My Inquiry
My Account
Texas Instruments MSP430FR59721IPM
- Part No.:
- MSP430FR59721IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR59721IPM.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,554
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FR59721IPM from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, AES-256 encryption coprocessor, and integrated 12-bit ADC with 8 external input channels. It operates from 1.8 V to 3.6 V, supports up to 16-MHz DCO clock, and delivers 0.35 µA RTC operation (LPM3.5) - ideal for battery-powered metering and energy-harvested sensor nodes.
For engineers reviewing the MSP430FR59721IPM datasheet, MSP430FR59721IPM pinout, MSP430FR59721IPM application, or MSP430FR59721IPM equivalent, key selection criteria include FRAM endurance (1015 write cycles), real-time clock calendar/alarm support, capacitive touch I/O without external components, and dual eUSCI modules supporting UART/IrDA/SPI/I²C with automatic baud-rate detection.
Technical Context
The MSP430FR59721IPM implements the CPUXV2 16-bit RISC core with 16 general-purpose registers and integrates a flexible clock system with DCO, LFXT (32-kHz crystal), and HFXT (high-frequency crystal) sources. Its low-power architecture includes seven defined modes (LPM0–LPM4.5), with LPM3.5 enabling RTC operation at 0.35 µA using VLO or LFXT.
Peripherals include three 16-bit timers (TA0/TA1/TA3 with capture/compare), one 16-bit Timer_B (TB0) with six capture/compare registers, 32-bit hardware multiplier, three-channel DMA, CRC16/CRC32 engines, and dual eUSCI_A/eUSCI_B modules - each supporting SPI up to 10 Mbps and independent protocol configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC with 16 registers; enables deterministic real-time execution and low-cycle-count interrupt latency. |
| Nonvolatile Memory | 64KB FRAM with 125 ns/word write speed and 1015 write endurance; eliminates flash erase delays and wear leveling overhead. |
| Power Modes | LPM3.5 draws 0.35 µA (typical) with RTC active; LPM4.5 draws 0.04 µA (typical); supports rapid wake-up from any low-power mode via port edge detection. |
| Analog Peripherals | 12-bit ADC12_B with internal reference, sample-and-hold, and up to 8 external analog inputs; supports window comparator and burst conversion modes. |
| Security | Dedicated 256-bit AES encryption/decryption coprocessor; lockable memory segments for IP encapsulation; true random number seed generator. |
| Communication | eUSCI_A0/A1: UART with auto-baud detection, IrDA encode/decode, SPI ≤10 Mbps; eUSCI_B0/B1: I²C with multi-slave addressing, SPI ≤10 Mbps. |
| Timing Accuracy | RTC_A with calendar and alarm functions; clocked by 32-kHz crystal (LFXT) or VLO; supports calibration and temperature compensation. |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch); thermally enhanced with exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / P1.1 / P1.2 / P1.3 | ADC input / VREF+/− / TA0/TA1 timer I/O / capacitive touch channel | Supports simultaneous analog sensing, reference buffering, and timer capture on shared pins; all support Schmitt-trigger and programmable pullup/pulldown. |
| P2.0–P2.3 | eUSCI_A0 TX/RX/CLK/STE / TB0 outputs / RTCCLK | UART BSL interface (P2.0/P2.1) and RTC clock input (P2.2) share pins with Timer_B outputs - requires careful mux configuration during initialization. |
| P3.4–P3.7 | eUSCI_A1 TX/RX/CLK/STE / TB0.0–TB0.3 | Dual-function pins enable independent SPI master/slave operation on eUSCI_A1 while driving Timer_B PWM outputs - no hardware conflict in configured modes. |
| PJ.4 / PJ.5 | LFXIN / LFXOUT | Dedicated 32-kHz crystal oscillator terminals; require external 3.7-pF load capacitance per TI SLASE66C spec; essential for RTC accuracy and LPM3.5 operation. |
| TEST / RST/NMI | SBW debug interface / reset and NMI input | Two-pin Spy-Bi-Wire (SBW) interface enables full debugging and programming; RST/NMI supports both reset assertion and non-maskable interrupt triggering. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory space enabling atomic read-modify-write, zero-wait-state execution, and elimination of flash erase cycles - critical for data logging integrity. |
| Capacitive Touch I/O | All GPIO pins support CSD (Capacitive Sigma-Delta) sensing without external RC networks; enables up to 16-button touch interface with <1 µA standby current per channel. |
| Real-Time Clock (RTC_A) | Calendar mode with year/month/day/hour/minute/second and alarm interrupt; powered independently in LPM3.5 using VLO or LFXT - maintains time across deep sleep. |
| Hardware Accelerators | 32-bit MPY32 multiplier and CRC32 engine offload CPU during math-intensive operations (e.g., sensor fusion, checksum validation), reducing active-mode duration. |
| Low-Power Analog | ADC12_B with internal 1.5V/2.0V/2.5V references and selectable sample rates (up to 200 kSPS); supports burst mode for synchronized multi-channel acquisition with minimal CPU intervention. |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection, pulse counting, and secure firmware updates over PLC or RF link. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, FRAM-based event logging, AES-encrypted OTA updates, and RTC-scheduled wake-ups. Use Value: 64KB FRAM stores 10+ years of hourly consumption logs with 1015 write endurance; LPM3.5 RTC enables precise billing interval timing at 0.35 µA. |
Use Scenario: Wireless environmental sensor (temp/humidity/pressure) powered by solar cell or piezoelectric harvester with intermittent energy availability. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting control, sensor acquisition, FRAM buffering, and low-duty-cycle RF transmission. Use Value: Sub-µA LPM4.5 shutdown extends runtime between harvest events; FRAM retains state across power loss without backup capacitor. |
| Wearable Health Monitor | Industrial Sensor Management |
Use Scenario: ECG/PPG patch with continuous biosignal acquisition, motion artifact correction, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal processor running real-time filtering algorithms, capacitive touch UI, and BLE packet assembly using eUSCI_A0 UART. Use Value: All I/O pins support capacitive touch - enables buttonless UI; 2KB RAM + FRAM allows on-device FFT and feature extraction without external memory. |
