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Texas Instruments TM4C1231E6PZI7
- Part No.:
- TM4C1231E6PZI7
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C1231E6PZI7.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,745
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Product details
Overview
TM4C1231E6PZI7 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated analog peripherals including a 12-bit 1MSPS ADC, two 16-bit PWM modules, and USB 2.0 OTG. It operates at up to 80 MHz and supports industrial temperature range (–40°C to +105°C) in a 100-pin LQFP package. It serves as a main system controller in motor control, industrial sensing, and USB-connected embedded devices.
For engineers reviewing the TM4C1231E6PZI7 datasheet, TM4C1231E6PZI7 pinout, TM4C1231E6PZI7 application, or TM4C1231E6PZI7 equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, dual 16-bit PWM with fault protection, 12-bit ADC with hardware averaging, and ARM Cortex-M4F core with single-precision FPU for deterministic real-time signal processing.
Technical Context
The TM4C1231E6PZI7 integrates a 32-bit ARM Cortex-M4F core with hardware floating-point unit and memory protection unit, enabling deterministic execution of control algorithms and secure firmware partitioning. Its system-level integration includes a hibernation module with RTC, battery-backed SRAM, and VDD3ON power mode for ultra-low-power wake-up scenarios.
Peripherals are tightly coupled via the μDMA controller supporting 32-channel arbitration, enabling zero-CPU-overhead data movement between ADC, UART, SPI, I²C, and memory. Clock management includes multiple PLL configurations, internal precision oscillators, and external crystal support up to 25 MHz, with programmable dividers for peripheral-specific clock domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with single-precision FPU and MPU - enables real-time math-intensive tasks without software emulation. |
| Memory | 256 KB Flash (with ECC), 32 KB SRAM, 2 KB EEPROM - supports robust firmware storage, runtime variables, and nonvolatile configuration data. |
| ADC | 12-bit, 1 MSPS, 12-channel SAR ADC with hardware averaging and digital comparators - suitable for high-resolution sensor acquisition with built-in filtering. |
| PWM | Two 16-bit PWM modules with fault inputs, dead-band generation, and synchronous update - designed for three-phase motor control and power supply regulation. |
| USB | USB 2.0 OTG with integrated PHY and 1 KB FIFO - eliminates need for external transceiver in host/peripheral designs. |
| Hibernate | Hibernation module with RTC, battery-backed 256-byte RAM, and VDD3ON mode - achieves sub-1 µA sleep current with fast wake-up from external or time-based events. |
| Temperature Range | –40°C to +105°C - qualified for extended industrial and automotive under-hood applications. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and thermal management requirements. |
Pinout & Package
TM4C1231E6PZI7 is housed in a 100-pin LQFP package (PZ suffix) with exposed thermal pad, rated for industrial temperature operation. Pin functions are defined per TI SPMS337E datasheet Rev E (June 2014), with dedicated JTAG/SWD debug pins, multiple GPIO banks supporting peripheral multiplexing, and dedicated analog input channels routed to ADC0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power Supply Inputs | Separate digital, analog, and core supplies enable noise isolation and precise ADC reference stability. |
| GND, GNDA | Ground Returns | Dedicated analog ground plane minimizes coupling into sensitive ADC and comparator circuits. |
| USB0VBUS, USB0ID, USB0DM, USB0DP | USB 2.0 OTG Interface | Integrated PHY eliminates external transceiver; VBUS detection and ID pin support OTG role negotiation. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | Synchronous Serial Interface | Hardware SPI master/slave with programmable clock polarity/phase and FIFO buffering for reliable sensor or display communication. |
| U0RX, U0TX, U1RX, U1TX | UART Channels | Two independent UARTs with IrDA, ISO 7816, and modem handshake support - ideal for diagnostics and legacy protocol bridging. |
| PH0, PH1, PH2, PH3 | PWM Outputs | Four complementary PWM outputs from PWM0 generator - configured for three-phase inverter gate drive with fault shutdown. |
