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Texas Instruments MSP430F5171IDA
- Part No.:
- MSP430F5171IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430F5171IDA.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
MSP430F5171IDA from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller in 38-pin TSSOP (DA) package, 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), 16-channel comparator, and 5-V-tolerant I/Os. It targets battery-powered sensor systems and digital power supplies requiring sub-1.1 µA standby current and <5 µs wake-up.
For engineers reviewing the MSP430F5171IDA datasheet, MSP430F5171IDA pinout, MSP430F5171IDA application, or MSP430F5171IDA equivalent, key selection criteria include its 38-pin TSSOP footprint, absence of integrated ADC (unlike MSP430F5172IDA), LDO-regulated core voltage control, and support for 32-kHz XT1 and up to 25-MHz high-frequency crystals.
Technical Context
The MSP430F5171IDA implements the MSP430F51x1 family architecture with CPUXV2 core, 40-ns instruction cycle, and five low-power modes (LPM0–LPM4.5). Its unified clock system integrates FLL stabilization, VLO (10 kHz), REFO (32.768 kHz), and dual crystal oscillator support (XT1 LF/HF).
It includes a 3-channel DMA controller, hardware 32-bit multiplier, port mapping controller for flexible peripheral routing, and programmable drive strength (20 mA) on selected I/Os. Unlike the F51x2 variant, it omits the 10-bit ADC10_A module and associated analog input channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 40-ns instruction cycle and constant generators for optimized code efficiency |
| Memory | 32 KB Flash (in-system programmable), 2 KB RAM - sufficient for real-time sensor fusion and protocol stacks |
| Power Consumption | 1.1 µA in LPM3 (3 V, WDT active); 0.9 µA in LPM4 (RAM retention); 0.25 µA in LPM4.5 (shutdown) |
| Timers | Dual 16-bit Timer_D (TD0/TD1) with three capture/compare registers each and high-resolution mode support |
| Communication | USCI_A0 (UART/IrDA/SPI) + USCI_B0 (I²C/SPI); no hardware ADC or internal reference voltage generator |
| I/O Capability | Up to 29 GPIO pins; 12 pins 5-V tolerant with 20-mA drive strength; configurable pullup/pulldown resistors |
| Clock Sources | FLL-controlled DCO, VLO (10 kHz), REFO (32.768 kHz), XT1 (32 kHz or up to 25 MHz), MCLK/SMCLK/ACLK outputs |
Pinout & Package
Package: 38-pin TSSOP (DA), 12.5 mm × 6.2 mm body size, lead pitch 0.65 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.5 | Multi-function digital I/O | Support USCI_A0/USCI_B0 SPI/I²C/UART secondary functions; comparator inputs CB0–CB5 |
| PJ.0–PJ.3 | Multi-function digital I/O | Provide SMCLK/MCLK/ACLK outputs; test interface (TDO/TDI/TMS/TCK); comparator inputs CB6–CB9 |
| P1.6, P1.7, P2.0–P2.3 | Timer_D signal I/O | Default TD0/TD1 CCR0–CCR2 compare/capture pins; configurable via port mapping controller |
| P2.4–P2.7, P3.0–P3.1 | TEC fault/clear I/O | Support timer external clear and fault inputs (TEC0/TEC1); also serve as TD0/TD1 compare outputs |
| RST/NMI/SBWTDIO | Reset & debug interface | Active-low reset with internal pullup; nonmaskable interrupt input; Spy-Bi-Wire data I/O |
| TEST/SBWTCK | Debug clock input | Enables JTAG/Spy-Bi-Wire programming and debugging; selects digital I/O on JTAG pins |
| DVCC/DVSS/DVIO/VCORE/AVCC/AVSS | Power supply terminals | DVCC (digital VDD), DVSS (digital GND), DVIO (5-V-tolerant I/O supply), VCORE (regulated core), AVCC/AVSS (analog supply - unused in F5171 due to no ADC) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-1.1 µA LPM3 current enables multi-year battery life in wireless sensor nodes |
| Flexible clock system | FLL + multiple internal/external sources allow dynamic frequency scaling without external components |
| Reconfigurable peripheral mapping | Port Mapping Controller enables software-defined pin assignment for USCI, Timer_D, and comparator signals |
| 5-V-tolerant I/O | 12 pins tolerate 5-V logic levels while operating at 1.8–3.6 V core, simplifying interface with legacy peripherals |
| Hardware multiplier | 32-bit MPY32 unit accelerates math-intensive tasks like PID control or sensor calibration without CPU overhead |
Applications
| Smart Thermostat Control | Industrial Remote Sensor Node |
|---|---|
|
Use Scenario: Standalone temperature/humidity monitoring with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main controller managing I²C sensors, SPI OLED display, UART-to-LoRa bridge, and low-power sleep/wake scheduling. Use Value: 0.9 µA LPM4 retention extends coin-cell life beyond 5 years; 5-V-tolerant I/O interfaces directly with 5-V sensor buses. |
Use Scenario: Battery-powered vibration/temperature node in factory equipment, transmitting data every 10 minutes. IC Role / Device Role / Timing Role: Real-time scheduler triggering sensor reads, CRC-16 checksum generation, and USCI_B0 I²C acquisition before deep-sleep. Use Value: <5 µs wake-up latency minimizes active time; dual Timer_D modules enable precise timing of sensor sampling and radio duty cycling. |
| Digital Power Supply Monitor | LED Lighting Sequencer |
|
Use Scenario: Secondary-side supervisor in isolated DC-DC converters, monitoring output voltage/current and communicating faults via UART. IC Role / Device Role / Timing Role: Fault-detection engine using comparator_B inputs for overvoltage/overcurrent thresholds; UART reports status to primary controller. Use Value: 16-channel comparator with ultra-low-power mode allows continuous analog monitoring at <1 µA; no ADC required for threshold-based decisions. |
