TM4C1231H6PZIR Overview
The TM4C1231H6PZIR is a 32?bit microcontroller built on an ARM Cortex?M4F core. It targets embedded control tasks that need faster signal processing and more deterministic I/O than typical 8? or 16?bit devices. The device combines on?chip Flash and SRAM, multiple serial interfaces, and a broad set of GPIOs in a compact 64?pin package. It suits industrial and commercial designs that need a balance of compute, peripherals, and power efficiency. For sourcing and component details visit IC Manufacturer.
TM4C1231H6PZIR Technical Specifications
| MCU core | ARM Cortex?M4F |
| Maximum clock | 80 MHz |
| Flash memory | 32 KB |
| SRAM | 16 KB |
| Package | 64?pin LQFP (PZ) |
| Supply voltage | 3.3 V nominal |
| GPIOs | Up to 43 programmable I/O pins |
| ADC | Up to 2?? 12?bit ADC modules, multiple input channels |
| UART | Multiple UART/USART interfaces available (serial communications) |
| SPI / I2C | Several SPI and I2C controllers for peripheral connectivity |
| Temperature range | Industrial (?40 ??C to +85 ??C) |
| Packaging option | Tape and reel suffix (R) |
TM4C1231H6PZIR Key Features
- ARM Cortex?M4F core delivering DSP?capable instructions and a single?precision FPU for faster math and filtering tasks.
- On?chip Flash and SRAM enable compact firmware and in?system updates, which reduces BOM count and board area.
- Multiple serial interfaces (UART, SPI, I2C) simplify integration with sensors, displays, and external memory without extra bridge chips.
- High channel 12?bit ADC support improves analog measurement resolution compared to lower?resolution MCUs.
Typical Applications
- Industrial motor control and motor feedback systems where deterministic 32?bit processing and DSP support improve torque and speed control loops.
- Building automation controllers that require multiple serial links, reliable GPIO count, and compact Flash for firmware and telemetry stacks.
- Portable test equipment that benefits from 12?bit ADC accuracy, an FPU for signal processing, and a 64?pin package to fit moderate I/O needs.
- Embedded communications gateways that aggregate sensor data over SPI/I2C and forward packets via UART interfaces to higher?level controllers.
TM4C1231H6PZIR Advantages vs Typical Alternatives
Compared with basic 8? or 16?bit microcontrollers, this device offers a true 32?bit ARM core plus an FPU, which yields faster math and better signal?processing throughput. It integrates more serial interfaces and a higher channel 12?bit ADC than many low?end alternatives, reducing the need for external converters and interface ICs. The 64?pin package provides more GPIO and peripheral pin counts than smaller packages, while industrial temperature ratings keep designs robust across wider ambient ranges.
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TM4C1231H6PZIR Brand Info
This device is part of the TM4C family from Texas Instruments. TI positions the TM4C series as programmable microcontrollers for industrial and embedded applications, emphasizing software ecosystem support, development kits, and supply chain availability for production designs.
FAQ
What development tools support this MCU?
TI provides a comprehensive development ecosystem for TM4C devices, including compiler toolchains, code examples, and hardware support through its LaunchPad and evaluation kits. Third?party IDEs and debuggers that support ARM Cortex?M cores also work for software development and debugging.
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Which package and ordering option should I select?
This part is offered in a 64?pin LQFP package with tape?and?reel suffixes for automated assembly. Choose the reel option for high?volume PCB assembly and the tray/tube options for prototyping where available from distributors.
How many GPIO pins are available for peripherals?
The device exposes up to 43 programmable I/O pins, which can be assigned to UART, SPI, I2C, ADC inputs, timers, and general digital control. This provides more hardware flexibility than smaller 32?pin MCUs.
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Does this MCU include analog input capability?
Yes. The MCU includes 12?bit ADC modules with multiple input channels. This enables higher resolution analog measurements for sensors and signal acquisition without external ADCs.
What is the operating temperature and voltage?
Designed for industrial use, the device supports an ambient temperature range that covers typical industrial limits and runs from a 3.3 V nominal supply. Verify board?level power sequencing and decoupling as recommended in the datasheet.