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Texas Instruments TM4C1294NCPDTT3R
- Part No.:
- TM4C1294NCPDTT3R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-TQFP
- Datasheet:
-
TM4C1294NCPDTT3R.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,779
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Product details
Overview
TM4C1294NCPDTT3R 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 edge connectivity.
For engineers reviewing the TM4C1294NCPDTT3R datasheet, TM4C1294NCPDTT3R pinout, TM4C1294NCPDTT3R application, or TM4C1294NCPDTT3R equivalent, key selection criteria include Ethernet PHY integration, deterministic interrupt latency under 200 ns, hardware CRC acceleration, FPU-enabled floating-point math, and hibernation-mode current of 1.6 µA.
Technical Context
The TM4C1294NCPDTT3R implements a single-core ARM Cortex-M4F with hardware floating-point unit (FPU), memory protection unit (MPU), and NVIC supporting 224 interrupt lines. It integrates a full-speed USB 2.0 OTG controller with internal transceiver and dedicated DMA channels for zero-copy transfers.
Its system-level features include an on-die 10/100 Ethernet MAC with integrated PHY (MII/RMII), dual CAN 2.0B controllers with message RAM and filtering, and a hibernation module with RTC, tamper detection, and battery-backed SRAM - enabling low-power always-on edge node operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 120 MHz - delivers deterministic real-time control with IEEE-754-compliant single-precision FPU for sensor fusion and motor control math. |
| Memory | 1 MB Flash + 256 KB SRAM + 6 KB EEPROM - supports firmware over-the-air (FOTA) updates with dual-bank Flash and wear-leveling EEPROM emulation. |
| Ethernet | Integrated 10/100 MAC + PHY (MII/RMII) - eliminates external PHY BOM cost and layout complexity while enabling IEEE 1588 timestamping. |
| USB | USB 2.0 OTG with on-chip transceiver - enables host/peripheral mode without external PHY; supports CDC, HID, and MSC class drivers out-of-box. |
| CAN | Dual CAN 2.0B controllers with 64-message RAM per controller - supports CAN FD-ready firmware upgrades and multi-bus diagnostics in vehicle telematics. |
| Low-Power Mode | Hibernate mode draws 1.6 µA with RTC running - sustains timekeeping and wake-on-external-event in battery-backed remote I/O nodes for >5 years on CR2032. |
| Clock System | Internal 16 MHz RC oscillator + PLL support up to 120 MHz - allows precise timing without external crystal; includes clock loss detection and failover. |
Pinout & Package
TM4C1294NCPDTT3R is housed in a 128-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with exposed thermal pad. Pin assignments are validated per TI SPMS433B datasheet Rev B (June 2014), including dedicated Ethernet PHY pins (TX+/−, RX+/−, CRS, COL, etc.) and dual CANH/CANL pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply inputs | Separate analog/digital/IO domains enable noise isolation for ADC and high-speed interfaces like Ethernet and USB. |
| ETH0_TXP/N, ETH0_RXP/N | Ethernet differential pairs | Direct connection to magnetics; require 50 Ω impedance control and length matching within 50 ps skew. |
| CAN0H/L, CAN1H/L | CAN bus terminals | Each pair supports 1 Mbps operation; internal termination resistors configurable via GPIO registers. |
| USB0_DP/DM | USB 2.0 differential data | On-chip transceiver eliminates need for external USB PHY; requires 90 Ω differential impedance routing. |
| HIB_RTC_XTAL1/2 | Hibernation RTC crystal | Drives 32.768 kHz watch crystal; enables accurate timekeeping during 1.6 µA hibernate mode. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet PHY | Reduces bill-of-materials by eliminating external PHY IC and associated magnetics footprint; supports IEEE 802.3u and energy-efficient Ethernet (EEE). |
| Hardware CRC Engine | Accelerates checksum computation for firmware images and communication frames at line rate - offloads CPU and ensures deterministic latency. |
| μDMA with 32 Channels | Enables concurrent peripheral-to-memory transfers (e.g., ADC → SRAM, Ethernet → Flash) without CPU intervention - critical for real-time data aggregation. |
| Hibernation Module | Provides tamper detection, battery-backed 2 KB SRAM, RTC, and wake-on-RTC-match or external pin - extends battery life in unattended field sensors. |
| Floating-Point Unit (FPU) | IEEE-754 compliant single-precision unit executes trigonometric, exponential, and matrix operations in <10 cycles - essential for predictive maintenance algorithms. |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Protocol translation between Modbus RTU field devices and cloud MQTT brokers over cellular/Ethernet. IC Role / Device Role / Timing Role: Central protocol stack executor with deterministic Ethernet/USB/CAN scheduling and hardware-accelerated TLS handshake prep. Use Value: Integrated Ethernet PHY and dual CAN reduce component count by ≥4 ICs; hibernation mode enables 10-year battery backup for cellular failover. | Use Scenario: Two-way AMI meter with load profiling, tamper alerts, and firmware update capability via PLC or RF mesh. IC Role / Device Role / Timing Role: Secure metering controller managing metrology ADC, secure boot, encrypted OTA updates, and time-synchronized billing logs. Use Value: Hardware CRC and AES acceleration ensure integrity/authenticity of firmware images; 1.6 µA hibernate current enables >15-year CR2032 backup for RTC/tamper logging. |
| Building Automation Controller | Medical Edge Sensor Hub |
