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Texas Instruments MSP430FR5847IDA
- Part No.:
- MSP430FR5847IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5847IDA.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,261
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Product details
Overview
MSP430FR5847IDA from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller in a 38-pin TSSOP package, featuring 32KB FRAM, 1KB 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 and data loggers.
For engineers reviewing the MSP430FR5847IDA datasheet, MSP430FR5847IDA pinout, MSP430FR5847IDA application, or MSP430FR5847IDA equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 current (0.25 µA typical), RTC support with LFXT, capacitive touch I/O capability, and UART/I²C bootloader compatibility.
Technical Context
The MSP430FR5847IDA implements the MSP430 CPUXV2 core with 16 registers and integrates a flexible clock system including DCO, VLO, and LFXT (32 kHz crystal) - but excludes HFXT. Its RTC_B module requires LFXT and is active only in LPM3.5 mode, enabling calendar-based wake-up at sub-µA power.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one 16-bit Timer_B (7 registers), 3-channel DMA, 16-channel analog comparator, and eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI), with hardware BSL supporting UART or I²C programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock speed for deterministic real-time control |
| Nonvolatile Memory | 32 KB ferroelectric RAM (FRAM) - enables instant write, 10¹⁵ endurance, no erase before write |
| RAM Size | 1 KB SRAM for fast variable storage and stack operations |
| ADC Resolution | 12-bit SAR ADC with internal reference, 14 external input channels, sample-and-hold |
| RTC Support | Real-time clock with calendar, alarm, and LPM3.5 operation (0.25 µA typical) using LFXT |
| Supply Voltage | 1.8 V to 3.6 V - supports direct connection to single-cell Li-ion or two-cell alkaline batteries |
| Low-Power Mode LPM4.5 | 0.02 µA shutdown current - preserves state while minimizing battery drain during extended sleep |
Pinout & Package
Package: 38-pin TSSOP (DA), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm, RoHS-compliant.
| 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, comparator C0, negative reference source/sink |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | RTC-compatible clock input, ADC channel A1, comparator output, positive reference source/sink |
| P3.0–P3.3/A12–A15/C12–C15 | Analog I/O | Four dedicated ADC inputs (A12–A15) and comparator inputs (C12–C15) |
| PJ.4/LFXIN & PJ.5/LFXOUT | Oscillator Interface | Dedicated 32-kHz crystal connections for RTC_B and low-frequency timing |
| P2.0/UCA0TXD & P2.1/UCA0RXD | UART Interface | Hardware UART pins for BSL programming and host communication (default UART BSL) |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory space enabling simultaneous code execution and data logging without wear leveling |
| Capacitive Touch I/O | All GPIO pins support CTSI-based touch sensing - eliminates external RC networks and reduces BOM cost |
| Ultra-Low-Power RTC | 0.25 µA LPM3.5 current with calendar/alarm - enables years of operation on coin-cell batteries |
| Hardware Bootloader (BSL) | UART-based BSL on P2.0/P2.1 - allows field firmware updates without JTAG debugger |
| 3-Channel DMA | Offloads CPU during ADC conversions, UART transfers, or FRAM writes - extends battery life in burst-mode sensing |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Gas/water meter with pulse counting, temperature compensation, and daily consumption logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based data logs, and maintaining accurate time via RTC_B. Use Value: 32 KB FRAM stores 30+ days of hourly readings; 0.25 µA RTC current enables >10-year battery life with CR2032. | Use Scenario: Wireless environmental sensor node powered by solar cell + supercapacitor, measuring temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting, sensor acquisition, and BLE wakeup scheduling via RTC alarm. Use Value: LPM4.5 (0.02 µA) minimizes dark-period drain; FRAM withstands infinite write cycles from intermittent energy sources. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wrist-worn device capturing ECG waveforms and motion data, syncing to smartphone via UART. IC Role / Device Role / Timing Role: Signal acquisition controller with 12-bit ADC sampling, capacitive touch UI, and precise timestamping. Use Value: All-GPIO capacitive touch eliminates overlay components; FRAM enables lossless waveform buffering during sync gaps. | Use Scenario: DIN-rail mounted logger recording voltage/current/temperature in factory equipment over 6 months. IC Role / Device Role / Timing Role: Standalone data aggregator with RTC-triggered sampling, FRAM-based circular buffer, and UART diagnostics port. Use Value: 10¹⁵ FRAM write cycles ensure reliability across decades of maintenance cycles; -40°C to 85°C rating suits industrial environments. |
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 |
|---|---|---|---|
| MSP430FR58471IDA | I²C-capable eUSCI_B0 BSL vs. UART-only BSL; identical FRAM/RAM/peripherals/clock system | Suitable where I²C master interface is required for sensor hub integration or secondary communication | Select MSP430FR58471IDA when I²C BSL or I²C peripheral use is mandatory; otherwise MSP430FR5847IDA offers UART simplicity. |
| MSP430FR5848IDA | 48 KB FRAM, 2 KB RAM, same package and pinout - no functional or electrical incompatibility | Better suited for applications needing larger firmware image or extended data buffers without layout change | Choose MSP430FR5848IDA if future firmware growth or larger runtime data structures are anticipated; pin-compatible upgrade path. |
Compared with MSP430FR58471IDA and MSP430FR5848IDA, the MSP430FR5847IDA provides optimal balance of FRAM capacity, ultra-low-power RTC operation, and UART BSL simplicity for cost-sensitive, long-life sensor applications - without requiring PCB redesign.
