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Texas Instruments MSP430FR5958IDAR
- Part No.:
- MSP430FR5958IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5958IDAR.pdf
- Description:
- IC MCU 16BIT 48KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,373
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Product details
Overview
MSP430FR5958IDAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 48KB nonvolatile memory, 2KB RAM, 12-bit ADC (14 external channels), RTC with calendar/alarm, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering systems.
For engineers reviewing the MSP430FR5958IDAR datasheet, MSP430FR5958IDAR pinout, MSP430FR5958IDAR application, or MSP430FR5958IDAR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 current (0.25 µA typical), HFXT oscillator support, 40-pin TSSOP package, and AES256 security coprocessor integration.
Technical Context
The MSP430FR5958IDAR implements the CPUXV2 16-bit RISC core with 16 MHz max clock, paired with a flexible clock system including DCO, HFXT (up to 24 MHz), and LFXIN/LFXOUT pins omitted - confirming HFXT-only operation per family documentation. Its memory architecture unifies FRAM for code, data, and storage, eliminating separate flash/EEPROM partitions.
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 16-channel analog comparator, and eUSCI_A0/A1 (UART/IrDA/SPI) plus eUSCI_B0 (I²C/SPI). The device supports hardware UART and I²C bootloaders and features capacitive touch I/O on all pins without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz - enables deterministic real-time control with low cycle count per instruction. |
| FRAM Capacity | 48 KB - provides unified, fast-write (125 ns/word), radiation-resistant nonvolatile memory for firmware + logging + configuration. |
| ADC Resolution | 12-bit with 14 external input channels - supports precision sensor interfacing with internal reference and sample-and-hold. |
| Low-Power Mode LPM3.5 | 0.25 µA typical - enables real-time clock operation with calendar/alarm while preserving full register state and FRAM contents. |
| Supply Voltage Range | 1.8 V to 3.6 V - accommodates coin-cell (e.g., CR2032) and regulated industrial supplies without level-shifting. |
| Crypto Engine | AES-256 coprocessor - accelerates secure firmware updates and encrypted data storage in resource-constrained edge devices. |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) - enables concurrent wired communication with sensors, displays, and host controllers. |
Pinout & Package
Package: TSSOP-38 (38-pin Thin Shrink Small Outline Package), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm, exposed thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/A0/C0/VREF-/VeREF- | Multi-function I/O | ADC channel A0 input, timer capture/compare, DMA trigger, and negative reference output - enables simultaneous analog sensing and timing-critical event handling. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | ADC channel A1 input, timer clock source, comparator output, and positive reference output - supports ratiometric measurements and synchronized peripheral triggering. |
| PJ.6/HFXIN | Oscillator Input | High-frequency crystal input (up to 24 MHz) - required for precise timing in communication protocols and high-speed sampling. |
| PJ.7/HFXOUT | Oscillator Output | Crystal oscillator output - connects to external crystal; unused if using internal DCO or LFXT. |
| RST/NMI/SBWTDIO | Reset & Debug | Active-low reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire debug I/O - enables single-wire programming and in-system debugging. |
| AVCC / AVSS / DVCC / DVSS | Power Supply | Separate analog/digital power domains - reduces noise coupling into ADC and improves measurement accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 48 KB unified memory with 10¹⁵ write endurance and 125 ns write speed - eliminates erase cycles and enables true EEPROM-like logging without wear leveling. |
| Ultra-Low-Power Operation | LPM3.5 at 0.25 µA with RTC active - extends battery life to years in intermittent-sensing applications like smart meters and environmental monitors. |
| Capacitive Touch I/O | All GPIO pins support CSD (Capacitive Sensing Delta) without external components - reduces BOM cost and PCB area for user interface integration. |
| Hardware Security | Dedicated AES-256 coprocessor and random number seed generator - offloads encryption tasks from CPU and enables FIPS-compliant secure boot and OTA updates. |
| Flexible Clock System | Factory-trimmed DCO (10 frequencies), HFXT support, and VLO - allows dynamic clock scaling and fail-safe operation across voltage and temperature ranges. |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Nodes |
|---|---|
Use Scenario: Two-way communication and tamper detection in electricity/water/gas meters with decade-long battery life. IC Role / Device Role / Timing Role: Primary controller managing metrology ADC, RTC-based billing intervals, secure firmware updates, and RF/PLC communication stacks. Use Value: FRAM enables reliable daily consumption logging without write fatigue; LPM3.5 sustains RTC and wake-up logic at sub-µA current. | Use Scenario: Autonomous environmental monitoring (temperature, humidity, light) powered by solar cells or thermoelectric generators. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting PMIC interface, sensor polling, data compression, and low-duty-cycle wireless transmission. Use Value: Unified FRAM simplifies data buffering during intermittent power; AES-256 secures sensor payloads before transmission. |
| Wearable Health Monitors | Industrial Data Loggers |
