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Texas Instruments TM4C123BH6PGEIR — Microcontrollers & Processors (MCU / MPU / DSP)

TM4C123BH6PGEIR Tiva C ARM Cortex-M4F MCU, 80 MHz, 256 KB Flash

MPNTM4C123BH6PGEIR
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Texas Instruments Tiva C series TM4C123BH6PGEIR, 32-bit ARM Cortex-M4F MCU, 80 MHz, 256 KB Flash, 32K x 8 RAM, 105 I/O, 144-LQFP, -40°C to 85°C.

$8.6174Ref. price · indicative, final on quote
Texas Instruments TM4C123BH6PGEIR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TM4C123BH6PGEIR 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)105
Core processorARM® Cortex®-M4F
Case144-LQFP
Data convertersA/D 24x12b
Program memory size256KB (256K x 8)

Product details

That FPU handles PID coefficients and sensor fusion math without software emulation — saves cycles on motor-drive or inverter control loops. The 256 KB Flash and 32K x 8 RAM give enough room for a real-time OS kernel, CANopen stack, and a modest data log buffer. 105 I/O lines break out to the 144-LQFP package, enough to capture encoder quadrature (QEI), drive a parallel LCD, and still leave pins for limit switches and status LEDs.

Industrial temperature range — enclosure realities

Supply range 1.08 V to 3.63 V.

EOL status — sourcing plan required

Connectivity and analog — fieldbus and sensor front-end

CAN, I²C, SPI, SSI, UART, and IrDA cover the common industrial interfaces: CAN for drive networks, SPI for external ADC/DAC, UART for Modbus RTU. The 24-channel 12-bit ADC samples analog inputs from thermocouples or current shunts without an external mux — one chip handles both the logic and the analog front-end.

Frequently asked questions

What is the closest pin-compatible alternative to TM4C123BH6PGEIR?

The base product number TM4C123 covers the same Tiva C family footprint and peripheral set. Check the specific variant's Flash and RAM size against your firmware image before substituting. No single pin-compatible replacement is listed here; verify against the datasheet.

What is TM4C123BH6PGEIR's listed speed?

80 MHz. That clock rate, combined with the Cortex-M4F FPU, handles real-time control loops and floating-point math without software emulation.