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Texas Instruments MSP430F5172IDAR
- Part No.:
- MSP430F5172IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430F5172IDAR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,963
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Product details
Overview
MSP430F5172IDAR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 32 KB Flash, 2 KB RAM, dual 16-bit Timer_D modules (TD0/TD1), USCI_A0 (UART/IrDA/SPI) and USCI_B0 (I²C/SPI), 10-bit 200-ksps ADC with 8 external + 2 internal channels, and 16-channel comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and digital power control.
For engineers reviewing the MSP430F5172IDAR datasheet, MSP430F5172IDAR pinout, MSP430F5172IDAR application, or MSP430F5172IDAR equivalent, key selection criteria include its 31 I/O count in TSSOP-38 package, 5-V-tolerant digital I/Os with 20-mA drive strength, LPM4.5 shutdown current of 0.25 µA at 3 V, and integrated hardware multiplier supporting 32-bit operations.
Technical Context
The MSP430F5172IDAR implements a 16-bit RISC CPUXV2 core with constant generators for code efficiency and supports five low-power modes optimized for extended battery life. Its unified clock system integrates FLL stabilization, VLO (10 kHz), REFO (32.768 kHz), and crystal support up to 25 MHz via XT1.
Peripherals include two independent 16-bit Timer_D modules each with three capture/compare registers and high-resolution mode, one 16-bit Timer_A0 with three capture/compare registers, and a 3-channel DMA controller. The device uses a programmable LDO for regulated core voltage and includes supply voltage supervision with brownout detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators; enables efficient C code execution and low-cycle interrupt latency. |
| Flash / RAM | 32 KB Flash / 2 KB RAM; sufficient for complex sensor fusion algorithms and firmware updates in field-deployed devices. |
| ADC Resolution & Speed | 10-bit, 200 kSPS with autoscan; supports simultaneous sampling across 8 external analog inputs (e.g., temperature, voltage, current). |
| Low-Power Modes | LPM4.5 draws 0.25 µA at 3 V; enables multi-year operation on coin-cell batteries in always-on monitoring applications. |
| Digital I/O | 31 GPIO pins, 5-V tolerant, up to 20-mA drive strength; eliminates level-shifting components when interfacing with legacy industrial sensors or logic. |
| Timer Resources | Two Timer_D (TD0/TD1) + Timer_A0, each with 3 capture/compare registers; enables precise PWM generation, input capture for motor commutation, and time-stamped event logging. |
| Communication Interfaces | USCI_A0 (UART/IrDA/SPI) + USCI_B0 (I²C/SPI); provides dual-protocol flexibility for sensor hub communication and host MCU coordination. |
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 |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Nonmaskable Interrupt / Spy-Bi-Wire I/O | Active-low reset with internal pullup; supports in-system programming and debug without external programmer hardware. |
| P1.0–P1.5, P1.7, P2.0–P2.7, P3.0–P3.7, PJ.0–PJ.6 | General-purpose I/O with reconfigurable secondary functions | 31 total GPIOs; each supports peripheral mapping (e.g., UART TX/RX, I²C SDA/SCL, ADC inputs, Timer capture/compare) via Port Mapping Controller. |
| DVIO | 5-V-tolerant I/O power supply | Enables direct connection to 5-V logic or sensors without external level shifters; decoupled from DVCC for noise isolation. |
| VCORE | Regulated core voltage output | Internally generated 1.8-V supply for CPU and peripherals; programmable via PMM register for dynamic power optimization. |
| XIN / XOUT | Crystal oscillator input/output | Supports 32.768-kHz watch crystal (low-frequency mode) or up to 25-MHz high-frequency crystal (XT1) for precision timing. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware multiplier (MPY32) | Completes 32-bit multiply in single cycle; accelerates FFT, PID, and cryptographic operations without software overhead. |
| 3-channel DMA | Enables zero-CPU-overhead data movement between ADC, USCI, and memory; critical for real-time sensor streaming at 200 kSPS. |
| Ultra-low-power comparator (COMP_B) | 16-channel comparator with ultra-low-power mode; detects threshold crossings (e.g., overvoltage, zero-crossing) while consuming <100 nA. |
| Flexible clock system | FLL + VLO + REFO + XT1 support; allows seamless switching between accuracy (crystal) and ultra-low-power (VLO) clocks during wake/sleep cycles. |
| 5-V-tolerant I/Os | 31 pins tolerate 5-V signals at DVIO = 1.8–3.6 V; simplifies interface to industrial sensors, displays, and legacy microcontrollers. |
Applications
| Analog Sensor Hub | Digital Power Monitor |
|---|---|
Use Scenario: Simultaneous acquisition of temperature, humidity, and ambient light in a wireless environmental node. IC Role / Device Role / Timing Role: Central sensor aggregator with ADC autoscan, USCI_B0 I²C master for sensor readout, and LPM3 sleep between 10-s measurements. Use Value: 1.1 µA standby current extends CR2032 battery life beyond 5 years; 10-bit ADC resolution meets ±0.5°C thermal accuracy requirements. | Use Scenario: Real-time voltage/current monitoring and protection in a 12-V DC-DC converter. IC Role / Device Role / Timing Role: Dedicated power supervisor using COMP_B for overcurrent detection, TA0 for PWM timing sync, and USCI_A0 UART for fault reporting. Use Value: Sub-5-µs wake-from-LPM3 enables immediate response to transient overloads; 20-mA I/O drive directly controls external MOSFET gate drivers. |
| LED Lighting Controller | Thermostat Interface |
