My Inquiry
My Account
Texas Instruments MSP430FR5949IDA
- Part No.:
- MSP430FR5949IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5949IDA.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:120
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FR5949IDA from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 14 external channels, RTC with calendar/alarm, and dual eUSCI modules (UART/I²C/SPI). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring long-term data retention and sub-µA standby current.
For engineers reviewing the MSP430FR5949IDA datasheet, MSP430FR5949IDA pinout, MSP430FR5949IDA application, or MSP430FR5949IDA equivalent, key selection factors include its TSSOP-38 package, LFXT-only clock system (no HFXT), RTC_B support with 32-kHz crystal, 0.25 µA LPM3.5 current, and capacitive touch I/O capability across all pins without external components.
Technical Context
The MSP430FR5949IDA implements the CPUXV2 core with 16 registers and integrates a flexible clock system limited to DCO and LFXT (32-kHz crystal only)-HFXT is absent per device family specification. Its RTC_B module requires LFXIN/LFXOUT connection and enables calendar-based wake-up in LPM3.5 mode.
Peripherals include two eUSCI_A modules (UART/IrDA/SPI) and one eUSCI_B (I²C/SPI), five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 16-channel analog comparator, and AES256 encryption coprocessor-all operating within the same ultra-low-power architecture that achieves 100 µA/MHz active current and 0.02 µA shutdown (LPM4.5).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC, up to 16 MHz clock speed for deterministic real-time control |
| Nonvolatile Memory | 64KB FRAM with 10¹⁵ write endurance, enabling frequent logging without wear-out concerns |
| RAM | 2KB SRAM for fast variable storage and stack operations during active execution |
| ADC | 12-bit SAR ADC with 14 external input channels and internal reference for precision sensor interfacing |
| RTC | Real-Time Clock with calendar, alarm, and 0.25 µA typical current in LPM3.5-enables time-stamped low-power wake-up |
| Supply Voltage | 1.8 V to 3.6 V operation, compatible with single-cell Li-ion, Li-SOCl₂, or dual alkaline batteries |
| Ultra-Low-Power Modes | LPM3.5 (0.25 µA), LPM4.5 (0.02 µA); supports years of operation on coin-cell batteries |
Pinout & Package
TSSOP-38 package (12.5 mm × 6.2 mm), thermally enhanced for industrial ambient operation; pin-compatible with other MSP430FR594x DA variants but distinct from RHA and RGZ packages.
| 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-supports timekeeping + analog sensing on one pin |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | Positive reference output, ADC A1 input, comparator output, and timer clock source-enables self-calibrated analog front-end |
| P1.4/TB0.1/UCA0STE/A4/C4 | Multi-function I/O | eUSCI_A0 SPI slave transmit enable, ADC A4 input, and comparator C4-allows simultaneous serial comms and sensor monitoring |
| PJ.4/LFXIN & PJ.5/LFXOUT | Oscillator terminals | Dedicated 32-kHz crystal interface for RTC_B; required for calendar functionality and LPM3.5 operation |
| RST/NMI/SBWTDIO | Reset/debug I/O | Unified reset, non-maskable interrupt, and Spy-Bi-Wire debug I/O-enables in-system programming with minimal footprint |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory space supporting simultaneous code execution, data read/write, and nonvolatile storage-eliminates flash erase delays and wear leveling |
| Capacitive Touch I/O | All 31 GPIO pins support capacitive touch sensing without external RC networks-reduces BOM cost and PCB area for HMI interfaces |
| Hardware AES256 | Dedicated encryption/decryption coprocessor offloads CPU and secures firmware updates or sensor data at line rate |
| EnergyTrace++™ Support | Real-time current profiling and low-power mode analysis via integrated debug interface-accelerates ultra-low-power firmware optimization |
| 32-bit Hardware Multiplier | Single-cycle 32×32 multiply enables fast DSP operations (e.g., FIR filtering, RMS calculation) in energy-constrained environments |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water meter with pulse counting, temperature compensation, and hourly consumption logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based log buffer, and maintaining accurate time via RTC_B with 32-kHz crystal. Use Value: 64KB FRAM enables decade-long hourly logs without wear degradation; 0.25 µA LPM3.5 extends battery life beyond 10 years. | Use Scenario: Solar-powered environmental sensor node measuring temperature, humidity, and light intensity every 5 minutes. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting PMIC, ADC sampling, FRAM data buffering, and scheduled BLE wakeup via RTC_B alarm. Use Value: Unified FRAM eliminates separate EEPROM/flash, reducing component count; sub-µA sleep modes maximize harvestable energy utilization. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Chest-strap ECG monitor with motion artifact correction and local RR-interval storage. IC Role / Device Role / Timing Role: Signal acquisition controller using ADC and analog comparator for analog front-end conditioning, with capacitive touch for user interface. Use Value: All-GPIO capacitive touch enables buttonless design; FRAM allows rapid waveform snapshot storage without flash latency. | Use Scenario: DIN-rail mounted logger capturing vibration, temperature, and voltage waveforms in factory equipment. IC Role / Device Role / Timing Role: Standalone data acquisition unit with timestamped FRAM storage, UART host interface, and watchdog-triggered recovery. Use Value: 10¹⁵ FRAM write cycles ensure >20-year reliability under continuous 100 Hz sampling; AES256 secures logged operational data. |
