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Texas Instruments TM4C1231D5PZI
- Part No.:
- TM4C1231D5PZI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C1231D5PZI.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,889
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Product details
Overview
TM4C1231D5PZI 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 a 12-bit 1MSPS ADC and dual 32-bit general-purpose timers. It supports USB 2.0 Device/Host/OTG, multiple UARTs, I²C, SPI, and PWM outputs, and targets industrial control, motor drive, and sensor hub applications.
For engineers reviewing the TM4C1231D5PZI datasheet, TM4C1231D5PZI pinout, TM4C1231D5PZI application, or TM4C1231D5PZI equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +105°C industrial temperature grade, USB OTG capability, hibernation module with RTC and battery-backed memory, and integrated FPU for deterministic floating-point math in real-time control loops.
Technical Context
The TM4C1231D5PZI implements a full-featured ARM Cortex-M4F core with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC) supporting up to 80 interrupts. Its system-level integration includes a hibernation module with real-time clock, battery-backed RAM, and wake-on-RTC or external pin, enabling ultra-low-power operation.
Peripherals are tightly coupled via a 32-bit AHB bus matrix and APB bridges, supporting simultaneous high-bandwidth transfers - e.g., μDMA-driven ADC sampling at 1 MSPS into SRAM while USB bulk transfers stream data over OTG. Clocking is managed by a programmable PLL with internal oscillator and multiple gated peripheral clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware FPU and MPU - enables deterministic real-time control with IEEE 754 single-precision math and memory isolation. |
| Memory | 256 KB on-chip flash (with ECC), 32 KB SRAM, 2 KB EEPROM - supports firmware updates, data logging, and parameter storage without external components. |
| ADC | 12-bit, 1 MSPS, 12-channel SAR ADC with hardware averaging and digital comparators - suitable for precision current/voltage sensing in motor control. |
| Timers | Dual 32-bit general-purpose timers (GPTM), each configurable as two 16-bit timers or one 32-bit timer; plus watchdog and hibernation timers - provides flexible timing for PWM generation, input capture, and low-power wake scheduling. |
| USB | USB 2.0 OTG controller with integrated PHY - allows device/host/OTG operation without external transceiver, enabling field-upgradable firmware and PC-connected diagnostics. |
| Temperature Range | -40°C to +105°C industrial grade - qualified for use in enclosed industrial enclosures and automotive under-hood auxiliary systems. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and offers full GPIO, analog, and communication pin access. |
Pinout & Package
TM4C1231D5PZI is housed in a 100-pin LQFP package (PZ suffix), with exposed thermal pad for enhanced heat dissipation in continuous 80 MHz operation. Pin functions support multiplexed I/O across GPIO, analog inputs, UART/SPI/I²C/USB signals, and dedicated debug (SWD/JTAG) pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDUSB | Power supply rails | Separate digital (VDD), analog (VDDA), and USB PHY (VDDUSB) supplies enable noise isolation and stable ADC/USB operation. |
| PD0–PD7, PE0–PE5, etc. | General-purpose I/O | 100-pin package provides 69 GPIOs with configurable pull-up/down, slew rate, and drive strength - supports direct LED driving, switch sensing, and level-shifted interfaces. |
| USB0VBUS, USB0ID, USB0DM, USB0DP | USB 2.0 OTG interface | Dedicated USB pins with internal transceiver eliminate need for external PHY; ID pin enables OTG role negotiation. |
| ADC0_IN0–ADC0_IN11 | Analog input channels | 12 dedicated ADC input pins mapped to internal 12-bit SAR converter - supports simultaneous sampling of voltage, current, and temperature in closed-loop systems. |
| SWCLK, SWDIO | ARM Serial Wire Debug | 2-pin debug interface replaces JTAG for reduced pin count; supports full halt-mode debugging and flash programming. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module with RTC | Enables sub-1 µA sleep current with wake-on-timer or external interrupt - extends battery life in portable sensor nodes and remote monitoring devices. |
| Integrated USB 2.0 OTG | Eliminates external transceiver and reduces BOM cost; supports CDC, HID, and mass storage class firmware updates and diagnostics. |
| μDMA Controller (32 channels) | Offloads CPU from peripheral data movement - enables zero-CPU-overhead ADC-to-SRAM streaming and concurrent UART/USB data buffering. |
| Hardware Floating-Point Unit | Accelerates trigonometric, filter, and PID computations - improves loop execution time and determinism in motor control and digital power applications. |
| Programmable Clock System | Multiple PLL configurations, internal 16 MHz RC oscillator, and per-peripheral clock gating - simplifies clock tree design and enables dynamic power scaling. |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors using field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Real-time computation engine executing FOC loops, PWM generation, ADC sampling, and fault monitoring. Use Value: Hardware FPU delivers <1 µs sine/cosine and sqrt operations; dual GPTMs provide precise 3-phase PWM with dead-time insertion and fault shutdown. | Use Scenario: Multi-sensor data aggregation (temperature, humidity, pressure, motion) with local preprocessing and wireless upload. IC Role / Device Role / Timing Role: Central sensor fusion node managing analog/digital sensor interfaces, hibernation scheduling, and USB/UART host communication. Use Value: Integrated 12-bit ADC with hardware averaging reduces noise in ambient sensing; hibernation module achieves <1 µA standby with RTC wake every 10 seconds. |
| Programmable Logic Controller (PLC) I/O Module | USB-Enabled Test Equipment |
