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Texas Instruments TM4C1231D5PMT7R
- Part No.:
- TM4C1231D5PMT7R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1231D5PMT7R.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,087
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Product details
Overview
TM4C1231D5PMT7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB Flash, 32 KB SRAM, and integrated USB, CAN, PWM, ADC (12-bit, 1MSPS), and multiple serial interfaces. It serves as a main system controller in industrial motor control, smart sensor nodes, and USB-connected embedded devices.
For engineers reviewing the TM4C1231D5PMT7R datasheet, TM4C1231D5PMT7R pinout, TM4C1231D5PMT7R application, or TM4C1231D5PMT7R equivalent, key selection criteria include its 80 MHz Cortex-M4F core with FPU, 12-bit 1MSPS ADC, USB 2.0 OTG support, CAN 2.0B interface, and 64-pin LQFP package with 49 GPIOs.
Technical Context
The TM4C1231D5PMT7R implements a full-featured ARM Cortex-M4F core with hardware floating-point unit and memory protection unit (MPU), enabling deterministic real-time control and safe multitasking. It integrates a programmable 16/32-bit general-purpose timer array, hibernation module with RTC and battery-backed memory, and μDMA controller supporting 32-channel peripheral-to-memory transfers.
On-chip analog includes dual 12-bit ADCs with up to 12 input channels, sample averaging, and digital comparators; digital peripherals include four UARTs (one with ISO 7816 and SIR), two I²C modules, three SPIs, one USB 2.0 OTG controller, and two CAN 2.0B controllers - all accessible via configurable GPIOs with slew-rate and drive-strength control.
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 secure task isolation. |
| Memory | 256 KB Flash + 32 KB SRAM + 2 KB EEPROM - supports firmware updates, data logging, and parameter storage without external memory. |
| ADC | 12-bit, 1 MSPS, dual-sample sequencers, 12-channel input - suitable for high-speed sensor acquisition in closed-loop control. |
| USB | USB 2.0 OTG controller with PHY - allows device/host/OTG operation for direct PC connectivity or peripheral emulation. |
| CAN Interface | Two CAN 2.0B controllers with dedicated message RAM - supports robust industrial fieldbus communication with time-triggered scheduling. |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and offers 49 GPIOs with flexible peripheral mapping. |
| Operating Temp | –40°C to +105°C - qualified for extended industrial environments including motor drives and factory automation. |
Pinout & Package
TM4C1231D5PMT7R is housed in a 64-pin LQFP package (package code: PMP) with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series pinout for 64-pin variants, supporting multiplexed peripheral functions across GPIO banks A–F.
| 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) supplies - require separate decoupling for noise-sensitive analog and digital domains. |
| GND, GNDA | Ground returns | Digital and analog ground planes must be partitioned and joined at single point near regulator to minimize coupling. |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role switching between host/device based on VBUS presence and ID pin state. |
| CAN0RX, CAN0TX | CAN 2.0B differential interface | Direct connection to external CAN transceiver (e.g., SN65HVD230); requires 120 Ω termination at network ends. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO with alternate functions | Support UART, I²C, SPI, PWM, ADC, and timer capture - configured via GPIOAFSEL and GPIODEN registers. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Ultra-low-power sleep mode (≤1.1 µA) with RTC, battery-backed SRAM, and wake-on-external-interrupt - extends battery life in remote sensors. |
| μDMA Controller | 32-channel controller with scatter-gather support - offloads CPU during high-bandwidth transfers (e.g., ADC → memory, UART → buffer). |
| Programmable Clock System | Multiple PLL and clock dividers with precision ±0.5% internal oscillator - eliminates need for external crystal in cost-sensitive designs. |
| Peripheral Integration | All serial interfaces (UART/I²C/SPI/USB/CAN) share common clock domain and interrupt vectoring - simplifies driver development and reduces ISR latency. |
| GPIO Flexibility | Per-pin digital/analog enable, slew rate control, and 2/4/8 mA drive strength - adapts I/O behavior to signal integrity and EMI requirements. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors using PWM-driven gate drivers and real-time current/voltage feedback. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing ADC sampling, generating synchronized PWM outputs, and communicating status via CAN. Use Value: 80 MHz Cortex-M4F with FPU delivers <10 µs loop execution; dual ADCs acquire phase currents simultaneously at 1 MSPS for precise torque regulation. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure data with local processing and wireless upload. IC Role / Device Role / Timing Role: Sensor hub and edge processor - reads analog/digital sensors, runs calibration algorithms, stores logs in EEPROM, and initiates BLE/LoRa transmission via UART. Use Value: Hibernation mode draws ≤1.1 µA while maintaining RTC and 2 KB SRAM; internal precision oscillator avoids external crystal cost and board space. |
| USB Human Interface Device | Factory Automation Gateway |
Use Scenario: Programmable HID device (e.g., custom test jig, industrial keyboard) requiring plug-and-play USB connectivity to host PCs. IC Role / Device Role / Timing Role: USB 2.0 OTG device controller with HID class stack - handles enumeration, report descriptor parsing, and bidirectional data exchange. Use Value: Integrated USB PHY and controller eliminate external transceiver; ROM-based USB stack reduces Flash footprint and boot time. | Use Scenario: Protocol translator bridging Modbus RTU (RS-485) to EtherNet/IP or MQTT over Ethernet/Wi-Fi. IC Role / Device Role / Timing Role: Dual-interface gateway controller - manages UART-based Modbus polling and TCP/IP stack via external MAC/PHY or Wi-Fi module. Use Value: Four UARTs (including ISO 7816-capable) and two CAN controllers allow concurrent legacy fieldbus and modern IP network interfacing. |
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 vs. 256 KB), same core, but adds 16 KB additional SRAM and integrated Ethernet MAC - no PHY included. | Requires external PHY for Ethernet; not drop-in due to different pinout and larger package (144-pin LQFP). | Select when Ethernet connectivity is required and PCB layout accommodates larger footprint and external PHY. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, 192 KB SRAM, no integrated USB PHY - requires external USB transceiver. | Lacks native USB OTG PHY and CAN FD support; uses different peripheral register map and HAL ecosystem. | Choose for higher CPU throughput and memory headroom where USB PHY integration is not mandatory and toolchain flexibility is prioritized. |
Compared with TM4C123GH6PM and STM32F407VGT6, the TM4C1231D5PMT7R provides optimal balance of USB OTG integration, CAN 2.0B support, low-power hibernation, and compact 64-pin LQFP packaging - ideal for space-constrained, USB- and CAN-enabled industrial edge nodes.