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 |
|---|---|---|---|
| MSP430FR5948IDA | 48KB FRAM, same TSSOP-38 package, identical peripheral set except reduced FRAM size | Suitable where firmware footprint and data logging depth are constrained to ≤48KB | Select when BOM cost reduction is prioritized and 16KB FRAM headroom is acceptable |
| MSP430FR5947IDA | 32KB FRAM, 1KB RAM, same TSSOP-38 package and LFXT-only clock architecture | Targeted at simpler sensor endpoints with minimal firmware and short-term buffering needs | Choose for lowest-cost entry point in FRAM-based designs with <32KB total memory requirement |
Compared with MSP430FR5948IDA and MSP430FR5947IDA, the MSP430FR5949IDA provides maximum FRAM capacity (64KB) and RAM (2KB) in the TSSOP-38 footprint-critical for complex firmware, extended data logging, or dual-application partitioning without external memory.
Availability
MSP430FR5949IDA is available at Aetrix Electronics and suitable for smart metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply and long-term industrial availability.
Supply support for MSP430FR5949IDA 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 built around ferroelectric RAM, targeting battery-operated sensing, metering, and IoT edge devices where energy efficiency and nonvolatile reliability are critical.
FAQ
What is the maximum operating frequency of the MSP430FR5949IDA?
The MSP430FR5949IDA supports a maximum system clock frequency of 16 MHz, achieved via its factory-trimmed DCO oscillator. This enables deterministic real-time performance for time-critical tasks such as metrology sampling or PWM generation while maintaining ultra-low-power operation across all seven low-power modes.
Does the MSP430FR5949IDA support high-frequency crystal oscillation (HFXT)?
No, the MSP430FR5949IDA does not support HFXT. As confirmed in the device comparison table and functional block diagram notes, it belongs to the MSP430FR594x series which is LFXT-only-featuring dedicated LFXIN/LFXOUT pins for 32-kHz crystal connection but omitting HFXIN/HFXOUT terminals entirely.
How many I/O pins does the MSP430FR5949IDA provide in its TSSOP-38 package?
The MSP430FR5949IDA provides 31 general-purpose I/O pins in its TSSOP-38 package. Pins 1–31 are assigned to port functions (P1.x, P2.x, P3.x, P4.x, PJ.x), while pins 32–38 are power (DVCC, DVSS, AVCC, AVSS) and debug/reset (RST/NMI/SBWTDIO, TEST/SBWTCK).
Can the MSP430FR5949IDA operate from a 1.8-V supply?
Yes, the MSP430FR5949IDA supports operation down to 1.8 V, as specified in the recommended operating conditions. However, minimum supply voltage is constrained by SVS (supply voltage supervisor) thresholds; full functionality-including FRAM writes and ADC operation-is guaranteed across the full 1.8 V to 3.6 V range.
What communication interfaces are integrated into the MSP430FR5949IDA?
The MSP430FR5949IDA integrates two eUSCI_A modules (supporting UART, IrDA, and SPI) and one eUSCI_B module (supporting I²C and SPI). These enable concurrent serial communication-for example, UART for host telemetry and I²C for sensor hub interfacing-without external bridge ICs.
MSP430FR5949IDA 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:
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5949IDA FAQ
1.How can I place an order for MSP430FR5949IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5949IDA 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 MSP430FR5949IDA reliable?
The price and inventory of MSP430FR5949IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5949IDA is usually 5 days.
3.What payment methods are accepted for MSP430FR5949IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5949IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5949IDA?
MSP430FR5949IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5949IDA 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 MSP430FR5949IDA?
For technical support, including MSP430FR5949IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5949IDA requirements.
6.How does Aetrix verify that MSP430FR5949IDA is sourced from the original manufacturer or authorized distributors?
All MSP430FR5949IDA 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 MSP430FR5949IDA meets industry standards.
7.What is the process for return or replacement of MSP430FR5949IDA?
All MSP430FR5949IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5949IDA, 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 MSP430FR5949IDA part is unused and in its original packaging.
Return procedure for MSP430FR5949IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FR5949IDA 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…
