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Texas Instruments MSP430F5151IRSBR
- Part No.:
- MSP430F5151IRSBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MSP430F5151IRSBR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,437
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Product details
Overview
MSP430F5151IRSBR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 16 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 supports sub-µA standby (1.1 µA LPM3) and shutdown (0.25 µA LPM4.5) modes for battery-powered sensor systems.
For engineers reviewing the MSP430F5151IRSBR datasheet, MSP430F5151IRSBR pinout, MSP430F5151IRSBR application, or MSP430F5151IRSBR equivalent, key selection criteria include its 16-channel comparator with ultra-low-power mode, dual high-resolution timers supporting capture/compare and high-resolution mode, integrated LDO with programmable core voltage, and compatibility with 32-kHz and up to 25-MHz crystal oscillators.
Technical Context
The MSP430F5151IRSBR belongs to the MSP430F51x1 family and lacks the ADC10_A module present in F51x2 variants-confirmed by Device Comparison Table 3-1 and Signal Descriptions footnote (3). Its peripheral set includes two 16-bit Timer_D modules (each with three capture/compare registers and buffer/event control), USCI_A0 and USCI_B0 with full UART, IrDA, SPI, and I²C support, and a 16-channel Comparator_B with configurable power modes.
The unified clock system integrates FLL stabilization, VLO (10 kHz), REFO (32.768 kHz), XT1 (32 kHz–25 MHz), and DCO with <5 µs wake-up from LPM3. Power management includes an on-chip LDO, SVM/SVS monitoring, brownout reset, and five low-power modes-optimized for portable measurement applications requiring deterministic latency and extended battery life.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators; enables efficient C code execution and minimal instruction cycles per operation. |
| Flash / RAM | 16 KB Flash / 2 KB RAM; sufficient for firmware with real-time sensor processing, communication stacks, and parameter storage without external memory. |
| Supply Voltage Range | 1.8 V to 3.6 V; supports direct connection to single Li-ion cell (3.0–3.6 V) or two alkaline cells (up to 3.2 V) with no external regulator needed. |
| Active Current | 180 µA/MHz at 3 V; enables energy-proportional processing-critical for duty-cycled sensor nodes where CPU load scales with event rate. |
| LPM3 Current | 1.1 µA at 3 V with VLO active; allows real-time clocking and periodic wake-up via RTC or comparator events while preserving RAM. |
| I/O Drive Strength | Up to 20 mA per pin (5-V-tolerant); drives LEDs, small relays, or logic interfaces directly without external buffers in space-constrained designs. |
| Timer Resources | Two independent 16-bit Timer_D modules (TD0, TD1), each with 3 capture/compare registers and high-resolution mode; supports PWM generation, input capture for timing analysis, and quadrature decoding. |
Pinout & Package
Package: 40-pin WQFN (RSB), 5 mm × 5 mm, 0.4-mm pitch, thermally enhanced with exposed thermal pad. Pinout validated per Figure 4-1 (RSB top view) and Table 4-1 (Signal Descriptions) in SLAS619R Rev. September 2018.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Nonmaskable Interrupt / Spy-Bi-Wire I/O | Active-low reset with internal pullup; enables NMI-triggered fault handling and in-system programming via 2-wire SBW interface-no JTAG header required. |
| P1.0–P1.5, P2.0–P2.7, P3.0–P3.7, PJ.0–PJ.6 | General-purpose digital I/O with port mapping | 31 total GPIOs; all support interrupt/wakeup, pullup/pulldown, and reconfigurable secondary functions (e.g., USCI, Timer_D, comparator inputs). |
| DVIO | 5-V-tolerant I/O supply rail | Separate 5-V power domain for I/Os allows interfacing with legacy 5-V peripherals while core runs at 1.8–3.6 V-reduces level-shifter count. |
| VCORE | Regulated core supply output | On-chip LDO output; voltage programmable in 0.1-V steps from 1.4 V to 2.8 V-optimizes active current vs. performance trade-off. |
