Texas Instruments Tiva C series TM4C1231H6PGEI7R, ARM Cortex-M4F 32-bit MCU, 80MHz, 256KB Flash, 32K x 8 SRAM, 2K x 8 EEPROM, 105 I/O, 144-LQFP, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Tiva™ C |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.08V ~ 3.63V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tube |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 2K x 8 |
| Peripherals | Brown-out Detect/Reset, DMA, POR, WDT |
| Connectivity | CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 105 |
| Core processor | ARM® Cortex®-M4F |
| Case | 144-LQFP |
| Data converters | A/D 24x12b |
| Program memory size | 256KB (256K x 8) |
The Texas Instruments TM4C1231H6PGEI7R is a Tiva C series ARM Cortex-M4F 32-bit MCU clocked at 80 MHz, with 256 KB Flash and 32K x 8 SRAM. The floating-point unit handles PID loops and sensor fusion math without a separate DSP coprocessor. 105 general-purpose I/O lines in the 144-LQFP package give enough pins to drive a parallel LCD, read a bank of encoders, and still leave room for a CAN transceiver and two UARTs.
Within the Tiva C series, the TM4C1231H6PGEI7R shares the 144-LQFP footprint and base pinout with other TM4C123x devices. For a drop-in replacement with the same package and I/O count, look at the TM4C123GH6PMI7R — it offers the same 80 MHz Cortex-M4F core, 256 KB Flash, and 32K x 8 SRAM, but with additional USB OTG connectivity. Verify the peripheral set against your firmware before swapping.
The core runs at 80 MHz, which is the maximum clock for the Tiva C series Cortex-M4F. This provides enough throughput for real-time control loops and sensor fusion without external clock multiplication.
Texas Instruments provides RoHS and REACH compliance declarations for this part. The 144-LQFP package is lead-free and RoHS-compliant per TI's standard material declaration. UL and IEC certifications are not listed for this component; consult the TI compliance portal for the latest documentation.