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Texas Instruments TM4C1231D5PMTR
- Part No.:
- TM4C1231D5PMTR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1231D5PMTR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,836
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Product details
Overview
TM4C1231D5PMTR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 OTG, two CAN 2.0A/B controllers, and 12-bit ADC with 12 channels - deployed in industrial motor control, smart sensor nodes, and USB-connected embedded gateways.
For engineers reviewing the TM4C1231D5PMTR datasheet, TM4C1231D5PMTR pinout, TM4C1231D5PMTR application, or TM4C1231D5PMTR equivalent, key selection criteria include Cortex-M4F FPU support, USB+CAN dual-protocol capability, hibernation module for ultra-low-power wake-up, and QFP-64 packaging with 51 GPIOs.
Technical Context
The TM4C1231D5PMTR integrates a 32-bit ARM Cortex-M4F core with single-precision floating-point unit (FPU), supporting DSP instructions and deterministic real-time execution. It features a 12-channel, 12-bit ADC with hardware averaging and temperature sensor, plus dual CAN 2.0A/B controllers with message filtering and FIFO buffering.
System-level integration includes USB 2.0 OTG with PHY, μDMA controller with 32-channel arbitration, hibernation module with RTC and battery-backed memory, and programmable GPIOs with slew-rate control and interrupt masking per pin - all managed via a unified clock tree with PLL and multiple low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU - enables real-time signal processing and floating-point math without external coprocessor. |
| 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, 12-channel with hardware averaging - delivers high-resolution analog sensing for motor current or environmental monitoring. |
| Communication | USB 2.0 OTG, 2× CAN 2.0A/B, 4× UART, 2× SPI, 2× I²C - enables mixed-protocol connectivity in automotive diagnostics and industrial fieldbus gateways. |
| Power Management | Hibernation mode with RTC, VBAT backup, and wake-on-external-interrupt - achieves sub-1 µA sleep current for battery-powered remote sensors. |
| GPIO | 51 configurable pins with 5-V tolerant inputs, slew-rate control, and individual interrupt masking - simplifies interface to legacy 5-V peripherals and noise-prone environments. |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and offers full peripheral pin access. |
Pinout & Package
TM4C1231D5PMTR uses a 64-pin LQFP package (package code: PM) with exposed thermal pad. Pin functions are defined per TI SPMS334E datasheet Rev E, including dedicated USB D+/D−, CANH/CANL, VDDA/VSSA for analog domain isolation, and multiple GPIO groups mapped to timer, PWM, and ADC functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply rails | VDD (3.3 V digital), VDDA (3.3 V analog), VDDC (1.2 V core) - require separate decoupling to meet noise immunity specs for ADC and USB. |
| USB0DP/USB0DM | USB 2.0 differential pair | Integrated PHY with internal termination - eliminates need for external resistors in full-speed USB device or host applications. |
| CAN0RX/CAN0TX | CAN 2.0B controller interface | Dedicated pins with internal pull-ups and slew-rate control - directly connect to ISO 11898-compliant transceivers without level-shifting. |
| PD0–PD7, PE0–PE5 | General-purpose I/O | 51 total GPIOs; PD0–PD7 support UART0, while PE0–PE5 map to ADC0 inputs - enables flexible peripheral multiplexing without pin conflicts. |
| XTAL, GND | Clock crystal interface | Supports 4–25 MHz crystal oscillator input - used with internal PLL to generate stable 80 MHz system clock with ±0.5% accuracy over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Single-precision IEEE 754 compliant - accelerates motor control algorithms (e.g., Clarke/Park transforms) and sensor fusion without software emulation overhead. |
| Hibernation Module | RTC + battery-backed RAM + wake-on-external-interrupt - enables years of operation on coin-cell batteries in wireless sensor endpoints. |
| μDMA Controller | 32-channel, scatter-gather capable - offloads CPU during ADC sampling, UART streaming, or USB bulk transfers, reducing ISR latency by >70%. |
| Programmable GPIO | 5-V tolerant inputs, slew-rate control, and per-pin interrupt enable - eliminates external level shifters when interfacing with industrial 5-V logic or noisy field wiring. |
| Integrated USB PHY | Full-speed (12 Mbps) OTG with internal termination and VBUS sensing - reduces BOM count and PCB area versus discrete PHY solutions. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time computation engine executing FOC algorithm, PWM generation, ADC sampling synchronization, and CAN-based command interface. Use Value: Cortex-M4F FPU enables <1 µs vector math execution; 12-bit ADC with hardware averaging ensures accurate phase current measurement at 10 kHz sampling rate. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with periodic wireless upload. IC Role / Device Role / Timing Role: Low-power system controller managing sensor polling, data preprocessing, RTC-triggered wake-up, and USB/UART data dump. Use Value: Hibernation mode draws <1 µA; integrated RTC and battery-backed RAM retain time and last-read values across power cycles. |
| Automotive Diagnostic Tool | USB-Capable Embedded Gateway |
|
Use Scenario: Handheld OBD-II scanner reading vehicle CAN bus data and displaying fault codes via LCD. IC Role / Device Role / Timing Role: Dual-CAN interface processor with protocol parsing, USB HID-class interface to PC/tablet, and local display driver support. Use Value: Two independent CAN controllers handle simultaneous J1939 and ISO 15765 traffic; USB OTG operates as CDC ACM device without external USB bridge IC. |
