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Texas Instruments MSP430FR59721IPMR
- Part No.:
- MSP430FR59721IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR59721IPMR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,353
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Product details
Overview
MSP430FR59721IPMR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, AES-256 encryption coprocessor, and real-time clock (RTC) with calendar mode. It operates from 1.8 V to 3.6 V and supports seven low-power modes-including LPM3.5 (0.35 µA typical) and LPM4.5 (0.04 µA)-targeting battery-powered sensor nodes and metering applications.
For engineers reviewing the MSP430FR59721IPMR datasheet, MSP430FR59721IPMR pinout, MSP430FR59721IPMR application, or MSP430FR59721IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), integrated capacitive touch I/O, dual eUSCI_A/B modules supporting UART/IrDA/SPI/I²C, and hardware CRC16/CRC32 for data integrity in energy-harvested systems.
Technical Context
The MSP430FR59721IPMR implements the CPUXV2 16-bit RISC core with 16 registers and executes instructions at up to 16 MHz using DCO, HFXT, or LFXT clock sources. Its memory subsystem integrates unified 64KB FRAM (program/data/storage), 2KB SRAM, and 26B Tiny RAM-enabling atomic writes and eliminating erase cycles.
Peripherals include five 16-bit timers (TA0–TA3, TB0), three-channel DMA, RTC_A with alarm/calendar, analog comparator (up to 16 inputs), and dual eUSCI modules: eUSCI_A0/A1 support UART with auto-baud detection and IrDA; eUSCI_B0/B1 support I²C with multi-slave addressing and SPI up to 10 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC with 16 registers; enables deterministic timing and low-cycle-count interrupt latency for real-time sensing. |
| FRAM Capacity | 64KB unified nonvolatile memory; supports byte-level writes, 125 ns/word speed, and 10¹⁵ write endurance-eliminates flash wear-out in frequent logging. |
| ADC Resolution | 12-bit SAR ADC with internal reference and sample-and-hold; supports up to 8 external analog inputs for precision sensor interfacing. |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.04 µA typical-extends battery life in multi-year deployments. |
| Crypto Engine | AES-256 security coprocessor with true random number seed; accelerates secure firmware updates and encrypted data storage without CPU overhead. |
| eUSCI Interfaces | Two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (I²C/SPI) modules; enables concurrent wired communication with sensors, displays, and host controllers. |
| Capacitive Touch | All I/O pins support CTSIO without external components; allows direct integration of touch buttons/sliders in wearable or industrial HMI designs. |
Pinout & Package
LQFP-64 package (10 mm × 10 mm), thermally enhanced with exposed pad (not electrically connected); compatible with standard PCB reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / P1.1 / P1.2 / P1.3 | Analog input (A0–A3), RTCCLK, DMAE0, VREF± | Supports simultaneous ADC sampling, real-time clock synchronization, and programmable voltage reference for sensor signal conditioning. |
| P2.0 / P2.1 / P2.2 / P2.3 | UCA0TXD/RXD/CLK/STE, TB0OUTH/CLK, RTCCLK | Configurable UART interface with automatic baud-rate detection and RTC clock output for time-stamped sensor data transmission. |
| P3.4–P3.7 / P5.4–P5.7 | UCA1TXD/RXD/CLK/STE, TB0.0–TB0.3 | Dedicated second UART channel with full hardware flow control and timer-B capture/compare for pulse-width modulation or event timing. |
| PJ.4 / PJ.5 | LFXIN / LFXOUT | Connects to 32.768-kHz crystal for precise RTC operation and low-power sleep mode timing-critical for calendar-based wake-up scheduling. |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, Spy-Bi-Wire debug I/O | Single-pin 2-wire debug interface enables in-system programming and real-time power profiling without dedicated JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory with 125 ns write speed and 10¹⁵ endurance-enables reliable data logging at sub-millisecond intervals without wear leveling. |
| Hardware AES-256 | Dedicated crypto engine offloads encryption/decryption from CPU, reducing active time and power consumption during secure OTA updates. |
| Capacitive Touch I/O | All 51 GPIO pins support CTSIO with built-in charge-transfer circuitry-eliminates external RC networks and reduces BOM cost for touch-enabled interfaces. |
| Real-Time Clock (RTC_A) | Calendar mode with alarm, battery-backed operation, and LPM3.5 current of 0.35 µA-provides accurate timekeeping for scheduled sensor sampling and wake-up events. |
| Three-Channel DMA | Enables autonomous peripheral-to-memory transfers (e.g., ADC → FRAM) without CPU intervention-reduces active-mode duration by up to 40% in data-acquisition loops. |
Applications
| Smart Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, time-of-use billing, and wireless reporting. IC Role / Device Role / Timing Role: Primary controller managing metrology ADC, RTC calendar, secure firmware updates, and LPWAN modem interface. Use Value: FRAM ensures reliable long-term energy consumption logging; AES-256 secures billing data; LPM4.5 extends battery life beyond 10 years. |
Use Scenario: Wireless environmental monitor powered by solar cell or thermal harvester with intermittent operation. IC Role / Device Role / Timing Role: System-on-chip handling sensor acquisition, data compression, RTC-triggered wake-up, and BLE/LoRa transmission. Use Value: 0.04 µA shutdown current minimizes quiescent drain; FRAM withstands infinite write cycles from harvested-energy fluctuations; capacitive touch enables maintenance-free UI. |
| Wearable Health Monitor | Industrial Sensor Management |
