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Texas Instruments (TI) Pinout Reference

Explore Texas Instruments (TI) development board pinouts with this free TI Pinout Reference. View GPIO layouts, power pins, UART, SPI, I2C, PWM, ADC, DAC, and connector configurations.

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  • 32-Bit ARM Cortex-M4F LaunchPad
    MSP-432P401R Pinout →
    MSP-432P401R EXTENDED 40-PIN BOOSTERPACK J1 (3.3V) J2 (GND) J3 (SPI/PWM) J4 (Analog/IO)
    DIAGRAM: 40-PIN EXTENDED BOOSTERPACK SCHEMATIC

    MSP-432P401R Standard 40-Pin Header Table

    Pin J1/J3 (Left Side Pins) Pin J2/J4 (Right Side Pins)
    13.3V Output Rail215.0V Output Rail
    2P6.0 (Analog Input A15)22Ground (GND)
    3P3.2 (UART RX)23P2.5 (SPI1_CS)
    4P3.3 (UART TX)24P2.6 (SPI1_MISO)
    5P4.1 (Analog Input A12)25P2.7 (SPI1_MOSI)
    6P4.3 (Analog Input A10)26P2.4 (SPI1_CLK)
    7P1.5 (SPI0_CLK)27P5.6 (Analog Input A1)
    8P4.6 (Analog Input A6)28P6.6 (Analog Input A3)
    9P6.5 (I2C SDA)29P6.7 (Analog Input A4)
    10P6.4 (I2C SCL)30P5.0 (Analog Input A5)
    11P3.6 (General GPIO)31P2.0 (PWM Timer)
    12P5.2 (General GPIO)32P2.1 (PWM Timer)
    13P5.1 (General GPIO)33P2.2 (PWM Timer)
    14P2.3 (General GPIO)34P2.3 (PWM Timer)
    15P1.6 (SPI0_MISO)35P5.7 (Analog Input A2)
    16P1.7 (SPI0_MOSI)36P6.1 (Analog Input A14)
    17P5.4 (Analog Input A0)37P4.0 (Analog Input A13)
    18P5.5 (Analog Input A1)38P4.2 (Analog Input A11)
    19P1.1 (SPI0_CS)39P4.4 (Analog Input A9)
    20Ground (GND)40P4.5 (Analog Input A8)
  • Ultra-Low Power FRAM LaunchPad
    MSP-EXP430FR6987 Pinout →
    MSP-EXP430FR6987 40-PIN FRAM INTERFACE
    DIAGRAM: FRAM LAUNCHPAD SYSTEM MAP

    MSP-EXP430FR6987 Main Pinout Table

    BoosterPack Pin MSP430 Port Name Primary Function Type SPI / I2C / UART Alternate Functions
    J1.1VCCPower Out3.3V power output from low-dropout regulator
    J1.2P1.0Analog InputA0 Analog Input / General purpose GPIO
    J1.3P2.1UART RXUCA0_RXD (Serial input line)
    J1.4P2.0UART TXUCA0_TXD (Serial output line)
    J1.5P1.1Analog InputA1 Analog Input / General purpose GPIO
    J1.6P1.2Analog InputA2 Analog Input / General purpose GPIO
    J1.7P1.5SPI ClockUCB0_CLK (SPI Serial Clock)
    J1.8P1.3Analog InputA3 Analog Input / General purpose GPIO
    J1.9P1.7I2C SDAUCB0_SDA (I2C Serial Data)
    J1.10P1.6I2C SCLUCB0_SCL (I2C Serial Clock)
    J2.1GNDPowerSystem common ground reference
    J2.2P2.4Digital I/OGeneral Purpose Digital Pin / Timer Output
    J2.3P1.4SPI CSUCB0_STE (SPI Chip Select)
    J2.4P2.3SPI MISOUCB0_MISO / Master In Slave Out
    J2.5P2.2SPI MOSIUCB0_MOSI / Master Out Slave In
    J2.6RSTInputActive-Low Hardware Reset Pin
  • Low-Power Segment LCD LaunchPad
    MSP-430FR4133 Pinout →
    MSP-430FR4133 (20-PIN HEADER)
    DIAGRAM: 20-PIN MAIN BOOSTERPACK LAYOUT

    MSP-430FR4133 Standard Header Table

    Pin J1 (Left Side Pins) Pin J2 (Right Side Pins)
    13.3V Output Power Rail11Ground (GND)
    2P8.3 (Analog Input A8)12P8.2 (General GPIO)
    3P1.1 (UART RX)13P5.2 (SPI Chip Select)
    4P1.0 (UART TX)14P5.1 (SPI MISO)
    5P8.1 (Analog Input A9)15P5.0 (SPI MOSI)
    6P8.0 (Analog Input A10)16Active-Low Reset Pin
    7P5.3 (SPI Clock)17P1.3 (General GPIO)
    8P2.7 (Analog Input A11)18P1.4 (General GPIO)
    9P1.3 (I2C SDA)19P1.5 (General GPIO)
    10P1.2 (I2C SCL)20Ground (GND)
  • Tiva C Series ARM Cortex-M4F
    EK-TM4C123GXL Pinout →
    EK-TM4C123GXL TIVA C 40-PIN INTERFACE
    DIAGRAM: TIVA C EXPANSION PORT LAYOUT

