My Inquiry
My Account
Texas Instruments TM4C129EKCPDTI3R
- Part No.:
- TM4C129EKCPDTI3R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C129EKCPDTI3R.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,969
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TM4C129EKCPDTI3R 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 and secure firmware updates.
For engineers reviewing the TM4C129EKCPDTI3R datasheet, TM4C129EKCPDTI3R pinout, TM4C129EKCPDTI3R application, or TM4C129EKCPDTI3R equivalent, key selection criteria include integrated 10/100 Ethernet PHY, dual USB interfaces (OTG + device), deterministic real-time performance via FPU and NVIC, and hardware-accelerated cryptographic operations for secure boot and OTA updates.
Technical Context
The TM4C129EKCPDTI3R implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit and 16-stage pipeline, supporting Thumb-2 instruction set and deterministic interrupt latency down to 12 cycles. Its system-level integration includes a dedicated 32-bit bus matrix, configurable memory protection unit (MPU), and hibernation module with RTC and tamper detection.
Peripheral subsystems are tightly coupled: the μDMA controller supports 32-channel arbitration with peripheral-specific channel mapping; the EPI interface enables SDRAM, NOR flash, and FPGA interfacing at up to 60 MHz; and the cryptographic acceleration block operates independently of the CPU to offload AES-128/256, DES/3DES, and SHA-1/256 operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz - delivers deterministic real-time control with hardware FPU for sensor fusion or motor control math. |
| Memory | 1 MB Flash + 256 KB SRAM - sufficient for dual-bank firmware images and large protocol stacks (TCP/IP, USB, TLS). |
| Ethernet | Integrated 10/100 MAC + PHY - eliminates external PHY IC and reduces BOM cost and board space in networked edge devices. |
| USB | USB 2.0 OTG + USB Device - enables simultaneous host-peripheral operation (e.g., USB flash drive + HID keyboard) without external transceivers. |
| Crypto Acceleration | AES-128/256, DES/3DES, SHA-1/256 - accelerates TLS handshake, secure boot verification, and encrypted data logging at line rate. |
| Package | 128-pin LQFP (14 × 14 mm, 0.4 mm pitch) - compatible with standard reflow processes and accessible for manual prototyping. |
| Temperature Range | –40°C to +105°C - qualified for extended industrial environments including factory automation and outdoor infrastructure. |
Pinout & Package
TM4C129EKCPDTI3R is housed in a 128-pin LQFP package (package code: CPDT), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are defined per TI SPMS446B datasheet Rev. B, Section 1.4 and Table 1-1.
| 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 precise ADC/DAC reference stability. |
| ETH0_RX+, ETH0_RX−, ETH0_TX+, ETH0_TX− | Ethernet differential I/O | Direct connection to magnetics; no external PHY required - simplifies layout and reduces signal integrity risk. |
| USB0_P, USB0_M, USB1_P, USB1_M | USB differential pairs | Dual independent USB physical layers support concurrent OTG and device roles without multiplexing or switching. |
| GPIOA[7:0]–GPIOH[7:0] | General-purpose I/O banks | Eight 8-bit ports with configurable slew rate, drive strength, and interrupt-on-change capability for flexible peripheral interfacing. |
| HIB, RTCCLK, WAKE | Hibernation control signals | Enable ultra-low-power sleep mode (< 1.5 µA) with RTC wake-up and tamper detection - critical for battery-backed remote sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Reduces component count by eliminating external PHY, cuts PCB area by ≥25 mm², and avoids external magnetics calibration. |
| Dual USB 2.0 Interfaces | Enables simultaneous USB host (e.g., for flash storage) and USB device (e.g., CDC ACM serial) without software toggling or hardware mux. |
| Hardware Crypto Engine | Offloads AES-256 encryption at >10 Mbps throughput, freeing CPU for application tasks while maintaining FIPS 140-2 Level 1 compliance. |
| Hibernation Module with RTC | Supports sub-µA deep-sleep with calendar-aware wake-up and battery-backed 2 KB RAM retention - extends battery life in wireless sensor nodes. |
| μDMA with 32 Channels | Eliminates CPU overhead for high-bandwidth transfers (e.g., Ethernet Rx/Tx, USB bulk, ADC streaming) with automatic descriptor chaining. |
Applications
| Industrial Ethernet Gateway | Secure IoT Edge Node |
|---|---|
Use Scenario: Protocol translation between Modbus RTU field devices and cloud MQTT over Ethernet. IC Role / Device Role / Timing Role: Central application processor and real-time protocol stack executor with deterministic Ethernet frame timing. Use Value: Integrated PHY ensures <10 µs jitter on Ethernet TX/RX timestamps; hardware crypto enables authenticated firmware updates without CPU load penalty. | Use Scenario: Battery-powered environmental monitor transmitting encrypted sensor data via TLS over cellular or Wi-Fi. IC Role / Device Role / Timing Role: Secure boot loader, sensor hub aggregator, and TLS offload engine with low-power hibernation between transmissions. Use Value: AES/SHA acceleration achieves 2× faster TLS handshake vs. software-only; hibernation draws <1.5 µA, enabling 5-year battery life on coin cell. |
| Programmable Logic Controller (PLC) | Human-Machine Interface (HMI) |
