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Texas Instruments TM4C1231D5PZI7
- Part No.:
- TM4C1231D5PZI7
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C1231D5PZI7.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
TM4C1231D5PZI7 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 system controller in industrial motor control, sensor hubs, and USB-connected embedded devices.
For engineers reviewing the TM4C1231D5PZI7 datasheet, TM4C1231D5PZI7 pinout, TM4C1231D5PZI7 application, or TM4C1231D5PZI7 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 100-pin LQFP package, USB device/host/OTG capability, hardware floating-point unit, and hibernation module with RTC and battery-backed memory.
Technical Context
The TM4C1231D5PZI7 integrates a 32-bit ARM Cortex-M4F core with hardware FPU and NVIC supporting up to 80 interrupts. Its system-level architecture includes a hibernation module with dedicated RTC, VBAT backup domain, and low-power sleep modes down to 1.7 µA (hibernate with RTC active).
Peripherals include a 12-bit 1 MSPS ADC with 16-channel analog input, four 32/64-bit general-purpose timers with PWM and capture capability, two CAN 2.0B controllers, and full-speed USB 2.0 OTG with integrated PHY - all accessible via configurable GPIOs with slew-rate and drive-strength control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware single-precision FPU and DSP instructions |
| Memory | 256 KB on-chip Flash (programmable in 1 KB sectors), 32 KB SRAM, 2 KB EEPROM |
| ADC | 12-bit, 1 MSPS SAR ADC with 16 external inputs, hardware averaging, and temperature sensor |
| USB | Full-speed USB 2.0 OTG with integrated PHY, device/host/OTG modes, and 1 KB endpoint RAM |
| Timers | Four 32/64-bit GPTMs (each configurable as two 16-bit or one 32-bit timer), plus watchdog and hibernation timers |
| Temperature Range | -40°C to +105°C industrial grade, qualified per AEC-Q100 not applicable (non-automotive) |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, lead-free |
Pinout & Package
TM4C1231D5PZI7 is housed in a 100-pin LQFP package with exposed thermal pad (EP), designed for surface-mount reflow assembly and thermal dissipation in industrial environments. Pin functions are fully defined in TI's SPMS335E datasheet Section 1.4 and Table 1-1 (Pin Assignments).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital (VDD), analog (VDDA), and core (VDDC) rails require independent 3.3 V ±5% regulation and local decoupling |
| GND, GNDA, GNDC | Ground returns | Analog (GNDA) and core (GNDC) grounds must be star-connected near the IC to minimize noise coupling |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role switching between host/device based on VBUS presence and ID pin state |
| PD0–PD7, PE0–PE5, etc. | Configurable GPIO | All 69 GPIO pins support peripheral multiplexing, digital input/output, interrupt generation, and slew-rate control |
| HIB, RTCCLK, VBAT | Hibernation subsystem | Supports battery-backed RTC operation and wake-up from hibernate using external or internal events |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision math enables real-time control algorithms (e.g., PID, motor FOC) without software emulation overhead |
| Hibernation Module | Ultra-low-power mode (1.7 µA typical) with RTC, battery-backed RAM (2 KB), and wake-on-RTC-match or external pin event |
| USB 2.0 OTG | Integrated PHY and endpoint RAM eliminate need for external transceiver; supports CDC, HID, and mass storage class implementations |
| Peripheral Integration | Includes two CAN 2.0B controllers, four UARTs, three SPIs, two I²Cs, and 16-channel ADC - reducing BOM count and PCB footprint |
| GPIO Flexibility | Each of 69 GPIOs supports up to 8 peripheral functions, programmable pull-up/down, open-drain, and 2-, 4-, 8-, or 12-mA drive strength |
Applications
| Industrial Motor Control | Sensor Data Aggregation Hub |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and pump drives requiring precise timing, PWM generation, and current sensing. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms via Cortex-M4F+FPU, generating 16-bit PWM with dead-time insertion, and sampling dual-shunt currents via ADC. Use Value: Integrated hibernation and RTC enable scheduled wake-up for periodic diagnostics without external supervisor ICs. | Use Scenario: Local edge node collecting temperature, humidity, and vibration data from multiple sensors and forwarding via USB or UART to gateway. IC Role / Device Role / Timing Role: Sensor interface hub managing time-synchronized sampling across 12+ analog/digital sensors using GPTM-triggered ADC sequences. Use Value: On-chip 2 KB EEPROM stores calibration coefficients and device identity; USB OTG allows field firmware updates without JTAG debugger. |
| USB Human Interface Device | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Industrial keyboard, barcode scanner, or custom HID peripheral connecting directly to PC or HMI via USB cable. IC Role / Device Role / Timing Role: USB device controller implementing HID class with report descriptors stored in Flash; GPIOs handle matrix scanning and LED feedback. Use Value: No external USB transceiver required - reduces component count and EMI risk while maintaining full-speed (12 Mbps) compliance. | Use Scenario: DIN-rail mounted I/O expansion module accepting digital inputs, sourcing/sinking outputs, and communicating over Modbus RTU via UART. IC Role / Device Role / Timing Role: Real-time I/O coordinator with deterministic GPIO response, configurable UART baud rates up to 921.6 kbps, and watchdog supervision. Use Value: Dual CAN interfaces allow redundant fieldbus communication; hibernation mode supports safe shutdown during power brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PGE | Same Cortex-M4F core, but 256 KB Flash/32 KB SRAM in 144-pin TQFP; adds Ethernet MAC and more GPIOs | Better suited for networked gateways or larger I/O systems; lacks hibernation module with VBAT support | Select when Ethernet connectivity or >69 GPIOs are required; avoid if ultra-low-power hibernate with RTC is critical |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash/192 KB RAM, no integrated USB PHY, requires external crystal | Higher performance and memory, but needs external USB transceiver and 8 MHz crystal; no hibernation module with battery backup | Choose for compute-intensive tasks (e.g., audio processing); accept added BOM cost and layout complexity for USB |
Compared with TM4C123GH6PGE and STM32F407VGT6, the TM4C1231D5PZI7 offers optimal balance of USB integration, hibernation capability, and industrial temperature range in a compact 100-pin LQFP - making it ideal for space-constrained, battery-aware, or USB-native edge nodes where external PHYs or Ethernet are unnecessary.