| AIN0–AIN11 | Analog Inputs | 12 dedicated ADC0 input pins with internal temperature sensor channel - supports simultaneous sampling across multiple sensors. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO Banks | Configurable digital I/O with slew-rate control, pull-up/down, and interrupt capability - used for status LEDs, buttons, and peripheral enable signals. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M4F Core with FPU | Enables real-time execution of PID loops, FFTs, and sensor fusion algorithms without integer approximation errors. |
| Hibernation Module with RTC | Supports time-stamped wake-up from sub-1 µA sleep using external interrupts or calendar alarms - critical for battery-powered remote monitoring. |
| μDMA Controller (32 Channels) | Offloads CPU from data movement between ADC, UART, SPI, and memory - preserves deterministic timing in interrupt-driven systems. |
| Integrated USB 2.0 OTG PHY | Reduces BOM count and PCB area by eliminating external transceiver while supporting device/host/OTG roles in firmware. |
| Dual 16-bit PWM Modules | Provide synchronized, fault-protected output pairs with dead-band insertion - essential for BLDC motor control and digital power conversion. |
| 12-bit 1 MSPS ADC with Hardware Averaging | Delivers effective resolution >13 bits through configurable oversampling - improves SNR in noisy industrial environments without software overhead. |
Applications
| Industrial Motor Control | USB-Connected Sensor Hub |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Main system controller executing field-oriented control (FOC) algorithms, managing gate drivers via PWM, and monitoring current/voltage feedback via ADC. Use Value: Integrated FPU accelerates trigonometric and matrix operations; dual PWM modules with fault inputs ensure safe shutdown during overcurrent events. | Use Scenario: Aggregation and local preprocessing of temperature, humidity, and pressure data from multiple I²C/SPI sensors before USB upload. IC Role / Device Role / Timing Role: Central data concentrator with real-time sensor fusion, USB device interface, and low-power hibernation between measurement cycles. Use Value: On-chip USB PHY enables plug-and-play connectivity; hibernation module reduces average power to <10 µA during idle periods. |
| Programmable Logic Controller (PLC) I/O Module | Smart Power Metering Front-End |
Use Scenario: Digital I/O expansion module with isolated inputs/outputs, status LED control, and Modbus RTU over UART. IC Role / Device Role / Timing Role: Real-time I/O manager handling GPIO scanning, UART protocol stack, and watchdog supervision for fail-safe operation. Use Value: Multiple UARTs support simultaneous diagnostics and fieldbus communication; robust Flash ECC prevents firmware corruption in electrically noisy factory floors. | Use Scenario: High-accuracy energy metering using shunt-based current sensing and voltage scaling, with time-of-use tariff logging. IC Role / Device Role / Timing Role: Precision analog front-end controller performing RMS calculations, harmonic analysis, and RTC-synchronized data stamping. Use Value: 12-bit ADC with hardware averaging achieves stable 14-bit ENOB; battery-backed hibernation RAM retains tariff tables and event logs during AC loss. |
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 core, but adds CAN controller and Ethernet MAC; 64-pin LQFP vs. 100-pin LQFP. | Targeted at networked industrial nodes requiring CAN bus or Ethernet - not pin-compatible due to different package and peripheral mapping. | Select TM4C123GH6PM only if CAN or Ethernet is required and PCB layout allows 64-pin footprint change. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, no integrated USB PHY, requires external transceiver; 100-pin LQFP but different pinout and peripheral assignment. | Better suited for high-throughput applications like audio processing or graphics, but lacks hibernation module and integrated USB PHY. | Choose STM32F407VGT6 when higher clock speed and larger Flash are needed, accepting added BOM cost and complexity for USB interface. |
Compared with TM4C123GH6PM and STM32F407VGT6, the TM4C1231E6PZI7 offers optimal balance of USB integration, ultra-low-power hibernation, and industrial-grade analog peripherals in a 100-pin LQFP - making it uniquely suited for cost-sensitive, USB-connected, battery-aware embedded controllers without CAN or Ethernet requirements.