Use Scenario: Architectural LED strip controller with synchronized color transitions and dimming profiles. IC Role / Device Role / Timing Role: PWM waveform generator using Timer_D high-resolution mode to drive RGB LEDs with 16-bit precision and phase alignment. Use Value: Dual Timer_D modules provide independent, synchronized PWM channels for R/G/B without CPU intervention; 20-mA drive supports direct LED sinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5172IDA | Includes 10-bit ADC10_A (9 external + 2 internal channels), VREF+/- pins, and ADC-specific I/O mappings | Required when analog sensing (e.g., thermistor, current sense) is performed on-chip without external ADC | Select MSP430F5172IDA if on-board analog-to-digital conversion is needed; otherwise MSP430F5171IDA reduces BOM cost and layout complexity |
| MSP430F5151IDA | 16 KB Flash, 2 KB RAM, identical peripheral set (no ADC), same 38-pin TSSOP package and pinout | Suitable for firmware-limited applications where 16 KB suffices (e.g., simple UART gateways or basic timers) | Choose MSP430F5151IDA to reduce Flash cost and power in resource-constrained designs; retains full software compatibility |
Compared with MSP430F5172IDA, MSP430F5171IDA saves board space and cost by omitting the ADC subsystem while retaining identical timer, communication, and power features; versus MSP430F5151IDA, it doubles Flash capacity for complex protocol stacks or field-upgradable firmware.
Availability
MSP430F5171IDA is available at Aetrix Electronics and suitable for industrial remote sensor nodes, digital power supply monitors, and LED lighting sequencers requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5171IDA 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 with emphasis on energy efficiency and reliability.
The MSP430F51x1 series was designed for ultra-low-power embedded control in battery-operated measurement and sensing applications, prioritizing rapid wake-up, flexible clocking, and robust I/O interfacing without integrated analog converters.
FAQ
Does MSP430F5171IDA include an integrated analog-to-digital converter (ADC)?
No, MSP430F5171IDA does not include an ADC. It belongs to the MSP430F51x1 family, which omits the ADC10_A module present in the F51x2 variants (e.g., MSP430F5172IDA). Analog sensing must be handled externally or via the 16-channel comparator_B for threshold detection only. This omission reduces die size and cost while maintaining identical timer, communication, and power features.
What is the maximum operating frequency supported by MSP430F5171IDA?
MSP430F5171IDA supports up to 25 MHz via the XT1 high-frequency crystal oscillator mode. The digitally controlled oscillator (DCO) is FLL-stabilized to deliver stable MCLK/SMCLK frequencies across voltage and temperature ranges. Core performance is rated at 180 µA/MHz in active mode, confirming reliable operation at full speed within the 1.8–3.6 V supply range.
Is MSP430F5171IDA pin-compatible with MSP430F5172IDA in the 38-pin TSSOP package?
Yes, MSP430F5171IDA and MSP430F5172IDA share identical pinouts in the 38-pin TSSOP (DA) package. All signal names, power terminals, and I/O positions match exactly. However, pins designated for ADC functions (e.g., A0–A8, VREF+/−) on MSP430F5172IDA are general-purpose I/O or comparator inputs on MSP430F5171IDA - no PCB redesign is needed for substitution, but firmware must exclude ADC usage.
What debug interfaces are supported by MSP430F5171IDA?
MSP430F5171IDA supports Spy-Bi-Wire (SBW) via RST/NMI/SBWTDIO and TEST/SBWTCK pins, enabling full-speed programming and real-time debugging with TI's MSP-FET and compatible tools. JTAG is not available on this device. SBW uses only two wires, reducing debug footprint and preserving I/O resources - ideal for space-constrained designs where minimal test access is required.
Can MSP430F5171IDA operate from a single 1.8 V supply?
Yes, MSP430F5171IDA operates across a 1.8 V to 3.6 V supply range. Its integrated LDO regulates the core voltage (VCORE) independently, ensuring stable CPU and peripheral operation even as DVCC drops to 1.8 V. This enables direct use with lithium-thionyl chloride or alkaline batteries without external regulators, supporting true single-supply ultra-low-power system design.
MSP430F5171IDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430F5xx
- Packaging:
- Bulk
- 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:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5171IDA FAQ
1.How can I place an order for MSP430F5171IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5171IDA 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 MSP430F5171IDA reliable?
The price and inventory of MSP430F5171IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5171IDA is usually 5 days.
3.What payment methods are accepted for MSP430F5171IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5171IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5171IDA?
MSP430F5171IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5171IDA 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 MSP430F5171IDA?
For technical support, including MSP430F5171IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5171IDA requirements.
6.How does Aetrix verify that MSP430F5171IDA is sourced from the original manufacturer or authorized distributors?
All MSP430F5171IDA 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 MSP430F5171IDA meets industry standards.
7.What is the process for return or replacement of MSP430F5171IDA?
All MSP430F5171IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5171IDA, 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 MSP430F5171IDA part is unused and in its original packaging.
Return procedure for MSP430F5171IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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