Use Scenario: DIN-rail mounted industrial node collecting vibration, temperature, and current data from motors or pumps for predictive maintenance. IC Role / Device Role / Timing Role: Edge intelligence hub performing sensor fusion, anomaly detection, and time-stamped event logging before forwarding to gateway. Use Value: CRC32 engine validates sensor data integrity; AES-256 secures firmware and configuration; 51 GPIOs support diverse analog/digital sensor interfaces. |
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 |
|---|---|---|---|
| MSP430FR5972IPM | Same FRAM size (64KB), same package (LQFP-64), but lacks AES-256 coprocessor and has UART-only BSL (no I²C BSL). | Preferred where cryptographic security is not required and UART-based programming suffices; lower cost for basic metering. | Select when AES acceleration and I²C BSL are unnecessary; verify BSL interface compatibility with existing production programmers. |
| MSP430FR59221IPM | Omits HFXT oscillator and HFXIN/HFXOUT pins; supports only LFXT (32 kHz) and VLO; 46-pin DGG or 64-pin LQFP packages available. | Better suited for cost-sensitive, crystal-constrained designs where high-frequency timing is not needed (e.g., slow-sampling sensors). | Choose when HFXT is unused and board space/cost must be minimized; confirm clock tree meets system timing requirements without HFXT. |
Compared with MSP430FR5972IPM and MSP430FR59221IPM, the MSP430FR59721IPM uniquely combines full HFXT capability, AES-256 acceleration, and I²C BSL - making it optimal for secure, high-accuracy, field-programmable applications requiring both real-time clock precision and cryptographic integrity.
Availability
MSP430FR59721IPM is available at Aetrix Electronics and suitable for smart utility metering, energy-harvested sensor nodes, wearable health monitors, and industrial sensor management requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR59721IPM 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 specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in low-power design.
The MSP430FRxx FRAM microcontroller product line targets ultra-low-power portable and wireless sensing applications - combining FRAM's speed/endurance with seven optimized power modes to maximize battery life in metering, wearables, and industrial IoT.
FAQ
What is the maximum operating frequency of the MSP430FR59721IPM?
The MSP430FR59721IPM supports a maximum system clock frequency of 16 MHz using its factory-trimmed DCO oscillator. It also accepts external high-frequency crystals (HFXT) up to 24 MHz for applications requiring precise timing or higher throughput - though the CPU instruction rate remains capped at 16 MHz per device specification.
Does the MSP430FR59721IPM support hardware-accelerated cryptography?
Yes, the MSP430FR59721IPM includes a dedicated 256-bit AES encryption and decryption coprocessor. This hardware module performs AES-128 and AES-256 operations independently of the CPU, enabling secure firmware updates, encrypted sensor data storage in FRAM, and authenticated communication - all while minimizing active-mode power consumption.
How many I/O pins does the MSP430FR59721IPM provide in the LQFP-64 package?
The MSP430FR59721IPM in the LQFP-64 package provides 51 configurable GPIO pins across ports P1–P9 and PJ. These include dedicated analog inputs for the ADC12_B, capacitive touch channels, timer capture/compare signals, and multiplexed eUSCI peripheral functions - all supporting programmable pullup/pulldown and edge-selectable wake-up from low-power modes.
What crystal specifications are required for the RTC function on the MSP430FR59721IPM?
The RTC_A module on the MSP430FR59721IPM requires a 32.768-kHz tuning-fork crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT). TI specifies a 3.7-pF load capacitance for optimal accuracy and stability. The crystal must meet ±20 ppm frequency tolerance and support operation down to 0.35 µA in LPM3.5 mode.
Is the MSP430FR59721IPM pin-compatible with other devices in the MSP430FR59xx family?
Yes, the MSP430FR59721IPM shares identical pinout and package (LQFP-64) with MSP430FR5972IPM, MSP430FR5970IPM, and MSP430FR59221IPM - enabling drop-in replacement within the same package variant. However, functional differences exist (e.g., AES presence, HFXT support), so firmware and clock configuration must be validated per device.
MSP430FR59721IPM 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, 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:
MSP430FR59721IPM FAQ
1.How can I place an order for MSP430FR59721IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR59721IPM 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 MSP430FR59721IPM reliable?
The price and inventory of MSP430FR59721IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR59721IPM is usually 5 days.
3.What payment methods are accepted for MSP430FR59721IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR59721IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR59721IPM?
MSP430FR59721IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR59721IPM 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 MSP430FR59721IPM?
For technical support, including MSP430FR59721IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR59721IPM requirements.
6.How does Aetrix verify that MSP430FR59721IPM is sourced from the original manufacturer or authorized distributors?
All MSP430FR59721IPM 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 MSP430FR59721IPM meets industry standards.
7.What is the process for return or replacement of MSP430FR59721IPM?
All MSP430FR59721IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR59721IPM, 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 MSP430FR59721IPM part is unused and in its original packaging.
Return procedure for MSP430FR59721IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FR59721IPM Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
