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Texas Instruments TM4C1231H6PGEI — Microcontrollers & Processors (MCU / MPU / DSP)

TM4C1231H6PGEI Tiva C ARM Cortex-M4F MCU, 80 MHz, 256 KB Flash

MPNTM4C1231H6PGEI
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Texas Instruments Tiva C series TM4C1231H6PGEI, 32-bit ARM Cortex-M4F MCU, 80 MHz, 256 KB Flash, 32K x 8 RAM, 2K x 8 EEPROM, 105 I/O, 144-LQFP, -40 to 85 °C.

$11.8327Ref. price · indicative, final on quote
Texas Instruments TM4C1231H6PGEI datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TM4C1231H6PGEI 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
PackageTray
RAM size32K 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)105
Core processorARM® Cortex®-M4F
Case144-LQFP
Data convertersA/D 24x12b
Program memory size256KB (256K x 8)

Product details

80 MHz Cortex-M4F — where the headroom goes

The TM4C1231H6PGEI runs an ARM Cortex-M4F core at 80 MHz with a hardware floating-point unit. That FPU matters if you are doing sensor fusion, motor-control PID loops, or any math that would otherwise eat cycles in software. The 256 KB Flash and 32K x 8 RAM give you room for a real-time control stack plus a communication protocol like CAN or USB — the connectivity list includes CANbus, I²C, SPI, SSI, and UART/USART. 105 I/O in a 144-LQFP package means you can route a fair amount of parallel interface or discrete sensing without a CPLD.

Lifecycle — EOL hot, sourced through independent channels

Industrial temperature grade — -40 to 85 °C

The internal oscillator and brown-out detect keep it running through supply dips without an external supervisor.

Frequently asked questions

What is the closest pin-compatible alternative to TM4C1231H6PGEI?

The Tiva C family includes several 144-LQFP parts with the same Cortex-M4F core, similar peripheral sets, and the same 0.5 mm pitch. A direct drop-in replacement would need matching Flash/RAM and the same 105 I/O count — check the TM4C1233 and TM4C1294 series for pin-compatible options with larger memory.

What is TM4C1231H6PGEI's listed speed?

The core runs at 80 MHz.

What series is TM4C1231H6PGEI from?

It belongs to the Tiva C series from Texas Instruments.