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Texas Instruments MSP430F147IRTDR
- Part No.:
- MSP430F147IRTDR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F147IRTDR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,223
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Product details
Overview
MSP430F147IRTDR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB+256B flash, 1KB RAM, dual 16-bit timers (Timer_A3 and Timer_B7), two USARTs (UART/SPI), 12-bit ADC with 8 channels and internal reference, and on-chip comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable instrumentation.
For engineers reviewing the MSP430F147IRTDR datasheet, MSP430F147IRTDR pinout, MSP430F147IRTDR application, or MSP430F147IRTDR equivalent, this page delivers verified functional specifications, package-confirmed pin roles, real-world use cases in industrial sensing and handheld meters, and validated alternative options for design continuity.
Technical Context
The MSP430F147IRTDR implements a 16-bit CPU with constant generators and hardware multiplier, enabling high code efficiency in ultra-low-power embedded control. Its five power-saving modes-including LPM3 with sub-µA standby current and <6 µs wake-up-optimize energy use in intermittent-sampling applications.
It integrates two independent 16-bit timers: Timer_A3 with three capture/compare registers supporting PWM and input capture, and Timer_B7 with seven capture/compare registers plus shadow registers for glitch-free updates. The 12-bit ADC supports autoscan across eight analog inputs with <10 µs conversion time and selectable internal or external reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and hardware multiplier |
| Flash / RAM | 32KB + 256B flash memory, 1KB RAM - sufficient for complex sensor firmware with data buffering |
| ADC | 12-bit, 8-channel, <10 µs conversion time - enables fast multi-sensor acquisition in handheld meters |
| Timers | Timer_A3 (3 CC regs), Timer_B7 (7 CC regs + shadow) - supports simultaneous PWM generation and event timing |
| Communication | Two USARTs (UART/SPI) - allows concurrent serial comms with host MCU and peripheral sensors |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, coin-cell, or regulated 3.3 V rails |
| Low-Power Modes | Five modes; Standby: 1.6 µA, Off (RAM retention): 0.1 µA - extends battery life in always-on monitoring |
Pinout & Package
Package: VQFN-64 (9 mm × 9 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage (positive) | Primary digital power rail; requires local 100 nF decoupling |
| DVSS (Pin 63) | Digital ground | Reference for all digital I/O and core logic; connects to QFN thermal pad |
| AVCC (Pin 64) | Analog supply voltage (positive) | Separate analog rail for ADC and comparator; must be filtered independently |
| AVSS (Pin 62) | Analog ground | Isolated analog return path; star-connected to minimize noise coupling into ADC |
| RST/NMI (Pin 58) | Reset / non-maskable interrupt | Active-low reset with integrated POR; also serves as NMI input for critical fault handling |
| TCK (Pin 57), TMS (Pin 56), TDI/TCLK (Pin 55), TDO/TDI (Pin 54) | JTAG debug interface | Enables full-speed in-circuit debugging and flash programming without external voltage |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.7, P6.0–P6.7 | 48 GPIO with peripheral multiplexing | Each port supports interrupt-on-change; P6.0–P6.7 are dedicated ADC inputs A0–A7 |
| XIN/XOUT (Pins 8/9), XT2IN/XT2OUT (Pins 53/52) | Crystal oscillator inputs/outputs | Supports LFXT1 (32.768 kHz watch crystal) and HFXT2 (up to 8 MHz standard crystal) |
| URXD0/UTXD0 (Pins 33/32), URXD1/UTXD1 (Pins 35/34) | USART0/USART1 UART channels | Enables dual asynchronous serial links - e.g., one for sensor telemetry, one for host diagnostics |
| ADC12CLK (Pin 26) | ADC conversion clock input | Allows synchronous sampling triggered by timer or external source for precise timing control |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Standby mode draws only 1.6 µA; enables >1-year battery life in periodic-sensing nodes |
| Integrated 12-bit ADC with autoscan | Simultaneously samples up to 8 analog sensors without CPU intervention, reducing active time |
| Dual 16-bit timers with shadow registers | Timer_B7's shadow registers prevent output glitches during PWM duty-cycle updates in motor control |
| Two configurable USARTs | Each supports UART or SPI - eliminates need for external level shifters or protocol bridges |
| On-chip comparator with programmable hysteresis | Replaces external comparators in threshold-detection circuits (e.g., battery low-voltage alert) |
| Bootloader (BSL) with UART interface | Enables field firmware updates over existing serial link - no JTAG programmer required |
Applications
| Industrial Sensor Node | Handheld Multimeter |
|---|---|
Use Scenario: Remote temperature/humidity/pressure monitoring in factory environments with LoRaWAN backhaul. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC acquisition, data preprocessing, and wireless module handshaking. Use Value: Sub-µA LPM3 current extends deployment interval; dual USARTs handle sensor interface and radio comms concurrently. |
Use Scenario: Portable multimeter measuring AC/DC voltage, current, resistance, and capacitance with auto-ranging and LCD display. IC Role / Device Role / Timing Role: Main MCU executing measurement algorithms, driving 4-digit LCD, and managing button input and auto-power-off. Use Value: 12-bit ADC with internal reference ensures stable accuracy across battery discharge; hardware multiplier accelerates RMS calculations. |
| Smart Utility Meter | Portable Gas Detector |
Use Scenario: Battery-powered water/gas meter with pulse counting, temperature compensation, and RF mesh reporting. IC Role / Device Role / Timing Role: Low-power system manager coordinating metrology IC interface, RTC, EEPROM logging, and sub-GHz transceiver. Use Value: Wake-up from LPM3 in <6 µs enables precise timestamping of flow pulses; 32KB flash stores firmware + calibration tables. |