Use Scenario: Continuous biopotential (ECG/EMG) acquisition and motion sensing in compact, skin-contact devices. IC Role / Device Role / Timing Role: Analog front-end controller with 12-bit ADC oversampling, real-time motion-triggered sampling, and on-device feature extraction. Use Value: All-GPIO capacitive touch enables gesture UI; low-voltage operation (1.8 V) extends coin-cell life beyond 6 months. | Use Scenario: Standalone vibration, temperature, and pressure logging in factory equipment with no network connectivity. IC Role / Device Role / Timing Role: Autonomous logger capturing timestamped sensor data to FRAM, performing CRC integrity checks, and initiating USB/UART dump upon retrieval. Use Value: 48 KB FRAM stores >100,000 timestamped samples; 10¹⁵ write cycles ensure >20-year field reliability without degradation. |
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 |
|---|---|---|---|
| MSP430FR5959IRHA | 64 KB FRAM, 40-pin VQFN (6 mm × 6 mm), same HFXT support and peripheral set. | Higher memory capacity suits firmware-over-the-air and extended data buffering; QFN requires reflow assembly. | Select when >48 KB nonvolatile storage is needed and board space allows VQFN layout. |
| MSP430FR5948IRHA | 48 KB FRAM, 40-pin VQFN, LFXT-only (no HFXIN/HFXOUT pins), 12 external ADC channels. | Optimized for crystal-limited timing (e.g., RTC-only); lacks HFXT for high-speed comms or sampling. | Select only for cost-sensitive, RTC-centric designs where HFXT is unnecessary and QFN is acceptable. |
Compared with MSP430FR5959IRHA, the MSP430FR5958IDAR offers identical peripheral functionality but 16 KB less FRAM and TSSOP packaging for through-hole or legacy rework compatibility; versus MSP430FR5948IRHA, it adds HFXT capability enabling higher ADC sampling rates and faster UART bauds, at the cost of requiring an external high-frequency crystal.
Availability
MSP430FR5958IDAR is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable electronics requiring stable component supply and long-term production continuity.
Supply support for MSP430FR5958IDAR 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 for industrial, automotive, and consumer markets.
The MSP430FR59xx product line delivers ultra-low-power mixed-signal microcontrollers with integrated FRAM for energy-constrained IoT endpoints, sensor hubs, and battery-operated measurement systems.
FAQ
What is the maximum operating frequency of the MSP430FR5958IDAR?
The MSP430FR5958IDAR supports a maximum system clock frequency of 16 MHz, achievable via the high-frequency crystal oscillator (HFXT) or factory-trimmed DCO. This frequency enables real-time signal processing, high-speed UART communication (up to 1 Mbps), and rapid ADC sampling without compromising ultra-low-power operation in active mode (≈100 µA/MHz).
Does the MSP430FR5958IDAR include a real-time clock (RTC) module?
Yes, the MSP430FR5958IDAR includes the RTC_B module with calendar and alarm functions. However, it requires connection to an external 32-kHz crystal via LFXIN/LFXOUT pins - which are not present on this HFXT-only variant. Therefore, the RTC_B module is not functional on the MSP430FR5958IDAR; only LPM3.5 standby with VLO clock is supported.
How many analog input channels does the MSP430FR5958IDAR ADC support?
The MSP430FR5958IDAR integrates the ADC12_B module with support for 14 external analog input channels (A0–A15, excluding A6 and A7) and 2 internal channels (temperature sensor and VREF). This configuration enables simultaneous monitoring of multiple sensors - such as current shunts, thermistors, and voltage dividers - within a single ultra-low-power device.
What debug interface does the MSP430FR5958IDAR use?
The MSP430FR5958IDAR uses the two-wire Spy-Bi-Wire (SBW) interface via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This interface supports full JTAG-style debugging, flash programming, and real-time memory inspection using TI's MSP-FET and Code Composer Studio, with minimal PCB footprint compared to 4-wire JTAG.
Is the MSP430FR5958IDAR pin-compatible with other devices in the MSP430FR59xx family?
No, the MSP430FR5958IDAR is not pin-compatible with other MSP430FR59xx variants. It uses a 38-pin TSSOP (DA) package with HFXT-specific pinout (PJ.6/HFXIN, PJ.7/HFXOUT), whereas MSP430FR596x devices use 48-pin VQFN and MSP430FR594x variants use LFXT-optimized 40-pin VQFN or 38-pin TSSOP layouts. PCB design must match the DA package footprint and signal mapping.
MSP430FR5958IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- 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:
- 31
- Program Memory Size:
- 48KB (48K 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5958IDAR FAQ
1.How can I place an order for MSP430FR5958IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5958IDAR 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 MSP430FR5958IDAR reliable?
The price and inventory of MSP430FR5958IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5958IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5958IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5958IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5958IDAR?
MSP430FR5958IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5958IDAR 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 MSP430FR5958IDAR?
For technical support, including MSP430FR5958IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5958IDAR requirements.
6.How does Aetrix verify that MSP430FR5958IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5958IDAR 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 MSP430FR5958IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5958IDAR?
All MSP430FR5958IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5958IDAR, 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 MSP430FR5958IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5958IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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