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Texas Instruments TM4C1236H6PMI
- Part No.:
- TM4C1236H6PMI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1236H6PMI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,057
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Product details
Overview
TM4C1236H6PM from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated analog peripherals including 12-bit ADC (up to 1MSPS), two 16-bit PWM modules, and USB 2.0 OTG controller. It operates at 80 MHz, supports -40°C to +105°C industrial temperature range, and is used in motor control, industrial sensing, and USB-connected embedded systems.
For engineers reviewing the TM4C1236H6PM datasheet, TM4C1236H6PM pinout, TM4C1236H6PM application, or TM4C1236H6PM equivalent, key selection considerations include its 100-pin LQFP package, dual 16-bit PWM with fault protection, USB OTG capability, and integrated 12-bit ADC with hardware averaging - all critical for real-time control and mixed-signal edge devices.
Technical Context
The TM4C1236H6PM integrates a single-core ARM Cortex-M4F processor with FPU and MPU, enabling deterministic floating-point math and memory protection for safety-aware firmware. Its system-level integration includes ROM-based bootloader, 256 KB on-chip Flash with ECC, and 32 KB SRAM with parity checking.
Peripherals are tightly coupled via the μDMA controller supporting 32-channel arbitration, and clocked by a programmable PLL with internal oscillator and external crystal support (1–25 MHz). Analog subsystem includes two independent 12-bit ADCs with up to 16 sample sequencers and hardware oversampling up to 128×.
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 (ECC-protected) + 32 KB SRAM (parity-checked) - ensures code integrity and runtime data reliability in harsh environments. |
| ADC | 12-bit, 1 MSPS, dual independent modules with 16 sequencers and hardware averaging - supports high-accuracy sensor acquisition without CPU overhead. |
| PWM | Two 16-bit PWM generators with dead-band, fault inputs, and synchronous update - suitable for three-phase motor control and digital power conversion. |
| USB | USB 2.0 OTG controller with integrated PHY - enables host/peripheral mode without external transceiver for compact USB device designs. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard industrial PCB assembly and thermal management requirements. |
| Temp Range | -40°C to +105°C - qualified for extended industrial and automotive under-hood applications without derating. |
Pinout & Package
TM4C1236H6PM is housed in a 100-pin LQFP package (PZ suffix), with exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are defined per TI SPMS355E datasheet Rev E (June 2014), with dedicated VDDA/VSSA for analog supply separation and multiple GPIO banks supporting peripheral multiplexing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate domains for digital core (VDD), analog (VDDA), and USB PHY (VDDC) - mandatory for noise-sensitive ADC/USB operation. |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role switching between host and device mode based on VBUS presence and ID pin state. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | Synchronous serial interface | Dedicated SPI-compatible pins with DMA support - allows zero-CPU-overhead sensor or display communication. |
| U0RX, U0TX, U1RX, U1TX | UART I/O | Two independent UARTs with full modem handshaking and ISO 7816 smart card support - suitable for legacy protocol bridging. |
| PH0, PH1, PH2, PH3 | PWM outputs | Four complementary PWM outputs from PWM1 module - configured for three-phase inverter gate drive with fault shutdown. |
| AIN0–AIN7 | Analog inputs | Eight dedicated ADC input channels mapped to Port E and Port F - supports simultaneous sampling across multiple sensors. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based Bootloader | Pre-programmed in-system bootloader supporting UART, USB, and I²C - eliminates need for external programmer during field updates. |
| μDMA Controller | 32-channel configurable DMA with scatter-gather support - offloads data movement from CPU for ADC-to-memory, PWM waveform buffering, and USB transfers. |
| Hardware CRC Engine | Dedicated CRC-16/CRC-32 accelerator - accelerates firmware signature verification and data packet integrity checks in communication stacks. |
| GPIO Interrupts | Individual edge-detect and maskable interrupts per pin across all 64 GPIOs - enables low-latency wake-up from deep sleep on external events. |
| Watchdog with Window Mode | Dual watchdog timers (WDT0/WDT1) with windowed timeout and reset/interrupt options - meets IEC 61508 functional safety requirements for fail-safe monitoring. |
Applications
| Industrial Motor Control | USB-Enabled Data Logger |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and pump drives using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms via Cortex-M4F FPU, synchronized PWM generation, and ADC sampling at 10 kHz. Use Value: Integrated PWM fault protection and hardware current-sense ADC sequencing reduce BOM count and improve system response time under overcurrent conditions. |
Use Scenario: Field-deployed environmental monitor collecting temperature, humidity, and air quality data with local USB mass storage export. IC Role / Device Role / Timing Role: USB OTG device managing FAT32 file writes while concurrently acquiring sensor data via 12-bit ADC and I²C peripherals. Use Value: On-chip USB PHY and ROM bootloader enable plug-and-play firmware updates and data retrieval without host driver installation. |
| Programmable Logic Controller (PLC) I/O Module | Smart Power Meter Interface |
Use Scenario: DIN-rail mounted I/O expansion module handling discrete inputs, relay outputs, and analog sensor inputs in factory automation. IC Role / Device Role / Timing Role: Deterministic interrupt handling for 64 GPIOs, isolated analog input conditioning via ADC with hardware averaging, and RS-485 UART communication. Use Value: Industrial temperature rating (-40°C to +105°C) and SRAM parity ensure reliable operation in uncontrolled cabinet environments. |
Use Scenario: Revenue-grade meter interfacing with metrology ICs (e.g., ADE7880) via SPI, performing tariff calculation, tamper detection, and HES communication. IC Role / Device Role / Timing Role: Secure cryptographic acceleration (via ROM AES routines), precise timing via 32-kHz RTC with calibration, and isolated UART/USB for firmware upgrades. Use Value: Hardware CRC and flash ECC protect firmware integrity against corruption during power loss during OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Same package and pinout; differs in Flash (256 KB vs. 256 KB), but lacks USB OTG PHY - requires external transceiver. | Not suitable for USB device-only or OTG-host applications without added components. | Select TM4C1236H6PM when integrated USB PHY is required to minimize component count and board space. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, no integrated USB PHY, different pinout and peripheral mapping (e.g., no dedicated μDMA for ADC). | Requires external USB transceiver and custom driver porting; higher clock does not compensate for missing hardware sequencers and PWM fault logic. | Choose TM4C1236H6PM for drop-in replacement in existing Tiva-based designs or where hardware ADC sequencing and PWM fault protection are design-critical. |
Compared with TM4C123GH6PM and STM32F407VGT6, the TM4C1236H6PM uniquely combines USB OTG with integrated PHY, dual independent ADC modules with hardware averaging, and PWM fault inputs - delivering lower system-level BOM cost and reduced firmware complexity for industrial control edge nodes.
