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Texas Instruments MSP430FR6920IPMR
- Part No.:
- MSP430FR6920IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR6920IPMR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,801
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Product details
Overview
MSP430FR6920IPMR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 32KB nonvolatile memory, 2KB RAM, 12-bit ADC, integrated LCD driver (116 segments), RTC with calendar, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes.
For engineers reviewing the MSP430FR6920IPMR datasheet, MSP430FR6920IPMR pinout, MSP430FR6920IPMR application, or MSP430FR6920IPMR 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 64-pin LQFP package compatibility with industrial layout constraints.
Technical Context
The MSP430FR6920IPMR implements the CPUXV2 16-bit RISC core with a 16-MHz DCO clock and low-frequency LFXT crystal interface (32 kHz) - but excludes HFXT oscillator circuitry per device family specification. Its power architecture supports seven low-power modes, including LPM3.5 (RTC active, FRAM retained) and LPM4.5 (shutdown at 0.04 µA).
Peripherals are tightly coupled via three-channel DMA and unified FRAM addressing. The device integrates a 32-bit hardware multiplier, CRC16/CRC32 engines, five 16-bit timers (TA0–TA3, TB0), and analog subsystems including an 8-channel comparator and programmable VREF for ADC operation - all accessible without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz - enables deterministic real-time control with low code footprint |
| Nonvolatile Memory | 32 KB FRAM - supports 10¹⁵ write cycles, 125 ns/word write speed, unified program/data/storage space |
| RAM | 2 KB SRAM + 26 B Tiny RAM - retains critical state during LPM3/LPM3.5 with zero recovery latency |
| ADC | 12-bit SAR ADC with internal reference and sample-and-hold - supports up to 8 external channels for sensor interfacing |
| LCD Driver | Integrated 116-segment LCD controller with contrast control - eliminates external display driver IC in metering designs |
| Real-Time Clock | Calendar-mode RTC clocked by 32-kHz crystal - consumes 0.35 µA typical in LPM3.5 for timekeeping without CPU wake |
| Security | AES-256 coprocessor with true random seed - accelerates secure firmware updates and data encryption in endpoint devices |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, two-cell alkaline, or regulated 3.3-V rails |
Pinout & Package
The MSP430FR6920IPMR is housed in a 64-pin LQFP package (10 mm × 10 mm) with exposed thermal pad (not electrically connected). Pin functions support multiplexed I/O, capacitive touch sensing on all ports, and dedicated LCD segment/com drivers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with TA0/TA1 timer, ADC, VREF, DMAE0 | Supports capacitive touch, analog input, and timer capture/compare without external components |
| P2.0–P2.3 | UART0 TX/RX/STE/CLK, RTCCLK, TB0OUTH, DMAE0 | Enables BSL programming via UART and low-power RTC synchronization with external clocks |
| P3.0–P3.7 | UCB1/UCB0/TA3 peripherals, TB0.0–TB0.3, UCA1 SPI/I²C | Provides dual serial interfaces for sensor hub communication and LCD segment timing control |
| P6.0–P6.6 | LCD COM0–COM3, R23/R13/LCDCAP, COUT | Drives up to 116-segment LCD directly; R33/LCDCAP sets bias voltage for contrast tuning |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects 32-kHz crystal for RTC and low-power clock domain - no HFXT pins present |
| RST/NMI/SBWTDIO | Reset, NMI, JTAG/SBW debug I/O | Single-pin 4-wire Spy-Bi-Wire interface enables in-system debugging with minimal PCB footprint |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB nonvolatile memory with 10¹⁵ write endurance and 125 ns write speed - eliminates flash wear leveling and write latency in logging applications |
| Ultra-Low-Power Modes | LPM3.5 draws only 0.35 µA with RTC active and FRAM retained - extends 10-year battery life in gas/water meters |
| Capacitive Touch I/O | All GPIO pins support touch sensing without external RC networks - reduces BOM cost and board area in thermostats and portable medical devices |
| Integrated LCD Driver | 116-segment static/2–4 mux driver with programmable contrast - removes need for external LCD controller in utility meter displays |
| AES-256 Encryption | Dedicated hardware coprocessor with true random number seed - enables secure OTA updates and encrypted sensor data transmission |
| Peripheral Interconnect | Three-channel DMA with automatic peripheral-to-peripheral transfers - offloads CPU during ADC sampling, LCD refresh, and UART streaming |
Applications
| Heat Cost Allocators | Utility Meters (Electricity/Water/Gas) |
|---|---|
Use Scenario: Thermal energy measurement in multi-dwelling heating systems using temperature differentials and flow rate. IC Role / Device Role / Timing Role: MSP430FR6920IPMR acts as main controller, managing dual temperature ADC inputs, RTC-based billing intervals, and LCD display of consumption data. Use Value: FRAM enables reliable hourly log storage across 10+ years without degradation; LPM3.5 RTC ensures accurate time-stamped readings during battery-only operation. | Use Scenario: Battery-powered endpoint metering with AMR/AMI communication, tamper detection, and tariff switching. IC Role / Device Role / Timing Role: MSP430FR6920IPMR serves as metrology host, executing pulse counting, LCD UI, AES-encrypted data packaging, and low-power wake-up for RF transmission windows. Use Value: Integrated AES-256 and secure memory segmentation protect firmware and tariff tables; 0.35 µA RTC mode meets EN13757-3 battery life requirements. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless HVAC control with ambient/sensor fusion, user interface, and schedule-based actuation. IC Role / Device Role / Timing Role: MSP430FR6920IPMR manages capacitive touch keys, temperature/humidity ADC, RTC calendar, and BLE interface timing via eUSCI_A0. Use Value: All-port capacitive touch eliminates mechanical buttons and overlays; FRAM stores calibration offsets and usage history without wear-out risk. | Use Scenario: Handheld diagnostic tools requiring low-power operation, analog signal acquisition, and clear display feedback. IC Role / Device Role / Timing Role: MSP430FR6920IPMR performs ECG/SpO₂ signal conditioning, real-time FFT via MPY32, LCD waveform rendering, and battery monitoring. Use Value: 12-bit ADC with internal reference ensures consistent sensor accuracy; 2 KB RAM supports real-time buffer processing without external memory. |
