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Texas Instruments TM4C1294NCPDTI3
- Part No.:
- TM4C1294NCPDTI3
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C1294NCPDTI3.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:800
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Product details
Overview
TM4C1294NCPDTI3 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 interfaces - deployed in industrial gateways requiring deterministic real-time control and wired connectivity.
For engineers reviewing the TM4C1294NCPDTI3 datasheet, TM4C1294NCPDTI3 pinout, TM4C1294NCPDTI3 application, or TM4C1294NCPDTI3 equivalent, key selection criteria include Ethernet PHY integration, FPU-enabled signal processing, hibernation-mode power management, and TivaWare™ software stack compatibility.
Technical Context
The TM4C1294NCPDTI3 implements a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and DSP extensions for real-time math-intensive tasks. It integrates a full-speed USB 2.0 OTG controller with internal transceiver and on-chip PHY for Ethernet 10/100BASE-TX.
System-level features include a hibernation module with RTC, battery-backed memory, tamper detection, and VDD3ON low-power mode; plus μDMA with 32-channel support enabling zero-CPU-overhead peripheral transfers across UART, SPI, I²C, ADC, PWM, and EPI interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz - enables deterministic real-time execution with hardware FPU for sensor fusion or motor control math. |
| Memory | 1 MB Flash + 256 KB SRAM - supports large firmware images, OTA update partitions, and real-time data buffering without external memory. |
| Ethernet | Integrated 10/100BASE-TX MAC + PHY - eliminates external PHY IC and associated magnetics, reducing BOM and PCB area. |
| USB | USB 2.0 OTG with on-chip transceiver - allows host/peripheral mode switching without external PHY; supports CDC, HID, and MSC classes out-of-box. |
| Connectivity | Dual CAN 2.0A/B controllers - enables redundant fieldbus communication or multi-network routing in industrial automation nodes. |
| Power Modes | Hibernate mode with 1.7 µA typical current - sustains RTC, tamper, and 2 KB battery-backed RAM during main power loss. |
| Package | 128-pin LQFP (14 × 14 mm, 0.4 mm pitch) - compatible with standard reflow processes and accessible for manual prototyping. |
Pinout & Package
TM4C1294NCPDTI3 is housed in a 128-pin LQFP package (JEDEC MO-207AD), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are defined per TI SPMS433B 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 core (VDD), analog (VDDA), and USB/Ethernet PHY (VDDC) - enable independent filtering and noise isolation. |
| EPH0–EPH7, EPM0–EPM15 | Ethernet PHY interface | Dedicated RMII pins (EPH0–EPH7) and MDIO/MDC (EPM0–EPM1) - allow direct connection to Ethernet magnetics without level-shifting. |
| USB0VBUS, USB0ID | USB OTG detection | Hardware VBUS sensing and ID pin input - enable automatic host/peripheral role negotiation per USB OTG specification. |
| CAN0RX/CAN0TX, CAN1RX/CAN1TX | CAN transceiver I/O | Dual independent CAN bus interfaces - support simultaneous CANopen and J1939 stacks or gateway bridging between networks. |
| HIB, RTCCLK, HIBRST | Hibernation control | Direct hibernate entry/exit, RTC clock input, and hibernate reset - enable ultra-low-power wake-up via external interrupt or RTC alarm. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Reduces system component count by eliminating external PHY IC, magnetics, and associated layout complexity. |
| Floating-Point Unit (FPU) | Accelerates trigonometric, exponential, and matrix operations required for closed-loop motor control or FFT-based vibration analysis. |
| Hibernation Module | Retains RTC time, tamper status, and 2 KB RAM at 1.7 µA - enables battery-backed operation for >1 year on coin cell. |
| μDMA Controller | 32-channel DMA with scatter-gather support - offloads CPU from high-bandwidth transfers (e.g., ADC sampling → SRAM → Ethernet TX). |
| TivaWare™ Software | Production-ready driver library, USB stack, Ethernet MAC/PHY drivers, and FreeRTOS port - cuts firmware development time by ~40% vs bare-metal. |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Aggregating Modbus RTU data from legacy PLCs and forwarding via Ethernet to cloud SCADA. IC Role / Device Role / Timing Role: Central protocol translator and network bridge with deterministic packet scheduling. Use Value: Dual CAN + Ethernet + USB enables concurrent fieldbus, LAN, and local commissioning ports - no external bridge IC required. | Use Scenario: Residential electricity meter with time-of-use billing, tamper detection, and remote firmware updates. IC Role / Device Role / Timing Role: Secure metering controller managing pulse counting, RTC, crypto acceleration, and secure boot. Use Value: Integrated hibernation module maintains accurate time and tamper logs during mains outage; AES engine secures OTA payloads. |
| Programmable Logic Controller (PLC) | Building Automation Controller |
Use Scenario: Compact DIN-rail PLC executing ladder logic and driving I/O over EtherCAT or CANopen. IC Role / Device Role / Timing Role: Real-time motion sequencer with sub-millisecond I/O scan timing and jitter control. Use Value: Cortex-M4F core + FPU delivers consistent 50 µs loop times for PID control; GPIOs support 24 V sinking/sourcing directly. | Use Scenario: HVAC controller managing zone dampers, chillers, and occupancy sensors via BACnet/IP and KNX. IC Role / Device Role / Timing Role: Network-aware environmental manager coordinating schedule, occupancy, and weather inputs. Use Value: Integrated Ethernet MAC+PHY ensures BACnet/IP compliance without PHY validation overhead; dual CAN supports legacy KNX TP1 integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C1290NCPDTI3 | No integrated Ethernet PHY - requires external PHY and magnetics; otherwise identical core, memory, and peripherals. | Suitable where Ethernet is optional or implemented via external switch; lower BOM cost but larger footprint. | Select when Ethernet is not required or when design must reuse existing PHY/magnetics layout. |
| STM32H743ZIT6 | ARM Cortex-M7 @ 480 MHz, no integrated Ethernet PHY, no hibernation module, higher power consumption in active mode. | Better for compute-heavy vision or AI edge inference; lacks integrated PHY and ultra-low-power hibernation. | Select when raw CPU performance outweighs integrated connectivity and lowest-power sleep modes. |
Compared with TM4C1290NCPDTI3, the TM4C1294NCPDTI3 saves board space and reduces signal integrity risk via integrated PHY; versus STM32H743ZIT6, it offers proven low-power hibernation and simpler Ethernet bring-up at the cost of peak MIPS.
