Texas Instruments TM4C123BH6PGEIR

Overview

TM4C123BH6PGEIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated peripherals including USB 2.0 OTG, CAN, 8×PWM, 12-bit ADC (up to 1MSPS), and hibernation module; it operates at up to 80 MHz and supports industrial temperature range (–40°C to +105°C) in a 144-pin LQFP package for embedded control applications.

For engineers reviewing the TM4C123BH6PGEIR datasheet, TM4C123BH6PGEIR pinout, TM4C123BH6PGEIR application, or TM4C123BH6PGEIR equivalent, key selection considerations include its integrated USB PHY, dual CAN 2.0B controllers, hibernation power mode down to 1.7 µA, and support for TivaWare™ software stack in real-time motor control and industrial automation designs.

Technical Context

The TM4C123BH6PGEIR integrates a 32-bit ARM Cortex-M4F core with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It features a configurable clock system with PLL, internal precision oscillator, and multiple low-power modes including deep-sleep and hibernate.

Peripherals include two CAN 2.0B controllers, one USB 2.0 OTG controller with integrated PHY, eight 16/32-bit general-purpose timers, and a 12-bit ADC with eight sample sequencers and hardware averaging-enabling deterministic real-time control and sensor acquisition without host CPU intervention.

Key Specifications

Pinout & Package

TM4C123BH6PGEIR 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 SPMS367E datasheet Rev E (June 2014), supporting full I/O multiplexing across GPIO banks A–K, dedicated JTAG/SWD debug pins, and dedicated analog inputs (AIN0–AIN11).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TM4C123BH6PGEIR, TM4C1294NCPDT trades CAN for Ethernet and scales memory for protocol stacks, while STM32F407VGT6 delivers higher CPU speed but increases BOM complexity and minimum sleep current - making TM4C123BH6PGEIR optimal for CAN-centric, battery-sensitive industrial nodes.

Availability

TM4C123BH6PGEIR is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart grid monitoring, and portable medical instrumentation requiring stable component supply and long-term lifecycle assurance.

Supply support for TM4C123BH6PGEIR 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, embedded processing, and wireless technologies for industrial, automotive, and consumer markets.

The TM4C123x product line was designed specifically for real-time embedded control applications demanding integrated connectivity (CAN, USB), deterministic timing, and ultra-low-power hibernation - targeting industrial automation, automotive sub-systems, and intelligent sensor nodes.

FAQ

What is the maximum operating frequency of the TM4C123BH6PGEIR?

The TM4C123BH6PGEIR operates at a maximum system clock frequency of 80 MHz, achieved via its internal PLL driven from the main oscillator or precision internal oscillator. This frequency is fully supported across the industrial temperature range (–40°C to +105°C) and enables real-time execution of control algorithms and peripheral handling without throttling. The TM4C123BH6PGEIR's Cortex-M4F core maintains consistent timing behavior at this rate, validated in TI's production test flow.

Does the TM4C123BH6PGEIR include an integrated USB physical layer?

Yes, the TM4C123BH6PGEIR integrates a full-speed USB 2.0 OTG physical layer (PHY) compliant with USB specification revision 2.0. This eliminates the need for an external transceiver and supports device, host, and OTG roles. The TM4C123BH6PGEIR's USB module includes dedicated VBUS detection, ID pin sensing, and endpoint buffers - enabling reliable firmware updates and data transfer in field-deployed systems.

What low-power modes does the TM4C123BH6PGEIR support, and what is the lowest achievable current?

The TM4C123BH6PGEIR supports Sleep, Deep-sleep, and Hibernate modes. In Hibernate mode with RTC active and battery-backed RAM enabled, it achieves 1.7 µA typical current consumption. This mode retains register state and wakes on calendar alarm, external pin, or HIB interrupt - making it ideal for battery-powered sensor nodes where multi-year operation is required. The TM4C123BH6PGEIR's hibernate controller manages power gating and clock domain isolation autonomously.

How many CAN interfaces does the TM4C123BH6PGEIR provide, and are they fully compliant?

The TM4C123BH6PGEIR integrates two independent CAN 2.0B-compliant controllers, each with full message object arbitration, filtering, and FIFO support. Both controllers meet ISO 11898-1 physical layer requirements when paired with external CAN transceivers (e.g., SN65HVD230). The TM4C123BH6PGEIR's CAN modules support bit rates up to 1 Mbps and include loopback self-test mode for validation during boot.

Is the TM4C123BH6PGEIR pin-compatible with other devices in the TM4C123x family?

Yes, the TM4C123BH6PGEIR shares identical pinout and package (144-pin LQFP) with other TM4C123x variants including TM4C123GH6PGE and TM4C123BH6ZRB, enabling direct substitution in existing designs where Flash size, temperature grade, or packaging variant differs. This compatibility simplifies migration paths and inventory consolidation - the TM4C123BH6PGEIR can replace these parts without PCB changes when its 256 KB Flash and industrial temperature rating meet design requirements.