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Texas Instruments TM4C123AH6PMIR — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments TM4C123AH6PMIR Tiva C MCU, 80MHz, 256KB Flash

MPNTM4C123AH6PMIR
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Texas Instruments Tiva C series TM4C123AH6PMIR, ARM Cortex-M4F 32-bit MCU, 80 MHz, 256 KB Flash, 32 KB RAM, 2 KB EEPROM, CAN/QEI/SPI/I²C/UART, 49 I/O, 64-LQFP, -40 to 85°C.

$6.6776Ref. price · indicative, final on quote
Texas Instruments TM4C123AH6PMIR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TM4C123AH6PMIR 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 size32K x 8
Core size32-Bit Single-Core
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, DMA, Motion PWM, POR, WDT
ConnectivityCANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)49
Core processorARM® Cortex®-M4F
Case64-LQFP
Data convertersA/D 12x12b
Program memory size256KB (256K x 8)

Product details

It packs 256 KB of Flash, 32 KB of SRAM, and 2 KB of EEPROM on-chip — the EEPROM block saves an external serial EEPROM for calibration constants or boot parameters.

The 80 MHz core with hardware FPU handles control loops with headroom for stack and communications. The 12-channel 12-bit ADC can sample three phase currents simultaneously.

Memory map and field-reprogramming

256 KB of Flash (256K x 8) supports a bootloader plus application image; the 32 KB SRAM (32K x 8) supports a real-time OS with buffers for CAN message queues.

No last-time-buy or EOL notice is in effect.

Frequently asked questions

What is TM4C123AH6PMIR's listed speed?

The core runs at 80 MHz with a single-precision FPU, which is the headline performance spec for real-time control loops.

What is the closest pin-compatible alternative to TM4C123AH6PMIR?

The TM4C123GH6PMI (with USB OTG) is pin-compatible and adds USB host/device capability; the TM4C1233H6PMI (no FPU) is a cost-reduced option. Both share the same 64-LQFP footprint and peripheral set.