| XIN / XOUT | Crystal oscillator input/output | Supports 32.768 kHz watch crystal (low-frequency mode) or up to 25 MHz crystal (high-frequency mode); essential for precise timing or RF sync. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LPM4.5 | 0.25 µA shutdown mode with RAM retention-enables years of operation on coin-cell batteries in infrequently awakened sensor endpoints. |
| Reconfigurable port mapping | Per-pin assignment of secondary functions (e.g., USCI, Timer_D, comparator) via software-eliminates PCB redesign when signal routing changes. |
| Dual Timer_D modules | Independent 16-bit timers with 3 capture/compare registers each and high-resolution mode-supports simultaneous motor phase control and encoder counting. |
| 16-channel Comparator_B | Configurable hysteresis, reference selection (internal/external), and ultra-low-power mode (<100 nA)-ideal for windowed voltage monitoring or zero-crossing detection. |
| Integrated LDO with programmable VCORE | On-die regulator with 1.4–2.8 V programmable output-reduces BOM count and enables dynamic voltage scaling to match computational load. |
Applications
| Smart Thermostat Sensor Node | Industrial LED Driver Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity node with local display and BLE gateway reporting. IC Role / Device Role / Timing Role: Main MCU executing sensor acquisition, data preprocessing, low-power scheduling, and serial interface to BLE module. Use Value: Sub-µA LPM3 enables >5-year battery life; 5-V-tolerant I/O drives display backlight directly; USCI_B0 handles I²C sensor reads without level shifters. |
Use Scenario: Constant-current LED driver for industrial signage with dimming, thermal foldback, and fault logging. IC Role / Device Role / Timing Role: System controller managing PWM dimming, analog current sensing, overtemperature shutdown, and UART diagnostics. Use Value: Dual Timer_D modules generate synchronized PWM and measure sense resistor voltage; Comparator_B provides fast overcurrent trip (<1 µs response). |
| Digital Power Supply Monitor | Remote IR Control Receiver Hub |
|
Use Scenario: In-field monitoring unit for AC/DC power supplies tracking output voltage, current, and ripple using analog front-end. IC Role / Device Role / Timing Role: Analog measurement engine with comparator-based threshold alerts and UART telemetry to host controller. Use Value: 16-channel comparator monitors multiple rails simultaneously; programmable VCORE reduces active power during idle periods between measurements. |
Use Scenario: Multi-protocol IR receiver hub consolidating signals from HVAC, TV, and audio remotes into a unified USB/HID interface. IC Role / Device Role / Timing Role: IR demodulator and protocol decoder using USCI_A0's hardware UART with automatic baud-rate detection. Use Value: USCI_A0 IrDA mode decodes NEC, RC-5, and Sony protocols in hardware; <5 µs wake-up ensures no IR pulse is missed during LPM3 sleep. |
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 |
|---|---|---|---|
| MSP430F5152IRSBR | 32 KB Flash, 2 KB RAM, includes ADC10_A (10-bit, 200 kSPS, 8 external + 2 internal channels) | Required when analog sensor data acquisition (e.g., thermistor, potentiometer) must occur on-device without external ADC | Select MSP430F5152IRSBR if design requires integrated high-speed ADC; otherwise, MSP430F5151IRSBR offers identical timer, USCI, and power features at lower cost and footprint. |
| MSP430F5131IRSBR | 8 KB Flash, 1 KB RAM, same peripheral set (no ADC10_A), reduced I/O count (29 pins vs. 31) | Suitable for simpler control tasks with minimal firmware and fewer external interfaces (e.g., basic timer-based sequencers) | Choose MSP430F5131IRSBR only when firmware size is <6 KB and I/O count ≤29; MSP430F5151IRSBR provides headroom for future feature expansion. |
Compared with MSP430F5152IRSBR, the MSP430F5151IRSBR removes ADC functionality but retains identical timer resolution, USCI capability, and ultra-low-power modes-making it optimal for digital-sensor or actuator-centric designs. Against MSP430F5131IRSBR, it delivers 100% more Flash and 100% more RAM while maintaining pin compatibility and power profile.
