Texas Instruments TM4C129XKCZADI3R
- Part No.:
- TM4C129XKCZADI3R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 212-VFBGA
- Datasheet:
-
TM4C129XKCZADI3R.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 212NFBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TM4C129XKCZADI3R 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 TM4C129XKCZADI3R datasheet, TM4C129XKCZADI3R pinout, TM4C129XKCZADI3R application, or TM4C129XKCZADI3R equivalent, key selection criteria include Ethernet PHY integration, FPU-enabled floating-point performance, hibernation-mode RTC with battery-backed memory, and dual-role USB support for field-upgradable edge nodes.
Technical Context
The TM4C129XKCZADI3R implements a full-featured ARM Cortex-M4F core with single-precision FPU, MPU, and NVIC supporting up to 111 interrupt lines. Its system-level integration includes a dedicated 10/100 Ethernet MAC with integrated PHY, eliminating external magnetics in many designs.
Hardware cryptographic acceleration covers AES-128/192/256 (ECB/CBC/CTR/GCM), DES/Triple-DES, and SHA-1/SHA-224/SHA-256/MD5 - all operating independently of the CPU to enable concurrent encryption and real-time control tasks without latency penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz with single-precision FPU and 32-bit SIMD instructions |
| Memory | 1 MB on-chip Flash (with ECC), 256 KB SRAM (with parity), 6 KB EEPROM |
| Connectivity | Integrated 10/100 Ethernet MAC + PHY, USB 2.0 OTG (host/device), 8x UART, 4x SPI, 4x I²C |
| Crypto Acceleration | Dedicated AES/DES/SHA/MD5 engines enabling <10 µs AES-128 block encryption without CPU load |
| Power Modes | Multiple low-power states including Hibernation mode with RTC, tamper detection, and 1 KB battery-backed SRAM |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch) with thermal pad, rated for –40°C to +105°C industrial temperature range |
Pinout & Package
TM4C129XKCZADI3R is housed in a 144-pin LQFP package (PZ suffix) with exposed thermal pad. Pinout supports full multiplexing across GPIO, analog, and high-speed peripherals including Ethernet RMII, USB D+/D–, and EPI data/address bus.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power / ground | Separate 3.3 V supply domain for ADC, analog comparators, and internal voltage reference |
| RMII_RX0 / RMII_RX1 | Ethernet receive data | Direct connection to Ethernet PHY pins; no external magnetics required in RMII mode |
| USB0_DP / USB0_DM | USB 2.0 differential pair | On-chip transceiver supports full-speed (12 Mbps) and high-speed (480 Mbps) with internal termination |
| HIB_RTC_XTAL | Hibernation crystal input | Accepts 32.768 kHz crystal for RTC operation during hibernation with battery backup |
| GPIO_P[0]–P[15] | General-purpose I/O | Configurable as digital I/O, timer capture, PWM output, or peripheral function via AFSEL register |
Key Features
| Feature | Design Value |
|---|---|
| Ethernet MAC + PHY integration | Eliminates external PHY chip and magnetics, reducing BOM cost and PCB area by ~35% in gateway designs |
| Hardware AES-GCM acceleration | Enables authenticated encryption for secure OTA firmware updates with sub-millisecond latency per 128-bit block |
| Hibernation module with RTC | Retains timekeeping and 1 KB SRAM state on coin-cell power (<1.5 µA typical), enabling long-term sensor logging |
| Floating-point unit (FPU) | Accelerates motor control algorithms (e.g., Clarke/Park transforms) and sensor fusion with IEEE 754 compliance |
| μDMA with 32-channel controller | Offloads CPU from high-bandwidth transfers (e.g., Ethernet packet buffering, ADC streaming) with scatter-gather support |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Aggregating Modbus RTU, CAN, and RS-485 field devices into cloud-connected MQTT endpoints. IC Role / Device Role / Timing Role: Central protocol translator and TLS-secured data concentrator with deterministic Ethernet/USB timing. Use Value: Integrated Ethernet PHY and hardware crypto reduce latency for encrypted meter reading uploads by >40% vs. discrete PHY + MCU solutions. | Use Scenario: Two-way communication with utility AMI infrastructure using DLMS/COSEM over PRIME or G3-PLC backhaul. IC Role / Device Role / Timing Role: Secure host controller managing PLC modem interface, tamper detection, and time-synchronized billing logs. Use Value: Hibernation RTC with battery-backed memory ensures accurate time-stamping of energy events during mains outage. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: Replacing legacy 8051-based controllers in DIN-rail mounted I/O modules with motion profiling and safety monitoring. IC Role / Device Role / Timing Role: Real-time motion engine executing PID loops and trajectory generation at 1 kHz update rate. Use Value: Cortex-M4F FPU and μDMA enable simultaneous servo control, EtherCAT slave processing, and web HMI rendering. | Use Scenario: HVAC zone controller integrating BACnet/IP, LonWorks, and KNX interfaces in a single device. IC Role / Device Role / Timing Role: Multi-protocol network bridge with deterministic scheduling for time-critical actuator commands. Use Value: Dual-role USB supports field technician firmware updates via USB stick while maintaining live BACnet/IP traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H743VIT6 | No integrated Ethernet PHY; requires external PHY and magnetics; higher clock (480 MHz) but no hibernation RTC | Better suited for compute-intensive vision preprocessing; lacks battery-backed hibernation memory | Select when floating-point throughput >1 GFLOPS is required and Ethernet is implemented via external PHY |
| RA6M5LJBGFP#AA0 | ARM Cortex-M33 core; TrustZone security; no integrated Ethernet PHY; 2 MB Flash, 1 MB SRAM | Stronger security isolation for certified industrial firmware; no hardware AES-GCM acceleration | Select for IEC 62443-compliant systems where secure boot and runtime attestation outweigh PHY integration needs |
Compared with STM32H743VIT6 and RA6M5LJBGFP#AA0, the TM4C129XKCZADI3R uniquely delivers production-ready Ethernet PHY integration, hibernation-mode RTC with tamper detection, and hardware-accelerated AES-GCM - making it optimal for cost-sensitive, space-constrained industrial gateways requiring zero-latency secure communications.