Availability
MSP430FR5847IDA is available at Aetrix Electronics and suitable for smart metering, energy-harvesting sensor nodes, and wearable electronics requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR5847IDA 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 MSP430FR58xx family delivers ultra-low-power mixed-signal microcontrollers with integrated FRAM for energy-constrained sensing, metering, and data logging applications - emphasizing battery longevity and write-intensive reliability.
FAQ
What is the maximum operating frequency of the MSP430FR5847IDA?
The MSP430FR5847IDA supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO), which is factory-trimmed across 10 selectable frequencies. This enables deterministic real-time execution for time-critical tasks such as ADC sampling control or UART baud generation without external high-frequency crystals.
Does the MSP430FR5847IDA support hardware real-time clock functionality?
Yes, the MSP430FR5847IDA includes the RTC_B module, which operates in LPM3.5 mode with a typical current draw of 0.25 µA. It requires connection of a 32-kHz crystal to PJ.4/LFXIN and PJ.5/LFXOUT and supports calendar, alarm, and calibration functions - critical for time-stamped data logging in battery-powered systems.
What communication interfaces are available on the MSP430FR5847IDA?
The MSP430FR5847IDA integrates eUSCI_A0 (supporting UART, IrDA, SPI), eUSCI_A1 (UART, SPI), and eUSCI_B0 (I²C, SPI). Its default hardware bootloader uses UART on P2.0 (TX) and P2.1 (RX); I²C BSL is not supported - that function is reserved for the MSP430FR58471IDA variant.
Can the MSP430FR5847IDA perform capacitive touch sensing without external components?
Yes, all GPIO pins on the MSP430FR5847IDA support capacitive touch sensing via the integrated CapTIvate™-compatible CTSI module. No external resistors or capacitors are needed - enabling robust, low-cost touch buttons, sliders, or wheels directly on the MCU, reducing BOM count and PCB area.
What is the FRAM endurance specification for the MSP430FR5847IDA?
The MSP430FR5847IDA features 32 KB of ferroelectric RAM with 10¹⁵ write cycle endurance - effectively unlimited for all practical embedded applications. Unlike flash, FRAM writes are instant, require no erase, consume minimal energy (125 ns per word), and tolerate frequent updates from sensors or logging routines without degradation.
MSP430FR5847IDA 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:
- 32KB (32K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
MSP430FR5847IDA FAQ
1.How can I place an order for MSP430FR5847IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5847IDA 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 MSP430FR5847IDA reliable?
The price and inventory of MSP430FR5847IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5847IDA is usually 5 days.
3.What payment methods are accepted for MSP430FR5847IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5847IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5847IDA?
MSP430FR5847IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5847IDA 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 MSP430FR5847IDA?
For technical support, including MSP430FR5847IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5847IDA requirements.
6.How does Aetrix verify that MSP430FR5847IDA is sourced from the original manufacturer or authorized distributors?
All MSP430FR5847IDA 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 MSP430FR5847IDA meets industry standards.
7.What is the process for return or replacement of MSP430FR5847IDA?
All MSP430FR5847IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5847IDA, 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 MSP430FR5847IDA part is unused and in its original packaging.
Return procedure for MSP430FR5847IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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