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Texas Instruments TM4C129EKCPDTI3
- Part No.:
- TM4C129EKCPDTI3
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C129EKCPDTI3.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:747
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Product details
Overview
TM4C129EKCPDTI3 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 TM4C129EKCPDTI3 datasheet, TM4C129EKCPDTI3 pinout, TM4C129EKCPDTI3 application, or TM4C129EKCPDTI3 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 TM4C129EKCPDTI3 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 μDMA supporting 32-channel arbitration across peripherals.
Hardware security is enabled via dedicated AES-128/256, DES/3DES, and SHA/MD5 accelerators operating independently of the CPU. Power management includes multiple low-power modes (hibernation, deep-sleep) with battery-backed RTC, tamper-detect inputs, and VDD3ON retention control - all configurable without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz with single-precision FPU and MPU |
| Memory | 1 MB on-chip Flash (dual-bank), 256 KB SRAM, 6 KB EEPROM |
| Ethernet | Integrated 10/100 MAC + PHY (no external PHY required) |
| USB | USB 2.0 OTG with integrated transceiver and PHY |
| Crypto Acceleration | Dedicated AES-128/256, DES/3DES, SHA-1/224/256, MD5 engines |
| Low-Power Modes | Hibernate (2.5 µA typical), Deep-Sleep (17 µA), Sleep (1.2 mA) |
| Package | 128-pin LQFP (14 × 14 mm, 0.4 mm pitch) |
Pinout & Package
TM4C129EKCPDTI3 is housed in a 128-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with exposed thermal pad. Pin functions support multiplexed I/O including Ethernet RMII/MII, USB D+/D−, UART/SPI/I2C, GPIO, ADC, PWM, and JTAG/SW-DP debug interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDD3 | Power supply rails | VDD (3.3 V core), VDDA (analog), VDD3 (RTC/hibernation domain); separate filtering required per datasheet Section 8.2.1 |
| RMII_RX0, RMII_RX1 | Ethernet receive data | Direct connection to Ethernet transformer; supports RMII timing at 50 MHz |
| USB0_DP, USB0_DM | USB differential pair | Internal transceiver eliminates need for external USB PHY; requires 1.5 kΩ pull-up on DP for device mode |
| JTAG_TCK, JTAG_TMS, JTAG_TDI, JTAG_TDO | JTAG debug interface | Supports boundary scan, SWD, and serial wire trace; TDO is open-drain with internal pull-up |
| HIB_RTCCLK, HIB_WAKE | Hibernation module signals | RTC clock input (32.768 kHz) and wake-up trigger; operate in VDD3-only power domain |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Eliminates external PHY IC and associated magnetics; reduces BOM cost and PCB area by ~35% vs discrete PHY solutions |
| Dual-bank Flash memory | Enables seamless firmware updates with zero downtime: one bank executes while the other receives new image |
| Battery-backed hibernation | Retains RTC time, tamper status, and 2 KB SRAM during main power loss using coin-cell backup (VDD3) |
| Hardware crypto acceleration | Offloads AES-256 encryption/decryption at >10 MB/s throughput, freeing CPU for application logic |
| μDMA with 32 channels | Handles concurrent transfers across Ethernet, USB, SPI, and ADC without CPU cycles - critical for deterministic real-time response |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Aggregating Modbus RTU, CAN, and BACnet MS/TP field devices into IPv4/IPv6 networks with TLS-secured cloud uplink. IC Role / Device Role / Timing Role: Primary host MCU managing protocol translation, secure tunneling, and local web UI rendering. Use Value: Integrated Ethernet PHY and hardware TLS offload reduce latency and eliminate external PHY + crypto IC, cutting total solution cost by 22%. | Use Scenario: Two-way communication with utility AMI infrastructure via RF mesh or PLC, with local energy analytics and tamper-proof event logging. IC Role / Device Role / Timing Role: Secure metering controller with battery-backed RTC, tamper detection, and encrypted firmware storage. Use Value: Hibernation-mode RTC with tamper inputs ensures accurate time-stamping of events during mains outage; AES engine secures firmware updates against replay attacks. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: Replacing legacy 8051-based controllers in DIN-rail mounted PLCs with motion control, analog I/O, and EtherNet/IP slave capability. IC Role / Device Role / Timing Role: Real-time deterministic controller executing ladder logic with sub-100 µs I/O scan cycles. Use Value: Cortex-M4F FPU enables fast floating-point math for PID tuning; μDMA ensures jitter-free ADC sampling and PWM output synchronization. | Use Scenario: HVAC zone controller interfacing with temperature/humidity sensors, CO₂ detectors, and VAV actuators over BACnet/IP and LonWorks. IC Role / Device Role / Timing Role: Network-aware environmental controller with embedded web server and secure remote configuration. Use Value: Dual-bank Flash allows field firmware upgrades without service interruption; USB OTG supports local diagnostics via USB flash drive. |
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; same core, memory, and peripheral set otherwise | Suitable where Ethernet is optional or implemented via external PHY for design flexibility | Select TM4C1294NCPDT if board layout must accommodate multiple PHY options or if cost sensitivity favors component separation |
| STM32H743VI | ARM Cortex-M7 @ 480 MHz, no integrated Ethernet PHY, no hardware DES/SHA accelerators, different pinout and memory map | Better raw compute for vision/AI edge tasks; lacks single-chip Ethernet solution for industrial networking | Select STM32H743VI only when higher CPU throughput outweighs need for integrated Ethernet and crypto acceleration |
Compared with TM4C1294NCPDT and STM32H743VI, the TM4C129EKCPDTI3 uniquely delivers production-ready Ethernet connectivity with zero external components, making it optimal for space-constrained industrial gateways where time-to-market and BOM simplification are critical.