Availability
MSP430F5151IRSBR is available at Aetrix Electronics and suitable for analog and digital sensor systems, LED lighting controllers, and remote controls requiring stable component supply across long-lifecycle industrial deployments.
Supply support for MSP430F5151IRSBR 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 targets portable measurement and battery-operated applications demanding deterministic low-power operation, fast wake-up, and integrated analog peripherals-without requiring an ADC.
FAQ
What is the maximum operating frequency of the MSP430F5151IRSBR?
The MSP430F5151IRSBR supports a maximum system clock (MCLK) of 25 MHz, achievable using the high-frequency crystal oscillator (XT1) or digitally controlled oscillator (DCO) with FLL stabilization. This frequency enables real-time processing of time-critical tasks such as motor commutation or high-speed serial communication while maintaining sub-µA low-power modes when idle.
Does the MSP430F5151IRSBR include an analog-to-digital converter (ADC)?
No, the MSP430F5151IRSBR does not include the ADC10_A module. Per Table 3-1 (Device Comparison) and Signal Descriptions footnote (3), ADC functionality is exclusive to the MSP430F51x2 family (e.g., MSP430F5152). The MSP430F5151IRSBR retains all other peripherals-including dual Timer_D, USCI_A0/B0, and 16-channel Comparator_B-but omits the 10-bit ADC.
What package type and dimensions does the MSP430F5151IRSBR use?
The MSP430F5151IRSBR uses a 40-pin WQFN package (orderable code RSB), measuring 5 mm × 5 mm with 0.4-mm pitch and an exposed thermal pad. This compact, surface-mount package supports high-density PCB layouts and efficient heat dissipation-verified in Section 8 (Mechanical, Packaging, and Orderable Information) of SLAS619R.
Can the MSP430F5151IRSBR operate from a single 1.8-V supply?
Yes, the MSP430F5151IRSBR is fully specified to operate from 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality-including 16-bit Timer_D operation, USCI communication, and comparator operation-with adjusted timing margins. Active current scales linearly (180 µA/MHz at 3 V → ~108 µA/MHz at 1.8 V), enabling true single-cell lithium primary or two-cell alkaline operation.
How many I/O pins does the MSP430F5151IRSBR support, and are they 5-V tolerant?
The MSP430F5151IRSBR provides 31 general-purpose I/O pins (P1.x, P2.x, P3.x, PJ.x) with 5-V tolerance enabled by the dedicated DVIO supply rail. All I/Os support interrupt/wakeup, configurable pullup/pulldown, and software-reconfigurable secondary functions-validated in Table 4-1 (Signal Descriptions) and Section 1.1 (Features) of the datasheet.
MSP430F5151IRSBR 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:
- 16KB (16K 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:
MSP430F5151IRSBR FAQ
1.How can I place an order for MSP430F5151IRSBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5151IRSBR 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 MSP430F5151IRSBR reliable?
The price and inventory of MSP430F5151IRSBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5151IRSBR is usually 5 days.
3.What payment methods are accepted for MSP430F5151IRSBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5151IRSBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5151IRSBR?
MSP430F5151IRSBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5151IRSBR 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 MSP430F5151IRSBR?
For technical support, including MSP430F5151IRSBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5151IRSBR requirements.
6.How does Aetrix verify that MSP430F5151IRSBR is sourced from the original manufacturer or authorized distributors?
All MSP430F5151IRSBR 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 MSP430F5151IRSBR meets industry standards.
7.What is the process for return or replacement of MSP430F5151IRSBR?
All MSP430F5151IRSBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5151IRSBR, 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 MSP430F5151IRSBR part is unused and in its original packaging.
Return procedure for MSP430F5151IRSBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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