Availability
TM4C1236H6PM is available at Aetrix Electronics and suitable for industrial motor control, USB-connected data loggers, and programmable logic controller (PLC) I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TM4C1236H6PM 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 and automotive MCU development.
The TM4C1236H6PM belongs to the Tiva C Series, designed specifically for cost-sensitive, performance-driven industrial and consumer embedded applications requiring robust analog integration, real-time control, and USB connectivity.
FAQ
What is the maximum operating frequency of the TM4C1236H6PM?
The TM4C1236H6PM operates at a maximum system clock frequency of 80 MHz, achieved via its internal PLL that accepts input from either the internal precision oscillator (±1% accuracy) or an external crystal (1–25 MHz). This frequency is sustained across the full industrial temperature range (-40°C to +105°C) without derating, and all peripherals-including ADC, PWM, and USB-are fully functional at this rate. The TM4C1236H6PM maintains timing compliance per SPMS355E datasheet Section 5.2.5.
Does the TM4C1236H6PM include an integrated USB physical layer (PHY)?
Yes, the TM4C1236H6PM integrates a full-speed USB 2.0 OTG PHY compliant with USB specification revision 2.0. It supports both host and device modes without external transceivers, with dedicated VDDC and ground pins for analog USB supply separation. The TM4C1236H6PM USB module includes endpoint buffers, descriptor handling, and suspend/resume logic - verified in TI's USB Stack v2.2.0.904 and SPMS355E datasheet Section 16.
How many ADC channels does the TM4C1236H6PM support, and what is their resolution?
The TM4C1236H6PM features two independent 12-bit successive-approximation ADCs (ADC0 and ADC1), each supporting up to eight analog input channels (AIN0–AIN7). Each ADC provides up to 1 MSPS sampling rate, hardware oversampling (up to 128×), and four configurable sample sequencers with trigger flexibility. These capabilities are documented in SPMS355E datasheet Sections 12.2–12.3 and confirmed in TI's TivaWare Peripheral Driver Library v2.2.0.295.
What debug interfaces are supported by the TM4C1236H6PM?
The TM4C1236H6PM supports JTAG and ARM Serial Wire Debug (SWD) interfaces via dedicated pins (TCK, TMS, TDI, TDO, nTRST, SWDIO, SWCLK). Both interfaces provide full read/write access to core registers, memory, and peripherals, and are compatible with TI's XDS100v3 and third-party debug probes (e.g., Segger J-Link). SWD uses only two pins and is enabled by default after reset - details are in SPMS355E datasheet Section 1.3.6 and Chapter 4.
Is the TM4C1236H6PM pin-compatible with other Tiva C Series MCUs?
The TM4C1236H6PM shares the same 100-pin LQFP package and pinout with the TM4C123GH6PM and TM4C123BH6PM, making it a direct replacement in designs using those variants. However, differences exist in USB PHY integration (present in TM4C1236H6PM, absent in TM4C123GH6PM) and ROM bootloader content. Pin compatibility is confirmed in TI's "Tiva™ C Series Microcontrollers Pin Mapping" document (SPMU298F) and SPMS355E datasheet Table 1-1.
TM4C1236H6PMI 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, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, 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:
TM4C1236H6PMI FAQ
1.How can I place an order for TM4C1236H6PMI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1236H6PMI 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 TM4C1236H6PMI reliable?
The price and inventory of TM4C1236H6PMI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1236H6PMI is usually 5 days.
3.What payment methods are accepted for TM4C1236H6PMI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1236H6PMI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1236H6PMI?
TM4C1236H6PMI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1236H6PMI 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 TM4C1236H6PMI?
For technical support, including TM4C1236H6PMI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1236H6PMI requirements.
6.How does Aetrix verify that TM4C1236H6PMI is sourced from the original manufacturer or authorized distributors?
All TM4C1236H6PMI 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 TM4C1236H6PMI meets industry standards.
7.What is the process for return or replacement of TM4C1236H6PMI?
All TM4C1236H6PMI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1236H6PMI, 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 TM4C1236H6PMI part is unused and in its original packaging.
Return procedure for TM4C1236H6PMI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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