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Texas Instruments TM4C123AH6PMI7
- Part No.:
- TM4C123AH6PMI7
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C123AH6PMI7.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,413
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Product details
Overview
TM4C123AH6PMI7 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated peripherals including USB 2.0, CAN, 8×PWM, 12-bit ADC (up to 1MSPS), and multiple UART/SSI/I²C interfaces. It operates at 80 MHz and supports industrial temperature range (–40°C to +85°C) in a 64-pin LQFP package, used in motor control, industrial automation, and embedded HMI systems.
For engineers reviewing the TM4C123AH6PMI7 datasheet, TM4C123AH6PMI7 pinout, TM4C123AH6PMI7 application, or TM4C123AH6PMI7 equivalent, key selection criteria include its FPU-enabled deterministic real-time performance, on-chip USB PHY, dual CAN 2.0B controllers, hardware CRC engine, and support for TI's TivaWare™ software stack and Code Composer Studio™ IDE.
Technical Context
The TM4C123AH6PMI7 integrates a 32-bit ARM Cortex-M4F core with single-precision floating-point unit and DSP extensions, enabling efficient signal processing and control loop execution. Its memory subsystem includes 256 KB of on-chip flash with ECC protection, 32 KB SRAM, and 2 KB EEPROM, all accessible via tightly coupled buses with zero-wait-state operation at 80 MHz.
Peripherals are managed through a hierarchical clock gating system and configurable GPIOs with programmable slew rate and drive strength. The microcontroller implements a 12-channel μDMA controller, nested vectored interrupt controller (NVIC) with 8-level priority encoding, and hardware debug support via SWD/JTAG with trace port interface unit (TPIU) for real-time instruction tracing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU and DSP instructions - enables real-time math-intensive tasks without software emulation. |
| Flash Memory | 256 KB with ECC and 1K erase sectors - supports robust firmware updates and data logging with error detection. |
| SRAM | 32 KB with parity protection - provides reliable runtime data storage for interrupt service routines and control buffers. |
| ADC | 12-bit, up to 1 MSPS with 12-channel analog input and hardware averaging - suitable for precision sensor acquisition in closed-loop systems. |
| Communication | USB 2.0 Device/Host/OTG (with PHY), 2×CAN 2.0B, 8×UART, 4×SSI, 2×I²C - enables mixed wired connectivity in industrial gateways. |
| Timers & PWM | 6×32-bit GPTM (12×16-bit), 2×Watchdog, 8×PWM outputs with dead-band generation - supports multi-axis motor control and power conversion timing. |
| Operating Temp | –40°C to +85°C - qualified for deployment in uncontrolled industrial enclosures and outdoor edge nodes. |
| Package | 64-pin LQFP (10×10 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and thermal management in compact designs. |
Pinout & Package
TM4C123AH6PMI7 is housed in a 64-pin LQFP package (package code PM) with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series pin mapping, supporting multiplexed peripheral functions per GPIO bank.
| 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 and sequencing per datasheet Section 5.2.4. |
| GND, GNDA | Ground returns | Digital and analog ground planes must be partitioned and joined at single point near regulator to minimize noise coupling into ADC. |
| USB0VBUS, USB0ID | USB OTG interface pins | Enable host/device role detection and VBUS sensing - essential for self-powered USB peripheral or OTG applications. |
| CAN0RX, CAN0TX | CAN 2.0B transceiver interface | Direct connection to external CAN transceiver (e.g., SN65HVD230) - supports 1 Mbps bus rates in automotive and factory networks. |
| PD0–PD7, PE0–PE5, etc. | Multiplexed GPIOs | Each pin supports up to 8 peripheral functions (e.g., UART0TX, SSI0CLK, I2C1SCL) - configured via GPIODEN, GPIOAFSEL, and GPIOPCTL registers. |
| SWCLK, SWDIO | ARM Serial Wire Debug | Two-pin debug interface replacing JTAG - reduces PCB footprint while retaining full SWD functionality for development and field programming. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision arithmetic - cuts PID loop computation time by >10× vs. integer-only cores. |
| Integrated USB PHY | On-die USB 2.0 transceiver with internal termination - eliminates need for external PHY IC and reduces BOM cost and layout complexity. |
| Dual CAN Controllers | Two independent CAN 2.0B modules with message RAM and filtering - enables redundant bus communication or gateway bridging between CAN networks. |
| Hardware CRC Engine | Dedicated CRC-16/CRC-32 accelerator - offloads checksum calculation from CPU during firmware update or data packet validation. |
| ROM Bootloader | Factory-programmed ROM with UART/USB/I²C boot modes - allows field firmware recovery without debugger or external programmer. |
| GPIO Configurability | Per-pin slew rate, drive strength, and pull-up/down control - supports interoperability with 1.8 V, 3.3 V, and 5 V logic families across I/O banks. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and conveyor drives using space-vector PWM and current feedback. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithms, managing gate drivers via PWM, and sampling current/voltage via ADC with hardware trigger synchronization. Use Value: Deterministic 80 MHz execution with FPU and dedicated PWM timers enables sub-1 µs control loop jitter and precise torque regulation. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ with wireless backhaul. IC Role / Device Role / Timing Role: System-on-chip host managing sensor interfaces (I²C/ADC), low-power scheduling, USB/UART configuration, and secure firmware updates. Use Value: Integrated USB device mode and ROM bootloader allow direct PC-based calibration and field firmware patching without external tools. |
| Automotive Diagnostic Tool | Human-Machine Interface (HMI) |
