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Texas Instruments TM4C123FH6PMTR
- Part No.:
- TM4C123FH6PMTR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C123FH6PMTR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
TM4C123FH6PMTR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated analog peripherals including dual 12-bit ADCs (1 MSPS), 8 PWM outputs, and USB 2.0 device interface. It operates at up to 80 MHz, supports -40°C to +105°C industrial temperature range, and targets real-time motor control and sensor hub applications.
For engineers reviewing the TM4C123FH6PMTR datasheet, TM4C123FH6PMTR pinout, TM4C123FH6PMTR application, or TM4C123FH6PMTR equivalent, key selection criteria include its on-chip FPU for deterministic floating-point math, 48-pin LQFP package with configurable GPIOs, USB device stack support, and hardware-enforced memory protection unit (MPU) for safety-critical firmware partitioning.
Technical Context
The TM4C123FH6PMTR integrates a 32-bit ARM Cortex-M4F core with single-precision floating-point unit and 16 KB instruction cache, enabling cycle-accurate execution of control algorithms. Its system-level integration includes a 400-kSPS 12-bit ADC with eight sample sequencers and hardware averaging, plus a 16-channel μDMA controller supporting peripheral-to-memory transfers without CPU intervention.
Peripherals are clocked via a programmable PLL with multiple internal dividers, allowing independent configuration of system, USB, and ADC clocks. The device implements ARM's NVIC with 64 interrupt lines, priority grouping, and tail-chaining for sub-12-cycle interrupt latency-critical for closed-loop timing in motion control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU and 16 KB I-Cache |
| Memory | 256 KB flash (with ECC), 32 KB SRAM, 2 KB EEPROM |
| ADC | Dual 12-bit, 1 MSPS, 12-channel, with hardware averaging & temperature sensor |
| PWM | 8 PWM outputs (4 generator blocks), 16-bit resolution, dead-band control |
| Communication | USB 2.0 Device, 2x UART, 2x SSI, 2x I²C, CAN 2.0A/B |
| Timers | 6x 32-bit GPTM (12x 16-bit), 2x watchdog timers, SysTick |
| Package | 48-pin LQFP (7 mm × 7 mm), RoHS-compliant, industrial temp (-40°C to +105°C) |
Pinout & Package
TM4C123FH6PMTR is housed in a 48-pin LQFP package with 0.5 mm pitch, exposing all major peripherals through multiplexed GPIOs. Pin assignments support simultaneous USB device operation, analog acquisition, and high-resolution PWM generation without external glue logic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate domains for digital core (VDDC), analog (VDDA), and I/O (VDD); enable noise isolation for ADC and USB PHY |
| GND, GNDA, GNDC | Ground returns | Dedicated analog ground (GNDA) and core ground (GNDC) minimize coupling between sensitive analog and switching digital paths |
| USB0DP/USB0DM | USB 2.0 differential pair | Integrated transceiver with 1.5 kΩ pull-up resistor; supports full-speed (12 Mbps) device mode only |
| PD0/PD1 | UART0 RX/TX | Default UART0 interface; also configurable as GPIO or SSI0 clock/data; supports auto-baud detection |
| PE0–PE3 | ADC0 inputs (AIN0–AIN3) | Four dedicated analog input pins with programmable gain stage; share physical pins with GPIO but require analog mode enable |
| PF0–PF4 | GPIO / NMI / SW2 | Multi-function port F; PF0 serves as non-maskable interrupt input; PF4 is factory-trimmed internal reference for ADC |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision math enables real-time PID and sensor fusion without software emulation overhead |
| Memory Protection Unit (MPU) | Configurable regions enforce privilege separation between application, bootloader, and driver code-required for IEC 61508 SIL2 compliance |
| μDMA Controller | 16-channel controller offloads ADC sampling, UART transmission, and PWM updates from CPU-reducing ISR latency by >90% |
| Integrated USB PHY | On-die USB 2.0 transceiver eliminates need for external PHY chip, reducing BOM cost and PCB area in HID and CDC-class devices |
| Hardware Averaging ADC | Up to 64-sample hardware averaging per conversion reduces noise floor by 6 dB without CPU cycles or buffer management |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time control unit executing field-oriented control (FOC) algorithm with synchronized PWM, ADC sampling, and fault response within 1.2 µs. Use Value: Integrated FPU and 80 MHz deterministic execution deliver sub-microsecond loop timing; dual ADCs capture phase currents simultaneously with 12-bit resolution. |
Use Scenario: Multi-sensor environmental node aggregating temperature, humidity, pressure, and gas readings for edge preprocessing. IC Role / Device Role / Timing Role: Central sensor fusion processor managing concurrent I²C/SPI sensor reads, local calibration, and USB data streaming. Use Value: Hardware μDMA moves sensor data directly into SRAM while CPU computes compensation; on-chip EEPROM stores calibration coefficients across power cycles. |
| USB Human Interface Device | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Industrial keyboard/mouse with ESD-hardened USB interface and customizable key mapping. IC Role / Device Role / Timing Role: USB HID class device handling report generation, debouncing, and low-latency host communication. Use Value: Integrated USB PHY and TivaWare HID stack eliminate external components; 48 MHz USB clock derived from internal PLL ensures timing compliance. |
Use Scenario: DIN-rail mounted I/O expansion module with isolated digital inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus commands to GPIO/PWM control with deterministic response under 5 ms. Use Value: Dual UARTs support simultaneous Modbus RTU and debug console; watchdog timers and MPU ensure fail-safe operation during firmware updates. |
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 performance and memory headroom; lacks factory-trimmed ADC reference and integrated USB PHY | Select when higher clock speed and larger code footprint are required; accept added BOM complexity for USB |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F @ 48 MHz, 256 KB flash, 32 KB SRAM, no CAN, no USB device stack support | Lower power consumption (120 µA/MHz), certified for functional safety (IEC 61508 SIL2), no USB or CAN interfaces | Select for ultra-low-power industrial sensing where USB/CAN are unnecessary and safety certification is mandatory |
Compared with STM32F407VGT6 and RA4M1, the TM4C123FH6PMTR delivers balanced performance, integrated USB 2.0 device capability, and industrial-grade analog subsystems in a compact 48-pin LQFP-making it optimal for cost-sensitive, USB-connected embedded controllers requiring deterministic real-time response.