Use Scenario: Compact ECG/PPG patch collecting biometric data continuously over days, with local analytics and Bluetooth sync. IC Role / Device Role / Timing Role: Signal processor running FIR filters on ADC data, managing motion-compensated sampling via TA0/TA1 timers, and driving OLED via SPI. Use Value: Unified FRAM simplifies firmware/data co-location; 12-bit ADC resolution captures subtle physiological waveforms; LPM3.5 enables always-on RTC for activity tracking. |
Use Scenario: DIN-rail mounted vibration/temperature/humidity node in factory automation with Modbus RTU or CAN FD gateway functionality. IC Role / Device Role / Timing Role: Edge intelligence hub aggregating sensor data, performing CRC32 validation, and forwarding via eUSCI_B I²C to isolated RS-485 transceiver. Use Value: Hardware CRC32 ensures data integrity across noisy industrial buses; 51 GPIO support multi-sensor parallel readout; AES-256 secures configuration updates over Modbus TCP. |
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 |
|---|---|---|---|
| MSP430FR5972IPMR | No AES-256 coprocessor; identical FRAM, ADC, timers, and pinout. | Suitable where cryptographic operations are handled externally or omitted entirely. | Select when security requirements are minimal and cost sensitivity is high-same footprint and firmware compatibility. |
| MSP430FR59221IPMR | Omits HFXT oscillator; supports only LFXT (32 kHz) and DCO; same FRAM, AES, and peripherals. | Optimized for strictly low-frequency timing applications without high-speed crystal needs. | Choose for pure RTC-centric designs (e.g., calendar clocks, slow-sampling loggers) where HFXT-related BOM and layout complexity must be avoided. |
Compared with MSP430FR5972IPMR, the MSP430FR59721IPMR adds hardware AES-256 for secure firmware/data-critical for certified metering-while MSP430FR59221IPMR removes HFXT to reduce component count and EMI risk in ultra-low-frequency sensor hubs.
Availability
MSP430FR59721IPMR is available at Aetrix Electronics and suitable for smart metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR59721IPMR 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 90 years of innovation in low-power design and mixed-signal integration.
The MSP430FRxx family targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility, intelligent peripherals, and deep-sleep optimization to extend battery life in portable and wireless systems.
FAQ
What is the maximum operating frequency of the MSP430FR59721IPMR?
The MSP430FR59721IPMR supports a maximum system clock frequency of 16 MHz using its factory-trimmed DCO or external HFXT crystal. This enables high-throughput data processing while maintaining ultra-low active-mode current of approximately 100 µA/MHz-ideal for burst-mode sensor applications where computation must complete quickly before returning to LPM3.
Does the MSP430FR59721IPMR support capacitive touch sensing on all GPIO pins?
Yes, the MSP430FR59721IPMR supports capacitive touch sensing on all 51 general-purpose I/O pins without external components. Its integrated CTSIO module uses charge-transfer measurement, enabling robust button, slider, and proximity detection-even through plastic or glass overlays-making it ideal for sealed wearable and industrial HMI designs.
How does the FRAM memory in the MSP430FR59721IPMR differ from traditional flash in terms of endurance and write speed?
The MSP430FR59721IPMR's 64KB FRAM offers 10¹⁵ write cycles-orders of magnitude higher than flash-and performs writes at 125 ns per word (64KB in 4 ms) with no erase step. Unlike flash, FRAM supports true byte-level writes and retains data without power, making it ideal for high-frequency data logging in battery-constrained environments.
What low-power modes are available on the MSP430FR59721IPMR, and what is the current draw in RTC-active mode?
The MSP430FR59721IPMR offers seven low-power modes, including LPM3.5 where the RTC remains active while CPU and most peripherals are disabled. In this mode, typical current consumption is 0.35 µA-enabling decade-long operation on a single coin-cell battery while maintaining precise calendar-based wake-up scheduling for periodic sensor reads.
Is the MSP430FR59721IPMR pin-compatible with other devices in the MSP430FR59xx family?
Yes, the MSP430FR59721IPMR in the LQFP-64 (PM) package shares identical pinout and electrical characteristics with MSP430FR5972IPMR, MSP430FR5970IPMR, and MSP430FR59221IPMR-enabling hardware reuse across variants. Firmware portability is further ensured by identical memory maps and peripheral register layouts within the FR59xx family.
MSP430FR59721IPMR 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, 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:
MSP430FR59721IPMR FAQ
1.How can I place an order for MSP430FR59721IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR59721IPMR 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 MSP430FR59721IPMR reliable?
The price and inventory of MSP430FR59721IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR59721IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR59721IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR59721IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR59721IPMR?
MSP430FR59721IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR59721IPMR 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 MSP430FR59721IPMR?
For technical support, including MSP430FR59721IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR59721IPMR requirements.
6.How does Aetrix verify that MSP430FR59721IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR59721IPMR 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 MSP430FR59721IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR59721IPMR?
All MSP430FR59721IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR59721IPMR, 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 MSP430FR59721IPMR part is unused and in its original packaging.
Return procedure for MSP430FR59721IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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