Texas Instruments TM4C123GE6PZI7

Overview

TM4C123GE6PZI7 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated peripherals including USB 2.0, CAN, 8× UARTs, 2× ADCs (12-bit, 1MSPS), and PWM modules. It operates at 80 MHz across –40°C to +85°C and targets real-time industrial control, motor drive, and embedded connectivity applications.

For engineers reviewing the TM4C123GE6PZI7 datasheet, TM4C123GE6PZI7 pinout, TM4C123GE6PZI7 application, or TM4C123GE6PZI7 equivalent, key selection criteria include its integrated USB PHY, dual-CAN support, hibernation module with RTC and battery-backed memory, and TivaWare™ software ecosystem compatibility.

Technical Context

The TM4C123GE6PZI7 integrates a single-core ARM Cortex-M4F CPU with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It supports Thumb-2 instruction set, vector table relocation, and low-latency exception handling for deterministic real-time response.

System-level integration includes a hibernation module with dedicated 256-byte battery-backed RAM, real-time clock, and VDD3ON power mode; a μDMA controller supporting 32-channel arbitration; and analog subsystem with two independent 12-bit, 1-MSPS ADCs featuring hardware averaging and digital comparators.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F407VGT6 and MSP432P401RIPZ, the TM4C123GE6PZI7 uniquely balances 80 MHz deterministic control, dual CAN, integrated USB PHY, and hibernation capability in a single LQFP-100 package - ideal for cost-sensitive industrial gateways requiring mixed-bus connectivity and moderate compute.

Availability

TM4C123GE6PZI7 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, automotive diagnostic tools, and IoT edge gateways requiring stable component supply and long-term manufacturability.

Supply support for TM4C123GE6PZI7 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of automotive and industrial qualification expertise.

The TM4C123 family was designed for cost-sensitive, real-time embedded applications demanding integrated connectivity (USB/CAN), analog sensing, and low-power operation - targeting industrial automation, building control, and portable instrumentation.

FAQ

What is the maximum operating frequency of the TM4C123GE6PZI7?

The TM4C123GE6PZI7 operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL with support for multiple clock sources including external crystal, internal oscillator, or USB SOF clock. This frequency is fully supported across the full industrial temperature range (–40°C to +85°C) and enables deterministic execution of real-time control loops and communication stacks. The TM4C123GE6PZI7 maintains timing compliance without derating under worst-case voltage and temperature conditions.

Does the TM4C123GE6PZI7 include an integrated USB physical layer (PHY)?

Yes, the TM4C123GE6PZI7 includes a full-speed USB 2.0 Device/Host/OTG controller with an integrated PHY, eliminating the need for external transceivers in most designs. It supports VBUS sensing, ID pin detection, and on-chip termination resistors. This integration reduces bill-of-materials cost and board space while simplifying USB compliance testing - a key differentiator versus many competing Cortex-M4 microcontrollers such as the STM32F4 series, which require external PHY components.

How much SRAM and flash memory does the TM4C123GE6PZI7 provide?

The TM4C123GE6PZI7 integrates 256 KB of on-chip flash memory and 32 KB of general-purpose SRAM. The flash supports read-while-write operation and has error correction coding (ECC) for enhanced reliability. The SRAM is divided into contiguous blocks accessible by CPU and μDMA, enabling efficient buffer management for USB, CAN, and ADC streaming. These memory resources are sufficient to run TivaWare™-based applications with USB device stack, FreeRTOS, and custom control logic without external memory expansion.

What analog features are included in the TM4C123GE6PZI7?

The TM4C123GE6PZI7 includes two independent 12-bit analog-to-digital converters (ADCs), each capable of 1 million samples per second (1 MSPS), with up to 16 input channels per ADC, hardware oversampling (up to 64×), and built-in digital comparators. It also integrates an internal temperature sensor and supports differential input mode. These features enable high-fidelity acquisition of motor currents, voltage rails, and environmental parameters - critical for closed-loop industrial control where timing-critical sampling must align precisely with PWM events.

Is the TM4C123GE6PZI7 pin-compatible with other devices in the TM4C123 family?

Yes, the TM4C123GE6PZI7 shares the same LQFP-100 pinout and electrical characteristics with other TM4C123x devices in the same package variant (e.g., TM4C123GH6PZ, TM4C123BE6PZ), enabling drop-in replacement within the family for memory or feature upgrades. Pin compatibility covers power, ground, GPIO, peripheral alternate functions, and debug interfaces. However, differences in flash size, SRAM allocation, or peripheral enablement require corresponding firmware updates - the TM4C123GE6PZI7 is not pin-compatible with QFN or BGA variants of the same family.