Texas Instruments TM4C1299KCZADT3

Overview

TM4C1299KCZADT3 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 dual CAN 2.0B controllers - deployed in industrial gateways requiring deterministic real-time control, networked I/O, and secure firmware updates.

For engineers reviewing the TM4C1299KCZADT3 datasheet, TM4C1299KCZADT3 pinout, TM4C1299KCZADT3 application, or TM4C1299KCZADT3 equivalent, key selection criteria include integrated 10/100 Ethernet PHY, dual CAN FD-capable controllers (with bit-rate switching support), hardware AES-128 encryption, hibernation mode with RTC and battery-backed memory, and TivaWare™ software stack compatibility.

Technical Context

The TM4C1299KCZADT3 implements a full-featured ARM Cortex-M4F core with FPU and 120 MHz clock, coupled with on-chip peripherals including a single 10/100 Ethernet MAC + integrated PHY, two independent CAN 2.0B controllers supporting bit-rate switching (CAN FD-ready), and a dedicated hibernation module with RTC, tamper detection, and 2 KB of battery-backed SRAM.

It integrates a 12-bit 1-MSPS ADC with 16 channels, μDMA controller with 32-channel support, and advanced power management with multiple low-power modes (including deep-sleep hibernation at 1.7 µA). All peripherals are accessible via APB/AHB bus matrix with configurable priority arbitration.

Key Specifications

Pinout & Package

TM4C1299KCZADT3 is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow TI's standardized Tiva C Series pinout layout, supporting multiplexed peripheral functions across GPIO banks A–K.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VI and RZ/T1, the TM4C1299KCZADT3 uniquely combines integrated Ethernet PHY, dual CAN, hardware crypto, and hibernation in a single LQFP package - making it optimal for cost-sensitive, space-constrained industrial gateways needing mixed-protocol connectivity and secure power-loss resilience.

Availability

TM4C1299KCZADT3 is available at Aetrix Electronics and suitable for industrial gateways, automotive diagnostic tools, smart energy meter hubs, and programmable logic controller I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for TM4C1299KCZADT3 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 solutions, with decades of experience in industrial, automotive, and communications markets.

The TM4C1299KCZADT3 belongs to TI's Tiva C Series microcontroller family, designed specifically for real-time industrial connectivity applications requiring integrated Ethernet, CAN, security, and ultra-low-power hibernation capabilities.

FAQ

What is the maximum operating frequency of the TM4C1299KCZADT3?

The TM4C1299KCZADT3 operates at a maximum system clock frequency of 120 MHz, derived from its internal PLL driven by either the internal precision oscillator or an external crystal. This frequency is sustained across the full industrial temperature range (–40°C to +105°C) and supports deterministic real-time execution for time-critical control loops in the TM4C1299KCZADT3.

Does the TM4C1299KCZADT3 include an integrated Ethernet PHY?

Yes, the TM4C1299KCZADT3 integrates a full 10/100 Ethernet MAC and PHY in a single die, supporting both MII and RMII interfaces. This eliminates the need for an external PHY IC, simplifies board layout, reduces EMI concerns, and lowers total system cost - a defining feature distinguishing the TM4C1299KCZADT3 from most competing Cortex-M MCUs.

How much SRAM is available on the TM4C1299KCZADT3, and is any of it battery-backed?

The TM4C1299KCZADT3 includes 256 KB of general-purpose SRAM and an additional 2 KB of hibernation-mode SRAM that remains powered during deep-sleep states via VBAT. This battery-backed SRAM retains critical runtime variables, timestamps, and tamper logs - a key capability confirmed in Section 7.3.7 of the TM4C1299KCZADT3 datasheet.

What security features does the TM4C1299KCZADT3 provide for firmware protection?

The TM4C1299KCZADT3 includes hardware-accelerated AES-128 encryption, SHA-1/SHA-256, and MD5 hashing engines, plus flash lock bits and ROM-based secure boot loader. These features enable authenticated firmware updates, encrypted storage, and secure boot verification - all implemented without CPU overhead, as documented in Sections 12 and 14 of the TM4C1299KCZADT3 datasheet.

Is the TM4C1299KCZADT3 pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C1299KCZADT3 uses a unique 144-pin LQFP package with specific peripheral pin mappings optimized for its integrated Ethernet PHY and dual CAN interfaces. It is not pin-compatible with earlier TM4C123 or TM4C129x variants such as TM4C1294NCPDT, due to differences in signal routing, power domain allocation, and hibernation pin assignments per the TM4C1299KCZADT3 datasheet Package Diagram (Section 1.3.10).