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Texas Instruments MSP430FR69721IPM
- Part No.:
- MSP430FR69721IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR69721IPM.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,769
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Product details
Overview
MSP430FR69721IPM 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, 112-segment LCD driver, and dual eUSCI modules supporting UART, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes.
For engineers reviewing the MSP430FR69721IPM datasheet, MSP430FR69721IPM pinout, MSP430FR69721IPM application, or MSP430FR69721IPM equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC calendar mode in LPM3.5 (0.35 µA), AES-256 encryption coprocessor, and 64-pin LQFP package compatibility with energy-constrained metering designs.
Technical Context
The MSP430FR69721IPM implements a CPUXV2 core with 16 registers and supports seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.04 µA). Its clock system integrates DCO with 10 factory-trimmed frequencies, LFXT (32 kHz crystal), and HFXT for flexible timing across sensing, display, and communication tasks.
Peripherals include three 16-bit timers (TA0–TA2, TB0) with up to seven capture/compare registers, 32-bit hardware multiplier, three-channel DMA, CRC16/CRC32 engines, and capacitive touch I/O on all ports without external components - enabling direct integration into thermostats and portable medical devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation - enables deterministic real-time control in metering firmware. |
| Nonvolatile Memory | 64KB FRAM with 10¹⁵ write endurance - eliminates flash wear-out concerns in daily logging applications. |
| RAM | 2KB SRAM + 26B Tiny RAM - sufficient for interrupt context storage and real-time data buffering. |
| ADC | 12-bit SAR ADC with internal reference and 8 external inputs - supports precision analog sensor interfacing (e.g., current transformers). |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.04 µA - extends 10+ year battery life in heat cost allocators. |
| Security | AES-256 encryption coprocessor + lockable memory segments - meets firmware IP protection requirements for utility meter firmware updates. |
| Communication | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0/B1 (I²C/SPI) - enables dual-interface connectivity for HAN and PLC communication stacks. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm), thermally enhanced with exposed pad (not electrically connected). Pin count and layout match TI's standard PM package footprint for drop-in compatibility with MSP430FR6972IPM and MSP430FR6970IPM designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC input, timer I/O | Supports simultaneous sensor reading (A0–A3), RTCCLK input, and touch-button UI without external RC networks. |
| P2.0–P2.3 | UART BSL interface (TX/RX), RTCCLK, TB0 outputs | Enables field firmware updates via UART; P2.2 provides dedicated 32-kHz RTC clock input for calendar accuracy. |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), TA1/TB0 signals | Configurable as I²C master/slave for sensor hub communication or SPI for external FRAM expansion. |
| P6.3–P6.6 | COM0–COM3 for LCD_C driver | Drives 4-backplane LCD segments up to 112 segments - suitable for multi-line utility meter displays. |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768-kHz crystal for precise RTC timekeeping; requires 3.7-pF load capacitance per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory space with 125 ns word writes - enables real-time data logging without erase delays or wear leveling. |
| Ultra-low-power RTC | 0.35 µA in LPM3.5 with calendar and alarm - maintains accurate time/date during battery-only operation for billing intervals. |
| Capacitive Touch I/O | All GPIO pins support CSD without external components - reduces BOM cost and PCB area in thermostat front panels. |
| Hardware AES-256 | Dedicated coprocessor with key management - accelerates secure OTA updates and encrypted meter data transmission. |
| Integrated LCD Driver | 112-segment static/2–4 mux support with contrast control - drives custom alphanumeric displays for gas/water meter readouts. |
Applications
| Heat Cost Allocators | Electricity Meters |
|---|---|
Use Scenario: Wireless thermal energy measurement in apartment heating systems with monthly data upload. IC Role / Device Role / Timing Role: Main controller managing temperature differential sampling, FRAM-based hourly log storage, and RTC-triggered BLE wake-up. Use Value: 0.35 µA RTC current enables >12-year CR2032 battery life; FRAM endurance supports 100+ years of 1-hour logging. | Use Scenario: Residential smart electricity meter with tamper detection, tariff switching, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, AES-encrypted data packaging, and I²C sensor interfacing. Use Value: Integrated 12-bit ADC with internal reference eliminates external voltage reference IC; AES-256 secures firmware updates. |
| Thermostats | Portable Medical Devices |
Use Scenario: Battery-powered HVAC controller with touchscreen UI, ambient sensing, and Wi-Fi co-processor interface. IC Role / Device Role / Timing Role: User interface processor managing capacitive touch buttons, LCD display refresh, and sensor polling. Use Value: All-port capacitive touch capability removes external touch controller; 112-segment LCD driver supports multi-language status display. | Use Scenario: Handheld glucose monitor requiring low-power operation, analog biosensor signal conditioning, and secure data export. IC Role / Device Role / Timing Role: Analog front-end controller performing ADC conversion, FRAM-based result storage, and USB/I²C data transfer. Use Value: 12-bit ADC with sample-and-hold ensures accurate blood glucose readings; FRAM enables instant save on measurement completion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6972IPM | No AES-256; identical FRAM, ADC, LCD, and pinout | Suitable where cryptographic security is not required (e.g., basic water meters) | Select when AES is unnecessary and cost reduction is prioritized over firmware security. |
| MSP430FR69721IRGC | Same silicon, VQFN-64 (9 mm × 9 mm) package; no exposed thermal pad requirement | Better suited for space-constrained PCBs where LQFP footprint is prohibitive | Choose for compact industrial sensor nodes needing same functionality in smaller package. |
Compared with MSP430FR6972IPM and MSP430FR69721IRGC, the MSP430FR69721IPM uniquely combines AES-256 security, LQFP mechanical robustness, and full feature parity - making it optimal for certified utility meter designs requiring both physical durability and firmware integrity.
