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Texas Instruments MSP430FR5959IRHAR
- Part No.:
- MSP430FR5959IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5959IRHAR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,362
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Product details
Overview
MSP430FR5959IRHAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, and integrated peripherals including ADC12_B (14 external + 2 internal channels), RTC_B, AES256 encryption, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering applications.
For engineers reviewing the MSP430FR5959IRHAR datasheet, MSP430FR5959IRHAR pinout, MSP430FR5959IRHAR application, or MSP430FR5959IRHAR equivalent, key selection criteria include HFXT oscillator support (not LFXT), 40-pin VQFN package, real-time clock capability with crystal interface, FRAM endurance (10¹⁵ writes), and UART/I²C bootloader compatibility.
Technical Context
The MSP430FR5959IRHAR implements the CPUXV2 16-bit RISC core with up to 16 MHz operation, paired with a flexible clock system featuring DCO, HFXT (high-frequency crystal), and VLO. Its low-power architecture supports seven LPMs, including LPM3.5 (RTC active, 0.25 µA typical) and LPM4.5 (shutdown, 0.02 µA typical).
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 32-bit hardware multiplier, CRC16 engine, and capacitive touch I/O on all pins. The device integrates eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0 (I²C/SPI), with BSL supporting UART or I²C bootloading depending on variant configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz clock speed for deterministic real-time control |
| FRAM Capacity | 64 KB unified nonvolatile memory enabling simultaneous read/write without erase cycles |
| RAM Size | 2 KB SRAM for fast data buffering and stack operations |
| ADC Resolution | 12-bit SAR ADC with 14 external + 2 internal analog inputs and integrated reference |
| Low-Power Modes | LPM3.5 (0.25 µA typ.) enables RTC calendar/alarm operation; LPM4.5 (0.02 µA typ.) provides deep shutdown |
| Oscillator Support | HFXT only - requires external high-frequency crystal (e.g., 4–24 MHz); no LFXT/LFXIN-LFXOUT pins |
| Security Engine | AES256 coprocessor accelerates encryption/decryption for secure firmware updates and data storage |
Pinout & Package
VQFN-40 package (6 mm × 6 mm) with exposed thermal pad recommended to be connected to DVSS. Pin count and signal mapping match the MSP430FR595x family's HFXT-only variant layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | RTC calibration output, ADC channel A0 input, comparator C0, and negative reference source/sink |
| PJ.6/HFXIN | Crystal Input | Primary high-frequency crystal oscillator input (4–24 MHz); required for HFXT operation |
| PJ.7/HFXOUT | Crystal Output | High-frequency crystal oscillator output; completes HFXT resonant circuit |
| P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK | Multi-function I/O | UART transmit, SPI master out, timer clock source, and ACLK output for system timing distribution |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset with NMI capability and bidirectional Spy-Bi-Wire debug interface |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory space with 125 ns write time per word and 10¹⁵ write-cycle endurance |
| Real-Time Clock (RTC_B) | Calendar mode with alarm, interrupt, and battery-backed operation in LPM3.5 at 0.25 µA |
| Capacitive Touch I/O | All GPIO pins support capacitive sensing without external components, reducing BOM cost and board area |
| Hardware Security | Dedicated AES256 coprocessor offloads encryption tasks, preserving CPU bandwidth for application logic |
| EnergyTrace++ Support | Real-time current profiling and low-power mode analysis directly in Code Composer Studio |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meters requiring decade-long field operation and periodic data logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based data storage, and driving RTC-triggered wakeups for scheduled reads. Use Value: Ultra-low standby current (0.25 µA in LPM3.5) extends battery life; FRAM enables reliable timestamped logging without wear-out concerns. | Use Scenario: Self-powered environmental sensors harvesting energy from light, vibration, or thermal gradients. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor conditioning, ADC sampling, encrypted data packaging, and burst-mode RF transmission. Use Value: Fast FRAM writes (4 ms for full 64 KB) minimize active time; AES256 secures telemetry before transmission. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wearable devices measuring heart rate, motion, or temperature with multi-day battery runtime. IC Role / Device Role / Timing Role: Central MCU acquiring biometric signals via ADC and comparator, performing local preprocessing, and storing results in FRAM. Use Value: Capacitive touch I/O enables intuitive buttonless UI; unified memory simplifies firmware design for dynamic buffer allocation. | Use Scenario: Ruggedized field loggers capturing voltage, current, or temperature at fixed intervals over months. IC Role / Device Role / Timing Role: Autonomous data acquisition unit using RTC alarms to initiate sampling, store results in FRAM, and manage power states. Use Value: Radiation-resistant FRAM ensures data integrity in industrial environments; 10¹⁵ write cycles eliminate lifetime logging limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5969IRGZR | 64KB FRAM, 2KB RAM, 48-pin VQFN, supports both HFXT and LFXT oscillators | Enables RTC operation with 32-kHz crystal; larger package accommodates more I/O and routing flexibility | Select when dual-crystal support or additional GPIOs are required; not pin-compatible with MSP430FR5959IRHAR |
| MSP430FR5958IRHAR | 48KB FRAM, 2KB RAM, identical 40-pin VQFN package and HFXT-only oscillator configuration | Reduced memory footprint suits simpler firmware with smaller code/data requirements | Drop-in replacement for memory-constrained designs; same pinout, same HFXT dependency |
Compared with MSP430FR5969IRGZR, the MSP430FR5959IRHAR trades LFXT support and package size for compactness and cost; compared with MSP430FR5958IRHAR, it delivers 16KB more FRAM for extended data logging without changing PCB layout.
