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Texas Instruments TM4C1232H6PMI
- Part No.:
- TM4C1232H6PMI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1232H6PMI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,118
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Product details
Overview
TM4C1232H6PMI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 controller, and 12-bit ADC with 12 channels-designed for real-time industrial control and sensor hub applications.
For engineers reviewing the TM4C1232H6PMI datasheet, TM4C1232H6PMI pinout, TM4C1232H6PMI application, or TM4C1232H6PMI equivalent, key selection criteria include its USB device/host capability, deterministic floating-point performance, on-chip ROM bootloader, and -40°C to +85°C industrial temperature rating.
Technical Context
The TM4C1232H6PMI integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and vector table relocation. It features a memory protection unit (MPU) and NVIC with 64 interrupt lines, enabling deterministic real-time response in safety-aware firmware.
System-level integration includes a programmable clock tree with PLL, multiple low-power sleep modes (sleep/deep-sleep), and peripheral bus matrix supporting concurrent access to flash, SRAM, and peripherals without arbitration stalls.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables deterministic floating-point math for motor control and sensor fusion. |
| Flash Memory | 256 KB - sufficient for dual-bank firmware updates and secure boot code storage. |
| SRAM | 32 KB - supports real-time data buffering and stack/heap allocation for RTOS tasks. |
| ADC | 12-bit, 1 MSPS, 12-channel - suitable for simultaneous sampling of analog sensors in industrial I/O modules. |
| USB Interface | USB 2.0 Device/Host/Mass Storage Class - allows direct connection to PC hosts or USB peripherals without external PHY. |
| Temperature Range | -40°C to +85°C - qualified for deployment in uncontrolled industrial enclosures and outdoor edge nodes. |
| Package | 64-pin LQFP (10 × 10 mm) - compatible with standard reflow processes and accessible for manual prototyping. |
Pinout & Package
TM4C1232H6PMI is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow TI's Tiva C Series standard layout, supporting multiplexed GPIO, peripheral functions, and dedicated debug signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital core (VDD), analog (VDDA), and USB PHY (VDDC) are independently decoupled to minimize noise coupling into ADC and USB circuits. |
| GND, GNDA, GNDC | Ground returns | Separate digital, analog, and USB ground planes reduce return-path interference and improve signal integrity. |
| USB0DP / USB0DM | USB differential pair | Integrated transceiver supports full-speed (12 Mbps) USB 2.0 without external PHY; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP. |
| PD0 / PD1 | UART0 TX/RX | Default UART0 pins mapped to Port D; support boot-time serial download via ROM bootloader when configured at reset. |
| PF0–PF4 | GPIO / NMI / SW2 | Port F pins serve as user buttons (SW2), non-maskable interrupt source, and configurable GPIO with 2-mA drive strength. |
| TCK / TMS / TDI / TDO | JTAG/SWD debug interface | Supports ARM Serial Wire Debug (SWD) and JTAG; TCK must be driven externally during programming and debugging sessions. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based Bootloader | Enables field firmware updates over UART, USB, or I²C without external programmer-reduces BOM cost and simplifies production programming. |
| Hardware CRC Engine | Accelerates checksum calculation for firmware image validation and data packet integrity checks in communication stacks. |
| μDMA Controller | 32-channel micro-DMA offloads CPU from peripheral-to-memory transfers-critical for high-throughput ADC sampling or USB streaming without CPU intervention. |
| Internal Temperature Sensor | Monitors die temperature with ±3°C accuracy across operating range-used for thermal throttling or system health monitoring without external components. |
| GPIO Pin Configurable Slew Rate | Per-pin slew rate control reduces EMI emissions on high-speed toggling outputs-essential for compliance in industrial EMC environments. |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
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 controller executing FOC algorithms, managing ADC sampling synchronization, and generating precise 3-phase PWM waveforms. Use Value: Deterministic 80 MHz Cortex-M4F execution with hardware FPU delivers sub-1 µs interrupt latency and cycle-accurate timing for commutation events. | Use Scenario: Aggregation and preprocessing of multi-sensor data (temperature, humidity, vibration) before transmission to cloud gateway. IC Role / Device Role / Timing Role: Sensor interface hub with simultaneous ADC sampling, I²C/SPI peripheral management, and USB mass storage emulation for local data dump. Use Value: Integrated USB device mode eliminates need for external USB bridge IC; 256 KB flash stores sensor fusion firmware and calibration tables. |
| Programmable Logic Controller (PLC) I/O Module | USB Human Interface Device (HID) |
Use Scenario: DIN-rail mounted remote I/O module with digital input/output, analog input, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time I/O processor handling cyclic scan logic, isolation interface control, and protocol stack execution. Use Value: 64-pin LQFP provides sufficient GPIO count for discrete I/O expansion; -40°C to +85°C rating ensures reliability in factory-floor environments. | Use Scenario: Embedded HID device such as industrial keypad or diagnostic tool with USB plug-and-play connectivity to host PCs. IC Role / Device Role / Timing Role: USB HID class device controller with customizable report descriptors and low-latency button/key event processing. Use Value: On-chip USB transceiver and ROM bootloader enable zero-external-component USB enumeration and firmware update via standard Windows drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Same core, 256 KB flash, but adds 2 KB EEPROM and 16-channel ADC; lacks USB PHY (requires external transceiver). | Better suited for EEPROM-dependent data logging; not suitable where integrated USB device functionality is required. | Select TM4C123GH6PM only if EEPROM persistence is critical and USB host/device capability is unnecessary. |
| STM32F401RE | ARM Cortex-M4F @ 84 MHz, 512 KB flash, 96 KB SRAM, no native USB device stack or ROM bootloader. | Requires external USB PHY and custom bootloader implementation; higher memory headroom but increased firmware development effort. | Choose STM32F401RE when larger RAM/flash is needed and USB stack porting is acceptable. |
Compared with TM4C123GH6PM and STM32F401RE, the TM4C1232H6PMI uniquely combines integrated USB 2.0 transceiver, ROM bootloader, and industrial temperature grade in a single 64-pin LQFP package-reducing bill-of-materials and accelerating time-to-market for USB-connected embedded systems.
