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Texas Instruments TM4C123FE6PMI
- Part No.:
- TM4C123FE6PMI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C123FE6PMI.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,024
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Product details
Overview
TM4C123FE6PMI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, and integrated peripherals including dual UARTs, I²C, SSI, 12-bit ADC (12-channel), PWM, and USB 2.0 device interface. It operates across –40°C to +85°C and targets real-time embedded control in industrial automation, motor drives, and smart sensors.
For engineers reviewing the TM4C123FE6PMI datasheet, TM4C123FE6PMI pinout, TM4C123FE6PMI application, or TM4C123FE6PMI equivalent, key selection criteria include its 80 MHz Cortex-M4F core with FPU, 256 KB on-chip flash with EEPROM emulation, USB device support, and temperature-rated QFP-64 package for space-constrained industrial designs.
Technical Context
The TM4C123FE6PMI integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit and memory protection unit (MPU). It supports Thumb-2 instruction set, vector table relocation, and nested vectored interrupt controller (NVIC) with 64 interrupt lines.
System-level integration includes micro-DMA (μDMA) controller with 32 channels, configurable GPIOs with slew-rate control and masking, and clock management via PLL with internal oscillator and external crystal support up to 25 MHz. Power management features deep-sleep modes with wake-on-event capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - delivers deterministic real-time control with hardware FPU for sensor fusion or motor algorithm execution. |
| Flash Memory | 256 KB - sufficient for bootloader, application firmware, and field-upgradable code without external storage. |
| SRAM | 32 KB - supports real-time data buffering, stack/heap allocation, and USB endpoint buffers. |
| ADC | 12-bit, 12-channel, 1 MSPS - enables simultaneous sampling of multiple analog sensors (e.g., current, voltage, temperature) in motor control loops. |
| USB Interface | USB 2.0 Device-only (Full-Speed) - allows direct connection to host PCs for configuration, firmware updates, or HID-class peripheral operation. |
| Temperature Range | –40°C to +85°C - qualified for industrial environments including factory floor controllers and outdoor metering systems. |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and offers full peripheral pin access. |
Pinout & Package
TM4C123FE6PMI is housed in a 64-pin LQFP package (JEDEC MO-220, variant VG) with exposed thermal pad. Pin functions are defined per TI SPMS371E datasheet Rev E (June 2014), with dedicated VDD/VSS pairs, SWD/JTAG debug pins, and multiplexed peripheral signals routed to all four sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power Supply Inputs | Separate digital (VDD), analog (VDDA), and USB PHY (VDDC) rails enable noise isolation for ADC and USB operation. |
| VSS, VSSA, VSSC | Ground Returns | Dedicated analog ground (VSSA) and USB ground (VSSC) reduce coupling between signal domains. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO Ports D/E/F | Configurable as digital I/O, timer/PWM outputs, or peripheral function pins (e.g., UART0 RX/TX on PA0/PA1). |
| USB0VBUS, USB0ID, USB0P, USB0N | USB Physical Layer | Direct Full-Speed USB 2.0 interface - no external transceiver required; ID pin supports OTG detection if enabled. |
| SWCLK, SWDIO | ARM Serial Wire Debug | Two-pin debug interface supporting programming, real-time tracing, and breakpoint debugging without JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware IEEE 754-compliant single-precision FPU accelerates math-intensive tasks like PID tuning or FFT-based signal analysis without software emulation latency. |
| μDMA Controller | 32-channel micro-DMA offloads CPU during high-bandwidth transfers (e.g., ADC-to-memory, UART-to-buffer), preserving 80 MHz core cycles for control logic. |
| EEPROM Emulation | On-chip flash supports EEPROM-like wear-leveling and byte-write abstraction via TivaWare driver library - eliminates need for external nonvolatile memory. |
| Integrated USB PHY | Full-Speed USB 2.0 device interface with internal transceiver and pull-up resistor control - reduces BOM count and board area vs. discrete PHY solutions. |
| Peripheral Multiplexing | Up to 8 alternate functions per GPIO pin (e.g., I²C, SSI, PWM, timer capture) - maximizes peripheral utilization within 64-pin footprint without pin bloat. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers or conveyor drives using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms via Cortex-M4F+FPU, synchronized ADC sampling, and precise PWM generation with dead-time insertion. Use Value: 80 MHz deterministic timing ensures sub-microsecond loop closure; integrated μDMA relieves CPU load during sensor data acquisition and commutation timing. |
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ with wireless telemetry backhaul. IC Role / Device Role / Timing Role: Low-power system orchestrator managing sensor polling, data preprocessing, USB-based configuration, and sleep/wake scheduling. Use Value: –40°C to +85°C rating ensures reliability in unconditioned enclosures; 256 KB flash stores firmware + calibration tables; USB enables field technician reprogramming. |
| Programmable Logic Controller (PLC) I/O Module | USB Human Interface Device (HID) |
|
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs, Modbus RTU over UART, and local status display. IC Role / Device Role / Timing Role: Central controller handling protocol stack, GPIO scanning, UART communication, and watchdog supervision for fail-safe operation. Use Value: Dual UARTs support simultaneous Modbus and debug interfaces; 32 KB SRAM buffers protocol frames; robust reset and NMI handling meets industrial safety requirements. |
