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Texas Instruments TM4C1232D5PMI7R
- Part No.:
- TM4C1232D5PMI7R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1232D5PMI7R.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,010
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Product details
Overview
TM4C1232D5PMI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 device controller, 12-bit ADC (1 MSPS, 12 channels), and dual CAN 2.0A/B controllers. It serves as a main system controller in industrial motor drives requiring real-time control, analog sensing, and fieldbus connectivity.
For engineers reviewing the TM4C1232D5PMI7R datasheet, TM4C1232D5PMI7R pinout, TM4C1232D5PMI7R application, or TM4C1232D5PMI7R equivalent, key selection criteria include its 80 MHz M4F core with FPU, USB + dual CAN integration, 12-bit/1-MSPS ADC performance, and -40°C to +85°C industrial temperature rating.
Technical Context
The TM4C1232D5PMI7R implements a full-featured ARM Cortex-M4F core with hardware floating-point unit and NVIC supporting up to 80 interrupts. Its system-level integration includes ROM-based bootloader, 256 KB on-chip flash with error correction, and 32 KB SRAM with parity protection.
Peripheral subsystems include two independent CAN controllers compliant with ISO 11898-1:2003, a USB 2.0 device-only PHY with integrated transceiver, and a 12-channel, 12-bit successive-approximation ADC with programmable sample rate up to 1 MSPS and internal temperature sensor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with single-precision FPU - enables deterministic real-time math for motor control and sensor fusion. |
| Flash Memory | 256 KB with ECC - supports robust firmware storage and over-the-air updates with error detection/correction. |
| SRAM | 32 KB with parity - provides reliable data buffering and stack space for interrupt-heavy applications. |
| ADC | 12-bit, 12-channel, 1 MSPS - delivers high-resolution analog acquisition for current/voltage sensing in power electronics. |
| CAN Interfaces | Dual CAN 2.0A/B controllers - allows simultaneous communication on two isolated CAN buses for distributed control systems. |
| USB Interface | USB 2.0 Device-only with integrated PHY - enables direct PC connectivity for configuration, diagnostics, and firmware download without external transceiver. |
| Operating Temp | -40°C to +85°C - qualified for industrial environments including factory automation and outdoor equipment. |
Pinout & Package
TM4C1232D5PMI7R is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per TI SPMS342E datasheet Rev E (June 2014), with dedicated VDDA/VSSA for analog supply isolation and multiple GPIO groups supporting peripheral multiplexing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate digital (VDD), analog (VDDA), and core (VDDC) rails enable noise isolation and optimal ADC/SYSCLK stability. |
| PA0–PA7, PB0–PB7, etc. | GPIO with alternate functions | Each port supports UART, SSI, I²C, PWM, or timer capture - allows flexible peripheral mapping without PCB redesign. |
| CAN0RX/CAN0TX, CAN1RX/CAN1TX | Dedicated CAN transceiver I/O | Hardwired to internal CAN controllers - eliminates need for external level-shifting or routing logic. |
| USB0EPEN, USB0PFLT, USB0VBUS | USB physical layer control | Direct interface to USB connector pins - supports VBUS monitoring, pull-up enable, and overcurrent fault detection. |
| ADC0CH0–ADC0CH11 | Analog input channels | 12 dedicated pins mapped to internal 12-bit SAR ADC - supports simultaneous sampling across multiple sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision math reduces CPU load in PID loops and FFT-based signal analysis. |
| ROM Bootloader | Pre-programmed TI-provided bootloader enables UART/USB-based firmware updates without external programmer. |
| Dual CAN Controllers | Independent message RAM, filters, and FIFOs allow concurrent handling of CANopen and J1939 traffic on separate buses. |
| μDMA Controller | 32-channel micro-DMA offloads CPU during ADC sampling, UART transfers, and USB packet handling - improves real-time response. |
| Internal Temperature Sensor | Calibrated on-die sensor provides system thermal monitoring without external components - usable for thermal derating or fan control. |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors using field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Primary real-time controller executing FOC calculations, PWM generation, current sensing, and CAN-based command interface. Use Value: 80 MHz M4F core with FPU delivers sub-microsecond loop timing; dual CAN supports motor drive and HMI bus separation. | Use Scenario: Protocol translation between BACnet MS/TP (RS-485) and BACnet/IP over Ethernet via external MAC. IC Role / Device Role / Timing Role: Central protocol gateway managing serial-to-network bridging, schedule execution, and local sensor polling. Use Value: Integrated USB enables field technician configuration; 256 KB flash stores multiple protocol stacks and web UI assets. |
| Smart Grid Edge Node | Factory Asset Monitor |
Use Scenario: Distribution transformer monitoring with voltage/current harmonics analysis and RF mesh backhaul. IC Role / Device Role / Timing Role: Data acquisition and preprocessing unit performing RMS calculation, THD estimation, and time-stamped event logging. Use Value: 12-bit/1-MSPS ADC captures waveform samples at 16 kHz; μDMA enables zero-CPU-overhead streaming to external wireless module. | Use Scenario: Vibration and temperature monitoring of CNC spindles using MEMS accelerometers and thermistors. IC Role / Device Role / Timing Role: Edge intelligence node performing FFT-based spectral analysis and anomaly detection before cloud upload. Use Value: On-chip FPU accelerates vibration signature analysis; internal temperature sensor validates thermal operating envelope. |
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 1 MB/s SD card interface and 32 KB EEPROM; no USB PHY - requires external transceiver. | Better suited for data-logging systems needing persistent nonvolatile storage; lacks integrated USB device capability. | Select when EEPROM endurance and SDIO throughput outweigh USB convenience. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB RAM, no native CAN FD - only classical CAN 2.0B; USB OTG HS capable. | Higher clock speed and memory support more complex GUI or protocol stacks; lacks dual CAN and integrated USB device PHY. | Select when higher compute headroom and USB host capability are required, and dual CAN is not mandatory. |
Compared with TM4C1232D5PMI7R, TM4C123GH6PM trades USB integration for enhanced nonvolatile storage and SDIO, while STM32F407VGT6 offers greater processing bandwidth and memory but requires external CAN transceivers and lacks the same level of analog integration for sensor front-end tasks.
