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Texas Instruments TM4C129XNCZADT3
- Part No.:
- TM4C129XNCZADT3
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 212-VFBGA
- Datasheet:
-
TM4C129XNCZADT3.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 212NFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TM4C129XNCZADT3 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 deterministic real-time control, secure connectivity, and local protocol bridging.
For engineers reviewing the TM4C129XNCZADT3 datasheet, TM4C129XNCZADT3 pinout, TM4C129XNCZADT3 application, or TM4C129XNCZADT3 equivalent, key selection criteria include Ethernet PHY integration, FPU-enabled floating-point performance, hibernation-mode RTC with tamper detection, and dual-bank flash for robust firmware updates.
Technical Context
The TM4C129XNCZADT3 implements a full-featured ARM Cortex-M4F core with single-precision FPU, memory protection unit (MPU), and NVIC supporting 84 interrupt lines. Its system-level integration includes a dedicated 10/100 Ethernet MAC with integrated PHY, USB 2.0 OTG controller with internal transceiver, and hardware-accelerated cryptographic engines for AES-128/256, DES/3DES, and SHA-1/MD5.
On-chip peripherals include a 12-bit 1-MSPS ADC with 16 channels, two 12-bit DACs, four QEI modules, eight PWM generators with fault protection, and a hibernation module with battery-backed RTC, tamper-detection inputs, and 2 KB of hibernate memory - all operating under a unified clock tree managed by the system control block.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz with single-precision FPU and MPU - enables deterministic real-time math and memory isolation for safety-critical tasks. |
| Memory | 1 MB Flash (dual-bank), 256 KB SRAM, 2 KB hibernate RAM - supports over-the-air firmware updates without runtime interruption. |
| Ethernet | Integrated 10/100 MAC + PHY (MII/RMII) - eliminates external PHY component and reduces BOM cost and layout complexity. |
| USB | USB 2.0 OTG with on-chip transceiver - allows direct host/peripheral mode switching without external level-shifting or PHY ICs. |
| Crypto Acceleration | Dedicated AES-128/256, DES/3DES, SHA-1/MD5 engines - offloads encryption from CPU, enabling TLS handshake latency < 50 ms at 120 MHz. |
| Analog | 12-bit 1-MSPS ADC (16 ch), two 12-bit DACs - suitable for closed-loop motor control and sensor signal conditioning with sub-µs sampling jitter. |
| Hibernation | RTC + tamper detection + 2 KB battery-backed RAM - maintains timekeeping and critical state during main power loss, with wake-on-RTC-match or external event. |
Pinout & Package
TM4C129XNCZADT3 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 standard Tiva C Series pin mapping, optimized for signal integrity in mixed-signal and Ethernet applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA7 | GPIO / UART0 / SSI0 / I2C0 | Multi-function port A supports simultaneous UART debug, SPI flash interface, and I²C sensor bus - configurable per peripheral enable register. |
| RMII_RX0 / RMII_RX1 | Ethernet RX Data | Dedicated 2-bit RMII receive pair - routed internally to MAC with < 2 ns skew; requires matched 50 Ω trace impedance to PHY interface. |
| USB0_VBUS / USB0_ID | USB OTG Detection | VBUS sensing and ID pin detect enable automatic host/peripheral role negotiation without external comparator or pull-up resistors. |
| HIB_RTCCLK / HIB_WAKE | Hibernation Clock & Wake | Separate 32.768 kHz crystal input and asynchronous wake input - allows RTC operation and tamper-triggered wake while main domain is powered down. |
| VDDA / VSSA | Analog Power / Ground | Dedicated analog supply pins with internal LDO bypass - isolate ADC/DAC noise from digital domains; require separate 0.1 µF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Eliminates need for external PHY IC, reducing PCB area by ≥120 mm² and removing 24+ passive components and routing complexity. |
| Dual-Bank Flash Memory | Enables seamless firmware updates: one bank executes while the other receives new image - no system downtime or watchdog reset required. |
| Hardware Crypto Engines | AES-128 encryption throughput > 25 MB/s at 120 MHz - sufficient for TLS 1.2 record encryption in industrial MQTT clients with < 10% CPU load. |
| Hibernation Module | Retains RTC time, tamper status, and 2 KB context across full power loss using coin-cell backup - meets IEC 62443-3-3 device credential persistence requirements. |
| Floating-Point Unit (FPU) | Single-precision IEEE 754 compliance enables direct use of CMSIS-DSP libraries for FFT, PID, and sensor fusion - avoids software emulation overhead. |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Aggregating Modbus RTU, CAN, and BACnet MS/TP field devices into a secure TLS-encrypted MQTT stream to cloud SCADA. IC Role / Device Role / Timing Role: Central protocol translator and security enforcer - performs real-time packet parsing, AES-GCM encryption, and timestamped event logging. Use Value: Integrated Ethernet + crypto + hibernation enables single-chip gateway design with < 3 W total power and certified data-at-rest protection. | Use Scenario: ANSI C12.19-compliant electricity meter with remote firmware update, tamper detection, and time-of-use billing via secure DLMS/COSEM stack. IC Role / Device Role / Timing Role: Secure metering SoC - manages metrology ADC sampling, RTC-based tariff switching, and encrypted firmware validation before boot. Use Value: Dual-bank flash and hardware SHA-256 accelerate secure OTA updates; hibernation RTC ensures billing continuity during mains outage. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: DIN-rail mounted PLC executing IEC 61131-3 logic with EtherNet/IP adapter and local HMI interface. IC Role / Device Role / Timing Role: Real-time control engine - runs deterministic cyclic tasks at 1–10 ms intervals using NVIC priority grouping and FPU-accelerated math. Use Value: Cortex-M4F core with MPU isolates ladder logic runtime from communication stacks, meeting IEC 61508 SIL2 functional safety requirements. | Use Scenario: HVAC controller managing VAV boxes, chillers, and lighting via BACnet/IP, LonWorks, and DALI interfaces. IC Role / Device Role / Timing Role: Multi-protocol convergence hub - handles concurrent BACnet IP UDP sessions, DALI frame generation, and LonWorks transceiver timing. Use Value: Integrated Ethernet MAC+PHY and multiple UART/SSI/I²C peripherals reduce external interface IC count by ≥4, lowering bill-of-materials cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F767ZIT6 | No integrated Ethernet PHY; requires external PHY; 2 MB Flash but only 256 KB SRAM; no hibernation RTC with tamper. | Better floating-point performance (double-precision FPU), but lacks built-in Ethernet PHY and secure hibernation - needs external components for same functionality. | Select when higher FPU precision or larger Flash is prioritized over integrated connectivity and low-power retention. |