Use Scenario: DIN-rail mounted I/O expansion module with digital input/output, analog input, and isolated communication. IC Role / Device Role / Timing Role: Main controller handling scan-cycle timing, signal conditioning, protocol translation (Modbus RTU/ASCII), and diagnostics. Use Value: 69 GPIOs support configurable sourcing/sinking; built-in EEPROM stores calibration data and configuration; wide temperature range ensures reliability in factory environments. | Use Scenario: Portable oscilloscope, logic analyzer, or power meter with PC connectivity for waveform capture and analysis. IC Role / Device Role / Timing Role: High-speed data acquisition front-end and USB device controller managing real-time sample streaming. Use Value: 1 MSPS ADC captures transient events; USB OTG enables CDC-class virtual COM port for seamless PC driver integration and bulk data transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C1294NCPDT | ARM Cortex-M4F @ 120 MHz, 1 MB flash, 256 KB SRAM, integrated Ethernet MAC + PHY, no hibernation module | Better suited for networked HMI and gateway applications; lacks RTC-backed hibernation and lower power sleep modes | Select when Ethernet connectivity and higher processing bandwidth outweigh low-power hibernation needs. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB SRAM, no integrated USB PHY, different peripheral set (no hibernation, no USB OTG) | Requires external USB transceiver; stronger DSP instruction set but less integrated analog and power management | Choose for high-throughput signal processing where external USB PHY and separate RTC chip are acceptable. |
Compared with TM4C1231D5PZI, TM4C1294NCPDT trades hibernation capability for Ethernet and higher clock speed, while STM32F407VGT6 offers greater raw performance but requires additional components for USB and low-power RTC functionality - making TM4C1231D5PZI optimal for cost-sensitive, battery-aware, USB-connected embedded control.
Availability
TM4C1231D5PZI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, PLC I/O modules, and USB-enabled test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TM4C1231D5PZI 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, embedded processing, and wireless technologies for industrial, automotive, and consumer markets.
The Tiva C Series - including TM4C1231D5PZI - was designed specifically for cost-effective, high-integration microcontroller applications requiring USB connectivity, analog sensing, and deterministic real-time control in harsh environments.
FAQ
What is the maximum operating frequency of the TM4C1231D5PZI?
The TM4C1231D5PZI operates at a maximum CPU frequency of 80 MHz, achieved via its integrated PLL with support for multiple clock sources including internal 16 MHz RC oscillator, external crystal, or precision external clock. This frequency is fully rated across the -40°C to +105°C temperature range and supports deterministic real-time execution of control algorithms in the TM4C1231D5PZI.
Does the TM4C1231D5PZI include an integrated USB physical layer?
Yes, the TM4C1231D5PZI integrates a full-speed USB 2.0 OTG physical layer (PHY) with dedicated VDDUSB supply and routing for USB0DM/USB0DP pins. This eliminates the need for an external transceiver and enables native USB Device, Host, and On-The-Go operation directly from the TM4C1231D5PZI without additional components.
What analog features are included in the TM4C1231D5PZI?
The TM4C1231D5PZI includes a 12-bit, 1 MSPS SAR analog-to-digital converter with 12 input channels, hardware oversampling and averaging, four digital comparators, and an internal temperature sensor. It also supports differential input mode and programmable sample sequencing - all implemented within the TM4C1231D5PZI die without external support circuitry.
Is the TM4C1231D5PZI supported by TI's TivaWare software suite?
Yes, the TM4C1231D5PZI is fully supported by Texas Instruments' TivaWare™ Peripheral Driver Library, including device-specific startup code, peripheral drivers, USB stack, and example projects for all major IDEs. TivaWare provides production-ready, tested APIs that abstract register-level access and accelerate development for the TM4C1231D5PZI.
What debug interface does the TM4C1231D5PZI use?
The TM4C1231D5PZI supports ARM Serial Wire Debug (SWD) using SWCLK and SWDIO pins, providing full debug visibility including halt-mode debugging, memory inspection, and flash programming. It also retains legacy JTAG support for compatibility, but SWD is the recommended interface due to its 2-pin footprint and robustness - both are natively supported on the TM4C1231D5PZI.
TM4C1231D5PZI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 69
- 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:
TM4C1231D5PZI FAQ
1.How can I place an order for TM4C1231D5PZI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231D5PZI 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 TM4C1231D5PZI reliable?
The price and inventory of TM4C1231D5PZI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231D5PZI is usually 5 days.
3.What payment methods are accepted for TM4C1231D5PZI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231D5PZI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231D5PZI?
TM4C1231D5PZI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231D5PZI 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 TM4C1231D5PZI?
For technical support, including TM4C1231D5PZI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231D5PZI requirements.
6.How does Aetrix verify that TM4C1231D5PZI is sourced from the original manufacturer or authorized distributors?
All TM4C1231D5PZI 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 TM4C1231D5PZI meets industry standards.
7.What is the process for return or replacement of TM4C1231D5PZI?
All TM4C1231D5PZI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231D5PZI, 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 TM4C1231D5PZI part is unused and in its original packaging.
Return procedure for TM4C1231D5PZI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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