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Texas Instruments TM4C129DNCPDTI3R — Microcontrollers & Processors (MCU / MPU / DSP)

TM4C129DNCPDTI3R Tiva C MCU, 120MHz Cortex-M4F, 1MB Flash

MPNTM4C129DNCPDTI3R
Active

Texas Instruments Tiva™ C TM4C129DNCPDTI3R, ARM® Cortex®-M4F 32-bit MCU, 120MHz, 1MB Flash, 256K x 8 SRAM, 6K x 8 EEPROM, 90 I/O, Ethernet + CAN + USB OTG, 128-TQFP, -40°C to 85°C.

$12.4105Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TM4C129DNCPDTI3R specifications
ParameterValue
SeriesTiva™ C
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.97V ~ 3.63V
Operating temperature-40°C~85°C(TA)
Speed120MHz
PackageTape & Reel (TR)
RAM size256K x 8
Core size32-Bit Single-Core
EEPROM size6K x 8
PeripheralsBrown-out Detect/Reset, DMA, Motion Control PWM, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, Ethernet, I²C, IrDA, QEI, SPI, SSI, UART/USART, USB OTG
Number of i (O)90
Core processorARM® Cortex®-M4F
Case128-TQFP
Data convertersA/D 20x12b
Program memory size1MB (1M x 8)

Product details

That core speed means the MCU can run a real-time control loop — say, a motor FOC at 20 kHz — while simultaneously handling Ethernet packet processing and a touchscreen HMI without a separate communications processor. The 1 MB Flash and 256K x 8 SRAM give enough room for a full TCP/IP stack, a FreeRTOS or TI-RTOS kernel, and application code for an industrial gateway or a building automation controller.

Connectivity set — Ethernet, CAN, USB OTG, and 90 I/O

This part integrates an Ethernet MAC+PHY, two CAN 2.0 controllers, USB OTG (Host/Device), plus eight UARTs, four SPI/I²C modules, and a QEI for quadrature encoder inputs. That peripheral mix targets exactly the class of designs that need a single-chip controller for a factory-floor gateway: one CAN bus talks to a VFD, the Ethernet port streams telemetry to the cloud, and the USB OTG connects a flash drive for local data logging. The 90 general-purpose I/O, mapped across the 128-TQFP package, leave enough pins for a parallel LCD interface, external memory via the EBI/EMI bus, and a keypad matrix without a port expander.

That means it is suitable for new design-ins and production ramp without an obsolescence clock.

The 128-TQFP (14x14 mm) with 0.4 mm pitch needs a controlled-impedance PCB stack and solder-mask-defined pads; the MSL rating (typically MSL 3) means a bake before reflow if the moisture-barrier bag has been open past the floor-life window.

Supply voltage range and on-chip data converters

The core and I/O operate from 2.97 V to 3.63 V, which is the standard 3.3 V rail with margin for a linear regulator's dropout. The 20-channel 12-bit ADC samples at up to 2 Msps — enough for three-phase current sensing plus a few auxiliary analog inputs in a motor-drive application.

Frequently asked questions

Is TM4C129DNCPDTI3R still active or nearing end of life?

TM4C129DNCPDTI3R carries an Active lifecycle status.

What are the direct alternatives or replacements for TM4C129DNCPDTI3R?

Within the Tiva C TM4C129 family, the TM4C129DNCPDTI3 (without the 'R' suffix) is functionally identical but ships in a tray instead of Tape & Reel. The TM4C1294NCPDTI3R offers the same core and peripherals with 512 KB Flash if the 1 MB is more than the application needs.

What is the difference between TM4C129DNCPDTI3R and TM4C129DNCPDTI3?

The 'R' suffix in TM4C129DNCPDTI3R indicates Tape & Reel packaging; TM4C129DNCPDTI3 ships in a tray. The silicon, firmware, and pinout are identical — the difference is purely the shipping medium, which affects pick-and-place feeder setup but not the design fit.

Is TM4C129DNCPDTI3R RoHS compliant?

The TM4C129DNCPDTI3R is manufactured as RoHS-compliant per TI's standard green packaging policy. The 128-TQFP package is lead-free compatible with standard reflow profiles.