Availability
TM4C1294NCPDTI3 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 manufacturability.
Supply support for TM4C1294NCPDTI3 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 since 1930.
The Tiva C Series - including TM4C1294NCPDTI3 - was designed specifically for industrial and factory automation applications demanding integrated connectivity, real-time determinism, and robust low-power operation.
FAQ
What is the maximum operating frequency of the TM4C1294NCPDTI3?
The TM4C1294NCPDTI3 operates at a maximum system clock frequency of 120 MHz, derived from its internal PLL with support for multiple crystal or external clock sources. This frequency is fully supported across all voltage and temperature ranges specified in the SPMS433B datasheet, enabling deterministic real-time execution for time-critical control loops.
Does the TM4C1294NCPDTI3 include an integrated Ethernet physical layer (PHY)?
Yes, the TM4C1294NCPDTI3 integrates a full 10/100BASE-TX Ethernet PHY compliant with IEEE 802.3u, eliminating the need for an external PHY IC. It supports RMII interface and includes dedicated pins for Ethernet magnetics connection, as documented in Section 11.2 of the SPMS433B datasheet.
What low-power modes does the TM4C1294NCPDTI3 support, and what is the lowest current draw?
The TM4C1294NCPDTI3 supports Hibernate mode with typical current draw of 1.7 µA while retaining RTC time, tamper status, and 2 KB of battery-backed RAM. This mode is enabled via the Hibernation Module and requires only VBAT supply - verified in Section 7.3.1 of the SPMS433B datasheet under "Hibernate Mode Current."
Is the TM4C1294NCPDTI3 pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1294NCPDTI3 is not pin-compatible with earlier Tiva C Series devices such as TM4C123GH6PM due to differences in package size (128-pin LQFP vs 64-pin LQFP), peripheral pin mapping, and integrated Ethernet PHY pin assignments. Pin compatibility is limited to same-family variants like TM4C1290NCPDTI3, which shares identical pinout except for Ethernet PHY pins.
What software development tools and libraries are officially supported for the TM4C1294NCPDTI3?
Texas Instruments provides TivaWare™ Peripheral Driver Library, USB Device/Host Stack, Ethernet MAC/PHY drivers, and FreeRTOS port - all validated for TM4C1294NCPDTI3. Development is supported in TI Code Composer Studio (CCS), IAR Embedded Workbench, and GCC-based toolchains via LM Flash Programmer and Uniflash utilities.
TM4C1294NCPDTI3 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1294NCPDTI3 FAQ
1.How can I place an order for TM4C1294NCPDTI3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1294NCPDTI3 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 TM4C1294NCPDTI3 reliable?
The price and inventory of TM4C1294NCPDTI3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1294NCPDTI3 is usually 5 days.
3.What payment methods are accepted for TM4C1294NCPDTI3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1294NCPDTI3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1294NCPDTI3?
TM4C1294NCPDTI3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1294NCPDTI3 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 TM4C1294NCPDTI3?
For technical support, including TM4C1294NCPDTI3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1294NCPDTI3 requirements.
6.How does Aetrix verify that TM4C1294NCPDTI3 is sourced from the original manufacturer or authorized distributors?
All TM4C1294NCPDTI3 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 TM4C1294NCPDTI3 meets industry standards.
7.What is the process for return or replacement of TM4C1294NCPDTI3?
All TM4C1294NCPDTI3 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1294NCPDTI3, 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 TM4C1294NCPDTI3 part is unused and in its original packaging.
Return procedure for TM4C1294NCPDTI3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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