Texas Instruments TM4C123AE6PMI7R

Overview

TM4C123AE6PMI7R 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 (up to 1MSPS), dual 16-bit PWM modules, and USB 2.0 device interface. It operates at 80 MHz, supports -40°C to +85°C industrial temperature range, and is used in motor control, industrial automation, and embedded HMI systems.

For engineers reviewing the TM4C123AE6PMI7R datasheet, TM4C123AE6PMI7R pinout, TM4C123AE6PMI7R application, or TM4C123AE6PMI7R equivalent, key selection criteria include its integrated USB PHY, deterministic FPU performance for real-time control, on-chip ROM bootloader, and support for TivaWare™ software stack in resource-constrained edge devices.

Technical Context

The TM4C123AE6PMI7R implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit and 16-stage pipeline, enabling deterministic execution of control algorithms. It integrates a 12-channel μDMA controller, 8 general-purpose timers (including 32/64-bit wide variants), and four UARTs with IrDA and ISO 7816 support.

System-level integration includes a programmable clock tree with PLL, multiple low-power sleep modes (with wake-on-event), and hardware-enforced memory protection via MPU. Analog subsystem comprises two independent 12-bit ADCs with up to 16 sample sequencers and internal temperature sensor.

Key Specifications

Pinout & Package

TM4C123AE6PMI7R is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are validated per TI SPMS363E datasheet Rev E (June 2014).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PM, TM4C123AE6PMI7R offers identical functionality at lower temperature rating and cost; versus STM32F407VGT6, it delivers tighter real-time control latency due to integrated USB PHY and motion-control peripherals, despite lower clock speed.

Availability

TM4C123AE6PMI7R is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and human-machine interface applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TM4C123AE6PMI7R 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 with over 90 years of innovation in industrial, automotive, and consumer electronics.

The TM4C123AE6PMI7R belongs to TI's Tiva C Series microcontrollers, designed specifically for cost-sensitive, real-time embedded applications demanding integrated analog, motion control, and USB connectivity without external components.

FAQ

What is the maximum operating frequency of the TM4C123AE6PMI7R?

The TM4C123AE6PMI7R operates at a maximum system clock frequency of 80 MHz, achieved via its integrated PLL that accepts a 4–25 MHz crystal or external clock source. This frequency is fully supported across the entire industrial temperature range (-40°C to +85°C), and all peripherals-including USB, ADC, and PWM-are rated for concurrent operation at this speed. The TM4C123AE6PMI7R does not require derating in standard industrial environments.

Does the TM4C123AE6PMI7R include an integrated USB physical layer (PHY)?

Yes, the TM4C123AE6PMI7R integrates a full-speed USB 2.0 device PHY, eliminating the need for external transceivers. Its USB0DM and USB0DP pins connect directly to a standard USB Type-A or Micro-B receptacle. This integration reduces BOM count, PCB footprint, and EMI concerns compared to MCU solutions requiring discrete PHYs-making the TM4C123AE6PMI7R especially suitable for compact, cost-sensitive USB-enabled devices.

How much on-chip flash and SRAM does the TM4C123AE6PMI7R provide?

The TM4C123AE6PMI7R includes 256 KB of on-chip flash memory and 32 KB of SRAM. Flash is organized into 1 KB sectors for flexible firmware partitioning and over-the-air update implementation. SRAM is unified and accessible at full CPU speed, supporting RTOS stacks, USB endpoint buffers, and real-time control data structures. Both memories retain full specification compliance across the device's rated temperature and voltage ranges.

What analog capabilities does the TM4C123AE6PMI7R offer?

The TM4C123AE6PMI7R features two independent 12-bit analog-to-digital converters (ADCs), each supporting up to 16 sample sequencers and hardware averaging. It provides 12 dedicated analog input channels (AIN0–AIN11), internal temperature sensor, and differential sampling mode. Maximum conversion rate is 1 million samples per second (1 MSPS) per ADC, with typical INL of ±1 LSB-enabling accurate current sensing, voltage monitoring, and sensor interfacing in industrial control applications.

Is the TM4C123AE6PMI7R pin-compatible with other Tiva C Series MCUs?

The TM4C123AE6PMI7R uses a 64-pin LQFP package with a defined pinout documented in TI's SPMS363E datasheet. It shares the same package footprint and core peripheral mapping with other TM4C123x devices such as TM4C123GH6PM, enabling PCB reuse across temperature-grade variants. However, pin compatibility is limited to the TM4C123 family; it is not compatible with TM4C129x or Hercules safety MCUs due to differing peripheral sets and register layouts.