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Texas Instruments MSP430FR5948IDA
- Part No.:
- MSP430FR5948IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5948IDA.pdf
- Description:
- IC MCU 16BIT 48KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
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Product details
Overview
MSP430FR5948IDA from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 48KB nonvolatile memory, 2KB RAM, and integrated peripherals including 12-bit ADC (14 external channels), RTC with calendar/alarm, five 16-bit timers, AES256 encryption, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and metering systems.
For engineers reviewing the MSP430FR5948IDA datasheet, MSP430FR5948IDA pinout, MSP430FR5948IDA application, or MSP430FR5948IDA equivalent, key selection criteria include LFXT-only clock support, TSSOP-38 package, 48KB FRAM endurance (10¹⁵ writes), real-time clock operation at 0.25 µA in LPM3.5, and capacitive touch I/O capability on all pins without external components.
Technical Context
The MSP430FR5948IDA implements the ULP CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its FRAM architecture enables unified memory space for code, data, and storage with 125 ns word write speed and no erase cycles.
It integrates a 12-bit ADC with internal reference and sample-and-hold, 16-channel analog comparator, hardware multiplier (MPY32), 3-channel DMA, and eUSCI_A0/eUSCI_B0 supporting UART, IrDA, SPI, and I²C - all operating under the same low-power clock system centered on DCO and LFXT only (no HFXT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock speed |
| FRAM Capacity | 48 KB nonvolatile memory with 10¹⁵ write endurance and 125 ns/word write time |
| RAM Size | 2 KB SRAM for volatile data and stack operations |
| ADC Resolution | 12-bit SAR ADC with 14 external input channels and internal reference |
| RTC Support | Real-time clock with calendar and alarm functions, enabled only with LFXT crystal |
| Low-Power Modes | LPM3.5 draws 0.25 µA (typical) with RTC active; LPM4.5 draws 0.02 µA (typical) |
| Clock Sources | DCO (10 factory-trimmed frequencies), VLO, and LFXT only - no HFXT support |
| Package Type | TSSOP-38 (12.5 mm × 6.2 mm), leaded, surface-mount compatible |
Pinout & Package
TSSOP-38 package with 38-pin leaded surface-mount footprint, 0.65 mm pitch, and exposed thermal pad not present (unlike QFN variants). Designed for cost-sensitive, space-constrained industrial and portable applications requiring reliable solder joint formation and manual rework compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | RTC clock calibration output, ADC channel A0 input, comparator C0 input, and negative reference voltage source/sink |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | RTC-compatible timer input, ADC channel A1 input, comparator output, and positive reference voltage source/sink |
| P3.0–P3.3/A12–A15/C12–C15 | Analog I/O | Four dedicated ADC inputs (A12–A15) and comparator inputs (C12–C15) with port interrupt and LPM wakeup |
| P1.3/TA1.2/UCB0STE/A3/C3 | Peripheral I/O | eUSCI_B0 SPI slave transmit enable, ADC channel A3 input, and comparator C3 input |
| P1.4/TB0.1/UCA0STE/A4/C4 | Peripheral I/O | eUSCI_A0 SPI slave transmit enable, ADC channel A4 input, and comparator C4 input |
| PJ.4/LFXIN & PJ.5/LFXOUT | Oscillator Interface | Dedicated 32-kHz crystal connections for RTC and low-frequency clock generation - required for LPM3.5 operation |
| RST/NMI/SBWTDIO | Control Terminal | Reset input, non-maskable interrupt, and Spy-Bi-Wire debug interface bidirectional data line |
| TEST/SBWTCK | Debug Terminal | Spy-Bi-Wire test clock input for programming and debugging via single-wire interface |
| DVCC & DVSS | Power Supply | Digital core supply (DVCC) and ground (DVSS) pins - decoupling required per TI layout guidelines |
| AVCC & AVSS | Analog Supply | Analog subsystem supply (AVCC) and ground (AVSS) - isolated from digital rails to minimize noise coupling into ADC |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 48 KB unified memory enabling instant write, zero-erase-cycle firmware updates and data logging without wear leveling |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external RC networks or dedicated hardware |
| Hardware AES256 Engine | Dedicated coprocessor accelerates encryption/decryption for secure firmware updates and sensor data transmission |
| EnergyTrace++ Integration | Real-time current profiling and low-power mode analysis directly in Code Composer Studio for precise power optimization |
| Unified Low-Power Clock System | Single clock domain with DCO, VLO, and LFXT - eliminates clock domain crossing issues and reduces leakage in LPM states |
| 3-Channel DMA Controller | Enables autonomous peripheral-to-memory transfers (e.g., ADC → FRAM) without CPU intervention, reducing active time |
Applications
| Metering | Energy-Harvested Sensor Nodes |
|---|---|
Use Scenario: Smart water/gas meters with tamper detection and long-term data retention. IC Role / Device Role / Timing Role: Primary controller managing pulse counting, LCD display, RF communication, and secure firmware updates. Use Value: 48KB FRAM stores 10+ years of hourly consumption logs with 10¹⁵ write endurance; RTC maintains accurate billing timestamps at 0.25 µA. | Use Scenario: Wireless environmental sensors powered by solar cells or thermoelectric generators. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting control, sensor acquisition, and burst-mode wireless transmission. Use Value: LPM4.5 shutdown current of 0.02 µA extends operational life between harvest events; FRAM retains state across intermittent power loss. |
| Wearable Electronics | Sensor Management |
