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Texas Instruments MSP430FR6928IPM
- Part No.:
- MSP430FR6928IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR6928IPM.pdf
- Description:
- IC MCU 16BIT 96KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,623
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Product details
Overview
MSP430FR6928IPM from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 96KB nonvolatile memory, 2KB RAM, integrated LCD driver (up to 116 segments, 4-mux), 12-bit ADC (8 external inputs), and real-time clock with calendar. It operates from 1.8 V to 3.6 V and targets battery-powered utility metering and data logging applications.
For engineers reviewing the MSP430FR6928IPM datasheet, MSP430FR6928IPM pinout, MSP430FR6928IPM application, or MSP430FR6928IPM equivalent, key selection factors include its LPM3.5 RTC current (0.35 µA), FRAM endurance (10¹⁵ write cycles), capacitive touch I/O support on all ports P1–P10/PJ, and absence of HFXT oscillator-confirmed for MSP430FR692x family.
Technical Context
The MSP430FR6928IPM implements the MSP430 CPUXV2 core with 16 registers and executes instructions at up to 16 MHz using a factory-trimmed DCO or 32-kHz LFXT crystal. Its low-power architecture includes seven defined modes, with LPM3.5 enabling RTC operation while retaining FRAM contents and waking on external interrupts from ports P1–P4.
Peripherals are tightly coupled via a unified bus: three-channel DMA services ADC12_B, eUSCI_A0/A1 (UART/IrDA/SPI), eUSCI_B0/B1 (I²C/SPI), AES256 coprocessor, and Timer_A/B modules-including TA3 with five capture/compare registers. The device lacks HFXIN/HFXOUT pins and does not support high-frequency crystal oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation with DCO or LFXT clock source |
| FRAM Capacity | 96 KB nonvolatile memory with 125-ns word write speed and 10¹⁵ write-cycle endurance |
| ADC Resolution | 12-bit SAR ADC with internal reference, sample-and-hold, and 8 external input channels |
| LCD Driver | Integrated LCD_C module supporting up to 116 segments in 4-mux configuration |
| RTC Current (LPM3.5) | 0.35 µA typical-enables decade-scale battery life in timekeeping-critical metering |
| Supply Voltage Range | 1.8 V to 3.6 V-compatible with coin-cell (e.g., CR2032) and 2xAA primary battery systems |
| Capacitive Touch | All 52 GPIOs (P1–P10, PJ) support CTSIO without external components |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, JEDEC MS-026), thermally enhanced with exposed pad (not electrically connected per TI documentation). Pin 1 marked by dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / A0 / C0 / VREF− | Analog input / reference sink | ADC channel 0 input; negative reference terminal for internal VREF generator |
| P6.3 / COM0 | LCD common output | Drives first LCD backplane segment; enables multiplexed display with up to 7 COM lines |
| PJ.4 / LFXIN | Low-frequency crystal input | Accepts 32.768-kHz tuning-fork crystal for RTC and low-power timing (no internal load caps) |
| RST/NMI/SBWTDIO | Reset / NMI / debug I/O | Active-low reset with NMI capability; bidirectional JTAG/Spy-Bi-Wire debug interface pin |
| DVCC1 / DVCC2 / DVCC3 / DVCC4 | Digital supply rails | Four independent 1.8–3.6 V digital power pins-require local decoupling per TI layout guidelines |
| AVCC1 / AVSS1 / AVSS2 / AVSS3 | Analog supply and ground | Dedicated analog power domain for ADC, comparator, and LCD charge pump-must be filtered separately |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 96 KB unified memory space eliminates separate program/data/storage partitions-reduces firmware complexity and enables atomic logging |
| Ultra-Low-Power RTC | 0.35 µA in LPM3.5 mode with calendar and alarm functions-supports 10+ year operation on CR2032 battery |
| Capacitive Touch I/O | All 52 GPIOs support CTSIO natively-enables button/slider interfaces without external RC networks or dedicated ICs |
| AES256 Security Coprocessor | Hardware-accelerated encryption/decryption with 128- or 256-bit keys-secures firmware updates and metering data payloads |
| eUSCI Peripherals | Dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (I²C/SPI) modules-support bootloader (BSL) over UART or I²C with no external components |
Applications
| Water Metering | Heat Cost Allocation |
|---|---|
Use Scenario: Battery-powered ultrasonic or mechanical water meter with hourly flow logging and tamper detection. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing FRAM-based event logs, and driving LCD display with RTC timestamping. Use Value: 0.35 µA RTC current extends CR2032 battery life beyond 10 years; FRAM enables reliable power-loss-safe logging of meter readings and alarms. |
Use Scenario: Compact thermal energy allocator mounted on radiators, measuring temperature differentials and runtime. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog temperature inputs, computing heat consumption, and storing daily totals in FRAM. Use Value: Integrated 12-bit ADC with internal reference eliminates external precision references; capacitive touch supports user interface on sealed front panel. |
| Portable Medical Logging | Industrial Data Logger |
Use Scenario: Handheld glucose monitor or blood pressure cuff with Bluetooth LE connectivity and historical trend storage. IC Role / Device Role / Timing Role: Primary MCU handling sensor acquisition, calibration, display, and secure data export via UART to BLE module. Use Value: AES256 coprocessor encrypts patient health records before transmission; FRAM endurance supports >100,000 daily log entries over product lifetime. |