Availability
TM4C123FH6PMTR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, USB human interface devices, and programmable logic controller I/O modules requiring stable component supply and long-term manufacturability.
Supply support for TM4C123FH6PMTR 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 wireless technologies since 1930.
The TM4C123 series was designed specifically for cost-sensitive industrial and automotive applications requiring robust real-time control, integrated connectivity, and extended temperature operation-positioned between legacy C2000 and higher-end Sitara processors.
FAQ
What is the maximum operating frequency of the TM4C123FH6PMTR?
The TM4C123FH6PMTR operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL with an external 1–25 MHz crystal or oscillator input. This frequency is fully supported across the entire industrial temperature range (-40°C to +105°C), and all peripherals-including USB, ADC, and PWM-are rated for synchronous operation at this speed. The TM4C123FH6PMTR datasheet specifies timing margins validated under worst-case voltage and temperature conditions.
Does the TM4C123FH6PMTR include an integrated USB physical layer?
Yes, the TM4C123FH6PMTR integrates a full-speed USB 2.0 physical layer (PHY) compliant with USB specification revision 2.0. It supports USB device mode only (not host), with built-in 1.5 kΩ pull-up resistor on USB0DP for enumeration. No external USB transceiver is required, reducing BOM count and PCB layout complexity for HID, CDC, and MSC class implementations.
How much on-chip memory does the TM4C123FH6PMTR provide?
The TM4C123FH6PMTR includes 256 KB of flash memory with error-correcting code (ECC), 32 KB of SRAM, and 2 KB of EEPROM. Flash supports in-application programming (IAP) and sector protection; SRAM is split into contiguous blocks accessible by CPU and μDMA; EEPROM provides byte-erasable, 100K-cycle endurance storage for calibration data and configuration parameters.
Is the TM4C123FH6PMTR qualified for industrial temperature operation?
Yes, the TM4C123FH6PMTR is specified for continuous operation from -40°C to +105°C ambient temperature. This qualification is confirmed in the "Packaging and Temperature" section (Section 1.3.8) of the official Texas Instruments datasheet DS-TM4C123FH6PM-15842.2741. All electrical parameters-including ADC accuracy, USB timing, and flash write endurance-are guaranteed across this full range.
What development tools are officially supported for the TM4C123FH6PMTR?
Texas Instruments officially supports the TM4C123FH6PMTR with the TivaWare™ software suite, Code Composer Studio™ IDE, and the TM4C123G LaunchPad™ evaluation board (EK-TM4C123GXL). These tools provide drivers, example projects, and debugging infrastructure compatible with JTAG and SWD interfaces. TI also offers the ICDI-based debug probe integrated into LaunchPad for seamless firmware download and real-time tracing.
TM4C123FH6PMTR 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:
- 43
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123FH6PMTR FAQ
1.How can I place an order for TM4C123FH6PMTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123FH6PMTR 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 TM4C123FH6PMTR reliable?
The price and inventory of TM4C123FH6PMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123FH6PMTR is usually 5 days.
3.What payment methods are accepted for TM4C123FH6PMTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123FH6PMTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123FH6PMTR?
TM4C123FH6PMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123FH6PMTR 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 TM4C123FH6PMTR?
For technical support, including TM4C123FH6PMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123FH6PMTR requirements.
6.How does Aetrix verify that TM4C123FH6PMTR is sourced from the original manufacturer or authorized distributors?
All TM4C123FH6PMTR 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 TM4C123FH6PMTR meets industry standards.
7.What is the process for return or replacement of TM4C123FH6PMTR?
All TM4C123FH6PMTR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123FH6PMTR, 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 TM4C123FH6PMTR part is unused and in its original packaging.
Return procedure for TM4C123FH6PMTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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