My Inquiry
My Account
Texas Instruments MSP430F5171IRSBR
- Part No.:
- MSP430F5171IRSBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MSP430F5171IRSBR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,220
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F5171IRSBR 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), 16-channel comparator, and 5-V-tolerant I/Os in a 40-pin WQFN package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring sub-µA standby current and fast wake-up.
For engineers reviewing the MSP430F5171IRSBR datasheet, MSP430F5171IRSBR pinout, MSP430F5171IRSBR application, or MSP430F5171IRSBR equivalent, key selection criteria include LPM3 current (1.1 µA @ 3 V), 5-V-tolerant I/O drive strength (20 mA), TD0/TD1 high-resolution timing capability, absence of integrated ADC (unlike MSP430F5172), and QFN-40 (RSB) package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430F5171IRSBR belongs to the MSP430F51x1 family and shares core architecture with the F51x2 series-including CPUXV2, 3-channel DMA, programmable LDO, unified clock system (FLL + VLO + REFO + XT1), and port mapping controller-but excludes the 10-bit ADC10_A module present in F51x2 variants. Its peripheral set is functionally identical to MSP430F5172IRSBR except for ADC omission.
It supports full-speed operation up to 25 MHz via external crystal (XT1), features two independent 16-bit Timer_D modules each with three capture/compare registers and high-resolution mode, and delivers deterministic <5 µs wake-up from LPM3 using the low-frequency internal oscillator (VLO) or 32-kHz crystal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 40-ns instruction cycle; enables efficient C code execution and deterministic real-time control. |
| Memory | 32 KB Flash / 2 KB RAM; sufficient for firmware with complex sensor fusion or communication stacks without external memory. |
| Low-Power Modes | LPM3 (1.1 µA @ 3 V), LPM4 (0.9 µA RAM retention), LPM4.5 (0.25 µA shutdown); extends battery life in intermittent-sensing applications. |
| Timers | Two 16-bit Timer_D modules (TD0/TD1), each with 3 capture/compare registers and high-resolution mode; supports precise PWM generation and time-stamped event capture. |
| I/O Capability | Up to 31 digital I/O pins, 12 of which are 5-V tolerant with 20-mA drive strength; simplifies interface to legacy logic and industrial sensors without level shifters. |
| Communication | USCI_A0 (UART/IrDA/SPI) + USCI_B0 (I²C/SPI); enables dual-protocol connectivity for sensor hubs or multi-interface gateways. |
| Package | 40-pin WQFN (RSB), 5 mm × 5 mm; surface-mount footprint optimized for compact, thermally efficient PCB designs. |
Pinout & Package
Package: 40-pin WQFN (RSB), 5 mm × 5 mm, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.5 | General-purpose I/O with USCI_A0/USCI_B0 secondary functions | Configurable as UART TX/RX, SPI master/slave, or I²C SDA/SCL; supports flexible peripheral routing via port mapping controller. |
| PJ.0–PJ.3 | General-purpose I/O with SMCLK/MCLK/ACLK/ADC10CLK outputs | Provides clock signal distribution to external circuitry; PJ.2 and PJ.3 also serve as JTAG test pins (TMS/TCK). |
| P2.0–P2.7 | Timer_D and TEC fault/clear I/O | Dedicated to TD0/TD1 compare/capture and timer error correction (TEC) inputs; enables robust motor control timing and fault handling. |
| P3.0–P3.3 | Timer_A clock input, comparator output, and TD0/TD1 clock routing | Supports TA0 clock synchronization, CBOUT signal routing, and TD0CLK/MCLK output-critical for multi-timer coordination. |
| RST/NMI/SBWTDIO | Reset, nonmaskable interrupt, Spy-Bi-Wire data I/O | Single-pin debug interface (SBW) reduces PCB footprint; NMI enables hardware-triggered emergency routines. |
| DVIO | 5-V-tolerant I/O power supply | Independent 5-V rail allows safe interfacing with 5-V peripherals while core runs at 1.8–3.6 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby | 1.1 µA in LPM3 with VLO active-enables >10-year coin-cell operation in periodic wake-up sensor nodes. |
| Reconfigurable port mapping | Per-pin assignment of USCI, Timer_D, and comparator functions-eliminates fixed-function pin conflicts during layout. |
| Dual high-resolution timers | TD0 and TD1 each support 256-MHz clock multiplication and buffered capture/compare-delivers 3.9-ns timing resolution for precision motor commutation. |
| 5-V-tolerant I/O with 20-mA drive | Direct interface to industrial sensors, displays, and logic without external buffers-reduces BOM count and board area. |
| Integrated LDO with programmable core voltage | On-chip regulated VCORE (1.8–2.2 V) decouples core supply from DVCC fluctuations-improves noise immunity in noisy environments. |
Applications
| Smart Thermostat Sensor Node | Industrial Remote Control Hub |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity node sampling every 5 minutes and transmitting via sub-GHz RF link. IC Role / Device Role / Timing Role: Main controller managing sensor readout, low-power sleep/wake scheduling, and RF interface timing via TD0/TD1. Use Value: 1.1 µA LPM3 current and <5 µs wake-up minimize energy per sample; 5-V-tolerant I/O directly drives RF transceiver enable lines. |
Use Scenario: Multi-protocol IR/RF remote control supporting learning, macro execution, and status LED feedback. IC Role / Device Role / Timing Role: Central MCU coordinating IR carrier generation (USCI_A0 IrDA), RF packet framing (USCI_B0 SPI), and LED PWM dimming (TD0/TD1). Use Value: Dual USCI modules enable concurrent IR and RF operation; high-resolution timers deliver stable 38-kHz IR carrier and smooth LED fade transitions. |
| Digital Power Supply Monitor | LED Lighting Dimming Controller |
|
