Package
TSSOP-56 (DGG) package, 6.1 mm × 14 mm body size, 0.5 mm pitch, thermally enhanced for industrial ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (P4.3) | UCA0SOMI / UCA0RXD / UCB1STE | Primary SPI MISO or UART RX for peripheral communication; STE enables slave select in SPI mode. |
| 19 (TEST) | SBWTCK | Two-wire Spy-Bi-Wire clock for debug and programming - replaces JTAG pins to save package real estate. |
| 20 (RST/NMI) | Reset / Non-maskable interrupt | Active-low reset with NMI capability - ensures reliable startup and fault recovery in safety-critical metering functions. |
| 51 (PJ.4) | LFXIN | Low-frequency crystal input (32 kHz) - connects directly to external tuning-fork crystal for RTC accuracy ±20 ppm. |
| 52 (PJ.5) | LFXOUT | Low-frequency crystal output - completes oscillator circuit for RTC timekeeping independent of main system clock. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory enabling simultaneous code execution and data logging without erase delays or wear leveling. |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external components - reduces BOM cost and board area in thermostat and medical UIs. |
| Real-Time Clock (RTC) | Calendar + alarm functions with 0.35 µA LPM3.5 current - maintains accurate timekeeping during deep sleep for scheduled wake-up events. |
| eUSCI Peripherals | Dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (I²C/SPI) - supports concurrent communication with display, sensor, and RF modules. |
| Low-Power Modes | Seven defined LPMs including LPM4.5 (0.04 µA shutdown) - extends battery life in intermittent-sensing applications like water metering. |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Thermal energy measurement in multi-dwelling heating systems with periodic wireless data upload. IC Role / Device Role / Timing Role: Main controller managing temperature differential sampling, FRAM-based consumption logging, and RTC-triggered transmission windows. Use Value: 64KB FRAM stores >1 year of hourly consumption data; 0.35 µA RTC mode enables 10+ year battery life on CR2032. |
Use Scenario: Battery-powered endpoint in AMI networks, performing metrology, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: System-on-chip handling ADC sampling, AES256 encryption, LCD display, and IrDA/UART communication with concentrators. Use Value: Integrated AES256 accelerates secure OTA updates; 116-segment LCD drives compliance-mandated display fields without external drivers. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless HVAC controllers with touch-sensitive UI, ambient sensing, and schedule-based actuation. IC Role / Device Role / Timing Role: Central MCU executing PID loop, capacitive touch decoding, and LCD refresh via integrated driver. Use Value: All-port capacitive touch eliminates external ICs; FRAM retains calibration and user preferences across power cycles. |
Use Scenario: Handheld glucose monitors or pulse oximeters requiring low-power operation, analog sensor interfacing, and secure data storage. IC Role / Device Role / Timing Role: Sensor hub acquiring ADC data, applying digital filtering, storing results in FRAM, and displaying via LCD. Use Value: 12-bit ADC with internal reference achieves ±0.5% accuracy; 2KB RAM buffers real-time signal processing without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6922IPM | 64-pin LQFP package (10 mm × 10 mm); identical FRAM, peripherals, and electrical specs. | Better thermal dissipation and higher I/O count (51 vs. 46 usable pins); suited for prototyping or designs needing more GPIO. | Select when board layout allows larger footprint and additional I/O is required for expansion or debugging. |
| MSP430FR69221IG56 | Same TSSOP-56 package and pinout; differs only in bootloader type (I²C BSL vs. UART BSL on MSP430FR6922IG56). | No functional difference in runtime operation; BSL interface affects factory programming method only. | Choose based on production programming infrastructure - UART BSL simplifies field updates via serial interface. |
Compared with MSP430FR6922IPM, the MSP430FR6922IG56 saves 34% board area but sacrifices 5 GPIOs; versus MSP430FR69221IG56, it enables UART-based bootloader access without requiring I²C host coordination during firmware deployment.
Availability
MSP430FR6922IG56 is available at Aetrix Electronics and suitable for utility metering, portable medical instrumentation, and thermostat control requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR6922IG56 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 over 50 years of innovation in low-power microcontrollers and precision analog technology.
