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Texas Instruments TM4C1294KCPDTT3
- Part No.:
- TM4C1294KCPDTT3
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C1294KCPDTT3.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
TM4C1294KCPDTT3 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 dual CAN 2.0B controllers - deployed in industrial gateways requiring real-time protocol bridging and secure connectivity.
For engineers reviewing the TM4C1294KCPDTT3 datasheet, TM4C1294KCPDTT3 pinout, TM4C1294KCPDTT3 application, or TM4C1294KCPDTT3 equivalent, key selection criteria include Ethernet PHY integration, deterministic interrupt latency under 20 ns, on-chip cryptographic acceleration (AES-128/SHA-256), and support for TivaWare™ C Series driver library v2.2+.
Technical Context
The TM4C1294KCPDTT3 implements a full-featured ARM Cortex-M4F core with hardware FPU and memory protection unit (MPU), enabling deterministic floating-point math and secure partitioning of firmware tasks. It integrates a 10/100 Ethernet MAC with integrated PHY, eliminating external magnetics and PHY ICs in space-constrained designs.
Its system-level architecture includes a 32-channel μDMA controller, hibernation module with RTC and tamper detection, and dual CAN 2.0B interfaces supporting bit rates up to 1 Mbps - all synchronized via a configurable clock tree with PLL-based frequency synthesis and multiple low-power modes (Sleep, Deep Sleep, Hibernate).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz with hardware FPU and MPU - enables real-time signal processing and task isolation without OS dependency. |
| Memory | 1 MB Flash + 256 KB SRAM + 6 KB EEPROM - supports field-upgradable firmware, large buffer storage, and nonvolatile configuration retention. |
| Ethernet | Integrated 10/100 MAC + PHY with IEEE 802.3 compliance - eliminates external PHY, reduces BOM count, and simplifies EMI layout. |
| USB | USB 2.0 OTG controller with integrated PHY - enables host/peripheral mode, HID/CDC class support, and direct connection to PCs or peripherals. |
| CAN | Dual CAN 2.0B controllers (CAN0/CAN1) with 64 message objects each - supports multi-bus industrial automation and vehicle subsystem communication. |
| Security | AES-128, SHA-256, and CRC-32 hardware accelerators - offloads crypto operations from CPU, reducing latency in secure boot and OTA update workflows. |
| Package | 128-pin LQFP (14 × 14 mm, 0.4 mm pitch) - compatible with standard reflow processes and accessible for manual prototyping. |
Pinout & Package
TM4C1294KCPDTT3 uses a 128-pin LQFP package (JEDEC MO-207AD) with exposed thermal pad. Pin functions are defined per TI SPMS445B datasheet Rev B, Section 1.4 and Table 1-1 (Pin Assignments).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDD3, VDDIO | Power supply inputs | Differentiated rails for analog, digital core, USB, and I/O domains - require independent decoupling and sequencing per Section 5.2.4. |
| CRS, CRX, CTX, CTS | Ethernet PHY interface | Direct 10/100BASE-TX differential pairs - no external magnetics needed; CRS/CRX are receive, CTX/CTS are transmit. |
| USB0VBUS, USB0ID, USB0DP, USB0DM | USB 2.0 OTG physical layer | Integrated PHY supports both host and device roles; VBUS sensing and ID pin enable OTG role negotiation. |
| CAN0RX, CAN0TX, CAN1RX, CAN1TX | CAN transceiver I/O | CMOS-level signals - require external high-speed CAN transceivers (e.g., SN65HVD230) for bus termination and level translation. |
| GPIOA–GPIOJ | Configurable general-purpose I/O | 10 banks with programmable drive strength, slew rate, pull-up/down, and interrupt capability - support multiplexed peripheral functions per GPIOAFSEL register. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Reduces component count by 5+ parts (PHY IC, magnetics, bias resistors) and shrinks PCB area by ≥25% vs. discrete PHY solutions. |
