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Texas Instruments TM4C1232D5PMI
- Part No.:
- TM4C1232D5PMI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1232D5PMI.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:114
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Product details
Overview
TM4C1232D5PMI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, and integrated analog peripherals including 12-bit ADC with 12 channels and temperature sensor. It supports USB 2.0 Device/Host/OTG, multiple UARTs, I²C, SSI, PWM, and GPIOs - deployed in industrial motor control, smart sensors, and embedded HMI systems.
For engineers reviewing the TM4C1232D5PMI datasheet, TM4C1232D5PMI pinout, TM4C1232D5PMI application, or TM4C1232D5PMI equivalent, key selection criteria include its 80 MHz Cortex-M4F core with FPU, 100-pin LQFP package, -40°C to +105°C industrial temperature range, USB OTG capability, and integrated analog front-end for sensor interfacing.
Technical Context
The TM4C1232D5PMI integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and DSP extensions. It features a 32-bit bus architecture, memory protection unit (MPU), and nested vectored interrupt controller (NVIC) with 8-level priority grouping.
System-level integration includes μDMA controller (32-channel), ROM-based bootloader, system control block with clock gating and power management (sleep/deep-sleep modes), and debug support via JTAG/SW-DP with SWO trace output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables real-time signal processing with hardware FPU for motor control algorithms. |
| Flash Memory | 256 KB - sufficient for complex firmware with USB stack, RTOS, and application logic without external storage. |
| SRAM | 32 KB - supports dual-buffered communication stacks and real-time data buffering for ADC/PWM subsystems. |
| ADC | 12-bit, 12-channel, 1 MSPS - allows simultaneous sampling of multiple analog sensors (e.g., current, voltage, temperature) in closed-loop systems. |
| USB Interface | USB 2.0 OTG - enables device/host/OTG operation without external transceiver; supports HID, CDC, and mass storage class implementations. |
| Operating Temp | -40°C to +105°C - qualified for industrial environments including factory automation and outdoor metering equipment. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and offers full peripheral pin access. |
Pinout & Package
TM4C1232D5PMI is housed in a 100-pin LQFP package (Pb-free, RoHS-compliant), with exposed thermal pad for enhanced thermal dissipation in continuous operation.
| 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 for noise-sensitive ADC and PLL stability. |
| GND, GNDA, GNDC | Ground returns | Analog/digital/core ground separation prevents coupling between high-speed digital switching and precision analog measurements. |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role negotiation (host/device) based on VBUS presence and ID pin state per USB OTG specification. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | SSI0 peripheral interface | Supports SPI-compatible master/slave operation at up to 20 MHz - used for display drivers, EEPROM, or sensor communication. |
| U0RX, U0TX, U1RX, U1TX | UART0/1 serial I/O | Dual full-duplex UARTs with FIFOs - enable simultaneous debug console (UART0) and fieldbus interface (UART1) like RS-485 or Modbus. |
| PH0, PH1, PH2, PH3 | PWM outputs (PWM0) | Four complementary PWM outputs with dead-band control - suitable for three-phase inverter gate driving in BLDC motor control. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision math enables efficient implementation of PID controllers, FFTs, and sensor fusion without software emulation overhead. |
| μDMA Controller | 32-channel configurable DMA offloads CPU from data movement tasks - critical for high-throughput ADC sampling, USB bulk transfers, and display refresh. |
| Integrated Temperature Sensor | On-die sensor calibrated to ±3°C accuracy - provides real-time die temperature monitoring for thermal throttling or safety shutdown in motor drives. |
| ROM Bootloader | Factory-programmed ROM code supports in-system programming via UART, USB, or I²C - eliminates need for external programmer during production or field updates. |
| GPIO Pin Multiplexing | Each of 64 GPIO pins supports up to 8 alternate functions - allows flexible board layout and dynamic peripheral remapping without hardware changes. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers or conveyor systems using space-vector PWM and current sensing. IC Role / Device Role / Timing Role: Real-time computation engine executing FOC algorithm, generating synchronized PWM outputs, and sampling ADC channels at 10–20 kHz. Use Value: Integrated PWM generator with dead-band control, high-resolution ADC, and FPU reduce BOM count and improve current loop timing determinism vs. discrete MCU + analog IC solutions. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with wireless telemetry via UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital inputs, performing local preprocessing, and managing low-power sleep/wake cycles. Use Value: Ultra-low-power deep-sleep mode (1.1 µA) combined with wake-on-ADC threshold and internal temperature sensor extends battery life beyond 5 years in typical deployments. |
| Embedded HMI Controller | USB-Capable Field Programmer |