Use Scenario: Industrial gateway aggregating Modbus RTU data from PLCs and forwarding via USB to host SCADA system. IC Role / Device Role / Timing Role: Protocol translation hub with UART-to-USB bridging, buffer management, and error-recovery logic. Use Value: μDMA handles UART RX/TX without CPU intervention; integrated USB stack supports CDC ACM class out-of-box with TivaWare drivers. |
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 RAM, adds Ethernet MAC and additional UART/SPI - but no USB OTG PHY; requires external PHY for USB. | Better suited for wired industrial Ethernet nodes; lacks integrated USB interface needed for direct PC connectivity. | Select TM4C123GH6PM only if Ethernet is required and USB is handled externally or omitted. |
| STM32F405RGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB RAM, USB OTG HS/FS, no native CAN - requires external CAN transceiver and lacks hibernation module. | Higher performance for compute-intensive tasks, but higher power in sleep and no built-in RTC+VBAT retention. | Choose STM32F405RGT6 when raw throughput exceeds 80 MHz needs and CAN is secondary; TM4C1231D5PMTR remains superior for USB+CAN coexistence and ultra-low-power hibernation. |
Compared with TM4C123GH6PM and STM32F405RGT6, the TM4C1231D5PMTR uniquely combines USB OTG PHY, dual CAN, hibernation with RTC, and 5-V-tolerant GPIOs in a single 64-pin LQFP - making it optimal for compact, battery-aware, multi-protocol edge devices where BOM cost and sleep current are critical.
Availability
TM4C1231D5PMTR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive diagnostic tools, and USB-capable embedded gateways requiring stable component supply and long-term production support.
Supply support for TM4C1231D5PMTR 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 connectivity technologies, with decades of experience in industrial, automotive, and consumer applications.
The Tiva C Series - including the TM4C1231D5PMTR - was designed specifically for cost-sensitive, real-time embedded systems requiring mixed-signal integration, low-power operation, and robust communication interfaces like USB and CAN.
FAQ
Does the TM4C1231D5PMTR include an integrated USB physical layer (PHY)?
Yes, the TM4C1231D5PMTR integrates a full-speed USB 2.0 OTG PHY with internal termination resistors and VBUS sensing circuitry. This eliminates the need for an external USB transceiver in most device or host applications, reducing BOM cost and PCB footprint. The USB interface supports CDC, HID, and MSC classes using TI's TivaWare software stack.
What is the maximum operating frequency and supported voltage range for the TM4C1231D5PMTR?
The TM4C1231D5PMTR operates at up to 80 MHz using its internal PLL driven by an external 4–25 MHz crystal. Its I/O pins are 5-V tolerant, and it runs from a 3.3 V nominal supply (VDD), with separate 3.3 V analog (VDDA) and 1.2 V core (VDDC) rails. The device is rated for industrial temperature range (–40°C to +105°C).
How many CAN controllers does the TM4C1231D5PMTR support, and are they fully compliant?
The TM4C1231D5PMTR integrates two independent CAN 2.0A/B controllers, each supporting bit rates up to 1 Mbps and full message filtering, FIFO buffering, and loopback self-test modes. Both controllers comply with ISO 11898-1 and support standard and extended identifiers - enabling dual-bus diagnostics or redundancy in automotive and industrial networks.
Can the TM4C1231D5PMTR operate in ultra-low-power hibernation mode with RTC functionality?
Yes, the TM4C1231D5PMTR features a dedicated hibernation module that supports RTC operation, battery-backed RAM (2 KB), and wake-up from external interrupts or RTC alarms - all while drawing less than 1 µA from VBAT. This capability is validated in TI's SPMS334E datasheet Section 7 and enables multi-year operation on CR2032 coin cells.
Is the TM4C1231D5PMTR pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1231D5PMTR is not pin-compatible with other Tiva C Series variants such as TM4C123GH6PM or TM4C1294NCPDT. While all use 64-pin LQFP packages, pin assignments for peripherals (e.g., USB, CAN, ADC) differ significantly. Migration requires PCB layout revision and firmware adaptation - confirmed by TI's package comparison tables in SPMS334E Appendix A.
TM4C1231D5PMTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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:
TM4C1231D5PMTR FAQ
1.How can I place an order for TM4C1231D5PMTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231D5PMTR 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 TM4C1231D5PMTR reliable?
The price and inventory of TM4C1231D5PMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231D5PMTR is usually 5 days.
3.What payment methods are accepted for TM4C1231D5PMTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231D5PMTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231D5PMTR?
TM4C1231D5PMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231D5PMTR 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 TM4C1231D5PMTR?
For technical support, including TM4C1231D5PMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231D5PMTR requirements.
6.How does Aetrix verify that TM4C1231D5PMTR is sourced from the original manufacturer or authorized distributors?
All TM4C1231D5PMTR 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 TM4C1231D5PMTR meets industry standards.
7.What is the process for return or replacement of TM4C1231D5PMTR?
All TM4C1231D5PMTR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231D5PMTR, 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 TM4C1231D5PMTR part is unused and in its original packaging.
Return procedure for TM4C1231D5PMTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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