Texas Instruments TM4C1230H6PMIR

Overview

TM4C1230H6PMIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, and integrated analog (12-bit ADC, 16-channel), USB 2.0 device/host/OTG, and multiple serial interfaces (UART, I²C, SSI, CAN). It serves as a main system controller in industrial motor control and smart sensor nodes requiring real-time processing and mixed-signal integration.

For engineers reviewing the TM4C1230H6PMIR datasheet, TM4C1230H6PMIR pinout, TM4C1230H6PMIR application, or TM4C1230H6PMIR equivalent, key selection criteria include its 80 MHz Cortex-M4F core with FPU, 16-channel 12-bit ADC with hardware averaging, USB OTG capability, 100-pin LQFP package with 69 GPIOs, and industrial temperature range (–40°C to +105°C).

Technical Context

The TM4C1230H6PMIR integrates a single-core ARM Cortex-M4F processor with IEEE-754-compliant floating-point unit and 32-bit Thumb-2 instruction set. It supports deterministic real-time execution via NVIC with 8-level priority grouping and up to 80 interrupt lines.

System-level integration includes μDMA with 32 channels supporting peripheral-to-memory transfers, ROM-based bootloader with TivaWare support, and clock management with PLL, internal RC oscillator, and external crystal options (1–25 MHz). Analog subsystem features dual 12-bit ADCs with sequencer-based sampling and hardware oversampling up to 64×.

Key Specifications

Pinout & Package

TM4C1230H6PMIR is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pinout supports full peripheral multiplexing including dedicated USB D+/D−, CAN TX/RX, and dual ADC inputs across GPIO banks A–K.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PM, TM4C1230H6PMIR offers guaranteed operation at +105°C and identical feature set - essential for enclosed industrial environments. Against STM32F407VGT6, it trades raw MHz for integrated USB PHY, smaller footprint, and lower BOM count in USB-native applications.

Availability

TM4C1230H6PMIR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB human interface devices, and programmable logic controller I/O modules requiring stable component supply across long production lifecycles.

Supply support for TM4C1230H6PMIR 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 communications markets since 1930.

The Tiva C Series - including TM4C1230H6PMIR - was engineered for cost-sensitive, real-time embedded applications demanding integrated analog, USB, and industrial-grade reliability without external support components.

FAQ

What is the maximum operating frequency of the TM4C1230H6PMIR?

The TM4C1230H6PMIR operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL locked to an external crystal (4–25 MHz) or internal oscillator. This frequency is sustained across the full industrial temperature range (–40°C to +105°C) and supply voltage (2.95–3.63 V), enabling deterministic real-time performance for motor control and sensor fusion tasks within the TM4C1230H6PMIR's specified electrical limits.

Does the TM4C1230H6PMIR include an integrated USB physical layer?

Yes, the TM4C1230H6PMIR integrates a full-speed USB 2.0 physical layer (PHY) compliant with USB specification revision 2.0. It supports device, host, and OTG modes without requiring external transceivers. The USB0DP and USB0DM pins connect directly to the USB connector with only 27 Ω series resistors and ESD protection diodes needed - a key differentiator from many competing MCUs that require external PHY chips, reducing BOM cost and board area for the TM4C1230H6PMIR.

How many analog-to-digital converter (ADC) channels does the TM4C1230H6PMIR support?

The TM4C1230H6PMIR features two independent 12-bit ADC modules (ADC0 and ADC1), each with up to 16 input channels and a maximum sampling rate of 1 MSPS per module. Channels may be assigned to either ADC, and both support hardware oversampling (up to 64×), programmable sample-and-hold timing, and sequencer-based triggering - allowing synchronized multi-channel acquisition critical for motor current sensing and sensor array interfacing in the TM4C1230H6PMIR.

What debug interface does the TM4C1230H6PMIR provide?

The TM4C1230H6PMIR supports JTAG and ARM Serial Wire Debug (SWD) interfaces through dedicated pins (TCK, TMS, TDI, TDO, nTRST, SWCLK, SWDIO). SWD is the preferred method for modern debuggers due to its 2-pin footprint and full debug capability, including breakpoints, watchpoints, and real-time memory access. Both interfaces are supported by TI's Code Composer Studio and third-party tools like Segger J-Link - ensuring robust development and field diagnostics for the TM4C1230H6PMIR.

Is the TM4C1230H6PMIR pin-compatible with other Tiva C Series microcontrollers?

The TM4C1230H6PMIR uses a 100-pin LQFP package with a defined pinout documented in Section 1.3.7 of its datasheet. It shares the same package footprint and core peripheral pin assignments with other 100-pin Tiva C variants (e.g., TM4C123GH6PM), but differences exist in peripheral availability (e.g., CAN presence) and voltage tolerance. While mechanical mounting is identical, full functional compatibility requires verification of signal mapping and electrical specifications - the TM4C1230H6PMIR is not guaranteed as a drop-in replacement without design review.