Availability
TM4C1231D5PMT7R is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB human interface devices, and factory automation gateways requiring stable component supply and long-term manufacturability.
Supply support for TM4C1231D5PMT7R 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, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TM4C123x product line was designed specifically for cost-sensitive, performance-demanding industrial and IoT edge applications - emphasizing integrated connectivity (USB/CAN), low-power operation, and real-time determinism without external components.
FAQ
What is the maximum operating frequency of the TM4C1231D5PMT7R?
The TM4C1231D5PMT7R operates at a maximum system clock frequency of 80 MHz, derived from its internal precision oscillator or external crystal source through a configurable PLL. This frequency applies to the ARM Cortex-M4F core, bus matrix, and all on-chip peripherals - enabling deterministic real-time response for motor control and sensor fusion tasks. The TM4C1231D5PMT7R maintains timing compliance across its full industrial temperature range (–40°C to +105°C).
Does the TM4C1231D5PMT7R include an integrated USB physical layer (PHY)?
Yes, the TM4C1231D5PMT7R integrates a full-speed USB 2.0 OTG physical layer (PHY) compliant with USB specification revision 2.0. This eliminates the need for an external transceiver when implementing USB device, host, or OTG functionality. The TM4C1231D5PMT7R supports both 3.3 V and 5 V VBUS detection and includes dedicated USB0VBUS and USB0ID pins for automatic role negotiation - a key differentiator versus many competing MCUs requiring external PHY components.
How many analog-to-digital converter (ADC) channels does the TM4C1231D5PMT7R support?
The TM4C1231D5PMT7R features two independent 12-bit ADC modules, each supporting up to six sample sequencers and a total of 12 external input channels. These ADCs operate at up to 1 MSPS aggregate sampling rate with hardware sample averaging (2–64 samples) and built-in digital comparators. The TM4C1231D5PMT7R also includes an internal temperature sensor and selectable reference voltage sources (VDDA or internal 1.65 V), making it suitable for precision analog monitoring in industrial environments.
Is the TM4C1231D5PMT7R pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1231D5PMT7R is not pin-compatible with other Tiva C Series microcontrollers outside its specific 64-pin LQFP variant group (e.g., TM4C1231E6PMT). While it shares the same package footprint and pin count with certain members like TM4C1230D5PZT, differences in peripheral mapping, power pin placement, and debug interface routing prevent guaranteed drop-in replacement. Always verify pin function alignment using the TM4C1231D5PMT7R-specific datasheet pinout table before board reuse.
What debug interface does the TM4C1231D5PMT7R support?
The TM4C1231D5PMT7R supports both JTAG and ARM Serial Wire Debug (SWD) interfaces via dedicated pins (TCK, TMS, TDI, TDO, nTRST, SWCLK, SWDIO). SWD is the recommended interface for most development workflows due to its reduced pin count (2-wire) and full debug capability including flash programming, real-time variable inspection, and breakpoint control. The TM4C1231D5PMT7R also supports boundary scan and IEEE 1149.1-compliant JTAG for production testing - both interfaces are active simultaneously and selectable via configuration.
TM4C1231D5PMT7R 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, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 24K 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:
TM4C1231D5PMT7R FAQ
1.How can I place an order for TM4C1231D5PMT7R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231D5PMT7R 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 TM4C1231D5PMT7R reliable?
The price and inventory of TM4C1231D5PMT7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231D5PMT7R is usually 5 days.
3.What payment methods are accepted for TM4C1231D5PMT7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231D5PMT7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231D5PMT7R?
TM4C1231D5PMT7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231D5PMT7R 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 TM4C1231D5PMT7R?
For technical support, including TM4C1231D5PMT7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231D5PMT7R requirements.
6.How does Aetrix verify that TM4C1231D5PMT7R is sourced from the original manufacturer or authorized distributors?
All TM4C1231D5PMT7R 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 TM4C1231D5PMT7R meets industry standards.
7.What is the process for return or replacement of TM4C1231D5PMT7R?
All TM4C1231D5PMT7R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231D5PMT7R, 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 TM4C1231D5PMT7R part is unused and in its original packaging.
Return procedure for TM4C1231D5PMT7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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