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 | 64 KB FRAM, same package/peripherals, includes AES-256 - differs only in memory size and ordering code | Preferred where extended data logging or larger firmware image is required; identical pinout and software compatibility | Select MSP430FR6922IPMR if >32 KB nonvolatile storage is needed for firmware + logs; otherwise MSP430FR6920IPMR optimizes cost and power |
| MSP430FR6820IPMR | No AES-256 coprocessor, same FRAM/RAM/peripherals - functionally identical except security module omission | Suitable for cost-sensitive, non-secure metering or sensor nodes where encryption is not mandated by regulation | Choose MSP430FR6820IPMR when AES is unnecessary; it shares full software and layout compatibility with MSP430FR6920IPMR |
Compared with MSP430FR6922IPMR and MSP430FR6820IPMR, the MSP430FR6920IPMR delivers optimal balance of secure firmware execution (AES-256), sufficient 32 KB FRAM for firmware+logs, and lowest system BOM cost - making it ideal for certified utility meter designs requiring long-term reliability without over-provisioning.
Availability
MSP430FR6920IPMR is available at Aetrix Electronics and suitable for utility metering, heat cost allocation, and portable medical equipment requiring stable component supply, long-lifecycle assurance, and TI-qualified production traceability.
Supply support for MSP430FR6920IPMR 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 for industrial, automotive, and consumer markets.
The MSP430FRxx FRAM microcontroller product line targets ultra-low-power sensing and metering applications - designed to maximize battery life while integrating FRAM, LCD, RTC, and security in a single chip for utility and building automation systems.
FAQ
What is the maximum operating frequency of the MSP430FR6920IPMR?
The MSP430FR6920IPMR features a factory-trimmed DCO (Digitally Controlled Oscillator) supporting up to 16 MHz operation. This maximum frequency applies under recommended operating conditions (VCC ≥ 2.2 V); at lower supply voltages, the achievable clock rate decreases per the device's SVS thresholds and DCO calibration table in the datasheet. The MSP430FR6920IPMR does not include HFXT circuitry, so high-frequency crystal support is unavailable.
Does the MSP430FR6920IPMR support hardware AES encryption?
Yes, the MSP430FR6920IPMR includes a dedicated 128/256-bit AES security coprocessor. This hardware engine accelerates encryption and decryption operations independently of the CPU, reducing both execution time and power consumption. The MSP430FR6920IPMR uses the same AES module as other MSP430FR69xx devices, enabling secure firmware updates and encrypted data transmission in utility metering and IoT endpoints.
What LCD configurations does the MSP430FR6920IPMR support?
The MSP430FR6920IPMR integrates the LCD_C peripheral supporting up to 116 segments in static, 2-mux, 3-mux, or 4-mux configurations. It drives common outputs (COM0–COM3) and segment lines via dedicated pins (e.g., P6.x, P9.x), with programmable contrast control and charge pump support. The MSP430FR6920IPMR's LCD driver is fully functional in LPM3 and LPM3.5 modes, enabling display updates without waking the CPU.
Is the MSP430FR6920IPMR pin-compatible with the MSP430FR6922IPMR?
Yes, the MSP430FR6920IPMR and MSP430FR6922IPMR share identical 64-pin LQFP (PM) packaging, pin assignments, electrical characteristics, and peripheral mappings. They differ only in FRAM capacity (32 KB vs. 64 KB) and inclusion of the AES-256 coprocessor - both present in MSP430FR6920IPMR. Software and PCB layouts are fully interchangeable between these two variants.
What crystal frequency is required for the RTC in the MSP430FR6920IPMR?
The MSP430FR6920IPMR RTC requires a 32.768-kHz (32 kHz) tuning-fork crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT). The device datasheet specifies use of a 3.7-pF load capacitance crystal for optimal accuracy and stability. No external loading capacitors are required when using TI-recommended crystals, as the internal oscillator circuit provides precise biasing.
MSP430FR6920IPMR 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:
MSP430FR6920IPMR FAQ
1.How can I place an order for MSP430FR6920IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6920IPMR 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 MSP430FR6920IPMR reliable?
The price and inventory of MSP430FR6920IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6920IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR6920IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6920IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6920IPMR?
MSP430FR6920IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6920IPMR 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 MSP430FR6920IPMR?
For technical support, including MSP430FR6920IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6920IPMR requirements.
6.How does Aetrix verify that MSP430FR6920IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6920IPMR 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 MSP430FR6920IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR6920IPMR?
All MSP430FR6920IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6920IPMR, 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 MSP430FR6920IPMR part is unused and in its original packaging.
Return procedure for MSP430FR6920IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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