Use Scenario: Rugged environmental logger deployed in remote locations, recording temperature/humidity/pressure every 15 minutes for 1 year. IC Role / Device Role / Timing Role: Autonomous data acquisition node with wake-on-interrupt, FRAM circular buffer, and LCD status display. Use Value: LPM4.5 shutdown current of 0.02 µA minimizes quiescent drain during idle periods; unified FRAM simplifies firmware buffer management. |
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 |
|---|---|---|---|
| MSP430FR6927IPM | 64 KB FRAM (vs. 96 KB), identical package, peripherals, and power specs | Suitable for simpler metering with smaller code footprint and reduced data logging depth | Select when application firmware size and FRAM usage remain under 64 KB-reduces cost without sacrificing peripheral capability |
| MSP430FR6977IPN | 64 KB FRAM, 80-pin LQFP, adds HFXT support and 16 external ADC inputs (vs. 8) | Required for designs needing higher clock stability, extended analog sensing, or larger I/O count | Choose only if HFXT oscillator, additional ADC channels, or extra GPIOs are mandatory-adds PCB area and BOM cost |
Compared with MSP430FR6927IPM, the MSP430FR6928IPM provides 32 KB more FRAM for extended data retention and firmware flexibility; versus MSP430FR6977IPN, it trades HFXT and extra ADC channels for lower cost and smaller footprint in cost-sensitive metering.
Availability
MSP430FR6928IPM is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical logging requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6928IPM 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 energy efficiency and reliability.
The MSP430 ULP FRAM portfolio targets battery-operated industrial and utility applications where ultra-low active/standby current, nonvolatile memory endurance, and integrated peripherals reduce system-level BOM and power design complexity.
FAQ
What is the maximum operating frequency of the MSP430FR6928IPM?
The MSP430FR6928IPM supports up to 16 MHz operation using its factory-trimmed DCO oscillator or an external 32-kHz LFXT crystal with internal frequency multiplication. It does not support HFXT crystals-this limitation is explicitly documented for the MSP430FR692x family in the SLAS797C datasheet revision history and functional block diagrams.
Does the MSP430FR6928IPM support hardware AES encryption?
Yes, the MSP430FR6928IPM integrates a dedicated AES256 security coprocessor capable of both encryption and decryption using 128-bit or 256-bit keys. This hardware accelerator offloads cryptographic operations from the CPU, reducing execution time and power consumption during secure firmware updates or encrypted data transmission in applications like smart meters.
How many LCD segments can the MSP430FR6928IPM drive?
The MSP430FR6928IPM drives up to 116 segments in a 4-mux configuration using its integrated LCD_C module. This is confirmed in Table 3-1 of the SLAS797C datasheet, which specifies "116 seg (4 mux)" for the MSP430FR6928. The device does not support the 240/320-segment configurations available on larger-family members like the MSP430FR6979.
What is the standby current consumption of the MSP430FR6928IPM in LPM3 mode?
In LPM3 mode with VLO enabled, the MSP430FR6928IPM consumes 0.4 µA typical, as specified in Section 1.1 "Features" of the SLAS797C datasheet. This current includes operation of the basic clock system and RAM retention but excludes RTC functionality-LPM3.5 (RTC active) draws 0.35 µA typical, a lower value due to optimized RTC domain isolation.
Which communication interfaces are supported by the MSP430FR6928IPM for bootloader use?
The MSP430FR6928IPM supports hardware bootloader (BSL) over UART (via eUSCI_A0/A1) or I²C (via eUSCI_B0/B1), as confirmed in Table 3-1 and Table 3-2 of the SLAS797C datasheet. The specific BSL interface depends on device variant ordering-UART BSL uses P2.0/P2.1, while I²C BSL uses P1.6/P1.7-but both are implemented in the same MSP430FR6928IPM silicon.
MSP430FR6928IPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- 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:
- 52
- Program Memory Size:
- 96KB (96K 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:
MSP430FR6928IPM FAQ
1.How can I place an order for MSP430FR6928IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6928IPM 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 MSP430FR6928IPM reliable?
The price and inventory of MSP430FR6928IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6928IPM is usually 5 days.
3.What payment methods are accepted for MSP430FR6928IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6928IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6928IPM?
MSP430FR6928IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6928IPM 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 MSP430FR6928IPM?
For technical support, including MSP430FR6928IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6928IPM requirements.
6.How does Aetrix verify that MSP430FR6928IPM is sourced from the original manufacturer or authorized distributors?
All MSP430FR6928IPM 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 MSP430FR6928IPM meets industry standards.
7.What is the process for return or replacement of MSP430FR6928IPM?
All MSP430FR6928IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6928IPM, 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 MSP430FR6928IPM part is unused and in its original packaging.
Return procedure for MSP430FR6928IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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