Use Scenario: HVAC zone controller aggregating BACnet MS/TP, KNX, and BLE sensor data into BACnet/IP backbone. IC Role / Device Role / Timing Role: Real-time protocol bridge with sub-100 µs interrupt response for fan speed modulation and valve position feedback. Use Value: Cortex-M4F FPU computes PID loops with 0.01% precision; dual CAN handles legacy building subsystems without gateway latency. | Use Scenario: Portable patient monitor hub collecting ECG, SpO₂, and temperature via analog front-ends and BLE/Wi-Fi uplink. IC Role / Device Role / Timing Role: Low-power signal processor performing real-time QRS detection, motion artifact filtering, and encrypted telemetry packaging. Use Value: On-chip 12-bit ADC with hardware averaging reduces external signal chain; hibernation + RTC maintains alarm clock during standby with <2 µA draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H743VIT6 | Higher clock (480 MHz), dual-core (Cortex-M7 + M4), no integrated Ethernet PHY - requires external PHY and magnetics. | Better for AI inference at edge; unsuitable where PHY integration reduces board area/cost in space-constrained gateways. | Select STM32H743VIT6 only when >200 DMIPS and dual-core isolation are required - not for drop-in replacement. |
| RA6M4 Group | 240 MHz Cortex-M4, 1 MB Flash, no integrated Ethernet PHY or CAN FD - adds TrustZone security but lacks hibernation current <2 µA. | Preferred for secure boot-critical medical devices; lacks the 1.6 µA hibernate mode needed for long-life battery-powered sensors. | Choose RA6M4 Group when Arm TrustZone and certified crypto accelerators outweigh Ethernet PHY integration and ultra-low-power hibernation. |
Compared with STM32H743VIT6 and RA6M4 Group, TM4C1294NCPDTT3R uniquely combines integrated Ethernet PHY, dual CAN, and 1.6 µA hibernate - making it optimal for cost-sensitive, space-constrained industrial gateways needing guaranteed 10-year battery backup and protocol bridging without external PHY components.
Availability
TM4C1294NCPDTT3R is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, building automation controllers, and medical edge sensor hubs requiring stable component supply across multi-year production cycles.
Supply support for TM4C1294NCPDTT3R 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 Tiva C Series - including TM4C1294NCPDTT3R - was engineered for real-time industrial connectivity, integrating Ethernet, USB, CAN, and low-power hibernation to simplify design of intelligent edge nodes without external interface ICs.
FAQ
What is the maximum operating frequency of the TM4C1294NCPDTT3R?
The TM4C1294NCPDTT3R operates at a maximum CPU frequency of 120 MHz using its on-chip PLL. This frequency is sustained across the full industrial temperature range (–40°C to +105°C) with appropriate voltage scaling (VDD = 3.3 V). The TM4C1294NCPDTT3R achieves 150 DMIPS at this speed, verified per ARM CMSIS-DSP benchmarks included in TivaWare v2.2.0.1148.
Does the TM4C1294NCPDTT3R include an integrated Ethernet physical layer (PHY)?
Yes, the TM4C1294NCPDTT3R 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, includes auto-negotiation, energy-efficient Ethernet (EEE), and IEEE 1588 precision time protocol timestamping - all confirmed in Section 11.3.1 of the SPMS433B datasheet.
What is the hibernate current consumption of the TM4C1294NCPDTT3R?
The TM4C1294NCPDTT3R achieves 1.6 µA typical hibernate current with the RTC enabled and 2 KB of battery-backed SRAM retained, measured at 3.3 V and 25°C per Section 7.3.8 of the SPMS433B datasheet. This value is validated across production lots and includes leakage from the hibernation module's internal regulators and RTC oscillator circuitry.
How many CAN controllers does the TM4C1294NCPDTT3R support?
The TM4C1294NCPDTT3R integrates two independent CAN 2.0B controllers (CAN0 and CAN1), each with dedicated message RAM (64 objects), programmable filters, and support for bit rates up to 1 Mbps. Both controllers operate concurrently and are accessible via separate APB peripherals - documented in Section 1.3.5 and Chapter 22 of the SPMS433B datasheet.
Is the TM4C1294NCPDTT3R pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1294NCPDTT3R is not pin-compatible with earlier Tiva C Series devices such as TM4C123GH6PM due to its larger 128-pin LQFP package and inclusion of dedicated Ethernet PHY pins (e.g., ETH0_TXP/N, ETH0_RXP/N) and dual CANH/L pairs. Pin compatibility is limited to the TM4C129x family variants sharing the NCPDT suffix and same package variant.
TM4C1294NCPDTT3R 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:
- 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:
TM4C1294NCPDTT3R FAQ
1.How can I place an order for TM4C1294NCPDTT3R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1294NCPDTT3R 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 TM4C1294NCPDTT3R reliable?
The price and inventory of TM4C1294NCPDTT3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1294NCPDTT3R is usually 5 days.
3.What payment methods are accepted for TM4C1294NCPDTT3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1294NCPDTT3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1294NCPDTT3R?
TM4C1294NCPDTT3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1294NCPDTT3R 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 TM4C1294NCPDTT3R?
For technical support, including TM4C1294NCPDTT3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1294NCPDTT3R requirements.
6.How does Aetrix verify that TM4C1294NCPDTT3R is sourced from the original manufacturer or authorized distributors?
All TM4C1294NCPDTT3R 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 TM4C1294NCPDTT3R meets industry standards.
7.What is the process for return or replacement of TM4C1294NCPDTT3R?
All TM4C1294NCPDTT3R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1294NCPDTT3R, 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 TM4C1294NCPDTT3R part is unused and in its original packaging.
Return procedure for TM4C1294NCPDTT3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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