Use Scenario: Handheld OBD-II scanner interfacing with vehicle ECUs via CAN and displaying diagnostics on LCD. IC Role / Device Role / Timing Role: CAN protocol handler, USB CDC device for PC communication, and graphics-ready controller driving segment or character LCD. Use Value: Dual CAN controllers support simultaneous access to powertrain and body networks; USB device mode enables plug-and-play PC integration. | Use Scenario: Touch-enabled panel in industrial equipment with button, slider, and status LED controls. IC Role / Device Role / Timing Role: Peripheral hub coordinating capacitive touch sensing (via ADC), LED PWM dimming, buzzer tone generation, and serial display interface. Use Value: 12-bit ADC with hardware averaging and 8×PWM channels enable high-resolution analog touch detection and smooth LED brightness control. |
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 | Larger code footprint support; lacks native USB device capability and CAN FD readiness | Preferred when higher clock speed and larger flash are required, and USB is implemented via external PHY. |
| MSP432P401RIPZT | ARM Cortex-M4F @ 48 MHz, 2 MB flash, 256 KB SRAM, integrated USB but no CAN | Lower performance ceiling; optimized for ultra-low-power operation over real-time determinism | Chosen for battery-powered applications where deep-sleep current (<1 µA) outweighs CAN or high-speed PWM needs. |
Compared with STM32F407VGT6 and MSP432P401RIPZT, the TM4C123AH6PMI7 uniquely balances industrial-grade real-time responsiveness, integrated USB+CAN connectivity, and production-ready TivaWare software support - making it optimal for cost-sensitive, mixed-interface embedded controllers.
Availability
TM4C123AH6PMI7 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and automotive diagnostic tools requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TM4C123AH6PMI7 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 specializing in analog, embedded processing, and digital signal processing technologies, with decades of experience in industrial, automotive, and communications markets.
The TM4C123AH6PMI7 belongs to TI's Tiva™ C Series microcontrollers, designed specifically for cost-effective, high-integration embedded applications demanding real-time control, mixed-signal capability, and broad peripheral connectivity without external glue logic.
FAQ
What is the maximum operating frequency of the TM4C123AH6PMI7?
The TM4C123AH6PMI7 operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL that accepts input from the main oscillator (4–25 MHz), precision internal oscillator (16 MHz), or external clock source. This frequency is fully supported across all voltage and temperature ranges specified in the datasheet, and all peripherals-including USB, CAN, and ADC-are rated for concurrent operation at this speed.
Does the TM4C123AH6PMI7 include an integrated USB physical layer?
Yes, the TM4C123AH6PMI7 includes a full-speed USB 2.0 Device/Host/OTG controller with an integrated PHY, eliminating the need for an external USB transceiver. This allows direct connection to USB connectors with only passive ESD protection and proper VBUS sensing circuitry, simplifying board design and reducing BOM count for USB-enabled applications.
How many CAN interfaces does the TM4C123AH6PMI7 support?
The TM4C123AH6PMI7 integrates two independent CAN 2.0B controllers (CAN0 and CAN1), each with dedicated message RAM, acceptance filtering, and transmit/receive FIFOs. Both controllers support bit rates up to 1 Mbps and operate concurrently, enabling dual-bus architectures such as gateway bridging or redundant communication paths in industrial networks.
What debug interfaces are supported by the TM4C123AH6PMI7?
The TM4C123AH6PMI7 supports both JTAG and ARM Serial Wire Debug (SWD) interfaces. SWD uses only two pins (SWCLK and SWDIO) and is the recommended interface for most development and production programming due to its smaller footprint and full debug capability-including breakpoints, watchpoints, memory inspection, and real-time trace via TPIU-matching JTAG functionality.
Is the TM4C123AH6PMI7 pin-compatible with other Tiva C Series microcontrollers?
The TM4C123AH6PMI7 shares the same 64-pin LQFP package and core pinout with other TM4C123x devices (e.g., TM4C123GH6PM), but not with TM4C129x or TM4C1230H6PM variants. Pin compatibility is limited to members of the TM4C123x family with identical package codes (PM), allowing migration within that group with minimal PCB changes-subject to verifying peripheral function mapping and voltage requirements.
TM4C123AH6PMI7 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
- 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:
TM4C123AH6PMI7 FAQ
1.How can I place an order for TM4C123AH6PMI7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123AH6PMI7 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 TM4C123AH6PMI7 reliable?
The price and inventory of TM4C123AH6PMI7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123AH6PMI7 is usually 5 days.
3.What payment methods are accepted for TM4C123AH6PMI7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123AH6PMI7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123AH6PMI7?
TM4C123AH6PMI7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123AH6PMI7 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 TM4C123AH6PMI7?
For technical support, including TM4C123AH6PMI7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123AH6PMI7 requirements.
6.How does Aetrix verify that TM4C123AH6PMI7 is sourced from the original manufacturer or authorized distributors?
All TM4C123AH6PMI7 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 TM4C123AH6PMI7 meets industry standards.
7.What is the process for return or replacement of TM4C123AH6PMI7?
All TM4C123AH6PMI7 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123AH6PMI7, 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 TM4C123AH6PMI7 part is unused and in its original packaging.
Return procedure for TM4C123AH6PMI7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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