The MSP430FRxx family was designed specifically for ultra-low-power sensing and metering applications, combining FRAM nonvolatility, sub-µA RTC operation, and integrated peripherals to eliminate external components in battery-operated endpoints.
FAQ
What is the maximum operating frequency of the MSP430FR6922IG56?
The MSP430FR6922IG56 supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO). This frequency is factory-trimmed across 10 selectable settings and can be further calibrated using the built-in reference. The device does not support HFXT (high-frequency crystal), so external crystals above 32 kHz are not used - all timing derives from DCO, LFXT, or VLO sources. MSP430FR6922IG56 maintains full functionality and specification compliance at 16 MHz within its 1.8 V–3.6 V supply range.
Does the MSP430FR6922IG56 support hardware AES encryption?
Yes, the MSP430FR6922IG56 includes a dedicated 128/256-bit AES security coprocessor that performs encryption and decryption in hardware, offloading the CPU and reducing latency. This module supports standard AES-128 and AES-256 algorithms and is accessible via memory-mapped registers. Unlike lower-tier variants (e.g., MSP430FR682x), the MSP430FR6922IG56 explicitly implements AES256 per the device comparison table and functional block diagram - making it suitable for secure firmware updates and encrypted data logging in utility metering applications.
How many I/O pins are available on the MSP430FR6922IG56 in the TSSOP-56 package?
The MSP430FR6922IG56 in the TSSOP-56 (DGG) package provides 46 usable general-purpose I/O pins. This count excludes power (DVCC/DVSS/AVCC/AVSS), crystal (LFXIN/LFXOUT), debug (TEST/RST), and dedicated function pins (e.g., LCDCAP, LCDREF). Pin multiplexing allows each I/O to serve multiple roles - including capacitive touch, timer capture/compare, UART, I²C, and ADC inputs - with configuration controlled via port register settings. All 46 pins support programmable pullup/pulldown and edge-selectable wakeup from low-power modes.
What LCD segment drive capability does the MSP430FR6922IG56 offer?
The MSP430FR6922IG56 integrates an LCD_C peripheral supporting up to 116 segments in static, 2-, 3-, or 4-mux configurations. In the TSSOP-56 package, it drives up to 100 segments due to pin count limitations - confirmed by the Device Comparison table showing "116 seg / 100 seg (DGG)" for LCD_C. Contrast is adjustable via software-controlled charge pump voltage, and the module operates independently in LPM3.5, allowing display updates while the CPU remains asleep - a key feature for battery-powered thermostats and meters using MSP430FR6922IG56.
Is the MSP430FR6922IG56 pin-compatible with other devices in the MSP430FR69xx family?
The MSP430FR6922IG56 is pin-compatible with other TSSOP-56 variants in the same family - specifically MSP430FR69221IG56, MSP430FR6920IG56, and MSP430FR682xIG56 - sharing identical pinout, electrical characteristics, and package dimensions. Differences between these parts lie solely in memory size (32KB vs. 64KB FRAM), bootloader type (UART vs. I²C BSL), and AES inclusion (present in MSP430FR692x, absent in MSP430FR682x). No PCB redesign is needed when migrating among these DGG-package devices, provided firmware accounts for memory and peripheral variations. MSP430FR6922IG56 remains fully compatible at the hardware level.
MSP430FR6922IG56 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- 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:
MSP430FR6922IG56 FAQ
1.How can I place an order for MSP430FR6922IG56 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6922IG56 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 MSP430FR6922IG56 reliable?
The price and inventory of MSP430FR6922IG56 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6922IG56 is usually 5 days.
3.What payment methods are accepted for MSP430FR6922IG56?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6922IG56 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6922IG56?
MSP430FR6922IG56 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6922IG56 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 MSP430FR6922IG56?
For technical support, including MSP430FR6922IG56 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6922IG56 requirements.
6.How does Aetrix verify that MSP430FR6922IG56 is sourced from the original manufacturer or authorized distributors?
All MSP430FR6922IG56 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 MSP430FR6922IG56 meets industry standards.
7.What is the process for return or replacement of MSP430FR6922IG56?
All MSP430FR6922IG56 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6922IG56, 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 MSP430FR6922IG56 part is unused and in its original packaging.
Return procedure for MSP430FR6922IG56:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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