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Texas Instruments TM4C1231C3PMIR — Microcontrollers & Processors (MCU / MPU / DSP)

TI TM4C1231C3PMIR Tiva C ARM Cortex-M4F MCU, 80 MHz

MPNTM4C1231C3PMIR
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Texas Instruments Tiva C series TM4C1231C3PMIR, ARM Cortex-M4F 32-bit MCU, 80 MHz, 32 KB Flash, 12 KB RAM, 2 KB EEPROM, 43 I/O, CAN/I2C/SPI/UART, 64-LQFP, -40°C to 85°C.

$5.0933Ref. price · indicative, final on quote
Texas Instruments TM4C1231C3PMIR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TM4C1231C3PMIR specifications
ParameterValue
SeriesTiva™ C
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.08V ~ 3.63V
Operating temperature-40°C~85°C(TA)
Speed80MHz
PackageTape & Reel (TR)
RAM size12K x 8
Core size32-Bit Single-Core
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, DMA, POR, WDT
ConnectivityCANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)43
Core processorARM® Cortex®-M4F
Case64-LQFP
Data convertersA/D 12x12b
Program memory size32KB (32K x 8)

Product details

The TM4C1231C3PMIR runs an ARM Cortex-M4F core at 80 MHz.

Memory sizing — 32 KB Flash, 12 KB RAM, 2 KB EEPROM

32 KB Flash (32K x 8) and 12 KB RAM (12K x 8) are on-chip. 2 KB EEPROM (2K x 8) stores calibration constants.

The CAN 2.0 interface (one node) is the standout for industrial bus nodes — motor drives, valve banks, or remote I/O blocks. I²C, SPI, SSI, and UART/USART cover local sensor links and debug consoles. 43 I/O in a 64-LQFP means most pins are usable; watch the analog function muxing on the 12-channel 12-bit ADC — those pins double as GPIO, so a full ADC scan uses 12 of the 43 I/O.

Supply range is 1.08 V to 3.63 V.

Frequently asked questions

What is the closest pin-compatible alternative to TM4C1231C3PMIR?

The TM4C1233C3PMI (64 KB Flash) and TM4C1294NCPDTI (256 KB Flash) share the same 64-LQFP footprint and peripheral set — a direct BOM swap for higher memory density without a PCB change.

What is TM4C1231C3PMIR's core speed?

The ARM Cortex-M4F core runs at 80 MHz, with hardware FPU for single-precision floating-point math.