Use Scenario: Personal safety device detecting CO, H2S, or combustible gases with audible/visual alarms and data logging. IC Role / Device Role / Timing Role: Real-time gas concentration processor using analog front-end conditioning and alarm decision logic. Use Value: On-chip comparator monitors electrochemical sensor output thresholds; 1KB RAM buffers 72 hours of sampled data before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F149IRTDR | 60KB flash, 2KB RAM, same peripherals and pinout - higher memory headroom for future firmware expansion | Preferred where firmware complexity or data logging depth exceeds MSP430F147IRTDR capacity | Select when long-term feature scalability is prioritized over BOM cost optimization |
| MSP430F148IRTDR | 48KB flash, 2KB RAM, identical timer/ADC/USART configuration - balanced memory and cost | Suitable for mid-complexity designs requiring more RAM than MSP430F147IRTDR but less flash than MSP430F149IRTDR | Choose for cost-sensitive industrial controls where 1KB RAM is insufficient for buffer-intensive tasks |
Compared with MSP430F147IRTDR, MSP430F149IRTDR offers 28KB more flash for advanced algorithms or OTA updates, while MSP430F148IRTDR provides double the RAM for larger sensor buffers - both retain identical peripheral sets and VQFN-64 footprint for drop-in compatibility in layout-constrained designs.
Availability
MSP430F147IRTDR is available at Aetrix Electronics and suitable for industrial sensor nodes, handheld test equipment, and smart utility meters requiring stable component supply and long-term production support.
Supply support for MSP430F147IRTDR 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 specializing in analog, embedded processing, and connectivity technologies with decades of MCU innovation.
The MSP430F14x family was designed for ultra-low-power sensing and measurement applications, emphasizing extended battery life, integrated analog peripherals, and robust operation in harsh industrial environments.
FAQ
What is the maximum operating frequency of the MSP430F147IRTDR?
The MSP430F147IRTDR does not have a fixed maximum clock frequency specified as a standalone parameter. Its digitally controlled oscillator (DCO) supports frequencies up to approximately 8 MHz under typical conditions, and it can drive the SMCLK or MCLK at that rate. External crystals (XT2) up to 8 MHz are supported, and the DCO can be calibrated to match system requirements. Actual performance depends on supply voltage and temperature per the datasheet's DCO frequency characterization.
Does the MSP430F147IRTDR support in-system programming without external hardware?
Yes, the MSP430F147IRTDR includes a built-in bootloader (BSL) accessible via UART using the existing USART0 pins. No external programming voltage or JTAG adapter is required - firmware updates can be performed in the field using only the device's serial interface and a simple host script, preserving board space and reducing service complexity.
How many analog input channels does the MSP430F147IRTDR ADC support?
The MSP430F147IRTDR features a 12-bit ADC12 module with eight dedicated analog input channels (A0–A7), mapped directly to P6.0 through P6.7. All eight channels are accessible simultaneously in autoscan mode, enabling rapid sequential sampling without software reconfiguration between conversions.
Is the MSP430F147IRTDR pin-compatible with other devices in the MSP430F14x family?
Yes, the MSP430F147IRTDR in the VQFN-64 (RTD) package shares identical pin numbering, signal mapping, and electrical characteristics with MSP430F148IRTDR and MSP430F149IRTDR in the same RTD package. This allows direct substitution in existing layouts when higher memory or RAM is needed, provided firmware accommodates the increased resources.
What are the key power-management features of the MSP430F147IRTDR?
The MSP430F147IRTDR offers five low-power modes (LPM0–LPM4), including LPM3 (standby) drawing just 1.6 µA and LPM4 (RAM retention only) at 0.1 µA. Wake-up from LPM3 to active mode occurs in under 6 µs, enabling rapid response to interrupts while minimizing average current. These features make it ideal for duty-cycled sensor applications where CPU activity is brief and infrequent.
MSP430F147IRTDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F147IRTDR FAQ
1.How can I place an order for MSP430F147IRTDR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F147IRTDR 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 MSP430F147IRTDR reliable?
The price and inventory of MSP430F147IRTDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F147IRTDR is usually 5 days.
3.What payment methods are accepted for MSP430F147IRTDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F147IRTDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F147IRTDR?
MSP430F147IRTDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F147IRTDR 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 MSP430F147IRTDR?
For technical support, including MSP430F147IRTDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F147IRTDR requirements.
6.How does Aetrix verify that MSP430F147IRTDR is sourced from the original manufacturer or authorized distributors?
All MSP430F147IRTDR 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 MSP430F147IRTDR meets industry standards.
7.What is the process for return or replacement of MSP430F147IRTDR?
All MSP430F147IRTDR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F147IRTDR, 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 MSP430F147IRTDR part is unused and in its original packaging.
Return procedure for MSP430F147IRTDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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