Availability
MSP430FR5959IRHAR is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor nodes, and wearable electronics requiring stable component supply across long production lifecycles.
Supply support for MSP430FR5959IRHAR 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The MSP430FR59xx product line delivers ultra-low-power mixed-signal MCUs with integrated FRAM for energy-harvesting, battery-constrained, and high-reliability data logging applications.
FAQ
What oscillator options does the MSP430FR5959IRHAR support?
The MSP430FR5959IRHAR supports only the HFXT (high-frequency crystal oscillator) and does not include LFXT circuitry. Its PJ.6/HFXIN and PJ.7/HFXOUT pins are dedicated to external crystals in the 4–24 MHz range. This distinguishes it from MSP430FR594x variants that support 32-kHz LFXT for RTC operation. The MSP430FR5959IRHAR uses the RTC_B module with HFXT-derived clocks.
Does the MSP430FR5959IRHAR include hardware AES encryption?
Yes, the MSP430FR5959IRHAR integrates a dedicated AES256 security coprocessor that performs encryption and decryption independently of the CPU. This enables secure firmware updates, protected data storage in FRAM, and authenticated communication - all while minimizing CPU overhead. The MSP430FR5959IRHAR also provides a random number seed generator to support cryptographic key derivation.
How many ADC input channels does the MSP430FR5959IRHAR provide?
The MSP430FR5959IRHAR features the ADC12_B module with 14 external analog input channels (A0–A15, excluding A6 and A7) plus 2 internal channels (temperature sensor and reference voltage). This matches the specification for MSP430FR595x devices in Table 3-1. The ADC supports programmable sample-and-hold, internal reference, and configurable resolution up to 12 bits.
Is the MSP430FR5959IRHAR pin-compatible with other MSP430FR59xx devices in the 40-pin VQFN package?
The MSP430FR5959IRHAR shares the same 40-pin RHA package footprint and pin mapping with MSP430FR5958IRHAR and MSP430FR5957IRHAR. However, it is not pin-compatible with MSP430FR594x devices (e.g., MSP430FR5949IRHA), which route LFXIN/LFXOUT instead of HFXIN/HFXOUT. Always verify oscillator pin assignments before substitution.
What low-power modes are available on the MSP430FR5959IRHAR and their typical currents?
The MSP430FR5959IRHAR supports seven low-power modes. Key examples include Active Mode (~100 µA/MHz), LPM3 with VLO (0.4 µA typical), LPM3.5 with RTC_B active (0.25 µA typical), and LPM4.5 shutdown (0.02 µA typical). These values are measured under specified conditions in the SLAS704G datasheet and enable multi-year battery life in intermittent-sensing applications.
MSP430FR5959IRHAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-VFQFN Exposed Pad
- 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:
- 33
- 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 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5959IRHAR FAQ
1.How can I place an order for MSP430FR5959IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5959IRHAR 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 MSP430FR5959IRHAR reliable?
The price and inventory of MSP430FR5959IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5959IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5959IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5959IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5959IRHAR?
MSP430FR5959IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5959IRHAR 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 MSP430FR5959IRHAR?
For technical support, including MSP430FR5959IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5959IRHAR requirements.
6.How does Aetrix verify that MSP430FR5959IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5959IRHAR 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 MSP430FR5959IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5959IRHAR?
All MSP430FR5959IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5959IRHAR, 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 MSP430FR5959IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5959IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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