Texas Instruments Tiva C series, TM4C1231D5PZI7, 32-bit ARM Cortex-M4F MCU, 80 MHz, 64 KB Flash, 24 KB SRAM, 2 KB EEPROM, CAN, I²C, SPI, UART, 69 I/O, 100-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 | Tray |
| RAM size | 24K 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) | 69 |
| Core processor | ARM® Cortex®-M4F |
| Case | 100-LQFP |
| Data converters | A/D 12x12b |
| Program memory size | 64KB (64K x 8) |
The TM4C1231D5PZI7 runs an ARM Cortex-M4F core at 80 MHz with a hardware floating-point unit. Memory is 64 KB Flash for code, 24 KB SRAM for runtime data, and 2 KB EEPROM for calibration constants or fault logs that survive a power cycle. The EEPROM block is a practical advantage over pure-Flash MCUs — no need to wear-level a Flash page just to store a trim value.
The core runs at 80 MHz with a hardware floating-point unit.
The TM4C1231D5PZI7 uses the standard ARM Cortex-M4F JTAG/SWD debug interface. Any programmer that supports Cortex-M devices — such as TI's own ICDI, J-Link, or ST-Link — should work, but verify the target voltage and pinout against the 100-LQFP footprint.