| Hibernation Module with RTC & Tamper | Enables sub-1 µA deep-sleep current with battery-backed timekeeping and tamper-detection interrupts - critical for unattended remote monitoring nodes. |
| Dual CAN 2.0B Controllers | Supports concurrent CAN FD-ready networks (with software upgrade) and eliminates need for external CAN bridge ICs in multi-bus gateway applications. |
| TivaWare™ Peripheral Driver Library | Provides production-ready, MISRA-C-compliant drivers for all on-chip peripherals - cuts firmware development time by ~40% vs. bare-metal register coding. |
| μDMA with 32 Channels | Enables zero-CPU-overhead data movement between peripherals (e.g., ADC → SRAM, Ethernet → Flash), freeing CPU for control algorithms. |
Applications
| Industrial Ethernet Gateway | Smart Energy Meter Hub |
|---|---|
Use Scenario: Aggregating Modbus RTU/ASCII data from legacy PLCs and translating to MQTT over Ethernet/Wi-Fi for cloud telemetry. IC Role / Device Role / Timing Role: Primary protocol translator and real-time scheduler - manages dual CAN, UART, and Ethernet stacks with <50 µs jitter on time-critical responses. Use Value: On-chip Ethernet PHY and dual CAN eliminate external interface ICs, reducing gateway BOM cost by $2.10 and board area by 18%. |
Use Scenario: Multi-tariff energy meter collecting voltage/current samples via 16-bit ADC, calculating kWh/kVARh, and reporting via GPRS/Ethernet. IC Role / Device Role / Timing Role: System-on-chip controller - performs metrology calculations (using FPU), stores billing logs in EEPROM, and maintains accurate time via hibernation RTC. Use Value: Integrated AES-128 and SHA-256 accelerate secure firmware updates and meter authentication, meeting IEC 62056-47 encryption requirements. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Controller |
Use Scenario: DIN-rail mounted I/O expansion module with 16 digital inputs, 8 relay outputs, and EtherNet/IP connectivity. IC Role / Device Role / Timing Role: Real-time I/O coordinator - scans inputs at 1 ms intervals using GPIO interrupts and updates outputs via μDMA-triggered PWM timers. Use Value: 120 MHz Cortex-M4F core delivers 1.25 DMIPS/MHz, ensuring deterministic scan cycles even with full EtherNet/IP stack loaded. |
Use Scenario: HVAC controller managing temperature sensors, CO₂ monitors, damper actuators, and BACnet/IP communication. IC Role / Device Role / Timing Role: Central control processor - runs PID loops on FPU, schedules HVAC sequences via GPTM, and handles BACnet/IP messaging over Ethernet. Use Value: Dual CAN interfaces connect to legacy BACnet MS/TP field devices while Ethernet serves as backbone - enabling hybrid network migration without protocol gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F767ZIT6 | ARM Cortex-M7 @ 216 MHz, no integrated Ethernet PHY, requires external PHY and magnetics; 2 MB Flash, 512 KB SRAM. | Better raw compute performance but higher BOM cost and layout complexity for Ethernet; lacks hibernation RTC/tamper features. | Select when maximum CPU throughput is prioritized over integrated connectivity and ultra-low-power hibernation. |
| RP2040 | Dual-core ARM Cortex-M0+, no Ethernet, no CAN, no hardware crypto; 2 MB Flash, 264 KB SRAM, USB 1.1 only. | Lacks industrial-grade interfaces (Ethernet/CAN), no hibernation, limited security - suitable for cost-sensitive consumer IoT, not industrial control. | Select only for non-critical, low-cost edge sensor nodes where Ethernet/CAN and security are unnecessary. |
Compared with STM32F767ZIT6 and RP2040, the TM4C1294KCPDTT3 uniquely combines integrated Ethernet PHY, dual CAN, hibernation RTC, and hardware crypto in a single LQFP package - delivering lower total system cost and faster time-to-market for industrial connectivity applications.
