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Texas Instruments TM4C123GE6PMI
- Part No.:
- TM4C123GE6PMI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C123GE6PMI.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,623
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Product details
Overview
TM4C123GE6PM 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, and 12-bit ADC with 12 channels - deployed in industrial motor control, smart sensor nodes, and USB-connected embedded gateways.
For engineers reviewing the TM4C123GE6PM datasheet, TM4C123GE6PM pinout, TM4C123GE6PM application, or TM4C123GE6PM equivalent, key selection criteria include its single-precision FPU support, hibernation module with RTC and battery-backed memory, 64-pin LQFP package with GPIO remapping capability, and full TivaWare™ software stack compatibility.
Technical Context
The TM4C123GE6PM integrates a 32-bit ARM Cortex-M4F core with hardware floating-point unit and memory protection unit (MPU), enabling deterministic real-time control with IEEE 754-compliant math operations. It supports Thumb-2 instruction set and includes NVIC with 64 interrupt lines and configurable priority grouping.
System-level integration includes a hibernation module with dedicated 32.768 kHz RTC oscillator, battery-backed RAM (2 KB), and VBAT monitoring; plus μDMA with 32-channel controller supporting peripheral-to-memory, memory-to-peripheral, and memory-to-memory transfers without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables real-time signal processing with hardware FPU for motor control algorithms. |
| Flash Memory | 256 KB - sufficient for complex firmware with bootloader, USB stack, and application logic in single-image deployment. |
| SRAM | 32 KB - supports multiple task stacks, DMA buffers, and real-time data buffering in FreeRTOS or bare-metal systems. |
| ADC | 12-bit, 1 MSPS, 12-channel - delivers high-resolution analog sensing for temperature, current, and voltage monitoring in closed-loop systems. |
| USB Interface | USB 2.0 Device/Host/OTG - allows direct connection to PCs, HID peripherals, or USB mass storage without external PHY. |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and offers full GPIO remapping via bit-band aliasing. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor metering equipment. |
Pinout & Package
TM4C123GE6PM is housed in a 64-pin LQFP package (Pb-free, RoHS-compliant) with exposed thermal pad. Pin functions are fully configurable via GPIO AFSEL and AMSEL registers, supporting multiplexed peripheral assignment across most I/O pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital (3.3 V), analog (3.3 V), and core (1.2 V) rails - require separate decoupling per datasheet layout guidelines. |
| GND, GNDA, GNDC | Ground references | Analog ground isolation prevents noise coupling into ADC and comparator circuits during mixed-signal operation. |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role switching between host/device based on VBUS presence and ID pin state. |
| PD0–PD7, PE0–PE5, etc. | Configurable GPIO | All 43 GPIOs support digital input/output, interrupts, and peripheral function mapping (e.g., UART0, PWM, I²C). |
| PF0–PF4 | NMI / User buttons / LEDs | PF0 doubles as NMI input; PF4 supports crystal oscillator output; all support wake-from-hibernate functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision math enables fast PID tuning, FFT-based vibration analysis, and sensor fusion without software emulation overhead. |
| Hibernation Module | Retains 2 KB RAM and RTC time with <1 µA current draw using VBAT - extends battery life in remote sensor deployments. |
| μDMA Controller | 32-channel engine offloads CPU during ADC sampling, UART streaming, or PWM waveform generation - improves real-time determinism. |
| Peripheral Pin Multiplexing | Each GPIO supports up to 8 alternate functions via register-controlled mapping - simplifies board layout and enables flexible peripheral routing. |
| TivaWare™ Software | TI-provided driver library, USB stack, and RTOS abstraction layer - reduces firmware development time by >40% versus bare-metal bring-up. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time motion controller executing field-oriented control (FOC) at 20 kHz PWM frequency with synchronized ADC sampling. Use Value: Cortex-M4F FPU computes Clarke/Park transforms in <1.2 µs; hibernation mode enables low-power idle states between motion cycles. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with periodic wireless upload. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator managing ADC acquisition, RTC-triggered wake-up, and USB/UART data export. Use Value: 2 KB battery-backed RAM preserves calibration data and event logs during power loss; <1 µA hibernate current extends 2-year battery life. |
| USB Human Interface Device | Programmable Logic Controller I/O Module |
Use Scenario: Custom HID device emulating keyboard/mouse with programmable macros and LED indicators. IC Role / Device Role / Timing Role: USB device controller interfacing with PC host while managing local button matrix and RGB LED timing. Use Value: Integrated USB PHY eliminates external transceiver; GPIO remapping allows compact 64-pin layout with full HID descriptor support. | Use Scenario: DIN-rail mounted I/O expansion module with digital input/output, analog input, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Central controller handling protocol parsing, I/O scanning, and deterministic scan cycle timing (10–100 ms). Use Value: μDMA transfers Modbus frame data to UART without CPU load; watchdog timer ensures fail-safe reset on communication timeout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F401CEU6 | ARM Cortex-M4F @ 84 MHz, 512 KB flash, no integrated USB PHY - requires external transceiver for full-speed USB. | Lacks hibernation module and battery-backed RAM; uses different clock tree and reset architecture. | Preferred when larger flash and Ethernet MAC are needed; not drop-in due to pinout and USB interface differences. |
| EFM32GG332F256G | ARM Cortex-M3 @ 48 MHz, 256 KB flash, ultra-low-power hibernate (<200 nA), no USB - optimized for energy harvesting. | No USB or FPU; superior sleep current but lower compute throughput for real-time control. | Chosen for battery lifetime-critical sensor nodes where USB connectivity is unnecessary and FPU is unused. |
Compared with STM32F401CEU6 and EFM32GG332F256G, the TM4C123GE6PM uniquely combines USB 2.0 device/host/OTG with integrated PHY, hibernation-optimized power management, and full TivaWare toolchain support - making it optimal for USB-connected industrial edge devices requiring deterministic real-time response.