Availability
TM4C1231E6PZI7 is available at Aetrix Electronics and suitable for industrial motor control, USB-connected sensor hubs, and smart power metering applications requiring stable component supply, long-term lifecycle assurance, and full production traceability.
Supply support for TM4C1231E6PZI7 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 with over 90 years of innovation in industrial, automotive, and consumer electronics.
The TM4C1231E6PZI7 belongs to TI's Tiva C Series microcontroller family, designed specifically for cost-effective, high-integration embedded control applications demanding USB connectivity, analog sensing, and deterministic real-time performance in harsh environments.
FAQ
What is the maximum operating frequency of the TM4C1231E6PZI7?
The TM4C1231E6PZI7 operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL with support for external crystal inputs up to 25 MHz or internal precision oscillator. This frequency applies to the ARM Cortex-M4F core, bus matrix, and all on-chip peripherals unless individually gated or divided. The TM4C1231E6PZI7 maintains full specification compliance-including ADC sampling rate, PWM resolution, and USB timing-at this speed across its industrial temperature range.
Does the TM4C1231E6PZI7 include an integrated USB physical layer (PHY)?
Yes, the TM4C1231E6PZI7 integrates a full-speed USB 2.0 OTG physical layer with on-die transceivers, eliminating the need for an external USB PHY chip. It supports device, host, and OTG modes with dedicated VBUS sensing, ID pin detection, and 1 KB packet buffer. This integration reduces BOM cost and PCB area while simplifying USB firmware development using TI's TivaWare driver library for the TM4C1231E6PZI7.
What analog features are included in the TM4C1231E6PZI7?
The TM4C1231E6PZI7 includes a 12-bit, 1 MSPS analog-to-digital converter (ADC) with 12 input channels, hardware sample averaging (up to 64x), digital comparators, and an internal temperature sensor. It also provides two independent 16-bit PWM modules with fault inputs, dead-band generation, and synchronous update-enabling precise analog signal acquisition and control loop execution without external components.
Is the TM4C1231E6PZI7 qualified for industrial temperature operation?
Yes, the TM4C1231E6PZI7 is specified for operation from –40°C to +105°C ambient temperature and is packaged in an industrial-grade 100-pin LQFP (PZ). Its Flash memory includes error-correcting code (ECC), and the hibernation module supports battery-backed retention at full temperature range - confirming suitability for deployment in factory automation, motor drives, and outdoor metering equipment.
How does the hibernation module in the TM4C1231E6PZI7 reduce power consumption?
The hibernation module in the TM4C1231E6PZI7 enables sub-1 µA deep-sleep current by powering down the main system while retaining RTC functionality, calendar alarm, and 256 bytes of battery-backed SRAM. Wake-up can occur via external GPIO interrupt, RTC match event, or loss of main supply (VDD), with typical wake-up latency under 10 µs. This capability makes the TM4C1231E6PZI7 ideal for battery-powered edge nodes requiring long operational life between charges or replacements.
TM4C1231E6PZI7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tube
- 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
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 128KB (128K 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 22x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1231E6PZI7 FAQ
1.How can I place an order for TM4C1231E6PZI7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231E6PZI7 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 TM4C1231E6PZI7 reliable?
The price and inventory of TM4C1231E6PZI7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231E6PZI7 is usually 5 days.
3.What payment methods are accepted for TM4C1231E6PZI7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231E6PZI7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231E6PZI7?
TM4C1231E6PZI7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231E6PZI7 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 TM4C1231E6PZI7?
For technical support, including TM4C1231E6PZI7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231E6PZI7 requirements.
6.How does Aetrix verify that TM4C1231E6PZI7 is sourced from the original manufacturer or authorized distributors?
All TM4C1231E6PZI7 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 TM4C1231E6PZI7 meets industry standards.
7.What is the process for return or replacement of TM4C1231E6PZI7?
All TM4C1231E6PZI7 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231E6PZI7, 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 TM4C1231E6PZI7 part is unused and in its original packaging.
Return procedure for TM4C1231E6PZI7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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