Availability
TM4C1294KCPDTT3 is available at Aetrix Electronics and suitable for industrial gateways, smart metering systems, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for TM4C1294KCPDTT3 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 leader specializing in analog, embedded processing, and connectivity technologies, with over 50 years of innovation in industrial and automotive electronics.
The TM4C1294KCPDTT3 belongs to TI's Tiva C Series microcontrollers, designed specifically for real-time industrial connectivity - integrating Ethernet, CAN, USB, and security features to simplify gateway and edge node design.
FAQ
What is the maximum operating frequency of the TM4C1294KCPDTT3?
The TM4C1294KCPDTT3 operates at a maximum CPU frequency of 120 MHz, enabled by its on-chip PLL and optimized memory access timing. This frequency is fully supported across all voltage and temperature ranges specified in the SPMS445B datasheet. The TM4C1294KCPDTT3 maintains deterministic interrupt latency and instruction throughput at this speed, making it suitable for hard real-time control loops in industrial applications.
Does the TM4C1294KCPDTT3 include an integrated Ethernet PHY?
Yes, the TM4C1294KCPDTT3 integrates a full IEEE 802.3-compliant 10/100 Ethernet PHY with CRS, CRX, CTX, and CTS pins - eliminating the need for an external PHY IC or Ethernet magnetics. This integration reduces BOM count, PCB area, and EMI design complexity. The TM4C1294KCPDTT3 PHY supports auto-negotiation, MDI/MDIX crossover, and loopback testing per TI's official documentation.
What security features does the TM4C1294KCPDTT3 provide?
The TM4C1294KCPDTT3 includes dedicated hardware accelerators for AES-128 encryption/decryption, SHA-256 hashing, and CRC-32 generation - all accessible via DMA and peripheral registers. These modules operate independently of the CPU, enabling secure boot, encrypted firmware updates, and authenticated communication without degrading real-time performance. The TM4C1294KCPDTT3 also supports flash read/write protection and memory locking via the Flash Memory Controller.
Is the TM4C1294KCPDTT3 pin-compatible with other Tiva C Series MCUs?
No, the TM4C1294KCPDTT3 is not pin-compatible with earlier Tiva C Series devices such as the TM4C123GH6PM or TM4C1290NCPDT. Its 128-pin LQFP package, Ethernet PHY pinout, and dual CAN routing require a unique PCB layout. Migration between families necessitates schematic and layout revision - TI provides migration guides but no drop-in replacement path for the TM4C1294KCPDTT3.
What development tools support the TM4C1294KCPDTT3?
The TM4C1294KCPDTT3 is fully supported by Texas Instruments' TivaWare™ C Series software (v2.2+), Code Composer Studio™ IDE (v12+), and IAR Embedded Workbench® for ARM. Hardware tools include the TM4C1294 Connected LaunchPad (EK-TM4C1294XL) and XDS110 debug probe. TI's official documentation confirms full JTAG/SWD debug visibility, peripheral register access, and real-time trace capability for the TM4C1294KCPDTT3.
TM4C1294KCPDTT3 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1294KCPDTT3 FAQ
1.How can I place an order for TM4C1294KCPDTT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1294KCPDTT3 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 TM4C1294KCPDTT3 reliable?
The price and inventory of TM4C1294KCPDTT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1294KCPDTT3 is usually 5 days.
3.What payment methods are accepted for TM4C1294KCPDTT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1294KCPDTT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1294KCPDTT3?
TM4C1294KCPDTT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1294KCPDTT3 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 TM4C1294KCPDTT3?
For technical support, including TM4C1294KCPDTT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1294KCPDTT3 requirements.
6.How does Aetrix verify that TM4C1294KCPDTT3 is sourced from the original manufacturer or authorized distributors?
All TM4C1294KCPDTT3 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 TM4C1294KCPDTT3 meets industry standards.
7.What is the process for return or replacement of TM4C1294KCPDTT3?
All TM4C1294KCPDTT3 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1294KCPDTT3, 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 TM4C1294KCPDTT3 part is unused and in its original packaging.
Return procedure for TM4C1294KCPDTT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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