Texas Instruments TM4C123GH6PGEI7R

Overview

TM4C123GH6PGEI7R 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), PWM, UART, I²C, SPI, USB 2.0, and hibernation module; used in industrial motor control, smart sensor nodes, and USB-connected embedded systems.

For engineers reviewing the TM4C123GH6PGEI7R datasheet, TM4C123GH6PGEI7R pinout, TM4C123GH6PGEI7R application, or TM4C123GH6PGEI7R equivalent, key selection factors include its 80 MHz CPU clock, 12-channel μDMA, 16 GPIO ports with interrupt capability, -40°C to +105°C extended temperature rating, and QFP-144 package compatibility with TI's TivaWare software stack.

Technical Context

The TM4C123GH6PGEI7R implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It integrates dual 12-bit ADCs with hardware averaging and up to 16 analog input channels.

System-level integration includes USB 2.0 device/OTG controller with PHY, hibernation module with RTC and battery-backed memory, and programmable logic for peripheral signal routing via GPIO commit registers and peripheral gate control.

Key Specifications

Pinout & Package

TM4C123GH6PGEI7R is housed in a 144-pin LQFP (PGE) package with 0.5 mm pitch, 20 × 20 mm body, and thermally enhanced exposed pad for improved heat dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PGEI7R, the TM4C1294NCPDT offers greater compute headroom and Ethernet but sacrifices hibernation efficiency, while the STM32F407VGT6 provides higher clock rate and memory at the cost of TI-specific peripherals like hibernate and USB PHY integration.

Availability

TM4C123GH6PGEI7R is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB human interface devices, and PLC I/O modules requiring stable component supply across long production lifecycles.

Supply support for TM4C123GH6PGEI7R 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 solutions for industrial, automotive, and consumer markets.

The TM4C123 series targets cost-sensitive, performance-driven embedded applications requiring real-time control, mixed-signal integration, and low-power operation-designed specifically for industrial automation, motor drives, and intelligent sensor endpoints.

FAQ

What is the maximum operating frequency of the TM4C123GH6PGEI7R?

The TM4C123GH6PGEI7R operates at a maximum CPU clock frequency of 80 MHz, derived from an internal PLL that accepts input from multiple clock sources including the precision internal oscillator (PIOSC), external crystal, or HSE. This frequency is fully supported across the full industrial temperature range (-40°C to +105°C) and enables deterministic real-time execution for control loops and communication stacks in the TM4C123GH6PGEI7R.

Does the TM4C123GH6PGEI7R include an integrated USB physical layer (PHY)?

Yes, the TM4C123GH6PGEI7R integrates a full-speed USB 2.0 PHY compliant with USB specification revision 2.0. This eliminates the need for an external transceiver when implementing USB device or OTG functionality. The PHY supports both D+ and D− lines directly, and the on-chip USB controller handles enumeration, descriptor handling, and endpoint management-key capabilities confirmed in the TM4C123GH6PGEI7R datasheet section 14.

What analog features are included in the TM4C123GH6PGEI7R?

The TM4C123GH6PGEI7R includes two independent 12-bit analog-to-digital converters (ADCs), each supporting up to eight sample sequencers and hardware averaging across up to 64 samples. It also features an internal temperature sensor, analog comparators, and voltage reference circuitry-all accessible through dedicated analog input pins and controlled via the TM4C123GH6PGEI7R's analog subsystem registers.

Is the TM4C123GH6PGEI7R qualified for extended temperature operation?

Yes, the TM4C123GH6PGEI7R is rated for operation from -40°C to +105°C ambient temperature, meeting industrial-grade qualification standards. This extended range is validated per TI's production test flow and applies to all core peripherals-including Flash, SRAM, ADC, USB, and GPIO-ensuring reliability in demanding environments such as factory automation or outdoor sensor enclosures using the TM4C123GH6PGEI7R.

How does the hibernation module in the TM4C123GH6PGEI7R reduce power consumption?

The hibernation module in the TM4C123GH6PGEI7R enables ultra-low-power operation by powering down the main system while retaining RTC functionality, battery-backed memory (up to 256 bytes), and wake-up capability via external pins or RTC match events. In hibernate mode, the TM4C123GH6PGEI7R draws less than 1 µA, making it suitable for energy-constrained applications like battery-powered telemetry nodes where longevity is critical.