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Texas Instruments TM4C123FH6PMIR
- Part No.:
- TM4C123FH6PMIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C123FH6PMIR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
TM4C123FH6PMIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated USB 2.0 OTG, PWM, ADC (12-bit, 1MSPS), and multiple serial interfaces (UART, I²C, SSI). It operates at up to 80 MHz and supports industrial temperature range (–40°C to +105°C) in a 64-pin LQFP package. It serves as a main system controller in motor drives, industrial PLCs, and smart sensor nodes.
For engineers reviewing the TM4C123FH6PMIR datasheet, TM4C123FH6PMIR pinout, TM4C123FH6PMIR application, or TM4C123FH6PMIR equivalent, key selection criteria include its integrated USB PHY, deterministic FPU performance for real-time control, 12-channel PWM with dead-band generation, and support for TivaWare™ software stack in resource-constrained embedded designs.
Technical Context
The TM4C123FH6PMIR integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit and memory protection unit (MPU), enabling deterministic execution of control algorithms and secure partitioning of firmware tasks. It features a 32-bit bus matrix with separate AHB/APB bridges, supporting concurrent peripheral access without arbitration stalls.
Its analog subsystem includes two independent 12-bit ADCs with up to 1MSPS aggregate sampling rate, configurable sequencers, and internal temperature sensor - all synchronized to PWM triggers for precise motor current sensing. The USB controller implements full-speed OTG with integrated PHY and session request protocol (SRP) support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware FPU and MPU - enables real-time signal processing and safe multitasking. |
| Flash Memory | 256 KB on-chip flash with ECC and 1K erase sectors - supports robust firmware updates and field reprogramming. |
| RAM | 32 KB SRAM with parity protection - sufficient for control loop buffers, communication stacks, and TivaWare driver objects. |
| ADC | Dual 12-bit, 1MSPS SAR ADC with 16-channel input mux and hardware averaging - suitable for high-fidelity current/voltage sensing in motor control. |
| PWM | 8 PWM generator blocks (16 outputs), each with dead-band, fault, and sync logic - directly drives 3-phase inverter gate drivers. |
| USB | Full-speed USB 2.0 OTG with integrated PHY and SRP - enables host/peripheral mode without external transceiver. |
| Temperature Range | –40°C to +105°C industrial grade - qualified for under-hood automotive auxiliary modules and factory-floor controllers. |
Pinout & Package
TM4C123FH6PMIR is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series pinout layout, optimized for mixed-signal routing and EMI resilience.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate digital (VDD), analog (VDDA), and core (VDDC) rails enable noise isolation for ADC and PLL operation. |
| GND, GNDA, GNDC | Ground returns | Dedicated analog (GNDA) and core (GNDC) grounds minimize coupling between sensitive analog and switching digital domains. |
| USB0VBUS, USB0ID | USB OTG detection | Hardware-level VBUS sensing and ID pin enable automatic host/peripheral role negotiation without firmware polling. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | SSI0 interface signals | Configurable master/slave SPI-compatible interface supporting daisy-chain and multi-drop configurations for sensor arrays. |
| U0RX, U0TX, U1RX, U1TX | UART channel I/O | Dual UARTs with full modem handshaking (RTS/CTS) and IrDA support - ideal for debug console and industrial protocol gateways. |
| PH0, PH1 | Crystal oscillator inputs | Supports 4–25 MHz crystal or external clock source for precision system timing and USB frame synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 OTG PHY | Eliminates need for external transceiver; reduces BOM cost and PCB area while supporting device/host/OTG roles. |
| Hardware FPU (IEEE 754) | Accelerates trigonometric, filter, and PID computations - cuts execution time by >10× vs. software emulation in motor control loops. |
| μDMA controller (32 channels) | Offloads CPU from data movement between peripherals and memory - enables zero-CPU-overhead ADC-to-FFT or UART-to-SRAM transfers. |
| Programmable GPIO commit registers | Prevents accidental register writes during runtime - enhances reliability in safety-critical applications like industrial I/O modules. |
| ROM-based bootloader | Enables in-field firmware updates via UART, USB, or I²C without external programmer - simplifies maintenance in deployed systems. |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers and conveyor drives using field-oriented control (FOC). IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing PWM generation, sampling phase currents via ADC, and communicating status over UART. Use Value: Integrated 12-channel PWM with dead-band and ADC synchronization eliminates external timing ICs and reduces jitter in current sampling windows. |
Use Scenario: Aggregation and preprocessing of temperature, humidity, and vibration data from multiple MEMS sensors in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Sensor fusion hub performing local FFT, threshold detection, and buffered reporting via USB or UART to gateway. Use Value: Hardware μDMA and FPU accelerate sensor data pipeline while low-power sleep modes extend battery life in wireless deployments. |
| 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 and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time I/O manager handling scan cycle timing, digital filtering, and protocol stack execution. Use Value: Deterministic interrupt latency (<12 cycles) and ROM-based Modbus stack ensure sub-millisecond response in hard real-time PLC cycles. |
Use Scenario: Embedded HID device such as industrial test jig controller or lab equipment front panel with USB keyboard/mouse emulation. IC Role / Device Role / Timing Role: USB device controller presenting HID class descriptors and translating GPIO/button events into report packets. Use Value: On-chip USB PHY and dedicated HID class firmware in ROM reduce development time and eliminate external USB interface ICs. |
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 power and larger footprint; lacks ROM bootloader and GPIO commit protection. | Select when higher clock speed and larger memory are required, and USB host capability is not needed. |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB flash, no FPU, no analog peripherals - USB relies on software stack and external PHY for device mode. | Lower cost and power, but unsuitable for analog-intensive or deterministic FPU workloads like motor control. | Select for cost-sensitive, digitally focused applications where analog integration and real-time determinism are secondary. |
Compared with STM32F407VGT6 and RP2040, the TM4C123FH6PMIR delivers balanced analog/digital integration, industrial temperature qualification, and production-ready USB OTG with minimal external components - making it optimal for space-constrained, mixed-signal industrial controllers.