Use Scenario: Fitness trackers monitoring heart rate, motion, and ambient light with multi-day battery life. IC Role / Device Role / Timing Role: Central MCU handling optical sensor interfacing, motion algorithm execution, and Bluetooth LE packet formatting. Use Value: All-port capacitive touch enables bezel-free UI without added BOM cost; 2KB RAM supports real-time sensor fusion buffers. | Use Scenario: Industrial condition-monitoring nodes collecting vibration, temperature, and humidity data. IC Role / Device Role / Timing Role: Edge intelligence node performing FFT preprocessing, threshold-based alerting, and secure local storage. Use Value: Hardware MPY32 and DMA accelerate FFT computation; AES256 encrypts data before transmission to cloud gateway. |
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 |
|---|---|---|---|
| MSP430FR5949IDA | 64KB FRAM, identical TSSOP-38 package and peripheral set; same LFXT-only clock architecture | Supports longer firmware images and larger data buffers; suitable when >48KB nonvolatile storage is required | Select MSP430FR5949IDA if application requires >48KB program/data storage while retaining identical pinout and power profile |
| MSP430FR5947IDA | 32KB FRAM, 1KB RAM, otherwise identical feature set and TSSOP-38 package | Lower memory capacity reduces cost and power in simpler sensor polling or event-triggered logging tasks | Select MSP430FR5947IDA for cost-optimized designs where 32KB FRAM suffices and memory headroom is not critical |
Compared with MSP430FR5949IDA and MSP430FR5947IDA, the MSP430FR5948IDA delivers optimal balance of memory capacity (48KB FRAM), power efficiency (0.25 µA RTC mode), and peripheral integration for mid-complexity ultra-low-power applications - avoiding over-provisioning or under-specification.
Availability
MSP430FR5948IDA is available at Aetrix Electronics and suitable for metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430FR5948IDA 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, personal electronics, and communications markets.
The MSP430FR59xx family is designed for ultra-low-power sensing and measurement applications, emphasizing FRAM-based data integrity, sub-µA real-time operation, and integrated analog front-end capabilities for direct sensor interfacing.
FAQ
What is the maximum operating frequency of the MSP430FR5948IDA?
The MSP430FR5948IDA supports a maximum system clock frequency of 16 MHz using its digitally controlled oscillator (DCO) with 10 factory-trimmed frequency settings. This allows high-speed computation during active mode while maintaining full compatibility with its ultra-low-power architecture and timing-critical peripherals like the 12-bit ADC and RTC.
Does the MSP430FR5948IDA support high-frequency crystal oscillators (HFXT)?
No, the MSP430FR5948IDA does not support HFXT. It is specifically configured for LFXT-only operation, with dedicated LFXIN and LFXOUT pins for 32-kHz crystals. This design enables ultra-low-power RTC functionality but excludes high-frequency crystal-based timing; HFXT capability is reserved for MSP430FR595x and MSP430FR596x variants.
How many ADC input channels does the MSP430FR5948IDA provide?
The MSP430FR5948IDA provides 14 external analog input channels (A0–A15, excluding A6 and A7) plus two internal reference channels for its 12-bit ADC. Channel mapping is confirmed in the device comparison table and signal description section, and all 14 external inputs are accessible on the TSSOP-38 package pins P1.0–P1.5, P3.0–P3.3, P4.0, P4.1, and P1.6–P1.7.
What debug interface does the MSP430FR5948IDA use?
The MSP430FR5948IDA uses the 2-wire Spy-Bi-Wire (SBW) interface for programming and debugging, accessed via TEST/SBWTCK (pin 19) and RST/NMI/SBWTDIO (pin 20). This interface is fully supported by TI's MSP-FET and compatible IDEs like Code Composer Studio, enabling full flash programming, breakpoint setting, and real-time register inspection without requiring a 4-pin JTAG header.
Is the MSP430FR5948IDA pin-compatible with other devices in the MSP430FR594x family?
Yes, the MSP430FR5948IDA is pin-compatible with MSP430FR5947IDA and MSP430FR5949IDA in the same TSSOP-38 package. All share identical pin assignments, electrical characteristics, and peripheral mappings - enabling drop-in replacement within the same footprint when adjusting FRAM capacity (32KB/48KB/64KB) without PCB redesign.
MSP430FR5948IDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
MSP430FR5948IDA FAQ
1.How can I place an order for MSP430FR5948IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5948IDA 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 MSP430FR5948IDA reliable?
The price and inventory of MSP430FR5948IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5948IDA is usually 5 days.
3.What payment methods are accepted for MSP430FR5948IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5948IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5948IDA?
MSP430FR5948IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5948IDA 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 MSP430FR5948IDA?
For technical support, including MSP430FR5948IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5948IDA requirements.
6.How does Aetrix verify that MSP430FR5948IDA is sourced from the original manufacturer or authorized distributors?
All MSP430FR5948IDA 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 MSP430FR5948IDA meets industry standards.
7.What is the process for return or replacement of MSP430FR5948IDA?
All MSP430FR5948IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5948IDA, 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 MSP430FR5948IDA part is unused and in its original packaging.
Return procedure for MSP430FR5948IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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