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Texas Instruments TM4C123GH6PGEIR
- Part No.:
- TM4C123GH6PGEIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
TM4C123GH6PGEIR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TM4C123GH6PGEIR 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, 12-bit ADC (1 MSPS), and 48 GPIOs in a 144-pin LQFP package. It serves as a main system controller in industrial HMI, motor control, and IoT edge nodes requiring real-time processing and mixed-signal integration.
For engineers reviewing the TM4C123GH6PGEIR datasheet, TM4C123GH6PGEIR pinout, TM4C123GH6PGEIR application, or TM4C123GH6PGEIR equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, deterministic interrupt latency under 12 cycles, and support for TivaWare™ C Series software stack.
Technical Context
The TM4C123GH6PGEIR integrates a single-core ARM Cortex-M4F with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It supports Thumb-2 instruction set, bit-band addressing, and low-latency exception handling with configurable priority grouping.
System-level integration includes a programmable clock tree with PLL, multiple power domains (run/hibernate/sleep), and peripheral-specific clock gating. The hibernation module provides RTC, battery-backed SRAM (2 KB), and wake-up on external event or time match - all operating from VBAT at ≤2 µA typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU and MPU - enables deterministic real-time control with floating-point math acceleration. |
| Memory | 256 KB flash + 32 KB SRAM + 2 KB hibernate SRAM - sufficient for firmware, data buffers, and state retention during deep sleep. |
| ADC | 12-bit, 1 MSPS, 12-channel SAR ADC with hardware averaging - supports precision sensor acquisition in noisy industrial environments. |
| USB | USB 2.0 full-speed device controller with integrated PHY - eliminates need for external transceiver in embedded USB peripherals. |
| Timers | 6 × 32-bit general-purpose timers (GPTM), 2 × watchdog timers, SysTick - enables multi-channel PWM, input capture, and precise timekeeping. |
| I/O | 48 GPIOs with configurable slew rate, drive strength, and interrupt-on-change - supports direct interface to sensors, displays, and actuators without level-shifting. |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and thermal management in industrial enclosures. |
Pinout & Package
TM4C123GH6PGEIR is housed in a 144-pin LQFP package with exposed thermal pad (EP). Pin assignments follow TI's standardized Tiva C Series pin mapping, supporting multiplexed peripheral functions per GPIO bank (Port A–K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital core (VDD), analog (VDDA), and USB PHY (VDDC) rails - require separate filtering for noise isolation between domains. |
| VSS, VSSA, VSSC | Ground returns | Digital ground (VSS), analog ground (VSSA), and USB ground (VSSC) - must be connected to common ground plane with low-inductance paths. |
| USB0_P/N | Differential USB data lines | Full-speed USB 2.0 interface with internal termination - connects directly to USB connector without external resistors or transceivers. |
| PF0–PF4 | GPIO / NMI / UART0 / SSI0 | Multi-function port F pins - PF0 serves as NMI input; others support UART0 or SSI0 when configured, enabling flexible peripheral routing. |
| HIBERNATE_RTCCLK | Hibernate module clock input | Accepts 32.768 kHz crystal or external clock - enables accurate timekeeping and wake-up events during hibernation mode. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernate module with RTC | Retains 2 KB SRAM and maintains real-time clock accuracy using external 32.768 kHz crystal - enables ultra-low-power wake-up scheduling in battery-powered devices. |
| Integrated USB 2.0 PHY | Eliminates external transceiver and reduces BOM count - simplifies USB device implementation for HID, CDC, or mass storage class applications. |
| Hardware CRC engine | Accelerates checksum computation for flash integrity verification and communication protocols - offloads CPU and ensures deterministic timing for safety-critical routines. |
| μDMA controller | 32-channel micro-DMA with scatter-gather support - enables zero-CPU-overhead peripheral-to-memory transfers for ADC sampling, UART streaming, or SPI display updates. |
| Peripheral register locking | Software-configurable write-protection for critical registers (e.g., clock, reset, NVIC) - prevents accidental corruption during interrupt service or fault conditions. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in factory automation systems with position feedback and current sensing. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation via GPTM modules, and communicating status over UART/USB. Use Value: Deterministic 80 MHz execution with <12-cycle interrupt latency ensures timely response to encoder interrupts and current-sense ADC triggers. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure data at 10-second intervals. IC Role / Device Role / Timing Role: System-on-chip integrating sensor interface, data logging, USB configuration port, and hibernation scheduler. Use Value: Hibernate mode draws ≤2 µA while maintaining RTC and 2 KB SRAM - extends battery life to >5 years on CR2032. |
| Human-Machine Interface | USB HID Peripheral |
Use Scenario: Touch-enabled control panel for HVAC systems with local display, button inputs, and network connectivity. IC Role / Device Role / Timing Role: Central MCU managing capacitive touch sensing, LCD driver interface, and Ethernet/UART gateway functions. Use Value: 48 GPIOs with programmable drive strength support direct connection to resistive/capacitive touch overlays and segment LCDs without external drivers. | Use Scenario: Programmable keyboard or custom USB game controller with mechanical switches and RGB LED feedback. IC Role / Device Role / Timing Role: USB device controller implementing HID class protocol with report descriptor customization. Use Value: Integrated USB PHY and dedicated USB interrupt vector enable sub-100 µs response to host polling - meets USB HID timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C1294NCPDT | ARM Cortex-M4F @ 120 MHz, 1 MB flash, integrated Ethernet MAC + PHY, no hibernate RTC | Targets higher-performance networking applications; lacks battery-backed hibernation capability | Select when Ethernet connectivity and larger code space outweigh ultra-low-power hibernation needs. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB SRAM, no integrated USB PHY, different pinout | Requires external USB transceiver; broader ecosystem but no native hibernation module with RTC | Choose for higher compute throughput and richer peripheral set where USB PHY integration is not mandatory. |
Compared with TM4C123GH6PGEIR, TM4C1294NCPDT offers higher clock speed and Ethernet but sacrifices hibernation efficiency, while STM32F407VGT6 delivers greater memory and performance at the cost of added BOM complexity and missing integrated RTC+VBAT retention.