Availability
TM4C123FH6PMIR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, and programmable logic controller (PLC) I/O modules requiring stable component supply across extended product lifecycles.
Supply support for TM4C123FH6PMIR 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 connectivity technologies for industrial, automotive, and consumer markets.
The TM4C123FH6PMIR belongs to TI's Tiva™ C Series microcontrollers, designed specifically for cost-sensitive, real-time embedded applications demanding integrated analog peripherals, USB connectivity, and deterministic control execution in harsh environments.
FAQ
What is the maximum operating frequency of the TM4C123FH6PMIR?
The TM4C123FH6PMIR operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL locked to an external 4–25 MHz crystal or oscillator. This frequency is sustained across the full industrial temperature range (–40°C to +105°C) and supports deterministic execution of control loops and communication stacks without throttling.
Does the TM4C123FH6PMIR include a hardware floating-point unit?
Yes, the TM4C123FH6PMIR integrates a full IEEE 754-compliant single-precision hardware FPU within its ARM Cortex-M4F core. This enables efficient execution of trigonometric, logarithmic, and matrix operations - critical for real-time motor control, sensor fusion, and digital power conversion algorithms without software emulation overhead.
How many ADC channels does the TM4C123FH6PMIR support, and what is its sampling rate?
The TM4C123FH6PMIR features two independent 12-bit SAR ADCs with up to 16 input channels each, configurable via multiplexer. Its aggregate sampling rate reaches 1 million samples per second (1MSPS), with hardware averaging and programmable sample-and-hold timing - enabling high-resolution current sensing and thermal monitoring in motor drives and power supplies.
Is the TM4C123FH6PMIR pin-compatible with other Tiva C Series microcontrollers?
The TM4C123FH6PMIR uses a 64-pin LQFP package with a pinout compatible across the TM4C123x family (e.g., TM4C123GH6PM, TM4C123BH6PM), differing only in flash/RAM size and peripheral enablement. Pin compatibility allows direct substitution within the same package variant, provided firmware accounts for disabled peripherals in lower-tier variants.
What development tools and software support are available for the TM4C123FH6PMIR?
Texas Instruments provides full support for the TM4C123FH6PMIR through TivaWare™ Peripheral Driver Library, Code Composer Studio IDE, and Energia Arduino-compatible framework. Evaluation kits include the TM4C123G LaunchPad and EK-TM4C123GXL, offering JTAG debugging, onboard USB programming, and example projects for USB, PWM, and ADC use cases.
TM4C123FH6PMIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-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:
- 49
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123FH6PMIR FAQ
1.How can I place an order for TM4C123FH6PMIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123FH6PMIR 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 TM4C123FH6PMIR reliable?
The price and inventory of TM4C123FH6PMIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123FH6PMIR is usually 5 days.
3.What payment methods are accepted for TM4C123FH6PMIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123FH6PMIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123FH6PMIR?
TM4C123FH6PMIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123FH6PMIR 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 TM4C123FH6PMIR?
For technical support, including TM4C123FH6PMIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123FH6PMIR requirements.
6.How does Aetrix verify that TM4C123FH6PMIR is sourced from the original manufacturer or authorized distributors?
All TM4C123FH6PMIR 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 TM4C123FH6PMIR meets industry standards.
7.What is the process for return or replacement of TM4C123FH6PMIR?
All TM4C123FH6PMIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123FH6PMIR, 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 TM4C123FH6PMIR part is unused and in its original packaging.
Return procedure for TM4C123FH6PMIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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