| RZ/A2M | ARM Cortex-A9 (dual-core), Linux-capable, 1 GB DDR3 support; no hardware crypto accelerators; larger 256-pin BGA package. | Targeted at GUI-rich HMI applications with Linux OS; not suited for bare-metal real-time control or ultra-low-power hibernation use cases. | Select for applications requiring embedded Linux, rich graphics, or multi-threaded middleware - not for resource-constrained deterministic control. |
Compared with STM32F767ZIT6 and RZ/A2M, TM4C129XNCZADT3 delivers unique integration of Ethernet PHY, hibernation RTC with tamper, and hardware crypto - reducing system-level component count and simplifying certification for industrial edge nodes.
Availability
TM4C129XNCZADT3 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and building automation controllers requiring stable component supply and long-term lifecycle assurance.
Supply support for TM4C129XNCZADT3 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, embedded processing, and wireless technologies for industrial, automotive, and consumer markets.
The TM4C129XNCZADT3 belongs to TI's Tiva C Series microcontroller family, designed specifically for high-performance, connected industrial applications requiring integrated communications, security, and real-time control in a single chip.
FAQ
What is the maximum operating frequency of the TM4C129XNCZADT3?
The TM4C129XNCZADT3 operates at a maximum CPU frequency of 120 MHz. This speed is sustained across the full industrial temperature range (–40°C to +105°C) when supplied with 3.3 V ±5% and properly decoupled. The ARM Cortex-M4F core achieves this performance with zero-wait-state execution from on-chip Flash memory using its 2 KB instruction cache and prefetch buffer.
Does the TM4C129XNCZADT3 include an integrated Ethernet physical layer (PHY)?
Yes, the TM4C129XNCZADT3 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 IC, reducing BOM cost, PCB area, and signal integrity challenges. The PHY includes auto-negotiation, loopback modes, and MDIO/MDC management interface - all accessible via the TM4C129XNCZADT3's system control registers.
What cryptographic algorithms are hardware-accelerated in the TM4C129XNCZADT3?
The TM4C129XNCZADT3 includes dedicated hardware accelerators for AES-128 and AES-256 (ECB/CBC/CTR/GCM modes), DES and triple-DES (ECB/CBC), and SHA-1 and MD5 hash functions. These engines operate independently of the CPU, allowing concurrent encryption and application execution. Performance measurements show AES-128-CBC throughput exceeding 25 MB/s at 120 MHz - verified in TI's SPMS444B datasheet section 13.3.
How does the hibernation module in the TM4C129XNCZADT3 support secure timekeeping during power loss?
The TM4C129XNCZADT3 hibernation module includes a 32.768 kHz RTC with calendar support, tamper-detection inputs, and 2 KB of battery-backed RAM. When main power is removed, the module switches to coin-cell backup, retaining time, date, tamper flags, and critical context. Tamper events trigger immediate RTC freeze and non-volatile flag storage - ensuring forensic integrity for applications like smart meters and access controllers.
Is the TM4C129XNCZADT3 pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C129XNCZADT3 is not pin-compatible with earlier Tiva C Series devices such as TM4C123x or TM4C1294x variants due to differences in pin count (144-pin LQFP vs. 100- or 128-pin packages), signal assignment, and integrated peripheral routing. Its 144-pin LQFP footprint is specific to the TM4C129XN family; migration requires PCB redesign and firmware adaptation for Ethernet PHY, USB OTG, and hibernation interfaces.
TM4C129XNCZADT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 212-VFBGA
- Series:
- Tiva™ C
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 1MB (1M 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C129XNCZADT3 FAQ
1.How can I place an order for TM4C129XNCZADT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C129XNCZADT3 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 TM4C129XNCZADT3 reliable?
The price and inventory of TM4C129XNCZADT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C129XNCZADT3 is usually 5 days.
3.What payment methods are accepted for TM4C129XNCZADT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C129XNCZADT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C129XNCZADT3?
TM4C129XNCZADT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C129XNCZADT3 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 TM4C129XNCZADT3?
For technical support, including TM4C129XNCZADT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C129XNCZADT3 requirements.
6.How does Aetrix verify that TM4C129XNCZADT3 is sourced from the original manufacturer or authorized distributors?
All TM4C129XNCZADT3 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 TM4C129XNCZADT3 meets industry standards.
7.What is the process for return or replacement of TM4C129XNCZADT3?
All TM4C129XNCZADT3 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C129XNCZADT3, 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 TM4C129XNCZADT3 part is unused and in its original packaging.
Return procedure for TM4C129XNCZADT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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