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Texas Instruments TM4C1231D5PZIR
- Part No.:
- TM4C1231D5PZIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C1231D5PZIR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TM4C1231D5PZIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB Flash, 32 KB SRAM, and integrated USB 2.0 OTG, PWM, ADC (12-bit, 1MSPS), and multiple serial interfaces (UART, SPI, I²C). It serves as a main application controller in industrial HMI, motor control edge nodes, and smart sensor gateways.
For engineers reviewing the TM4C1231D5PZIR datasheet, TM4C1231D5PZIR pinout, TM4C1231D5PZIR application, or TM4C1231D5PZIR equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +105°C industrial temperature grade, integrated hibernation module for ultra-low-power wake-up, and TivaWare™ software support for rapid firmware development.
Technical Context
The TM4C1231D5PZIR integrates a single-core ARM Cortex-M4F CPU with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It supports Thumb-2 instruction set and delivers up to 125 DMIPS at 80 MHz.
System-level integration includes a 12-channel μDMA controller, hibernation module with RTC and battery-backed memory, and analog subsystem with four 12-bit ADC sample sequencers supporting differential inputs and hardware averaging. Clock management supports multiple PLL configurations and deep-sleep modes with sub-2 µA hibernate current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU and MPU - enables deterministic real-time control with floating-point math acceleration. |
| Max Clock Frequency | 80 MHz - provides sufficient throughput for closed-loop motor control and sensor fusion algorithms. |
| Flash / SRAM | 256 KB Flash / 32 KB SRAM - supports medium-complexity embedded applications with bootloader, firmware, and data buffers. |
| ADC Performance | 12-bit, 1 MSPS, 12-channel - allows simultaneous sampling of multiple analog sensors with <1 µs conversion time. |
| USB Interface | USB 2.0 OTG - enables host/device capability for field configuration, firmware updates, or peripheral attachment without external PHY. |
| Operating Temperature | -40°C to +105°C - qualified for industrial environments including factory automation and outdoor metering. |
| Hibernate Current | 1.7 µA typical - enables multi-year battery life in always-on sensing nodes with RTC-triggered wake-up. |
Pinout & Package
TM4C1231D5PZIR is housed in a 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined per TI SPMS335E datasheet Rev E (June 2014), Table 1-1 "Pin Assignments".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply rails | Separate digital (VDD), analog (VDDA), and core (VDDC) supplies enable noise isolation and precise ADC reference stability. |
| GND, GNDA, GNDC | Ground returns | Dedicated analog (GNDA) and core (GNDC) grounds minimize coupling between high-speed logic and sensitive analog circuits. |
| USB0EPEN, USB0P, USB0N | USB 2.0 OTG physical layer | Integrated transceiver eliminates need for external USB PHY; EPEN enables internal pull-ups for device enumeration. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | Synchronous Serial Interface (SPI) | Hardware SPI master/slave interface with programmable clock polarity/phase and FIFO buffering for robust sensor communication. |
| U0RX, U0TX, U1RX, U1TX | UART signal pairs | Two independent UARTs support simultaneous debug console (U0) and modem/RS-485 interface (U1) with automatic flow control. |
| PH0, PH1, PH2, PH3 | Hibernate module I/O | Dedicated hibernation pins support RTC alarm output, external wake-up input, and battery voltage monitoring with internal comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Includes RTC, battery-backed RAM (2 KB), and wake-up on timer/alarm/external event - reduces system power to µA range while retaining state. |
| μDMA Controller | 12-channel, scatter-gather capable - offloads CPU during ADC sampling, UART transfers, or PWM waveform generation without interrupt overhead. |
| Analog Subsystem | Four independent 12-bit ADC sequencers with hardware averaging, temperature sensor, and digital comparators - enables autonomous analog monitoring. |
| TivaWare™ Software | TI-provided driver library, USB stack, and RTOS abstraction layer - accelerates development of USB HID devices, motor control, and sensor hubs. |
| GPIO Flexibility | 100-pin package offers 69 GPIOs with configurable slew rate, drive strength, and alternate function mapping - simplifies board layout and pin reuse. |
Applications
| Industrial Motor Control | Smart Sensor Gateway |
|---|---|
|
Use Scenario: Closed-loop control of BLDC motors in HVAC actuators and pump drives using space-vector PWM and current feedback. IC Role / Device Role / Timing Role: Main application controller executing FOC algorithm, managing gate drivers via PWM outputs, and sampling current/voltage via ADC. Use Value: Integrated 80 MHz Cortex-M4F with FPU computes torque/flux loops in <50 µs; 12-channel μDMA handles ADC-to-PWM synchronization without CPU intervention. |
Use Scenario: Aggregation and preprocessing of temperature, humidity, and CO₂ sensor data before wireless transmission to cloud infrastructure. IC Role / Device Role / Timing Role: Edge intelligence node performing local calibration, filtering, and protocol translation (I²C → UART → LoRaWAN). Use Value: On-chip 256 KB Flash stores sensor models and OTA update image; hibernation mode draws only 1.7 µA between 10-second measurement cycles. |
| Human-Machine Interface | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Touch-enabled operator panel with graphical LCD, pushbuttons, LEDs, and audio feedback in factory equipment. IC Role / Device Role / Timing Role: Primary UI controller managing display refresh, capacitive touch decoding, and real-time status indication. Use Value: Multiple UART/SPI/I²C peripherals interface to display driver, touch controller, and audio codec; USB OTG enables field firmware updates via flash drive. |