Availability
TM4C123GH6PGEIR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interfaces, and USB HID peripherals requiring stable component supply across long-lifecycle production programs.
Supply support for TM4C123GH6PGEIR 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 digital signal processing technologies since 1930.
The TM4C123 family was designed specifically for cost-sensitive, real-time embedded applications demanding USB connectivity, analog integration, and ultra-low-power hibernation - targeting industrial control, building automation, and portable instrumentation.
FAQ
What is the maximum operating frequency of the TM4C123GH6PGEIR?
The TM4C123GH6PGEIR operates at a maximum system clock frequency of 80 MHz, achieved via its on-chip PLL that accepts a 4–25 MHz crystal or external clock source. This frequency is fully supported across all voltage and temperature ranges specified in the datasheet, and all peripherals - including USB, ADC, and timers - are rated for synchronous operation at this speed without derating.
Does the TM4C123GH6PGEIR include an integrated USB physical layer (PHY)?
Yes, the TM4C123GH6PGEIR integrates a full-speed USB 2.0 PHY compliant with the USB specification. It supports USB device mode only and requires no external transceiver. The USB0_P and USB0_N pins connect directly to the USB connector, and internal termination resistors eliminate the need for external 1.5 kΩ pull-up or 15 kΩ pull-down components.
How much hibernate SRAM does the TM4C123GH6PGEIR provide, and what is retained during hibernation?
The TM4C123GH6PGEIR provides 2 KB of battery-backed hibernate SRAM that remains powered and retains data when the main VDD supply is removed and the device enters hibernation mode. In addition, the hibernate module maintains the real-time clock (RTC), hibernate control registers, and wake-up logic - all operating from VBAT at typical current draw of 2 µA.
What development tools and software support are available for the TM4C123GH6PGEIR?
Texas Instruments provides TivaWare™ C Series software, including peripheral driver libraries, USB stack, and FreeRTOS porting examples. Development is supported by Code Composer Studio (CCS), IAR Embedded Workbench, and GCC-based toolchains. Hardware evaluation platforms include the TM4C123G LaunchPad (EK-TM4C123GXL) and TM4C123GH6PGEIR-compatible custom carrier boards.
Is the TM4C123GH6PGEIR RoHS-compliant and qualified for industrial temperature range?
Yes, the TM4C123GH6PGEIR is RoHS-compliant and qualified for operation across the industrial temperature range of –40°C to +85°C. Its 144-pin LQFP package meets JEDEC standards for moisture sensitivity level (MSL) 3, and TI provides full qualification reports including HTOL, ESD, and thermal cycling data upon request through authorized distribution channels.
TM4C123GH6PGEIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, QEI, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, Motion PWM, POR, WDT
- Number of I/O:
- 105
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.08V ~ 3.63V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123GH6PGEIR FAQ
1.How can I place an order for TM4C123GH6PGEIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123GH6PGEIR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TM4C123GH6PGEIR reliable?
The price and inventory of TM4C123GH6PGEIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123GH6PGEIR is usually 5 days.
3.What payment methods are accepted for TM4C123GH6PGEIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123GH6PGEIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123GH6PGEIR?
TM4C123GH6PGEIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123GH6PGEIR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TM4C123GH6PGEIR?
For technical support, including TM4C123GH6PGEIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123GH6PGEIR requirements.
6.How does Aetrix verify that TM4C123GH6PGEIR is sourced from the original manufacturer or authorized distributors?
All TM4C123GH6PGEIR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TM4C123GH6PGEIR meets industry standards.
7.What is the process for return or replacement of TM4C123GH6PGEIR?
All TM4C123GH6PGEIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123GH6PGEIR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TM4C123GH6PGEIR part is unused and in its original packaging.
Return procedure for TM4C123GH6PGEIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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