Availability
TM4C1232D5PMI7R is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, smart grid edge nodes, and factory asset monitors requiring stable component supply across multi-year production cycles.
Supply support for TM4C1232D5PMI7R 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 TM4C1232D5PMI7R - was designed specifically for cost-sensitive, real-time industrial applications requiring mixed-signal integration, deterministic control, and fieldbus connectivity without external support ICs.
FAQ
What is the maximum operating frequency of the TM4C1232D5PMI7R?
The TM4C1232D5PMI7R operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL with support for multiple clock sources including external crystals, internal oscillators, and USB SOF synchronization. This frequency is fully supported across the entire industrial temperature range (-40°C to +85°C) and enables deterministic execution of real-time control loops in applications such as motor drives and power converters.
Does the TM4C1232D5PMI7R include an integrated USB physical layer?
Yes, the TM4C1232D5PMI7R integrates a full-speed USB 2.0 device PHY with internal transceiver, eliminating the need for external USB level-shifting components. It supports USB device enumeration, control transfers, bulk/intr endpoints, and VBUS sensing - all managed directly by the on-chip USB controller without external silicon.
How many CAN interfaces does the TM4C1232D5PMI7R support?
The TM4C1232D5PMI7R supports two independent CAN 2.0A/B controllers, each with dedicated message RAM, transmit/receive FIFOs, and programmable acceptance filtering. These controllers operate concurrently and can be configured for different bit rates and protocols - enabling use cases like separating motion control traffic from supervisory messaging in industrial networks.
What is the ADC resolution and sampling rate of the TM4C1232D5PMI7R?
The TM4C1232D5PMI7R features a 12-bit successive-approximation ADC with up to 12 input channels and a maximum sampling rate of 1 MSPS. It includes hardware averaging, programmable trigger sources (timer, GPIO, software), and an internal temperature sensor - making it suitable for precision analog measurement in motor current sensing, power quality monitoring, and environmental sensing.
Is the TM4C1232D5PMI7R pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1232D5PMI7R is not pin-compatible with other Tiva C Series devices such as the TM4C123GH6PM or TM4C1294NCPDT. While they share the same 64-pin LQFP footprint, pin functions differ significantly - especially for USB, CAN, and peripheral multiplexing. Migration requires PCB layout revision and firmware adaptation to match the specific signal mapping of TM4C1232D5PMI7R.
TM4C1232D5PMI7R 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, 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:
TM4C1232D5PMI7R FAQ
1.How can I place an order for TM4C1232D5PMI7R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1232D5PMI7R 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 TM4C1232D5PMI7R reliable?
The price and inventory of TM4C1232D5PMI7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1232D5PMI7R is usually 5 days.
3.What payment methods are accepted for TM4C1232D5PMI7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1232D5PMI7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1232D5PMI7R?
TM4C1232D5PMI7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1232D5PMI7R 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 TM4C1232D5PMI7R?
For technical support, including TM4C1232D5PMI7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1232D5PMI7R requirements.
6.How does Aetrix verify that TM4C1232D5PMI7R is sourced from the original manufacturer or authorized distributors?
All TM4C1232D5PMI7R 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 TM4C1232D5PMI7R meets industry standards.
7.What is the process for return or replacement of TM4C1232D5PMI7R?
All TM4C1232D5PMI7R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1232D5PMI7R, 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 TM4C1232D5PMI7R part is unused and in its original packaging.
Return procedure for TM4C1232D5PMI7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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