Texas Instruments TM4C123GH6PZI7

Overview

TM4C123GH6PZI7 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated USB 2.0 OTG, PWM, ADC (12-bit, 1MSPS), and multiple serial interfaces (UART, SPI, I²C). It operates at up to 80 MHz and supports -40°C to +85°C industrial temperature range in a 100-pin LQFP package. It serves as a main control unit in motor drives, industrial HMI, and connected sensor nodes.

For engineers reviewing the TM4C123GH6PZI7 datasheet, TM4C123GH6PZI7 pinout, TM4C123GH6PZI7 application, or TM4C123GH6PZI7 equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, deterministic real-time interrupt latency (<12 cycles), and TivaWare™ software support for rapid firmware development.

Technical Context

The TM4C123GH6PZI7 integrates an ARM Cortex-M4F core with single-precision floating-point unit (FPU), enabling efficient signal processing and control math. Its system-level integration includes a 200 kHz–80 MHz PLL-based clock system, configurable GPIOs with slew-rate control, and a μDMA controller supporting 32-channel arbitration for offloading CPU-bound peripheral transfers.

On-chip analog subsystem comprises two independent 12-bit ADCs (each with 8 sequencers, hardware averaging, and temperature sensor), while digital peripherals include four UARTs (one with ISO 7816/IR support), four SPI modules, and two I²C controllers with bus timeout detection. The hibernation module provides ultra-low-power operation with wake-up from RTC alarm or external pin event.

Key Specifications

Pinout & Package

TM4C123GH6PZI7 is housed in a 100-pin LQFP package (PZ suffix), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are fully defined in TI's SPMS377E datasheet Section 1.4 and Table 1-1 (Pin Assignments).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F407VGT6 and RA4M1AFB2NCP#AC0, TM4C123GH6PZI7 uniquely combines USB PHY integration, hibernation with RTC and battery-backed RAM, and industrial temperature rating in a single 100-pin LQFP package-making it optimal for cost-sensitive, low-power, USB-connected industrial edge devices.

Availability

TM4C123GH6PZI7 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, factory HMI panels, and IoT sensor gateways requiring stable component supply across multi-year production cycles.

Supply support for TM4C123GH6PZI7 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 experience in industrial and automotive-grade microcontrollers.

The TM4C123GH6PZI7 belongs to TI's Tiva C Series, designed specifically for cost-effective, real-time control applications in industrial automation, building systems, and portable instrumentation where USB connectivity and low-power operation are critical.

FAQ

What is the maximum operating frequency of the TM4C123GH6PZI7?

The TM4C123GH6PZI7 operates at a maximum system clock frequency of 80 MHz, achieved via its integrated PLL that accepts input from internal precision oscillator (±1% accuracy) or external crystal (4–25 MHz). This frequency is sustained across the full -40°C to +85°C industrial temperature range, and the TM4C123GH6PZI7 maintains deterministic interrupt latency and memory access timing at this speed.

Does the TM4C123GH6PZI7 include an integrated USB physical layer (PHY)?

Yes, the TM4C123GH6PZI7 integrates a full-speed USB 2.0 OTG PHY compliant with USB specification revision 2.0. It supports both host and device modes without requiring external transceivers, and includes dedicated pins (USB0DM/USB0DP) with internal termination and slew-rate control. This integration is confirmed in Section 1.3.3 and Figure 1-1 of the SPMS377E datasheet for TM4C123GH6PZI7.

What analog features does the TM4C123GH6PZI7 provide for sensor interfacing?

The TM4C123GH6PZI7 includes two independent 12-bit analog-to-digital converters (ADCs), each capable of 1 million samples per second (1 MSPS), with eight programmable sample sequencers, hardware averaging (up to 64 samples), and an internal temperature sensor. It also supports differential input mode and digital comparators for threshold-triggered interrupts - all directly usable by the TM4C123GH6PZI7 without external signal conditioning in most industrial sensor applications.

How does the hibernation module in the TM4C123GH6PZI7 reduce power consumption?

The hibernation module in the TM4C123GH6PZI7 enables deep-sleep states drawing as low as 1.7 µA (typical) while retaining RTC timekeeping, 2 KB of battery-backed RAM, and wake-up capability via external pin or RTC alarm. It uses a separate 32.768 kHz crystal or internal low-frequency oscillator, and the TM4C123GH6PZI7 exits hibernation in under 10 µs - making it ideal for battery-powered remote sensors and meters where duty cycling is essential.

Is the TM4C123GH6PZI7 supported by production-ready software libraries?

Yes, the TM4C123GH6PZI7 is fully supported by Texas Instruments' TivaWare™ Peripheral Driver Library, which includes certified drivers for all on-chip peripherals, USB stack (device/host/class), FAT file system, and FreeRTOS integration examples. These libraries are production-qualified, actively maintained, and shipped with complete source code - enabling rapid, reliable firmware development for the TM4C123GH6PZI7 without vendor lock-in.