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Texas Instruments TM4C123GH6PGEI
- Part No.:
- TM4C123GH6PGEI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
TM4C123GH6PGEI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:5,453
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Product details
Overview
TM4C123GH6PGEI 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/host/OTG controller, 12-bit ADC (1 MSPS, 12 channels), and 49 GPIOs in a 144-pin LQFP package. It serves as the main application processor in industrial control panels requiring real-time motor sequencing and analog sensor fusion.
For engineers reviewing the TM4C123GH6PGEI datasheet, TM4C123GH6PGEI pinout, TM4C123GH6PGEI application, or TM4C123GH6PGEI equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, deterministic FPU-enabled control loop execution, and support for TivaWare peripheral driver library integration.
Technical Context
The TM4C123GH6PGEI integrates a single-core ARM Cortex-M4F with hardware floating-point unit and NVIC supporting up to 80 interrupts. Its system architecture includes a 32-bit AHB bus matrix connecting flash, SRAM, peripherals, and DMA controller.
It features a dedicated hibernation module with VBAT input, 2 KB of battery-backed RAM, and independent 32.768 kHz RTC oscillator - enabling sub-5 µA deep-sleep operation while maintaining timekeeping and wake-up capability via external pins or RTC match.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables deterministic real-time control with hardware FPU for motor vector math. |
| Flash Memory | 256 KB - sufficient for dual-bank firmware updates and bootloader + application partitioning. |
| SRAM | 32 KB - supports real-time data buffering, stack/heap for FreeRTOS, and USB endpoint buffers. |
| ADC | 12-bit, 1 MSPS, 12-channel - captures analog sensor inputs (e.g., current/voltage/temp) at control-loop rates. |
| USB Interface | USB 2.0 Device/Host/OTG with integrated PHY - eliminates external transceiver, reduces BOM cost and PCB area. |
| Hibernate Current | ≤5 µA with RTC active - enables battery-powered remote I/O nodes with multi-year operation on coin cell. |
| GPIO Count | 49 programmable I/Os - supports mixed digital I/O, PWM outputs, and analog inputs across multiple ports (A–K). |
Pinout & Package
Package: 144-pin LQFP (20 × 20 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital core (VDDC), analog (VDDA), and I/O (VDD) - enable noise isolation for ADC and USB PHY. |
| VSS, VSSA, VSSC | Ground returns | Separate analog/digital/power ground planes reduce coupling noise in mixed-signal operation. |
| USB0EPEN, USB0VBUS | USB OTG control | Enables host/device mode detection and VBUS sensing without external comparators. |
| HIB, RTCCLK, VBAT | Hibernation interface | Direct connection to backup battery and RTC crystal - allows autonomous low-power timekeeping during main power loss. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO bank terminals | Support alternate functions including UART, I²C, SPI, PWM, and analog inputs - configurable per-pin via GPIODIR/GPIODEN registers. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware IEEE 754 single-precision FPU accelerates PID, Clarke/Park transforms, and sensor fusion algorithms by >10× vs software emulation. |
| Hibernation Module | Integrated RTC, 2 KB battery-backed SRAM, and wake-on-RTC-match or external pin - enables zero-software-overhead sleep/wake transitions. |
| USB 2.0 PHY | On-die USB transceiver with integrated termination resistors - eliminates 6 external components and simplifies ESD protection layout. |
| μDMA Controller | 32-channel scatter-gather DMA with peripheral-to-memory and memory-to-peripheral transfers - offloads CPU during ADC sampling or UART streaming. |
| Peripheral Integration | 8 UARTs, 4 SPI, 4 I²C, 2 CAN, 2 QEI, 8 PWM generators - supports full industrial communication stack without external bridge ICs. |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and thermal monitoring in HVAC fan modules. IC Role / Device Role / Timing Role: Main controller executing field-oriented control (FOC) algorithm using FPU-accelerated math and PWM timing synchronized to ADC sampling. Use Value: 80 MHz Cortex-M4F + hardware FPU delivers <5 µs interrupt latency and sub-microsecond PWM jitter - critical for torque ripple reduction. | Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and RS-485/IR communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, real-time clock, secure firmware updates, and dual-interface communication stack. Use Value: Integrated hibernation module maintains accurate time and retains tamper logs during mains outage using coin-cell backup. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Gateway |
Use Scenario: Remote I/O expansion node with 16 digital inputs, 8 relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Deterministic real-time I/O scheduler coordinating GPIO state changes, timer-based pulse generation, and serial protocol framing. Use Value: 49 GPIOs with configurable slew rate and drive strength support direct interfacing to industrial sensors and actuators without level-shifting. | Use Scenario: BACnet/IP to KNX gateway bridging HVAC, lighting, and occupancy systems in commercial buildings. IC Role / Device Role / Timing Role: Dual-role network processor handling Ethernet MAC, UDP/IP stack, and KNX physical layer timing via UART+GPIO bit-banging. Use Value: On-chip USB device mode enables field technician configuration via USB-C cable - no need for external debug probe or serial adapter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, no integrated USB PHY, requires external transceiver. | Better raw compute throughput but higher BOM cost and layout complexity for USB connectivity. | Select when higher clock speed and larger code space outweigh USB integration benefits. |
| MSP432P401RIPZT | ARM Cortex-M4F @ 48 MHz, 2 MB flash, ultra-low-power design (80 µA/MHz), no USB OTG support. | Optimized for battery life over USB functionality; lacks host/OTG capability and hibernation RTC. | Select for energy-constrained wireless sensor nodes where USB is unnecessary and sleep current is critical. |
Compared with STM32F407VGT6 and MSP432P401RIPZT, the TM4C123GH6PGEI uniquely balances USB integration, hibernation intelligence, and industrial-grade peripheral count - making it optimal for cost-sensitive, USB-connected edge controllers needing robust low-power operation.
