Texas Instruments TM4C1233E6PMI7R

Overview

TM4C1233E6PMI7R 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, and 12-bit ADC with 12 channels-designed for real-time industrial control and sensor hub applications.

For engineers reviewing the TM4C1233E6PMI7R datasheet, TM4C1233E6PMI7R pinout, TM4C1233E6PMI7R application, or TM4C1233E6PMI7R equivalent, key selection criteria include its 80 MHz CPU clock, USB device capability, hibernation module with RTC and battery-backed memory, 12-bit ADC resolution, and QFP-64 package compatibility with TI's TivaWare™ software stack.

Technical Context

The TM4C1233E6PMI7R implements a 32-bit ARM Cortex-M4F core with hardware floating-point unit (FPU), supporting single-precision IEEE 754 arithmetic and DSP instructions. It integrates a hibernation module with real-time clock, battery-backed RAM, and wake-on-RTC or external pin events.

Peripherals include two UARTs (one with ISO 7816 support), two I²C modules, two SPI controllers, eight PWM generator blocks, and a μDMA controller with 32 channel assignments. Clock management supports multiple internal/external sources with PLL-based 80 MHz system clock derivation.

Key Specifications

Pinout & Package

TM4C1233E6PMI7R is housed in a 64-pin LQFP (7 mm × 7 mm) package with 0.5 mm pitch, rated for industrial temperature range (–40°C to +85°C). Pin functions are defined per TI SPMS348E datasheet Rev E.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PM and STM32F401RE, the TM4C1233E6PMI7R offers optimal balance of USB device functionality, ultra-low-power hibernation, and compact 64-pin footprint-making it uniquely suited for space-constrained, battery-aware embedded systems requiring field-upgradable firmware and precise analog sensing.

Availability

TM4C1233E6PMI7R is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB human interface devices, and PLC I/O modules requiring stable component supply and long-term manufacturability.

Supply support for TM4C1233E6PMI7R 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, specializing in analog, embedded processing, and wireless technologies since 1930.

The TM4C1233E6PMI7R belongs to TI's Tiva C Series microcontroller family-designed specifically for cost-sensitive, real-time embedded applications demanding USB connectivity, analog integration, and ultra-low-power operation in industrial and consumer systems.

FAQ

What is the maximum operating frequency of the TM4C1233E6PMI7R?

The TM4C1233E6PMI7R operates at a maximum system clock frequency of 80 MHz, achieved via its on-chip PLL that multiplies an internal or external oscillator source. This frequency is fully supported across the industrial temperature range (–40°C to +85°C) and enables execution of complex control algorithms and real-time communication stacks. The TM4C1233E6PMI7R maintains timing compliance under all specified voltage and thermal conditions without derating.

Does the TM4C1233E6PMI7R include a hardware floating-point unit?

Yes, the TM4C1233E6PMI7R integrates a full IEEE 754-compliant single-precision floating-point unit (FPU) as part of its ARM Cortex-M4F core. This FPU accelerates mathematical operations such as trigonometric functions, square roots, and matrix calculations-critical for sensor fusion, motor control, and digital filtering. The TM4C1233E6PMI7R uses the same FPU instruction set as other Cortex-M4F devices, ensuring binary compatibility with standard toolchains.

What USB capabilities does the TM4C1233E6PMI7R support?

The TM4C1233E6PMI7R includes a full-speed USB 2.0 device controller compliant with USB specification revision 2.0. It supports standard device classes including HID, CDC, and mass storage-without requiring an external PHY. The TM4C1233E6PMI7R also features a factory-programmed ROM bootloader enabling firmware updates over USB, and dedicated pins (USB0VBUS, USB0ID) for automatic host/device role detection and VBUS monitoring.

How much on-chip memory does the TM4C1233E6PMI7R provide?

The TM4C1233E6PMI7R integrates 256 KB of on-chip flash memory for program storage and 32 KB of SRAM for runtime data and stack usage. It also includes 8 KB of ROM containing the TivaWare™ peripheral driver library and boot utilities, plus a dedicated 2 KB battery-backed RAM within the hibernation module. All memory blocks are accessible via the Cortex-M4F bus matrix with zero-wait-state operation at 80 MHz.

Is the TM4C1233E6PMI7R pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C1233E6PMI7R is not pin-compatible with other Tiva C Series variants such as the TM4C123GH6PM or TM4C1294NCPDT. It uses a 64-pin LQFP package with a unique pinout optimized for its peripheral set-including dedicated USB, hibernation, and analog signal routing. Migration to other packages requires PCB redesign and firmware adaptation due to differences in GPIO mapping, peripheral assignment, and power domain connections.