Texas Instruments TM4C1233E6PMIR

Overview

TM4C1233E6PMIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, and integrated analog peripherals including 12-bit ADC with 12 channels. It features USB 2.0 OTG, multiple UARTs, I²C, SPI, PWM, and hibernation mode for low-power embedded control in industrial sensors and motor drives.

For engineers reviewing the TM4C1233E6PMIR datasheet, TM4C1233E6PMIR pinout, TM4C1233E6PMIR application, or TM4C1233E6PMIR equivalent, key selection criteria include its 80 MHz Cortex-M4F core with FPU, 12-bit ADC sampling at 1 MSPS, USB OTG support, hibernation current of 1.7 µA, and QFP-64 package compatibility with TI's TivaWare™ software stack.

Technical Context

The TM4C1233E6PMIR integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 and DSP instructions. Its memory subsystem includes 256 KB on-chip flash with ECC, 32 KB SRAM, and 2 KB EEPROM - all accessible via tightly coupled bus architecture with zero-wait-state execution at 80 MHz.

Peripherals are managed through a unified clock gating and power control system, enabling selective module enable/disable. The device supports full JTAG and SWD debug interfaces, with NVIC handling up to 64 interrupt sources and configurable priority grouping for deterministic real-time response in time-critical control loops.

Key Specifications

Pinout & Package

TM4C1233E6PMIR is housed in a 64-pin LQFP package (Pb-free, RoHS-compliant) with exposed thermal pad. Pin functions are defined per TI SPMS348E datasheet Rev E, including dedicated JTAG/SWD debug pins, USB D+/D−, VDD/VSS rails, and GPIOs multiplexed with peripheral signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PM and STM32F401CEU6, the TM4C1233E6PMIR offers unique integration of USB OTG with PHY, hibernation current under 2 µA, and TI's mature TivaWare ecosystem - making it optimal for cost-sensitive, battery-aware USB-peripheral designs where rapid time-to-market matters.

Availability

TM4C1233E6PMIR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, motor control gateways, smart thermostat controllers, and hibernation-enabled edge IoT endpoints requiring stable component supply and long-term manufacturability.

Supply support for TM4C1233E6PMIR 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 TM4C1233E6PMIR belongs to TI's Tiva C Series microcontroller family, designed specifically for cost-effective, high-performance embedded control applications requiring USB connectivity, analog integration, and ultra-low-power operation in resource-constrained environments.

FAQ

What is the maximum operating frequency of the TM4C1233E6PMIR?

The TM4C1233E6PMIR operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL that can accept input clocks ranging from 1 MHz to 25 MHz. This frequency is fully supported across all voltage and temperature ranges specified in the datasheet, enabling deterministic real-time performance for control and signal processing tasks within the TM4C1233E6PMIR's architecture.

Does the TM4C1233E6PMIR include an integrated USB physical layer (PHY)?

Yes, the TM4C1233E6PMIR integrates a full-speed USB 2.0 OTG physical layer with on-die termination resistors and a 1.5 kΩ pull-up resistor on the USB0DP line. This eliminates the need for external USB transceivers in device-mode applications and simplifies board layout - a key differentiator versus many competing Cortex-M4 microcontrollers such as the STM32F4 series, which require external PHY components.

What is the hibernation current specification for the TM4C1233E6PMIR?

The TM4C1233E6PMIR achieves a typical hibernation current of 1.7 µA at 3.3 V and 25°C, with RTC running and 2 KB of battery-backed RAM retained. This value is measured under conditions defined in Section 7.3.7 of the SPMS348E datasheet and reflects actual silicon characterization - enabling multi-year battery life in always-on sensor or security applications where the TM4C1233E6PMIR remains in deep sleep until triggered by external event or RTC alarm.

How much on-chip flash and SRAM does the TM4C1233E6PMIR provide?

The TM4C1233E6PMIR includes 256 KB of on-chip flash memory with error-correcting code (ECC) and 32 KB of SRAM with parity protection. Flash endurance is rated at 100,000 write/erase cycles, and SRAM supports zero-wait-state access at maximum clock speed - both verified in production testing and documented in the SPMS348E datasheet revision E, ensuring reliability for firmware updates and runtime data storage in the TM4C1233E6PMIR.

Is the TM4C1233E6PMIR pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C1233E6PMIR is not pin-compatible with other Tiva C Series parts such as the TM4C123GH6PM or TM4C1294NCPDT. While all share the same 64-pin LQFP package outline, pin assignments for peripherals (e.g., USB, ADC, PWM) differ significantly across variants. Board layout must be validated against the specific TM4C1233E6PMIR pin map in SPMS348E - substitution requires schematic and layout revision, not drop-in replacement.