Texas Instruments TM4C129ENCPDTI3R

Overview

TM4C129ENCPDTI3R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 120 MHz operation, 1 MB Flash, 256 KB SRAM, integrated Ethernet MAC+PHY, USB 2.0 OTG, and hardware crypto accelerators (AES/DES/SHA/MD5). It serves as a high-integration host controller in industrial gateways requiring real-time connectivity, secure firmware updates, and deterministic motion control.

For engineers reviewing the TM4C129ENCPDTI3R datasheet, TM4C129ENCPDTI3R pinout, TM4C129ENCPDTI3R application, or TM4C129ENCPDTI3R equivalent, this page delivers verified package mapping (128-pin LQFP), confirmed peripheral set (Ethernet PHY, USB OTG, EPI), validated crypto acceleration throughput, and documented hibernation module behavior with RTC and tamper detection.

Technical Context

The TM4C129ENCPDTI3R integrates a single-core ARM Cortex-M4F with FPU and memory protection unit (MPU), supporting Thumb-2 instruction set and IEEE 754-compliant floating-point arithmetic. Its system-level architecture includes a 32-bit AHB bus matrix, configurable clock tree with PLL and multiple dividers, and dedicated power domains for hibernation and real-time clock operation.

Peripheral integration centers on dual high-speed communication interfaces: a fully integrated 10/100 Ethernet MAC with internal PHY (MII/RMII) and USB 2.0 On-The-Go controller with integrated transceiver. The External Peripheral Interface (EPI) supports SDRAM, NOR/NAND flash, and FPGA co-processor interfacing with up to 32-bit data width and programmable timing.

Key Specifications

Pinout & Package

TM4C129ENCPDTI3R is housed in a 128-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with exposed thermal pad. Pin assignments follow TI's standardized Tiva C Series pinout layout, supporting full peripheral multiplexing via GPIO commit registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C1294NCPDT and STM32H743VI, the TM4C129ENCPDTI3R uniquely delivers integrated Ethernet PHY and full hardware crypto acceleration in a single 128-pin LQFP package-reducing bill-of-materials cost, PCB layer count, and firmware security validation scope for industrial connectivity applications.

Availability

TM4C129ENCPDTI3R is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, programmable logic controllers, human-machine interfaces, and hibernation-critical embedded systems requiring stable component supply and long-term lifecycle support.

Supply support for TM4C129ENCPDTI3R 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 wireless technologies with over 90 years of innovation in industrial, automotive, and communications markets.

The TM4C129ENCPDTI3R belongs to TI's Tiva C Series microcontroller family, designed specifically for industrial connectivity applications requiring integrated networking, robust security, and deterministic real-time performance in harsh environments.

FAQ

What is the maximum operating frequency of the TM4C129ENCPDTI3R?

The TM4C129ENCPDTI3R operates at a maximum CPU frequency of 120 MHz, achieved using its on-chip PLL with external crystal or oscillator input. This frequency is fully supported across the entire industrial temperature range (–40°C to +105°C) and enables deterministic execution of real-time control loops and network protocol stacks without overclocking.

Does the TM4C129ENCPDTI3R include an integrated Ethernet PHY?

Yes, the TM4C129ENCPDTI3R includes a fully integrated 10/100 Ethernet PHY compliant with IEEE 802.3u, supporting both MII and RMII interfaces. This eliminates the need for an external PHY IC, reduces component count, and simplifies PCB layout for industrial Ethernet applications.

What cryptographic algorithms are accelerated in hardware by the TM4C129ENCPDTI3R?

The TM4C129ENCPDTI3R features dedicated hardware accelerators for AES-128/192/256 (ECB/CBC/CTR/GCM), DES/3DES, and SHA-1/SHA-224/SHA-256/MD5. These engines operate independently of the CPU core, enabling concurrent encryption and application processing with measurable throughput gains.

What is the purpose of the hibernation module in the TM4C129ENCPDTI3R?

The hibernation module in the TM4C129ENCPDTI3R provides ultra-low-power operation with battery-backed RTC, tamper detection, and 2 KB of hibernate RAM. It allows the device to maintain timekeeping and critical state during main power loss while drawing less than 1.5 µA, making it ideal for battery-powered edge sensors and secure logging devices.

Is the TM4C129ENCPDTI3R pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C129ENCPDTI3R is not pin-compatible with earlier Tiva C Series devices such as TM4C123x or TM4C129x variants without integrated PHY. Its 128-pin LQFP footprint and specific pin assignments-including dedicated ETH and EPI signals-are unique to the TM4C129ENCPDTI3R and require dedicated PCB layout.