Availability
TM4C1231D5PZI7 is available at Aetrix Electronics and suitable for industrial motor control, sensor aggregation hubs, USB HID peripherals, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TM4C1231D5PZI7 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 applications since 1930.
The TM4C123x series was designed specifically for cost-sensitive, high-integration industrial control and connectivity applications - emphasizing USB OTG, low-power hibernation, and robust peripheral sets without requiring external support ICs.
FAQ
What is the maximum operating frequency of the TM4C1231D5PZI7?
The TM4C1231D5PZI7 operates at a maximum CPU frequency of 80 MHz, sustained across its full industrial temperature range (-40°C to +105°C). This speed is achieved using the on-chip PLL with external 8 MHz or internal 16 MHz oscillator input. The TM4C1231D5PZI7 does not support overclocking beyond 80 MHz, and all timing-critical peripherals (e.g., USB, ADC, PWM) are validated at this rate.
Does the TM4C1231D5PZI7 include an integrated USB physical layer (PHY)?
Yes, the TM4C1231D5PZI7 includes a full-speed (12 Mbps) USB 2.0 OTG physical layer integrated into the die - eliminating the need for an external transceiver. This PHY supports device, host, and OTG roles and is paired with 1 KB of dedicated endpoint RAM. The TM4C1231D5PZI7 requires only passive termination resistors and proper USB layout practices for reliable operation.
What low-power modes are supported by the TM4C1231D5PZI7?
The TM4C1231D5PZI7 supports five low-power modes: Sleep, Deep-Sleep, Hibernate, LP-Deep-Sleep, and Shutdown. The lowest active-current mode is Hibernate (1.7 µA typical with RTC running on VBAT), which retains 2 KB of battery-backed RAM and supports wake-up via RTC alarm or external GPIO. All modes are controlled via the system control block and require no external supervisor circuitry.
How much on-chip memory does the TM4C1231D5PZI7 provide?
The TM4C1231D5PZI7 provides 256 KB of on-chip Flash memory (organized in 1 KB sectors), 32 KB of SRAM, and 2 KB of EEPROM. Flash supports read-while-write and secure locking; EEPROM is endurance-rated for 100,000 write cycles and used for non-volatile parameter storage. The TM4C1231D5PZI7 does not include external memory interfaces.
Is the TM4C1231D5PZI7 pin-compatible with other TM4C123x devices?
No, the TM4C1231D5PZI7 is not pin-compatible with other TM4C123x variants due to its unique 100-pin LQFP configuration and specific peripheral mapping. For example, the TM4C123GH6PGE uses a 144-pin TQFP package with different pin assignments and additional peripherals (e.g., Ethernet MAC). Migration requires PCB redesign; always verify pinout against SPMS335E Section 1.4 before substitution.
TM4C1231D5PZI7 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:
TM4C1231D5PZI7 FAQ
1.How can I place an order for TM4C1231D5PZI7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231D5PZI7 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 TM4C1231D5PZI7 reliable?
The price and inventory of TM4C1231D5PZI7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231D5PZI7 is usually 5 days.
3.What payment methods are accepted for TM4C1231D5PZI7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231D5PZI7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231D5PZI7?
TM4C1231D5PZI7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231D5PZI7 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 TM4C1231D5PZI7?
For technical support, including TM4C1231D5PZI7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231D5PZI7 requirements.
6.How does Aetrix verify that TM4C1231D5PZI7 is sourced from the original manufacturer or authorized distributors?
All TM4C1231D5PZI7 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 TM4C1231D5PZI7 meets industry standards.
7.What is the process for return or replacement of TM4C1231D5PZI7?
All TM4C1231D5PZI7 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231D5PZI7, 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 TM4C1231D5PZI7 part is unused and in its original packaging.
Return procedure for TM4C1231D5PZI7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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