Availability
MSP430FR69721IPM is available at Aetrix Electronics and suitable for utility metering, portable medical instrumentation, and smart thermostat applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430FR69721IPM 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 deep expertise in ultra-low-power microcontrollers and energy-efficient system design.
The MSP430FR69xx product line targets battery-operated sensing and metering applications, integrating FRAM, LCD drivers, RTC, and security peripherals to minimize external components and extend operational lifetime.
FAQ
What is the maximum operating frequency of the MSP430FR69721IPM?
The MSP430FR69721IPM supports a maximum system clock frequency of 16 MHz using its factory-trimmed DCO or external HFXT oscillator. This allows real-time execution of metrology algorithms and communication stack processing while maintaining sub-100 µA/MHz active-mode current efficiency - critical for maintaining battery life in continuous-sampling applications.
Does the MSP430FR69721IPM include hardware AES encryption?
Yes, the MSP430FR69721IPM includes a dedicated 128/256-bit AES security coprocessor, confirmed in the device family datasheet (SLASE23E, Section 1.1). This enables accelerated encryption/decryption of firmware images and meter data without burdening the CPU - a key differentiator from MSP430FR6972IPM and essential for compliance with utility cybersecurity standards.
What LCD segment count does the MSP430FR69721IPM support?
The MSP430FR69721IPM supports up to 112 segments in static, 2-, 3-, or 4-mux configurations via its integrated LCD_C peripheral. This matches the specification for the MSP430FR697x family (Table 3-1) and enables direct drive of multi-digit utility meter displays without external segment drivers - reducing bill-of-materials cost and board space.
Is the MSP430FR69721IPM pin-compatible with other MSP430FR69xx devices?
Yes, the MSP430FR69721IPM in the 64-pin LQFP (PM) package shares identical pinout and electrical characteristics with MSP430FR6972IPM, MSP430FR6970IPM, and MSP430FR68721IPM. This allows hardware reuse across variants differing only in FRAM size (32KB vs. 64KB) or AES inclusion - simplifying design migration and inventory consolidation.
What is the typical current consumption of the MSP430FR69721IPM in RTC-only mode?
The MSP430FR69721IPM consumes 0.35 µA typical in LPM3.5 mode with RTC active and calendar functions enabled, as specified in Section 1.1 of SLASE23E. This ultra-low current - achieved using the 32-kHz crystal oscillator and optimized RTC_C module - enables decade-long operation on coin-cell batteries in applications like heat cost allocators and remote sensors.
MSP430FR69721IPM 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:
- 51
- 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:
MSP430FR69721IPM FAQ
1.How can I place an order for MSP430FR69721IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR69721IPM 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 MSP430FR69721IPM reliable?
The price and inventory of MSP430FR69721IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR69721IPM is usually 5 days.
3.What payment methods are accepted for MSP430FR69721IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR69721IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR69721IPM?
MSP430FR69721IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR69721IPM 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 MSP430FR69721IPM?
For technical support, including MSP430FR69721IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR69721IPM requirements.
6.How does Aetrix verify that MSP430FR69721IPM is sourced from the original manufacturer or authorized distributors?
All MSP430FR69721IPM 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 MSP430FR69721IPM meets industry standards.
7.What is the process for return or replacement of MSP430FR69721IPM?
All MSP430FR69721IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR69721IPM, 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 MSP430FR69721IPM part is unused and in its original packaging.
Return procedure for MSP430FR69721IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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