Texas Instruments TM4C123AE6PMIR

Overview

TM4C123AE6PMIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated analog peripherals including 12-bit ADC with 12 channels, two 16-bit PWM modules, and USB 2.0 device interface. It operates at up to 80 MHz and supports industrial temperature range (–40°C to +105°C) in a 64-pin LQFP package, used in motor control, sensor hubs, and embedded HMI systems.

For engineers reviewing the TM4C123AE6PMIR datasheet, TM4C123AE6PMIR pinout, TM4C123AE6PMIR application, or TM4C123AE6PMIR equivalent, key selection criteria include its integrated USB PHY, FPU-enabled floating-point performance, 12-bit ADC resolution with hardware averaging, and support for deterministic real-time control via NVIC priority grouping and μDMA channel arbitration.

Technical Context

The TM4C123AE6PMIR integrates an ARM Cortex-M4F core with single-precision FPU, enabling efficient execution of signal processing and control algorithms. It features a 32-bit bus architecture, memory protection unit (MPU), and nested vectored interrupt controller (NVIC) with 8-level priority grouping for deterministic response timing.

System-level integration includes on-chip USB 2.0 device controller with internal PHY, dual 16-bit general-purpose timers with PWM output capability, and a 12-channel 12-bit ADC with configurable sample sequencers and hardware averaging-supporting simultaneous analog acquisition and digital control loops without external components.

Key Specifications

Pinout & Package

TM4C123AE6PMIR is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined per TI SPMS363E datasheet Rev E (June 2014), supporting full peripheral multiplexing across GPIO banks A–G.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with TM4C123GH6PM and STM32F401CEU6, the TM4C123AE6PMIR delivers optimal balance of USB integration, analog precision, and industrial temperature rating in a cost-effective LQFP package-making it ideal for standalone embedded controllers where Ethernet or extreme memory scaling are unnecessary.

Availability

TM4C123AE6PMIR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor hubs, USB human interface devices, and smart lighting controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TM4C123AE6PMIR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.

The Tiva C Series, including TM4C123AE6PMIR, was designed to deliver high-performance ARM-based microcontrollers with integrated analog and communication peripherals for cost-sensitive, real-time embedded applications.

FAQ

What is the maximum operating frequency of the TM4C123AE6PMIR?

The TM4C123AE6PMIR operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL that accepts input from an external crystal (4–25 MHz) or internal oscillator. This frequency enables deterministic execution of control algorithms with sub-microsecond interrupt latency and supports real-time PWM generation at up to 80 MHz base clock.

Does the TM4C123AE6PMIR include an integrated USB physical layer?

Yes, the TM4C123AE6PMIR includes a full-speed USB 2.0 device controller with an integrated PHY, allowing direct connection to a standard USB Type-A receptacle without external transceivers. The USB interface supports CDC, HID, and DFU classes out of the box via TI's TivaWare software stack.

What analog peripherals are available on the TM4C123AE6PMIR?

The TM4C123AE6PMIR integrates a 12-bit, 1-MSPS analog-to-digital converter with 12 input channels, hardware sample averaging (up to 64x), and four independent sample sequencers. It also includes an internal temperature sensor and supports differential input mode for improved noise rejection in industrial signal conditioning.

Is the TM4C123AE6PMIR supported by TI's TivaWare software suite?

Yes, the TM4C123AE6PMIR is fully supported by TI's TivaWare™ Peripheral Driver Library, which provides production-ready drivers for all on-chip peripherals, including USB, ADC, PWM, UART, I²C, SSI, and μDMA. Example projects and HAL abstraction layers simplify development for real-time and USB-connected applications.

What is the temperature grade and package type of the TM4C123AE6PMIR?

The TM4C123AE6PMIR is rated for industrial temperature operation from –40°C to +105°C and is supplied in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. This package supports reflow soldering and provides mechanical stability for vibration-prone industrial environments.