Use Scenario: Multi-zone dimming control with color mixing and thermal derating in commercial LED fixtures. IC Role / Device Role / Timing Role: PWM generator (TD0/TD1) for RGB channel control, ADC for heatsink temperature feedback, and USCI_B0 I²C slave for DALI bus interface. Use Value: High-resolution Timer_D mode achieves 0.1% dimming granularity; 32 KB Flash accommodates lighting profiles and OTA update stack. | Use Scenario: Battery-powered HVAC wall thermostat with touch sensing, display, and wireless connectivity. IC Role / Device Role / Timing Role: System controller managing capacitive touch (P1.x), segment LCD (PJ.x), temperature ADC, and SPI interface to sub-GHz RF transceiver. Use Value: 0.25 µA LPM4.5 shutdown current ensures >10-year shelf life; 5-V-tolerant I/Os interface directly to legacy HVAC control wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5152IDAR | 16 KB Flash, 2 KB RAM, identical peripherals and pinout | Reduced program storage limits firmware complexity; suitable for cost-sensitive, fixed-function designs | Select when application firmware fits within 16 KB and no future feature expansion is required. |
| MSP430F5132IDAR | 8 KB Flash, 1 KB RAM, same peripheral set but fewer I/Os (29 vs. 31) | Targeted at minimal-feature embedded controllers where ADC channels and timer instances are unused | Choose for ultra-low-cost implementations with constrained memory and simplified I/O routing. |
Compared with MSP430F5152IDAR and MSP430F5132IDAR, the MSP430F5172IDAR provides 2× more Flash than the F5152 and 4× more than the F5132-enabling robust bootloader, secure firmware updates, and advanced sensor processing-while maintaining identical low-power performance and TSSOP-38 footprint.
Availability
MSP430F5172IDAR is available at Aetrix Electronics and suitable for analog sensor systems, digital power supplies, and LED lighting applications requiring stable component supply and long-term industrial availability.
Supply support for MSP430F5172IDAR 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 MSP430F51x2 product line delivers ultra-low-power mixed-signal MCUs optimized for battery-operated measurement and control applications-including sensor nodes, portable instrumentation, and energy-harvesting systems-where nanowatt-level sleep current and fast wake-up are critical.
FAQ
What is the maximum operating frequency of the MSP430F5172IDAR?
The MSP430F5172IDAR supports a maximum MCLK frequency of 25 MHz when using the high-frequency crystal oscillator (XT1). Internal DCO operation is calibrated to achieve stable frequencies up to 25 MHz, and the FLL loop maintains accuracy across voltage and temperature variations. This enables deterministic real-time control at sub-microsecond timing resolution.
Does the MSP430F5172IDAR support in-system programming without external voltage?
Yes, the MSP430F5172IDAR supports serial onboard programming via Spy-Bi-Wire (SBW) using only the RST/NMI/SBWTDIO and TEST/SBWTCK pins. No external programming voltage is required-the device derives programming power from DVCC, enabling field firmware updates through a two-wire interface compatible with standard TI debuggers.
How many ADC input channels does the MSP430F5172IDAR support?
The MSP430F5172IDAR supports up to 8 external analog input channels (A0–A5, plus two additional pins configurable as ADC inputs) and 2 internal channels (temperature sensor and reference voltage). This configuration is exclusive to the MSP430F51x2 family and confirmed in the device comparison table and signal descriptions for the MSP430F5172IDAR.
What is the purpose of the DVIO pin on the MSP430F5172IDAR?
The DVIO pin on the MSP430F5172IDAR supplies power to the 5-V-tolerant I/O buffer circuitry. When DVIO is connected to 3.3 V or 5 V, the corresponding GPIO pins (P1.0–P1.5, P1.7, P2.0–P2.7, P3.0–P3.7, PJ.0–PJ.6) accept input signals up to 5 V while DVCC remains at 1.8–3.6 V-enabling direct interface with 5-V sensors, logic, or displays without external level shifters.
Can the MSP430F5172IDAR operate from a single 1.8-V supply?
Yes, the MSP430F5172IDAR operates across a supply range of 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including 25-MHz MCLK operation (with appropriate DCO calibration), ADC conversion, and peripheral operation. The integrated LDO regulates VCORE to 1.8 V, ensuring stable core voltage even as DVCC varies within specification.
MSP430F5172IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 29
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5172IDAR FAQ
1.How can I place an order for MSP430F5172IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5172IDAR 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 MSP430F5172IDAR reliable?
The price and inventory of MSP430F5172IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5172IDAR is usually 5 days.
3.What payment methods are accepted for MSP430F5172IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5172IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5172IDAR?
MSP430F5172IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5172IDAR 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 MSP430F5172IDAR?
For technical support, including MSP430F5172IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5172IDAR requirements.
6.How does Aetrix verify that MSP430F5172IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430F5172IDAR 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 MSP430F5172IDAR meets industry standards.
7.What is the process for return or replacement of MSP430F5172IDAR?
All MSP430F5172IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5172IDAR, 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 MSP430F5172IDAR part is unused and in its original packaging.
Return procedure for MSP430F5172IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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