Use Scenario: Standalone voltage/current monitor for AC-DC adapters, logging over UART and triggering over-temperature alerts. IC Role / Device Role / Timing Role: System supervisor monitoring analog inputs (via external ADC), executing safety logic, and managing UART diagnostics. Use Value: 16-channel comparator performs real-time overvoltage/overcurrent detection without CPU intervention; 20-mA I/O drives optocoupler fault signals directly. |
Use Scenario: Constant-current LED driver for architectural lighting with DALI or 0–10 V dimming interface. IC Role / Device Role / Timing Role: Timing-critical PWM generator synchronizing multiple LED channels using TD0/TD1 high-resolution mode. Use Value: Sub-4-ns timer resolution ensures flicker-free dimming across wide brightness ranges; USCI_B0 I²C configures external LED drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5172IRSBR | Includes 10-bit ADC10_A (9 external + 2 internal channels); otherwise identical Flash/RAM/peripherals/package. | Required when on-chip analog sensing (e.g., temperature, voltage) is needed without external ADC. | Select MSP430F5172IRSBR only if ADC functionality is essential; MSP430F5171IRSBR reduces cost and power when external ADC or digital sensors are used. |
| MSP430F5151IRSBR | 16 KB Flash / 2 KB RAM; same peripheral set and low-power specs as MSP430F5171IRSBR. | Suitable for simpler firmware (e.g., basic remote control, single-sensor node) where 32 KB Flash is unnecessary. | Choose MSP430F5151IRSBR to lower unit cost and simplify qualification when application code size fits within 16 KB Flash. |
Compared with MSP430F5172IRSBR, the MSP430F5171IRSBR removes ADC overhead for pure digital control tasks, while MSP430F5151IRSBR offers a cost-optimized entry point with reduced memory-both retain identical timer precision, I/O drive, and ultra-low-power performance critical for long-life embedded systems.
Availability
MSP430F5171IRSBR is available at Aetrix Electronics and suitable for smart thermostat sensor nodes, industrial remote control hubs, digital power supply monitors, and LED lighting dimming controllers requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5171IRSBR 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 ultra-low-power MCU innovation.
The MSP430F51x1 product line was designed for battery-operated measurement and control applications demanding nanowatt-level standby power, fast wake-up, and robust mixed-signal integration without ADC overhead.
FAQ
What is the key functional difference between MSP430F5171IRSBR and MSP430F5172IRSBR?
The MSP430F5171IRSBR lacks the 10-bit ADC10_A module present in the MSP430F5172IRSBR. All other specifications-including 32 KB Flash, 2 KB RAM, dual Timer_D, USCI_A0/B0, comparator, I/O count, and package-are identical. This makes MSP430F5171IRSBR ideal for applications using external ADCs or purely digital sensors, reducing power and cost where on-chip analog conversion is unnecessary.
Does MSP430F5171IRSBR support 25-MHz operation with an external crystal?
Yes, MSP430F5171IRSBR supports high-frequency crystal operation up to 25 MHz via the XT1 oscillator. The device's unified clock system includes FLL stabilization circuitry to lock and maintain accurate system clocking from the external crystal, enabling full-speed CPU and peripheral operation at maximum rated frequency.
How many 5-V-tolerant I/O pins does MSP430F5171IRSBR have, and what is their drive strength?
MSP430F5171IRSBR provides up to twelve 5-V-tolerant digital I/O pins with configurable 20-mA drive strength. These pins operate safely with 5-V signals while the core runs at 1.8–3.6 V, eliminating need for external level shifters when interfacing with legacy sensors, displays, or industrial logic circuits.
What is the wake-up time from LPM3 standby mode for MSP430F5171IRSBR?
The MSP430F5171IRSBR wakes up from LPM3 (standby with watchdog timer active) in less than 5 µs. This rapid transition is achieved using the internal very-low-power oscillator (VLO) or a 32-kHz crystal, ensuring minimal latency for time-critical event response in energy-constrained applications.
Is MSP430F5171IRSBR pin-compatible with other packages in the MSP430F51x1 family?
No-MSP430F5171IRSBR uses the 40-pin WQFN (RSB) package. The same part number is not offered in TSSOP or DSBGA variants; those are assigned distinct orderable numbers (e.g., MSP430F5171IDA for 38-pin TSSOP). Pinout and thermal characteristics differ across packages, so PCB layout is not interchangeable.
MSP430F5171IRSBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 31
- 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:
MSP430F5171IRSBR FAQ
1.How can I place an order for MSP430F5171IRSBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5171IRSBR 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 MSP430F5171IRSBR reliable?
The price and inventory of MSP430F5171IRSBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5171IRSBR is usually 5 days.
3.What payment methods are accepted for MSP430F5171IRSBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5171IRSBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5171IRSBR?
MSP430F5171IRSBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5171IRSBR 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 MSP430F5171IRSBR?
For technical support, including MSP430F5171IRSBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5171IRSBR requirements.
6.How does Aetrix verify that MSP430F5171IRSBR is sourced from the original manufacturer or authorized distributors?
All MSP430F5171IRSBR 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 MSP430F5171IRSBR meets industry standards.
7.What is the process for return or replacement of MSP430F5171IRSBR?
All MSP430F5171IRSBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5171IRSBR, 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 MSP430F5171IRSBR part is unused and in its original packaging.
Return procedure for MSP430F5171IRSBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F5171IRSBR 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…
