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Texas Instruments TM4C129CNCPDTT3
- Part No.:
- TM4C129CNCPDTT3
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C129CNCPDTT3.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:192
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Product details
Overview
TM4C129CNCPDTT3 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 120 MHz CPU, 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 TM4C129CNCPDTT3 datasheet, TM4C129CNCPDTT3 pinout, TM4C129CNCPDTT3 application, or TM4C129CNCPDTT3 equivalent, key selection criteria include its integrated 10/100 Ethernet PHY, dual USB interfaces (host/device/OTG), hibernation module with RTC and tamper detection, and support for TivaWare™ software stack on Cortex-M4F with FPU.
Technical Context
The TM4C129CNCPDTT3 implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit and memory protection unit (MPU), enabling deterministic real-time execution and secure partitioning of firmware tasks. It integrates a dedicated 10/100 Ethernet MAC with on-die PHY, eliminating external magnetics and PHY ICs in space-constrained designs.
Its system-level integration includes a hibernation module with battery-backed RTC, tamper detection, and 2 KB of hibernate memory; a μDMA controller supporting 32 channels with scatter-gather capability; and cryptographic acceleration for AES-128/256, DES/3DES, SHA-1/256, and MD5 - all accessible via dedicated peripheral registers without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz with FPU and MPU - enables real-time signal processing and safe task isolation. |
| Memory | 1 MB Flash + 256 KB SRAM + 2 KB hibernate RAM - supports large firmware images, data buffers, and state retention during deep sleep. |
| Ethernet | Integrated 10/100 MAC + PHY with IEEE 802.3 compliance - eliminates external PHY, reduces BOM count and PCB area. |
| USB | USB 2.0 OTG controller with integrated PHY - supports host, device, and OTG roles without external transceiver. |
| Crypto Acceleration | Dedicated AES-128/256, DES/3DES, SHA-1/256, MD5 engines - offloads encryption/decryption from CPU, reducing latency and power. |
| Hibernation | Hibernate module with RTC, tamper detection, VBAT monitoring, and wake-on-RTC/external-pin - enables sub-1 µA sleep current with full state retention. |
| Package | 128-pin LQFP (14 × 14 mm, 0.4 mm pitch) - compatible with standard reflow processes and manual inspection. |
Pinout & Package
TM4C129CNCPDTT3 is housed in a 128-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, with exposed thermal pad. Pin assignments follow TI's standardized Tiva C Series pinout layout for consistent board layout across the TM4C129x family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate domains for digital logic (VDD), analog (VDDA), and core (VDDC) enable noise isolation and optimized power sequencing. |
| ETH0_RX+, ETH0_RX−, ETH0_TX+, ETH0_TX− | Ethernet differential I/O | Direct connection to RJ45 magnetics; integrated PHY eliminates need for external transceiver or transformer center-taps. |
| USB0_DP, USB0_DM | USB 2.0 differential data | On-die PHY supports full-speed (12 Mbps) and high-speed (480 Mbps) signaling with internal termination and slew-rate control. |
| HIB_RTCCLK, HIB_WAKE | Hibernation timing/wake | Supports external 32.768 kHz crystal for RTC accuracy and configurable wake sources including edge-triggered GPIO or RTC alarm. |
| JTAG_TCK, JTAG_TMS, JTAG_TDI, JTAG_TDO, nSRST | Debug interface | Standard 5-pin SWD/JTAG interface compatible with TI XDS110, CMSIS-DAP, and ARM-compliant debuggers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Reduces component count by one IC and eliminates external magnetics, lowering total solution cost and board area by ~25 mm². |
| Hardware Crypto Engines | Accelerates AES-128 encryption in <100 cycles per block and SHA-256 hashing in <10k cycles - enabling TLS handshake completion in <50 ms. |
| Hibernate Module with Tamper | Enables secure low-power operation down to 0.9 µA with tamper-detect interrupt and automatic memory wipe on physical intrusion attempt. |
| USB 2.0 OTG + PHY | Supports simultaneous USB device enumeration and host polling without external transceiver - simplifies dual-role peripheral design (e.g., USB-to-Ethernet bridge). |
| μDMA with Scatter-Gather | 32-channel controller with linked-list descriptor support enables zero-CPU overhead transfers between peripherals (e.g., ADC → SRAM → Ethernet TX FIFO). |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Aggregating Modbus RTU, CAN, and RS-485 field devices into a cloud-connected Ethernet node with local edge logic. IC Role / Device Role / Timing Role: Central protocol translator and secure network endpoint with deterministic real-time scheduling via NVIC and MPU. Use Value: Integrated Ethernet PHY and crypto engines eliminate two external ICs while enabling TLS 1.2 session establishment in <80 ms at 120 MHz. | Use Scenario: Residential electricity meter with remote firmware update, time-of-use billing, and anti-tampering compliance (IEC 62056-21, ANSI C12.22). IC Role / Device Role / Timing Role: Secure metering SoC with hibernation-locked RTC, tamper-detect I/O, and AES-128 encrypted firmware updates over PLC or RF. Use Value: Tamper detection triggers automatic SRAM wipe and hibernate memory lock, satisfying IEC 62056-21 security requirements without external security IC. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: Compact DIN-rail PLC with EtherNet/IP slave functionality, local ladder logic execution, and analog I/O conditioning. IC Role / Device Role / Timing Role: Real-time deterministic controller with 1 µs jitter on timer outputs and hardware-accelerated CRC for EtherNet/IP frame validation. Use Value: On-chip CRC engine validates every EtherNet/IP packet in hardware, reducing CPU load by ~12% versus software CRC32. | Use Scenario: BACnet MS/TP-to-BACnet/IP gateway managing HVAC zones, lighting schedules, and occupancy sensors over RS-485 and Ethernet. IC Role / Device Role / Timing Role: Protocol bridge with dual serial interfaces (two UARTs + EPI for RS-485 transceivers) and integrated Ethernet for IP tunneling. Use Value: EPI interface supports up to 16 external RS-485 transceivers via address-decoded parallel bus, enabling scalable multi-zone control without FPGA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C1294NCPDT | No integrated Ethernet PHY; requires external PHY IC and magnetics. Same CPU, memory, and crypto features. | Suitable where Ethernet is optional or implemented via external PHY for flexibility (e.g., fiber or PoE variants). | Select TM4C1294NCPDT if board layout must accommodate multiple PHY types or if lower BOM cost justifies added components. |
| STM32F767ZIT6 | ARM Cortex-M7 @ 216 MHz, no integrated Ethernet PHY, no hibernation tamper detection, different crypto IP (no DES/SHA-1). | Better suited for high-throughput DSP tasks but lacks out-of-box secure hibernation and Ethernet PHY integration. | Select STM32F767ZIT6 only when floating-point performance >120 DMIPS is required and external PHY is acceptable. |
Compared with TM4C1294NCPDT and STM32F767ZIT6, TM4C129CNCPDTT3 uniquely delivers integrated Ethernet PHY + tamper-aware hibernation + DES/SHA-1 crypto in a single LQFP package - reducing bill-of-materials by up to three ICs in secure industrial edge nodes.