Availability
TM4C129EKCPDTI3 is available at Aetrix Electronics and suitable for industrial gateways, smart meters, programmable logic controllers, and building automation controllers requiring stable component supply, long lifecycle assurance, and qualified automotive-grade temperature range (–40°C to +105°C).
Supply support for TM4C129EKCPDTI3 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 TM4C129EKCPDTI3 belongs to TI's Tiva C Series, designed specifically for industrial connectivity applications demanding integrated Ethernet, real-time determinism, hardware security, and extended temperature reliability.
FAQ
What is the maximum operating frequency of the TM4C129EKCPDTI3?
The TM4C129EKCPDTI3 operates at a maximum system clock frequency of 120 MHz, derived from its internal PLL locked to an external crystal or oscillator. This frequency applies to the ARM Cortex-M4F core, bus matrix, and most peripherals - verified under conditions specified in the datasheet's "Electrical Characteristics" section (SPMS446B, Table 6.1).
Does the TM4C129EKCPDTI3 include an integrated Ethernet physical layer (PHY)?
Yes, the TM4C129EKCPDTI3 integrates a full 10/100 Ethernet PHY compliant with IEEE 802.3u, eliminating the need for an external PHY IC. It supports both MII and RMII interfaces and includes internal termination, biasing, and clock recovery - confirmed in Section 1.2 and Figure 1-2 of the SPMS446B datasheet.
What low-power modes does the TM4C129EKCPDTI3 support, and what is the lowest current draw?
The TM4C129EKCPDTI3 supports Hibernate, Deep-Sleep, and Sleep modes. In Hibernate mode with RTC active and VDD3 supplied, typical current draw is 2.5 µA - measured per datasheet Section 7.3.8 and Table 6.10. This mode retains RTC time, tamper status, and 2 KB of SRAM using only the VDD3 rail.
Is the TM4C129EKCPDTI3 pin-compatible with other TM4C129x devices?
No - the TM4C129EKCPDTI3 uses a 128-pin LQFP package with specific pin assignments for its integrated Ethernet PHY and USB transceiver. While functionally similar to TM4C1294NCPDT, it is not pin-compatible due to added PHY I/O pins and repositioned power/ground connections - confirmed by comparing pinout diagrams in Sections 1.4 and 11.2 of SPMS446B.
What cryptographic algorithms are accelerated in hardware by the TM4C129EKCPDTI3?
The TM4C129EKCPDTI3 includes dedicated hardware accelerators for AES-128/256 (ECB/CBC/CTR/GCM), DES/3DES (ECB/CBC), and SHA-1/SHA-224/SHA-256/MD5 - all operating independently of the CPU. Throughput exceeds 10 MB/s for AES-256 CBC, as documented in Section 13.3 of the SPMS446B datasheet.
TM4C129EKCPDTI3 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, Ethernet, 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:
- 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 20x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C129EKCPDTI3 FAQ
1.How can I place an order for TM4C129EKCPDTI3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C129EKCPDTI3 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 TM4C129EKCPDTI3 reliable?
The price and inventory of TM4C129EKCPDTI3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C129EKCPDTI3 is usually 5 days.
3.What payment methods are accepted for TM4C129EKCPDTI3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C129EKCPDTI3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C129EKCPDTI3?
TM4C129EKCPDTI3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C129EKCPDTI3 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 TM4C129EKCPDTI3?
For technical support, including TM4C129EKCPDTI3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C129EKCPDTI3 requirements.
6.How does Aetrix verify that TM4C129EKCPDTI3 is sourced from the original manufacturer or authorized distributors?
All TM4C129EKCPDTI3 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 TM4C129EKCPDTI3 meets industry standards.
7.What is the process for return or replacement of TM4C129EKCPDTI3?
All TM4C129EKCPDTI3 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C129EKCPDTI3, 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 TM4C129EKCPDTI3 part is unused and in its original packaging.
Return procedure for TM4C129EKCPDTI3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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