Availability
TM4C123GE6PM 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 and long-term production continuity.
Supply support for TM4C123GE6PM 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 TM4C123GE6PM belongs to TI's Tiva C Series - designed specifically for cost-sensitive, performance-driven embedded applications requiring USB connectivity, real-time control, and robust industrial qualification.
FAQ
What is the maximum operating frequency of the TM4C123GE6PM?
The TM4C123GE6PM operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL that accepts input from the main oscillator (4–25 MHz) or precision internal 16 MHz RC oscillator. This frequency enables real-time execution of control loops and USB packet processing without throttling. The TM4C123GE6PM maintains timing compliance across its full –40°C to +85°C industrial temperature range when supplied with stable 3.3 V power and proper decoupling.
Does the TM4C123GE6PM include an integrated USB physical layer (PHY)?
Yes, the TM4C123GE6PM integrates a full-speed USB 2.0 PHY compliant with USB specification revision 2.0. It supports device, host, and OTG modes without requiring external transceivers. The TM4C123GE6PM uses dedicated USB0VBUS and USB0ID pins for automatic role detection and includes internal pull-up/pull-down resistors for enumeration. This integration reduces BOM count and PCB area compared to MCU+external PHY solutions.
How much battery-backed memory does the TM4C123GE6PM provide in hibernate mode?
The TM4C123GE6PM provides 2 KB of battery-backed SRAM accessible during hibernate mode, retaining data with typical current draw below 1 µA when powered from VBAT. This memory is mapped to a fixed address range and remains readable/writable while the main CPU and peripherals are powered down. The TM4C123GE6PM also includes a dedicated 32.768 kHz RTC oscillator and calendar functions, enabling time-stamped logging even during extended power-off periods.
Can the TM4C123GE6PM execute floating-point operations in hardware?
Yes, the TM4C123GE6PM incorporates a single-precision IEEE 754-compliant Floating-Point Unit (FPU) tightly coupled to its ARM Cortex-M4F core. This allows hardware acceleration of addition, multiplication, division, square root, and trigonometric functions - critical for motor control, sensor fusion, and digital filtering. The TM4C123GE6PM supports both hard-float and soft-float ABIs, and the FPU status is preserved across context switches when using TI's TivaWare™ or CMSIS-compliant RTOS kernels.
What debug interfaces are supported by the TM4C123GE6PM?
The TM4C123GE6PM supports JTAG and Serial Wire Debug (SWD) interfaces via dedicated pins (TCK, TMS, TDI, TDO, SWDIO, SWCLK). Both protocols enable full-featured debugging including breakpoints, watchpoints, memory inspection, and real-time trace using TI's XDS100v3 or third-party ARM-compliant debug probes. The TM4C123GE6PM implements ARM CoreSight components including the SWO trace port for printf-style instrumentation without halting execution.
TM4C123GE6PMI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-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:
- 43
- Program Memory Size:
- 128KB (128K 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123GE6PMI FAQ
1.How can I place an order for TM4C123GE6PMI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123GE6PMI 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 TM4C123GE6PMI reliable?
The price and inventory of TM4C123GE6PMI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123GE6PMI is usually 5 days.
3.What payment methods are accepted for TM4C123GE6PMI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123GE6PMI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123GE6PMI?
TM4C123GE6PMI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123GE6PMI 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 TM4C123GE6PMI?
For technical support, including TM4C123GE6PMI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123GE6PMI requirements.
6.How does Aetrix verify that TM4C123GE6PMI is sourced from the original manufacturer or authorized distributors?
All TM4C123GE6PMI 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 TM4C123GE6PMI meets industry standards.
7.What is the process for return or replacement of TM4C123GE6PMI?
All TM4C123GE6PMI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123GE6PMI, 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 TM4C123GE6PMI part is unused and in its original packaging.
Return procedure for TM4C123GE6PMI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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