Texas Instruments TM4C123GH6PZI7R

Overview

TM4C123GH6PZI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated peripherals including USB 2.0 OTG, 8× UARTs, 2× CAN, 12-bit ADC (1MSPS), and PWM modules. It operates at 80 MHz and supports -40°C to +85°C industrial temperature range in a 100-pin LQFP package. It serves as the main control unit in motor drives, industrial PLCs, and smart sensor nodes.

For engineers reviewing the TM4C123GH6PZI7R datasheet, TM4C123GH6PZI7R pinout, TM4C123GH6PZI7R application, or TM4C123GH6PZI7R equivalent, key selection criteria include its integrated USB PHY, dual CAN controllers, hibernation module with RTC and battery-backed memory, and support for TivaWare™ software stack and TI's Code Composer Studio™ IDE.

Technical Context

The TM4C123GH6PZI7R implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit (FPU), NVIC with 80 interrupt lines, and SysTick timer. Its system-level integration includes a clock tree with PLL, multiple power domains (run/hibernate/sleep), and configurable GPIOs with slew-rate control and 5-V-tolerant inputs on select pins.

Peripherals are tightly coupled via the μDMA controller supporting 32-channel arbitration, enabling zero-CPU-overhead transfers between ADC, UART, CAN, and memory. The analog subsystem integrates a 12-bit, 1-MSPS ADC with 16 sample sequencers and hardware averaging, plus an internal temperature sensor calibrated to ±3°C accuracy.

Key Specifications

Pinout & Package

TM4C123GH6PZI7R is housed in a 100-pin LQFP package with exposed thermal pad (EP). Pin assignments follow TI's standardized Tiva C Series pin mapping, supporting multiplexed peripheral functions per GPIO bank (Port A–K), dedicated JTAG/SWD debug pins, and dedicated VDD/VSS pairs for analog/digital power domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F407VGT6 and MSP432P401RIPZT, TM4C123GH6PZI7R offers balanced performance, dual CAN, integrated USB PHY, and industrial-grade hibernation - making it optimal for cost-sensitive, field-deployed embedded systems requiring mixed-signal control and robust communications.

Availability

TM4C123GH6PZI7R is available at Aetrix Electronics and suitable for industrial motor control, smart building gateways, and portable medical sensor hubs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature extremes.

Supply support for TM4C123GH6PZI7R 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 focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and consumer markets with high-reliability silicon and software ecosystems.

The TM4C123 family was designed specifically for cost-effective, real-time embedded control applications demanding rich analog integration, deterministic timing, and seamless connectivity - targeting industrial automation, motor drives, and IoT edge nodes.

FAQ

What is the maximum operating frequency of the TM4C123GH6PZI7R?

The TM4C123GH6PZI7R operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL with an external crystal (4–25 MHz) or precision internal oscillator. This frequency is fully supported across the full industrial temperature range (-40°C to +85°C) and ensures deterministic execution of real-time control algorithms in the TM4C123GH6PZI7R.

Does the TM4C123GH6PZI7R include an integrated USB physical layer (PHY)?

Yes, the TM4C123GH6PZI7R integrates a full-speed USB 2.0 OTG PHY, eliminating the need for an external transceiver. This allows direct connection to USB cables and supports both device and host modes. The TM4C123GH6PZI7R uses dedicated USB0DP and USB0DM pins with internal termination and voltage regulation, simplifying board design and reducing BOM cost.

How many CAN controllers does the TM4C123GH6PZI7R support?

The TM4C123GH6PZI7R integrates two independent CAN 2.0A/B controllers (CAN0 and CAN1), each with 32 message objects, programmable bit timing, and FIFO support. This dual-CAN capability enables applications such as automotive diagnostic tools or industrial gateways that require concurrent communication on separate CAN buses - a key differentiator of the TM4C123GH6PZI7R.

What low-power modes are available on the TM4C123GH6PZI7R?

The TM4C123GH6PZI7R supports Sleep, Deep-Sleep, and Hibernation modes. In Hibernation mode, it draws as little as 1.6 µA while retaining RTC time, 2 KB of battery-backed RAM, and wake capability via external pins or RTC alarm. This ultra-low-power state is fully documented and tested for the TM4C123GH6PZI7R across its rated temperature range.

Is the TM4C123GH6PZI7R pin-compatible with other devices in the TM4C123 family?

Yes, the TM4C123GH6PZI7R shares the same 100-pin LQFP package and pinout with other TM4C123x variants (e.g., TM4C123GH6PM, TM4C123GE6PM), differing only in Flash/RAM size and temperature grade. This allows hardware reuse across designs - for example, upgrading to higher memory versions without PCB changes - a verified compatibility feature of the TM4C123GH6PZI7R footprint.