Use Scenario: Touch-enabled operator interface for PLCs or test equipment with graphical LCD, buttons, and status LEDs. IC Role / Device Role / Timing Role: Display controller managing parallel RGB interface, touch controller interface (I²C), and user input response with <10 ms latency. Use Value: Dedicated SSI and GPIO resources allow concurrent LCD refresh, capacitive touch scanning, and LED PWM dimming without CPU contention. | Use Scenario: Portable firmware updater for legacy industrial devices using USB mass storage class to drag-and-drop .bin files. IC Role / Device Role / Timing Role: USB device host that enumerates as removable drive, validates firmware CRC, and reprograms external SPI flash via QSPI interface. Use Value: On-chip USB OTG + ROM bootloader enables secure, field-upgradable firmware without requiring JTAG debugger or PC software dependencies. |
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, 192 KB SRAM, no integrated USB PHY - requires external USB transceiver. | Better raw performance and memory headroom; lacks integrated USB PHY and temperature sensor. | Select when higher clock speed and larger memory are required, and external USB components are acceptable. |
| MSP432P401RIPZT | ARM Cortex-M4F @ 48 MHz, 2 MB flash, 256 KB SRAM, integrated 14-bit SAR ADC, lower power consumption. | Optimized for ultra-low-power sensing; slower CPU, no USB OTG, limited PWM resolution. | Select for battery-powered applications prioritizing energy efficiency over USB connectivity and motor control features. |
Compared with STM32F407VGT6 and MSP432P401RIPZT, the TM4C1232D5PMI uniquely balances USB OTG integration, industrial temperature rating, and analog subsystem capability - making it optimal for cost-sensitive, USB-connected industrial edge nodes where mixed-signal processing and field serviceability are essential.
Availability
TM4C1232D5PMI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and embedded HMI applications requiring stable component supply across multi-year production lifecycles.
Supply support for TM4C1232D5PMI 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 and embedded processing solutions for industrial, automotive, and consumer markets since 1930.
The Tiva C Series - including the TM4C1232D5PMI - was designed specifically for cost-sensitive, real-time embedded applications demanding integrated analog, USB, and motor control peripherals in a single chip.
FAQ
What is the maximum operating frequency of the TM4C1232D5PMI?
The TM4C1232D5PMI operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL locked to an external crystal or oscillator. This frequency is sustained across the full industrial temperature range (-40°C to +105°C) and supports deterministic real-time execution of control loops and communication stacks without throttling.
Does the TM4C1232D5PMI include a USB physical layer (PHY)?
Yes, the TM4C1232D5PMI integrates a full-speed USB 2.0 PHY compliant with the USB specification. It supports device, host, and OTG roles without requiring external transceivers - enabling direct connection to USB cables and enumeration as HID, CDC, or mass storage devices using only the onboard controller and PHY.
How much flash and RAM does the TM4C1232D5PMI provide?
The TM4C1232D5PMI includes 256 KB of on-chip flash memory for program storage and 32 KB of SRAM for runtime data. Flash supports in-application programming (IAP) and has error correction (ECC) enabled by default. SRAM is split into contiguous blocks accessible by CPU and DMA, with no wait states at maximum clock speed.
What analog peripherals are integrated into the TM4C1232D5PMI?
The TM4C1232D5PMI integrates a 12-bit, 12-channel, 1 MSPS analog-to-digital converter (ADC) with hardware averaging and digital comparators, plus an on-die temperature sensor calibrated to ±3°C. It also supports differential input mode and programmable sample sequencing - all usable concurrently with CPU execution via μDMA.
Is the TM4C1232D5PMI supported by TI's official software development tools?
Yes, the TM4C1232D5PMI is fully supported by Texas Instruments' TivaWare™ software suite, Code Composer Studio™ IDE, and Energia Arduino-compatible framework. TI provides driver libraries, example projects for USB, ADC, PWM, and FreeRTOS porting guides - all validated for TM4C1232D5PMI silicon revision C and later.
TM4C1232D5PMI 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
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 49
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1232D5PMI FAQ
1.How can I place an order for TM4C1232D5PMI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1232D5PMI 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 TM4C1232D5PMI reliable?
The price and inventory of TM4C1232D5PMI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1232D5PMI is usually 5 days.
3.What payment methods are accepted for TM4C1232D5PMI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1232D5PMI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1232D5PMI?
TM4C1232D5PMI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1232D5PMI 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 TM4C1232D5PMI?
For technical support, including TM4C1232D5PMI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1232D5PMI requirements.
6.How does Aetrix verify that TM4C1232D5PMI is sourced from the original manufacturer or authorized distributors?
All TM4C1232D5PMI 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 TM4C1232D5PMI meets industry standards.
7.What is the process for return or replacement of TM4C1232D5PMI?
All TM4C1232D5PMI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1232D5PMI, 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 TM4C1232D5PMI part is unused and in its original packaging.
Return procedure for TM4C1232D5PMI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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