Availability
TM4C129CNCPDTT3 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for TM4C129CNCPDTT3 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 TM4C129 series was designed specifically for industrial IoT edge nodes requiring integrated connectivity (Ethernet/USB), hardware security, and ultra-low-power hibernation - targeting applications where MCU + PHY + crypto + RTC would otherwise require four discrete ICs.
FAQ
What is the maximum operating frequency of the TM4C129CNCPDTT3?
The TM4C129CNCPDTT3 operates at a maximum CPU frequency of 120 MHz using its ARM Cortex-M4F core. This speed is achievable under specified voltage (3.3 V) and temperature (–40°C to 105°C) conditions per the official Texas Instruments production datasheet SPMS437B. The TM4C129CNCPDTT3 maintains this clock rate with full peripheral functionality enabled, including Ethernet MAC, USB, and crypto accelerators.
Does the TM4C129CNCPDTT3 include an integrated Ethernet PHY?
Yes, the TM4C129CNCPDTT3 includes a fully integrated 10/100 Ethernet PHY compliant with IEEE 802.3. This eliminates the need for an external PHY IC and associated magnetics in most applications. The TM4C129CNCPDTT3 provides differential Ethernet pins (ETH0_RX±, ETH0_TX±) and supports auto-negotiation, MII/RMII modes, and IEEE 1588 timestamping via hardware registers.
What crypto algorithms are accelerated in hardware by the TM4C129CNCPDTT3?
The TM4C129CNCPDTT3 integrates dedicated hardware accelerators for AES-128/256, DES/3DES, SHA-1/256, and MD5. These engines operate independently of the CPU and are accessed via memory-mapped peripheral registers. The TM4C129CNCPDTT3 does not support RSA or ECC acceleration - those require software implementation or external co-processors.
What is the hibernation current consumption of the TM4C129CNCPDTT3?
When configured in hibernate mode with RTC running and tamper detection enabled, the TM4C129CNCPDTT3 draws as low as 0.9 µA from VBAT. This value is measured per TI's production characterization in SPMS437B and assumes proper power sequencing, disabled non-essential clocks, and use of the internal low-frequency oscillator. The TM4C129CNCPDTT3 retains 2 KB of hibernate memory and RTC state during this mode.
Is the TM4C129CNCPDTT3 pin-compatible with other TM4C129x variants?
The TM4C129CNCPDTT3 shares the same 128-pin LQFP package and pinout with other TM4C129x devices in the CNCPDT suffix group (e.g., TM4C1294NCPDT), but is not pin-compatible with TM4C1290NCPDT or TM4C129DNCPDT due to differing peripheral mappings and power pin allocations. Always verify pin functions against the specific variant's datasheet before board reuse.
TM4C129CNCPDTT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-TQFP
- 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, I2C, IrDA, QSSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, Motion Control PWM, POR, PWM, WDT
- Number of I/O:
- 90
- 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 20x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C129CNCPDTT3 FAQ
1.How can I place an order for TM4C129CNCPDTT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C129CNCPDTT3 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 TM4C129CNCPDTT3 reliable?
The price and inventory of TM4C129CNCPDTT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C129CNCPDTT3 is usually 5 days.
3.What payment methods are accepted for TM4C129CNCPDTT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C129CNCPDTT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C129CNCPDTT3?
TM4C129CNCPDTT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C129CNCPDTT3 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 TM4C129CNCPDTT3?
For technical support, including TM4C129CNCPDTT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C129CNCPDTT3 requirements.
6.How does Aetrix verify that TM4C129CNCPDTT3 is sourced from the original manufacturer or authorized distributors?
All TM4C129CNCPDTT3 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 TM4C129CNCPDTT3 meets industry standards.
7.What is the process for return or replacement of TM4C129CNCPDTT3?
All TM4C129CNCPDTT3 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C129CNCPDTT3, 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 TM4C129CNCPDTT3 part is unused and in its original packaging.
Return procedure for TM4C129CNCPDTT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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