Texas Instruments TM4C1292NCPDTI3

Overview

TM4C1292NCPDTI3 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 interfaces - deployed in industrial gateways requiring deterministic real-time control and wired connectivity.

For engineers reviewing the TM4C1292NCPDTI3 datasheet, TM4C1292NCPDTI3 pinout, TM4C1292NCPDTI3 application, or TM4C1292NCPDTI3 equivalent, key selection criteria include Ethernet PHY integration, floating-point unit support, hibernation mode current (1.7 µA), 12-bit ADC resolution, and QFP-128 package compatibility with industrial PCB layouts.

Technical Context

The TM4C1292NCPDTI3 implements a full-featured ARM Cortex-M4F core with hardware FPU and memory protection unit (MPU), enabling deterministic floating-point math and secure task isolation in multitasking RTOS environments. It integrates a single-cycle MAC unit and supports Thumb-2 instruction set for code density and performance.

System-level integration includes on-die Ethernet PHY (10/100 Mbps), USB 2.0 OTG with internal transceiver, dual CAN 2.0B controllers, and a hibernation module with RTC, tamper detection, and battery-backed SRAM - all managed via a unified clock tree with PLL-based frequency synthesis and multiple low-power sleep modes.

Key Specifications

Pinout & Package

TM4C1292NCPDTI3 is housed in a 128-pin LQFP package (JEDEC MO-220, variant VGG). Pin assignments are defined per TI SPMS431B datasheet Section 1.4 and Table 1-1 (Pin Assignments).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with TM4C1294NCPDTI3, the TM4C1292NCPDTI3 trades EEPROM capacity for higher SRAM bandwidth and lower active power; versus STM32H743ZIT6, it delivers faster time-to-market for Ethernet-connected industrial controllers due to PHY integration and mature TivaWare driver stack.

Availability

TM4C1292NCPDTI3 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 lifecycle assurance.

Supply support for TM4C1292NCPDTI3 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 for industrial, automotive, and consumer markets.

The Tiva C Series - including TM4C1292NCPDTI3 - was designed specifically for industrial connectivity applications demanding integrated wired communications (Ethernet, CAN, USB), real-time determinism, and extended temperature operation (–40°C to +105°C).

FAQ

Does TM4C1292NCPDTI3 include an integrated Ethernet PHY?

Yes, the TM4C1292NCPDTI3 integrates a full 10/100 Mbps Ethernet PHY compliant with IEEE 802.3u, supporting RMII interface with internal termination and bias generation. This eliminates the need for an external PHY IC, reducing bill-of-materials cost and PCB footprint. The TM4C1292NCPDTI3 PHY supports auto-negotiation, loopback modes, and MII/RMII register access via the EMAC peripheral.

What is the operating temperature range for TM4C1292NCPDTI3?

The TM4C1292NCPDTI3 is rated for industrial temperature operation from –40°C to +105°C, verified across all core peripherals including Ethernet PHY, USB OTG, and hibernation module. This range is specified in TI's SPMS431B datasheet Section 1.3.10 and applies to the "I3" suffix variant, making TM4C1292NCPDTI3 suitable for deployment in uncontrolled environments such as factory floors and outdoor utility enclosures.

How much SRAM does TM4C1292NCPDTI3 provide, and is it contiguous?

The TM4C1292NCPDTI3 provides 256 KB of on-chip SRAM, organized as a single contiguous block accessible via the AHB bus. This SRAM supports zero-wait-state operation at maximum CPU frequency (120 MHz) and is partitioned into multiple regions with configurable MPU attributes. The TM4C1292NCPDTI3 SRAM is used for stack, heap, DMA buffers, and real-time data structures in TivaWare-based applications.

Can TM4C1292NCPDTI3 operate in hibernate mode with RTC and battery-backed memory active?

Yes, the TM4C1292NCPDTI3 supports hibernate mode with RTC running from an external 32.768 kHz crystal and 1 KB of battery-backed SRAM retained. In this mode, total current draw is 1.7 µA (typical) with VBAT supplied. The TM4C1292NCPDTI3 hibernation module also supports tamper detection, wake-on-RTC-match, and wake-on-external-pin - all documented in Section 7 of the SPMS431B datasheet.

Is TM4C1292NCPDTI3 pin-compatible with other Tiva C Series microcontrollers?

The TM4C1292NCPDTI3 uses a 128-pin LQFP package with a unique pinout optimized for its integrated Ethernet PHY and dual CAN interfaces. It is not pin-compatible with TM4C123x or TM4C129x variants having different peripheral sets (e.g., TM4C1290NCPDTI3 lacks Ethernet PHY). Pin compatibility must be verified per TI's package-specific pin assignment tables - the TM4C1292NCPDTI3 pinout is fixed and non-interchangeable without PCB redesign.