Texas Instruments TM4C1232E6PMI7R

Overview

TM4C1232E6PMI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 device controller, 12-bit ADC (1 MSPS, 12 channels), and dual CAN 2.0A/B controllers. It serves as a main system controller in industrial motor drives requiring real-time control, analog sensing, and fieldbus connectivity.

For engineers reviewing the TM4C1232E6PMI7R datasheet, TM4C1232E6PMI7R pinout, TM4C1232E6PMI7R application, or TM4C1232E6PMI7R equivalent, key selection considerations include its 80 MHz M4F core with FPU, USB device + dual CAN interface coexistence, 12-bit ADC timing accuracy, LQFP-100 package thermal performance, and TivaWare™ software support for deterministic real-time firmware development.

Technical Context

The TM4C1232E6PMI7R integrates an ARM Cortex-M4F core with single-precision floating-point unit and memory protection unit, enabling deterministic real-time execution of control algorithms. Its system-level integration includes a programmable clock tree with PLL, power gating per peripheral, and configurable GPIOs supporting multiple alternate functions including USB, CAN, UART, SSI, and I²C.

Peripherals are tightly coupled via a 32-bit AHB bus matrix with μDMA support across 32 channels, allowing zero-CPU-overhead transfers between ADC, timers, and communication interfaces. The analog subsystem features hardware sample averaging, temperature sensor, and digital comparators-enabling closed-loop feedback without CPU intervention.

Key Specifications

Pinout & Package

LQFP-100 package with exposed thermal pad (EP); 100-pin square outline, 0.5 mm pitch, JEDEC MS-026AC compliant. Pinout validated per TI SPMS343E Rev E (June 2014) datasheet Figures 1-10 through 1-14 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 TM4C1232E6PMI7R, TM4C1294NCPDT trades dual CAN for Ethernet and higher memory, while STM32F407VGT6 offers higher CPU speed and memory at the cost of CAN count and USB integration - making TM4C1232E6PMI7R optimal for CAN-centric industrial edge nodes with USB serviceability.

Availability

TM4C1232E6PMI7R is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, PLC I/O modules, and smart sensor nodes requiring stable component supply, long-term lifecycle assurance, and full production traceability.

Supply support for TM4C1232E6PMI7R 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 targets cost-sensitive, real-time embedded applications requiring high peripheral integration, deterministic timing, and broad software ecosystem support - specifically designed for industrial automation, motor control, and automotive subsystems.

FAQ

What is the maximum operating frequency of the TM4C1232E6PMI7R?

The TM4C1232E6PMI7R operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL with a 1–25 MHz crystal or external clock source. This frequency is fully supported across all peripherals including USB, CAN, ADC, and timers, and is validated over the full –40°C to +105°C temperature range specified for the TM4C1232E6PMI7R.

Does the TM4C1232E6PMI7R include an integrated USB PHY?

Yes, the TM4C1232E6PMI7R includes a full-speed (12 Mbps) USB 2.0 device-mode PHY with integrated termination resistors and a 1.5 kΩ pull-up resistor on D+. This eliminates the need for an external USB transceiver and simplifies PCB layout - a feature confirmed in Section 1.3.3 and Figure 1-10 of the TM4C1232E6PMI7R datasheet.

How many CAN controllers does the TM4C1232E6PMI7R support?

The TM4C1232E6PMI7R integrates two independent CAN 2.0A/B controllers (CAN0 and CAN1), each with dedicated message RAM, filtering logic, and transmit/receive FIFOs. Both controllers operate concurrently without resource contention, as documented in Section 1.3.3 and Table 1-1 of the TM4C1232E6PMI7R datasheet.

What is the ADC resolution and sampling rate of the TM4C1232E6PMI7R?

The TM4C1232E6PMI7R features a 12-bit successive-approximation ADC with a maximum sampling rate of 1 MSPS across up to 12 input channels. It supports hardware sample averaging (up to 64x), temperature sensor input, and digital comparators - all verified in Section 1.3.5 and Table 13-1 of the TM4C1232E6PMI7R datasheet.

Is the TM4C1232E6PMI7R pin-compatible with other Tiva C Series MCUs?

No, the TM4C1232E6PMI7R is not pin-compatible with other Tiva C Series MCUs such as the TM4C129x or TM4C123x variants outside its own E6PM family. Pin compatibility is limited to same-package derivatives (e.g., TM4C1232H6PM) - confirmed by comparing pin assignment tables in SPMS343E Rev E, where signal mapping differs significantly across families.