Availability
TM4C1232H6PMI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, PLC I/O modules, and USB HID devices requiring stable component supply and long-term manufacturing continuity.
Supply support for TM4C1232H6PMI 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 TM4C1232H6PMI belongs to TI's Tiva C Series microcontrollers-designed specifically for cost-sensitive, real-time industrial and consumer applications requiring USB connectivity, analog integration, and robust firmware security features.
FAQ
What is the maximum operating frequency of the TM4C1232H6PMI?
The TM4C1232H6PMI operates at a maximum CPU frequency of 80 MHz, achieved using its internal PLL with crystal or external clock input. This frequency is fully supported across the entire industrial temperature range (-40°C to +85°C), and all peripherals-including USB, ADC, and timers-are rated for synchronous operation at this speed without derating.
Does the TM4C1232H6PMI include a built-in USB transceiver?
Yes, the TM4C1232H6PMI integrates a full-speed USB 2.0 transceiver compliant with USB specification revision 2.0. It supports device, host, and OTG modes without requiring external PHY components. The USB0DP and USB0DM pins connect directly to the USB connector with appropriate series resistors and pull-up resistor on DP for device enumeration.
What debug interfaces does the TM4C1232H6PMI support?
The TM4C1232H6PMI supports both JTAG and ARM Serial Wire Debug (SWD) protocols via dedicated TCK, TMS, TDI, TDO, and SWDIO/SWCLK pins. SWD is the preferred interface for modern debug probes due to its two-wire simplicity and full visibility into core registers, memory, and peripherals-enabling real-time tracing and breakpoint debugging of the TM4C1232H6PMI firmware.
Is there a ROM-based bootloader in the TM4C1232H6PMI?
Yes, the TM4C1232H6PMI includes a factory-programmed ROM bootloader that supports firmware updates over UART, USB, I²C, and CAN. This eliminates the need for external programming hardware during production or field upgrades. The bootloader activates automatically when the BOOTCFG register is configured and the device resets with specific GPIO states.
What is the ADC resolution and sampling rate of the TM4C1232H6PMI?
The TM4C1232H6PMI features a 12-bit successive approximation register (SAR) ADC with up to 1 million samples per second (1 MSPS) aggregate throughput across its 12 input channels. It supports hardware averaging, differential input mode, and programmable sample-and-hold timing-making it suitable for precision analog measurements in industrial sensing applications.
TM4C1232H6PMI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- Tiva™ C
- Packaging:
- Bulk
- 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
- 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:
TM4C1232H6PMI FAQ
1.How can I place an order for TM4C1232H6PMI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1232H6PMI 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 TM4C1232H6PMI reliable?
The price and inventory of TM4C1232H6PMI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1232H6PMI is usually 5 days.
3.What payment methods are accepted for TM4C1232H6PMI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1232H6PMI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1232H6PMI?
TM4C1232H6PMI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1232H6PMI 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 TM4C1232H6PMI?
For technical support, including TM4C1232H6PMI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1232H6PMI requirements.
6.How does Aetrix verify that TM4C1232H6PMI is sourced from the original manufacturer or authorized distributors?
All TM4C1232H6PMI 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 TM4C1232H6PMI meets industry standards.
7.What is the process for return or replacement of TM4C1232H6PMI?
All TM4C1232H6PMI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1232H6PMI, 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 TM4C1232H6PMI part is unused and in its original packaging.
Return procedure for TM4C1232H6PMI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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