Use Scenario: Compact PLC with EtherCAT slave capability and local I/O expansion via EPI-connected FPGA. IC Role / Device Role / Timing Role: Real-time motion control coordinator with sub-100 µs I/O scan cycle and deterministic interrupt response. Use Value: Cortex-M4F FPU computes PID loops with 32-bit precision; EPI interface supports 60 MHz SDRAM for real-time motion buffer storage. | Use Scenario: Touch-enabled HMI with local web server, USB mass storage for configuration backup, and Ethernet diagnostics. IC Role / Device Role / Timing Role: Embedded web server host and multi-interface peripheral manager with simultaneous USB/Ethernet I/O. Use Value: Dual USB ports allow concurrent USB device (virtual COM port) and USB host (SD card reader); integrated Ethernet enables zero-config IP provisioning via DHCP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H743VIT6 | ARM Cortex-M7 @ 480 MHz, no integrated Ethernet PHY, requires external PHY; larger Flash (2 MB) but no built-in SHA/MD5 accelerator. | Better raw compute for vision/AI inference; unsuitable for PHY-less Ethernet designs without added components. | Select when higher CPU throughput is critical and external PHY integration is acceptable. |
| RA6M5L20GC001BE | ARM Cortex-M33 @ 200 MHz, integrated Ethernet MAC only (no PHY), TrustZone security, no hardware DES/MD5 support. | Stronger security isolation for certified industrial firmware; lacks integrated PHY and legacy crypto algorithms needed for legacy protocol compliance. | Select for new designs prioritizing PSA Certified security over backward-compatible crypto or PHY integration. |
Compared with STM32H743VIT6 and RA6M5L20GC001BE, TM4C129EKCPDTI3R uniquely combines integrated 10/100 Ethernet PHY, dual USB 2.0, and full-suite hardware crypto (AES/DES/SHA/MD5) in a single 128-pin LQFP - reducing BOM count, layout complexity, and qualification effort for industrial connectivity applications.
Availability
TM4C129EKCPDTI3R is available at Aetrix Electronics and suitable for industrial gateways, secure IoT edge nodes, programmable logic controllers, and human-machine interfaces requiring stable component supply and long-term manufacturability.
Supply support for TM4C129EKCPDTI3R 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 across industrial, automotive, and consumer markets since 1930.
The Tiva C Series - including TM4C129EKCPDTI3R - was designed specifically for high-performance, connected microcontroller applications demanding integrated communication peripherals, real-time determinism, and hardware security acceleration.
FAQ
What is the maximum operating frequency of the TM4C129EKCPDTI3R?
The TM4C129EKCPDTI3R operates at a maximum system clock frequency of 120 MHz, achieved via its internal PLL with support for multiple clock sources including external crystal (1–25 MHz), internal oscillator, or precision internal oscillator (PIOSC). This frequency is fully supported across all voltage and temperature ranges specified in the datasheet.
Does the TM4C129EKCPDTI3R include an integrated Ethernet PHY?
Yes, the TM4C129EKCPDTI3R integrates a full 10/100 Ethernet PHY compliant with IEEE 802.3u, including MII/RMII interface logic, auto-negotiation, and energy-detect power-down mode. This eliminates the need for an external PHY IC and associated magnetics in most industrial Ethernet applications.
What cryptographic algorithms are accelerated in hardware by the TM4C129EKCPDTI3R?
The TM4C129EKCPDTI3R includes dedicated hardware accelerators for AES-128/192/256 (ECB/CBC/CTR/GCM modes), DES/3DES (ECB/CBC), and SHA-1/SHA-224/SHA-256/MD5. These blocks operate independently of the CPU and support DMA-driven data flow for high-throughput secure communications.
Is the TM4C129EKCPDTI3R pin-compatible with other TM4C129x variants?
Yes, the TM4C129EKCPDTI3R shares the same 128-pin LQFP package and pinout with other TM4C129x devices in the CPDT package variant (e.g., TM4C1294KCPDT, TM4C1290NCPDT), enabling drop-in replacement where memory size or peripheral enablement aligns with design requirements.
What development tools are officially supported for the TM4C129EKCPDTI3R?
Texas Instruments provides full toolchain support for the TM4C129EKCPDTI3R, including Code Composer Studio IDE, TivaWare™ C Series software library, and hardware debug via JTAG/SWD using XDS110 or ICDI-based debug probes. TI's EK-TM4C1294XL LaunchPad is directly compatible for evaluation and firmware development.
TM4C129EKCPDTI3R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-TQFP
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- 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:
TM4C129EKCPDTI3R FAQ
1.How can I place an order for TM4C129EKCPDTI3R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C129EKCPDTI3R 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 TM4C129EKCPDTI3R reliable?
The price and inventory of TM4C129EKCPDTI3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C129EKCPDTI3R is usually 5 days.
3.What payment methods are accepted for TM4C129EKCPDTI3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C129EKCPDTI3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C129EKCPDTI3R?
TM4C129EKCPDTI3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C129EKCPDTI3R 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 TM4C129EKCPDTI3R?
For technical support, including TM4C129EKCPDTI3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C129EKCPDTI3R requirements.
6.How does Aetrix verify that TM4C129EKCPDTI3R is sourced from the original manufacturer or authorized distributors?
All TM4C129EKCPDTI3R 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 TM4C129EKCPDTI3R meets industry standards.
7.What is the process for return or replacement of TM4C129EKCPDTI3R?
All TM4C129EKCPDTI3R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C129EKCPDTI3R, 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 TM4C129EKCPDTI3R part is unused and in its original packaging.
Return procedure for TM4C129EKCPDTI3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TM4C129EKCPDTI3R Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