Availability
TM4C129XKCZADI3R is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and building automation controllers requiring stable component supply across extended product lifecycles.
Supply support for TM4C129XKCZADI3R 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, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.
The TM4C129XKCZADI3R belongs to TI's Tiva C Series - designed specifically for real-time industrial connectivity, combining high-performance ARM Cortex-M4F cores with integrated communication peripherals and hardware security accelerators.
FAQ
What is the maximum operating frequency of the TM4C129XKCZADI3R?
The TM4C129XKCZADI3R operates at a maximum system clock frequency of 120 MHz, derived from its internal PLL with support for multiple clock sources including external crystals, internal oscillators, and USB SOF synchronization. This frequency enables real-time execution of complex control algorithms and high-throughput Ethernet packet handling without external clocking components.
Does the TM4C129XKCZADI3R include an integrated Ethernet physical layer (PHY)?
Yes, the TM4C129XKCZADI3R integrates a full 10/100 Ethernet PHY compliant with IEEE 802.3u, supporting both MII and RMII interfaces. This eliminates the need for an external PHY chip and associated magnetics in most industrial Ethernet applications, simplifying layout and reducing bill-of-materials cost.
What hardware cryptographic functions does the TM4C129XKCZADI3R support?
The TM4C129XKCZADI3R includes dedicated hardware accelerators for AES-128/192/256 (ECB/CBC/CTR/GCM), DES/Triple-DES, and SHA-1/SHA-224/SHA-256/MD5. These operate independently of the CPU, enabling concurrent encryption and real-time control tasks - critical for secure OTA firmware updates in the TM4C129XKCZADI3R.
What low-power modes are available on the TM4C129XKCZADI3R?
The TM4C129XKCZADI3R supports six low-power modes: Sleep, Deep-Sleep, Hibernate, LP-Deep-Sleep, LP-Hibernate, and Shutdown. The Hibernate mode retains RTC operation and 1 KB of SRAM using a coin-cell battery at <1.5 µA, enabling long-duration data logging and time-stamped event capture without main power.
Is the TM4C129XKCZADI3R pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C129XKCZADI3R uses a unique 144-pin LQFP package with specific signal assignments for its integrated Ethernet PHY and USB OTG transceiver. While software compatibility exists within the TivaWare SDK, pin-to-pin replacement with other TM4C123 or TM4C129 variants is not supported due to differing peripheral mappings and package layouts.
TM4C129XKCZADI3R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 212-VFBGA
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, QSSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, Motion Control PWM, POR, PWM, WDT
- Number of I/O:
- 140
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 6K x 8
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.97V ~ 3.63V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C129XKCZADI3R FAQ
1.How can I place an order for TM4C129XKCZADI3R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C129XKCZADI3R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TM4C129XKCZADI3R reliable?
The price and inventory of TM4C129XKCZADI3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C129XKCZADI3R is usually 5 days.
3.What payment methods are accepted for TM4C129XKCZADI3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C129XKCZADI3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C129XKCZADI3R?
TM4C129XKCZADI3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C129XKCZADI3R order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TM4C129XKCZADI3R?
For technical support, including TM4C129XKCZADI3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C129XKCZADI3R requirements.
6.How does Aetrix verify that TM4C129XKCZADI3R is sourced from the original manufacturer or authorized distributors?
All TM4C129XKCZADI3R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TM4C129XKCZADI3R meets industry standards.
7.What is the process for return or replacement of TM4C129XKCZADI3R?
All TM4C129XKCZADI3R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C129XKCZADI3R, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TM4C129XKCZADI3R part is unused and in its original packaging.
Return procedure for TM4C129XKCZADI3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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