Use Scenario: Configurable USB keyboard/mouse emulator for test jigs or kiosk control panels requiring plug-and-play HID enumeration. IC Role / Device Role / Timing Role: USB device controller implementing HID report descriptors, button matrix scanning, and LED feedback via GPIO. Use Value: Integrated USB PHY eliminates external components; TivaWare USB stack provides certified HID class compliance; 64-pin LQFP simplifies layout for compact USB devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Higher flash (256 KB same), but adds 64 KB EEPROM and USB OTG support; identical 80 MHz Cortex-M4F core and pinout. | Supports host-mode USB peripherals (e.g., USB flash drives); EEPROM simplifies data logging without software wear-leveling. | Select TM4C123GH6PM when USB host capability or guaranteed EEPROM endurance is required; TM4C123FE6PMI remains optimal for cost-sensitive device-only USB use cases. |
| STM32F401CEU6 | ARM Cortex-M4F @ 84 MHz, 512 KB flash, 96 KB RAM, but lacks integrated USB PHY - requires external transceiver for USB functionality. | Better memory headroom for complex GUI or protocol stacks; however, USB implementation increases BOM and layout complexity. | Choose STM32F401CEU6 only if larger RAM/flash is critical and external USB PHY integration is acceptable; TM4C123FE6PMI provides simpler, more integrated USB device solution. |
Compared with TM4C123GH6PM, TM4C123FE6PMI trades USB OTG and EEPROM for lower cost and identical device-only USB functionality; versus STM32F401CEU6, it delivers turnkey USB connectivity without external components, at the expense of raw memory capacity.
Availability
TM4C123FE6PMI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and qualified temperature-grade performance.
Supply support for TM4C123FE6PMI 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 focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and consumer markets since 1930.
The Tiva C Series - including TM4C123FE6PMI - was designed specifically for cost-sensitive, real-time embedded applications demanding high peripheral integration, USB connectivity, and industrial temperature resilience without sacrificing ARM Cortex-M4F performance.
FAQ
What is the maximum operating frequency of the TM4C123FE6PMI?
The TM4C123FE6PMI operates at a maximum system clock frequency of 80 MHz, achieved via its internal PLL that accepts input from either the internal precision oscillator (±1% accuracy) or an external crystal up to 25 MHz. This frequency is sustained across the full –40°C to +85°C temperature range and supports deterministic real-time execution of control algorithms in the TM4C123FE6PMI.
Does the TM4C123FE6PMI include a hardware floating-point unit?
Yes, the TM4C123FE6PMI integrates a full IEEE 754-compliant single-precision floating-point unit (FPU) as part of its ARM Cortex-M4F core. This enables efficient execution of math-intensive operations such as trigonometric functions, matrix calculations, and sensor fusion - all without software emulation overhead in the TM4C123FE6PMI.
Can the TM4C123FE6PMI support USB device functionality without external components?
Yes, the TM4C123FE6PMI includes a fully integrated USB 2.0 Full-Speed physical layer (PHY) with internal transceiver, pull-up resistor control, and VBUS sensing. No external USB PHY or level-shifting components are required to implement CDC, HID, or MSC class devices using the TM4C123FE6PMI.
What is the flash memory endurance and write cycle specification for the TM4C123FE6PMI?
The TM4C123FE6PMI features 256 KB of on-chip flash memory rated for a minimum of 100,000 erase/write cycles per sector. When used with TI's TivaWare EEPROM emulation library, it supports byte-level writes and wear leveling - enabling reliable nonvolatile data storage in the TM4C123FE6PMI without external EEPROM.
Is the TM4C123FE6PMI pin-compatible with other Tiva C Series microcontrollers?
The TM4C123FE6PMI uses a 64-pin LQFP package with a pinout aligned to the TM4C123x family baseline, including shared power, ground, debug, and peripheral signal placements. However, specific peripheral mappings (e.g., USB, ADC channel assignments) differ across variants - full functional compatibility requires verification against the TM4C123FE6PMI datasheet and target application requirements.
TM4C123FE6PMI 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:
- 49
- 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:
TM4C123FE6PMI FAQ
1.How can I place an order for TM4C123FE6PMI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123FE6PMI 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 TM4C123FE6PMI reliable?
The price and inventory of TM4C123FE6PMI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123FE6PMI is usually 5 days.
3.What payment methods are accepted for TM4C123FE6PMI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123FE6PMI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123FE6PMI?
TM4C123FE6PMI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123FE6PMI 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 TM4C123FE6PMI?
For technical support, including TM4C123FE6PMI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123FE6PMI requirements.
6.How does Aetrix verify that TM4C123FE6PMI is sourced from the original manufacturer or authorized distributors?
All TM4C123FE6PMI 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 TM4C123FE6PMI meets industry standards.
7.What is the process for return or replacement of TM4C123FE6PMI?
All TM4C123FE6PMI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123FE6PMI, 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 TM4C123FE6PMI part is unused and in its original packaging.
Return procedure for TM4C123FE6PMI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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