    EK-TM4C123GXL Main Pinout Table

    BoosterPack Pin Tiva Port Name Bus Type Alternative Functions & Explanations
    J1.1VCC_3V3Power OutRegulated 3.3V Output Rail
    J1.2PB5Analog InputAIN11 Analog Input / General Purpose GPIO
    J1.3PB0UART RXU1RX (Serial Port Receiver 1)
    J1.4PB1UART TXU1TX (Serial Port Transmitter 1)
    J1.5PE4Analog InputAIN9 Analog Input / General Purpose GPIO
    J1.6PE5Analog InputAIN8 Analog Input / General Purpose GPIO
    J1.7PB4SPI ClockSSI2CLK (SPI Serial Clock)
    J1.8PA5Analog InputAIN2 Analog Input / General Purpose GPIO
    J1.9PA6I2C SDAI2C1SDA (I2C Serial Data Bus)
    J1.10PA7I2C SCLI2C1SCL (I2C Serial Clock Bus)
    J2.1GNDPowerSystem common ground reference
    J2.2PB2Digital I/OGeneral Purpose Digital Pin / Timer Output
    J2.3PE0SPI CSSSI2FSS (SPI Chip Select)
    J2.4PD2SPI MISOSSI2Rx (SPI Master In Slave Out)
    J2.5PD3SPI MOSISSI2Tx (SPI Master Out Slave In)
    J2.6RSTInputActive-Low Hardware Reset Pin

Input Parameters Specification

SBC Quick FilterLocate individual board layouts using the top dynamic search utility.
BoosterPack Header StandardsTI utilizes standardized 20-pin and 40-pin header profiles across different LaunchPad series.
MSP430 Ultra-Low PowerFRAM arrays on the FR series allow near-instantaneous non-volatile writes at low active currents.
Tiva C PWM ModulesTiva C ARM controllers provide dedicated hardware PWM generators suitable for motor control.

Practical Operational Examples

Configuring Serial Console on TI

Target pins J1.3 (RX) and J1.4 (TX) with a 3.3V USB-to-UART converter to establish serial terminal debug consoles safely.

Connecting I2C BoosterPacks

Stack multiple sensors using standard BoosterPack layouts, keeping I2C pull-up logic active.

analog Channel Readings

Ensure any analog signals connected to ADC pins stay below the VCC (3.3V) threshold to prevent hardware damage.

Hardware Reset Implementation

Pull the reset pin low momentarily to force a hardware reset on the target microcontroller.

Logic and Power Rail Theory

Texas Instruments LaunchPads operate primarily on a 3.3V CMOS logic rail, powered by on-board LDO or switching regulators. Applying 5V directly to input pins without a logic-level shifter will damage the internal silicon junctions of the microcontroller.

Tip: Always verify ground (GND) connections first to protect serial buses and analog inputs from static discharge.

Formulas & Mathematical Logic

Series Current Limiting: R_series = (3.3V - V_led) / I_target (Keep below 4-8mA per pin)
I2C Pull-Up Range: R_min = (3.3V - V_low) / I_sink, preventing overcurrent drain on open-drain pins.
ADC Resolution Calculation: V_step = 3.3V / 1024 steps (Based on 10-bit analog conversion resolution)

About This Reference Guide

Quick access to standard Texas Instruments development board layouts.

This reference consolidates layout configurations, logic states, and physical system interfaces across the TI LaunchPad family.

Finding accurate pinout layouts is crucial for embedded designers, system architects, IoT engineers, and DIY hobbyists. This directory documents active signal paths to help prevent wiring errors, serial protocol failures, and board damage.

Always verify pinout configurations with a digital multimeter before powering up custom circuits or shield adapters.

Supported BoardsMSP432, MSP430, Tiva C, C2000, and SimpleLink CC series LaunchPads.
Hardware SafeguardsClear warnings regarding 3.3V logic thresholds and analog voltage boundaries.
Protocol MapsDirect pin definitions for SPI, UART, I2C, DAC, and active reset lines.
BoosterPack EcosystemExplains standard header configurations for easy modular prototyping.

Frequently Asked Questions

1. Are Texas Instruments LaunchPad GPIO pins 5V tolerant?

No, the logic pins operate strictly at a 3.3V threshold. Exposing any GPIO, SPI, or UART pins to a 5V logic source without a level shifter can cause immediate hardware failure.

2. What is the default baud rate of the serial console?

By default, TI LaunchPad development boards configure their main UART debug terminal (TX / RX) to a baud rate of 115200.

3. Can I power the board directly using the 5V pins?

Yes, you can apply regulated 5.0V directly to the 5V power header pins. However, this bypasses on-board input protection, so ensure your power source is regulated and stable.

4. Why do some SPI and I2C channels fail when multiple BoosterPacks are stacked?

Stacking too many devices on a single bus can exceed the safe capacitive load limit, degrading signal integrity. Use lower-value pull-up resistors or active bus extenders for long chains.

5. How do I reset search filters in this tool?

Clear any text from the search box at the top of the interface to restore the full list of pinout cards.

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Texas Instruments (TI) Pinout Reference is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.