Texas Instruments TM4C1233H6PGEI7R

Overview

TM4C1233H6PGEI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB Flash, 32 KB SRAM, integrated USB 2.0 OTG, 12-bit ADC (1 MSPS, 12 channels), and 48 GPIOs in a 144-pin LQFP package. It serves as a main system controller in industrial HMI, motor control edge nodes, and wired sensor gateways requiring deterministic real-time response and on-chip connectivity.

For engineers reviewing the TM4C1233H6PGEI7R datasheet, TM4C1233H6PGEI7R pinout, TM4C1233H6PGEI7R application, or TM4C1233H6PGEI7R equivalent, key selection criteria include USB OTG host/device capability, hibernation module with RTC and battery-backed memory, FPU-enabled floating-point math for control loops, and dual-CAN 2.0B support - all confirmed in TI's SPMS350E production data sheet.

Technical Context

The TM4C1233H6PGEI7R implements a full-featured Cortex-M4F core with hardware FPU, NVIC supporting 64 interrupt lines, and TPIU trace interface. It integrates a hibernation module with dedicated VBAT supply, 256-byte battery-backed RAM, and calendar-mode RTC - enabling sub-5 µA deep-sleep operation with wake-on-RTC or external pin.

Peripherals include four 32/64-bit general-purpose timers (GPTM) with PWM, capture, and quadrature encoder support; two CAN 2.0B controllers; one USB 2.0 OTG controller with internal PHY; and a μDMA controller with 32-channel arbitration supporting peripheral-to-memory and memory-to-memory transfers without CPU intervention.

Key Specifications

Pinout & Package

TM4C1233H6PGEI7R is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per TI SPMS350E Section 1.4 and Table 1-1 (Pin Assignments), including dedicated JTAG/SWD debug pins (TCK, TMS, TDI, TDO, nSRST), USB D+/D−, CAN0/CAN1 differential pairs, and multiplexed GPIOs with configurable pull-up/down and slew rate.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123GH6PM and STM32F407VGT6, TM4C1233H6PGEI7R uniquely combines USB OTG with integrated PHY, dual CAN, and a fully autonomous hibernation subsystem - reducing external component count and enabling true battery-backed operation without design compromises.

Availability

TM4C1233H6PGEI7R is available at Aetrix Electronics and suitable for industrial motor control, smart building gateways, and wired sensor nodes requiring stable component supply, long-term lifecycle support, and qualified automotive-grade temperature range (–40°C to +105°C).

Supply support for TM4C1233H6PGEI7R 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience delivering high-reliability silicon for industrial, automotive, and aerospace applications.

The TM4C1233H6PGEI7R belongs to TI's Tiva C Series microcontrollers - designed specifically for cost-sensitive, real-time industrial control and wired connectivity applications where integration, low-power operation, and debug visibility are critical.

FAQ

What is the maximum operating frequency of the TM4C1233H6PGEI7R?

The TM4C1233H6PGEI7R operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL with support for multiple clock sources including internal RC oscillator, external crystal (up to 25 MHz), or external clock input. This frequency is validated across the full industrial temperature range (–40°C to +105°C) and enables deterministic real-time execution of control algorithms and communication stacks in the TM4C1233H6PGEI7R.

Does the TM4C1233H6PGEI7R include an integrated USB physical layer (PHY)?

Yes, the TM4C1233H6PGEI7R integrates a full-speed USB 2.0 OTG physical layer with on-die termination and 1.5 kΩ pull-up resistor on USB0DP. This eliminates the need for an external USB transceiver in device-mode applications and simplifies board layout. The TM4C1233H6PGEI7R supports both host and device roles via its USB controller, and the integrated PHY is fully compliant with USB 2.0 specifications.

What low-power modes does the TM4C1233H6PGEI7R support, and what is the lowest current consumption?

The TM4C1233H6PGEI7R supports multiple low-power states including Sleep, Deep-Sleep, and Hibernate. In Hibernate mode - enabled via the dedicated HIBERNATE pin - it achieves less than 5 µA typical current draw while retaining RTC operation, 256 bytes of battery-backed RAM, and wake capability from RTC alarm or external interrupt. This ultra-low-power capability is verified in TI's SPMS350E datasheet and makes the TM4C1233H6PGEI7R ideal for battery-operated field devices.

How many analog-to-digital converter (ADC) channels does the TM4C1233H6PGEI7R provide, and what is its resolution?

The TM4C1233H6PGEI7R features a single 12-bit successive approximation register (SAR) ADC with up to 12 external input channels and a built-in temperature sensor. It supports sample rates up to 1 MSPS with hardware averaging (2x–64x) and programmable trigger sources including timer, GPIO, and software. This ADC subsystem is fully specified in the TM4C1233H6PGEI7R production data sheet and meets requirements for precision analog sensing in motor control and power monitoring applications.

Is the TM4C1233H6PGEI7R pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C1233H6PGEI7R is not pin-compatible with other Tiva C Series variants such as TM4C123GH6PM or TM4C1294NCPDT. Its 144-pin LQFP package has a unique pinout optimized for dual CAN, USB, and hibernation functionality. While peripheral registers and software APIs are consistent across the family, PCB layout must be designed specifically for the TM4C1233H6PGEI7R footprint and signal routing - confirmed by TI's SPMS350E pin assignment tables.