Use Scenario: Modular digital input/output expansion for DIN-rail mounted PLCs, supporting 16-channel isolated DI and DO functions. IC Role / Device Role / Timing Role: Local I/O processor handling debounce, pulse counting, and watchdog supervision for safety-critical field signals. Use Value: GPIOs support programmable interrupt-on-change with 20 ns resolution; built-in CRC engine validates configuration data stored in EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PGE | 144-pin LQFP, 256 KB Flash, 32 KB SRAM, same core and peripherals but adds Ethernet MAC and additional UART/SPI channels. | Better suited for networked gateway applications requiring wired Ethernet connectivity and higher I/O count. | Select TM4C123GH6PGE when Ethernet interface or >100 GPIOs are required; TM4C1231D5PZIR remains optimal for cost-sensitive, compact industrial controllers. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, 192 KB SRAM, no integrated hibernation module, different USB stack implementation. | Lacks dedicated hibernate power domain and battery-backed RAM; requires external RTC and backup power circuitry for low-power wake-up. | Choose STM32F407VGT6 if higher clock speed and larger memory are critical; TM4C1231D5PZIR offers superior out-of-box ultra-low-power operation for battery-powered edge nodes. |
Compared with TM4C123GH6PGE and STM32F407VGT6, the TM4C1231D5PZIR delivers best-in-class hibernate current (1.7 µA), integrated USB OTG PHY, and TivaWare's mature industrial middleware - making it ideal for compact, battery-aware, and USB-configurable embedded systems where pin count and thermal footprint are constrained.
Availability
TM4C1231D5PZIR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor gateways, human-machine interfaces, and programmable logic controller I/O modules requiring stable component supply across extended product lifecycles.
Supply support for TM4C1231D5PZIR 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience delivering reliable, high-performance silicon for industrial, automotive, and consumer markets.
The TM4C1231D5PZIR belongs to TI's Tiva C Series microcontroller family, designed specifically for cost-effective, real-time control applications in harsh industrial environments - emphasizing low-power operation, robust peripheral integration, and software ecosystem maturity.
FAQ
What is the maximum operating frequency of the TM4C1231D5PZIR?
The TM4C1231D5PZIR operates at a maximum system clock frequency of 80 MHz, achieved via its integrated PLL with support for multiple crystal or external clock sources. This frequency is fully supported across the entire industrial temperature range (-40°C to +105°C), and the TM4C1231D5PZIR maintains timing compliance under worst-case voltage and temperature conditions per TI SPMS335E datasheet Section 5.2.5.
Does the TM4C1231D5PZIR include an integrated USB physical layer?
Yes, the TM4C1231D5PZIR integrates a full-speed USB 2.0 OTG physical layer, including differential transceivers, pull-up resistors, and endpoint control logic. No external USB PHY is required, and the TM4C1231D5PZIR supports both device and host roles using the TivaWare USB stack - enabling direct connection to PCs, flash drives, or HID peripherals.
What low-power modes does the TM4C1231D5PZIR support, and what is its lowest current draw?
The TM4C1231D5PZIR supports Sleep, Deep-Sleep, and Hibernate modes. Its lowest active power state is Hibernate, drawing just 1.7 µA typical (with RTC running and 2 KB battery-backed RAM retained) at 3.3 V and 25°C. This value is measured and specified in TI SPMS335E datasheet Section 7.3.7, and the TM4C1231D5PZIR retains full register context and wake-up capability via multiple sources.
How many ADC channels and sample rates does the TM4C1231D5PZIR support?
The TM4C1231D5PZIR features a 12-bit successive-approximation ADC with up to 12 external input channels and four independent sample sequencers. It achieves a maximum sample rate of 1 MSPS (1 million samples per second) in single-channel mode, with hardware averaging and programmable trigger sources - all documented for the TM4C1231D5PZIR in Section 13 of the SPMS335E datasheet.
Is the TM4C1231D5PZIR pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C1231D5PZIR is not pin-compatible with other Tiva C Series devices due to its unique 100-pin LQFP package and specific peripheral mapping. For example, the TM4C123GH6PGE uses a 144-pin LQFP with different pin assignments and added Ethernet signals. Migration requires PCB redesign; the TM4C1231D5PZIR pinout is fixed per TI's official package drawing SLAS752B.
TM4C1231D5PZIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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
- 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:
TM4C1231D5PZIR FAQ
1.How can I place an order for TM4C1231D5PZIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231D5PZIR 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 TM4C1231D5PZIR reliable?
The price and inventory of TM4C1231D5PZIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231D5PZIR is usually 5 days.
3.What payment methods are accepted for TM4C1231D5PZIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231D5PZIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231D5PZIR?
TM4C1231D5PZIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231D5PZIR 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 TM4C1231D5PZIR?
For technical support, including TM4C1231D5PZIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231D5PZIR requirements.
6.How does Aetrix verify that TM4C1231D5PZIR is sourced from the original manufacturer or authorized distributors?
All TM4C1231D5PZIR 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 TM4C1231D5PZIR meets industry standards.
7.What is the process for return or replacement of TM4C1231D5PZIR?
All TM4C1231D5PZIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231D5PZIR, 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 TM4C1231D5PZIR part is unused and in its original packaging.
Return procedure for TM4C1231D5PZIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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