Availability
TM4C123GH6PGEI is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, PLC I/O modules, and building automation gateways requiring stable component supply and long-term lifecycle assurance.
Supply support for TM4C123GH6PGEI 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 Tiva C Series - including the TM4C123GH6PGEI - was designed specifically for real-time industrial control applications requiring integrated connectivity, deterministic timing, and low-power hibernation without external support ICs.
FAQ
What is the maximum operating frequency of the TM4C123GH6PGEI?
The TM4C123GH6PGEI operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL that can be configured to multiply the input crystal or internal oscillator. This frequency is fully supported across the industrial temperature range (–40°C to +85°C) and enables deterministic execution of real-time control algorithms. The TM4C123GH6PGEI achieves this performance while maintaining low power consumption through dynamic clock gating and sleep mode entry.
Does the TM4C123GH6PGEI include an integrated USB physical layer?
Yes, the TM4C123GH6PGEI integrates a full-speed USB 2.0 physical layer (PHY) supporting device, host, and OTG modes. This eliminates the need for external USB transceivers, reducing bill-of-materials cost and PCB footprint. The USB module includes dedicated VBUS sensing, session request, and ID pin handling - all managed in hardware without CPU intervention. The TM4C123GH6PGEI's USB implementation is compliant with USB 2.0 specification and validated with TI's TivaWare USB stack.
How much battery-backed memory does the TM4C123GH6PGEI provide in hibernate mode?
The TM4C123GH6PGEI provides 2 KB of battery-backed SRAM accessible during hibernate mode, retained via the VBAT pin. This memory remains powered and functional while the rest of the device draws ≤5 µA, enabling storage of calibration data, event logs, or RTC alarm settings across power cycles. The TM4C123GH6PGEI also includes a dedicated hibernation register block and 32-bit RTC counter - all operational under VBAT without main supply.
Which development tools are officially supported for the TM4C123GH6PGEI?
Texas Instruments officially supports the TM4C123GH6PGEI with Code Composer Studio (CCS) IDE, IAR Embedded Workbench, and Keil MDK-ARM. TI's TivaWare Peripheral Driver Library provides production-ready drivers for all on-chip peripherals, and the EK-TM4C123GXL LaunchPad evaluation kit offers full debugging, programming, and example-based learning. The TM4C123GH6PGEI is also compatible with OpenOCD and Segger J-Link debug probes via SWD interface.
What analog capabilities does the TM4C123GH6PGEI offer?
The TM4C123GH6PGEI integrates a 12-bit successive-approximation ADC with up to 1 MSPS sampling rate and 12 input channels. It supports hardware averaging (up to 64 samples), differential input mode, and an internal temperature sensor. Four independent sample sequencers allow concurrent triggering from timers, GPIOs, or software - enabling synchronized acquisition across multiple sensors. The TM4C123GH6PGEI's ADC is calibrated at factory and maintains accuracy over the full industrial temperature range.
TM4C123GH6PGEI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tray
- 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:
TM4C123GH6PGEI FAQ
1.How can I place an order for TM4C123GH6PGEI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123GH6PGEI 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 TM4C123GH6PGEI reliable?
The price and inventory of TM4C123GH6PGEI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123GH6PGEI is usually 5 days.
3.What payment methods are accepted for TM4C123GH6PGEI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123GH6PGEI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123GH6PGEI?
TM4C123GH6PGEI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123GH6PGEI 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 TM4C123GH6PGEI?
For technical support, including TM4C123GH6PGEI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123GH6PGEI requirements.
6.How does Aetrix verify that TM4C123GH6PGEI is sourced from the original manufacturer or authorized distributors?
All TM4C123GH6PGEI 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 TM4C123GH6PGEI meets industry standards.
7.What is the process for return or replacement of TM4C123GH6PGEI?
All TM4C123GH6PGEI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123GH6PGEI, 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 TM4C123GH6PGEI part is unused and in its original packaging.
Return procedure for TM4C123GH6PGEI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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