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Texas Instruments TM4C123BE6PZI
- Part No.:
- TM4C123BE6PZI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C123BE6PZI.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:876
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Product details
Overview
TM4C123BE6PZI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 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 operates at up to 80 MHz and supports -40°C to +85°C industrial temperature range. It serves as a main system controller in motor control, industrial sensing, and USB-connected embedded devices.
For engineers reviewing the TM4C123BE6PZI datasheet, TM4C123BE6PZI pinout, TM4C123BE6PZI application, or TM4C123BE6PZI equivalent, this page delivers verified electrical specs, package mapping, functional role in real-time control systems, and validated alternative MCUs for migration or second-sourcing.
Technical Context
The TM4C123BE6PZI integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and deterministic interrupt latency down to 12 clock cycles. It includes a 32-channel μDMA controller for offloading peripheral-to-memory transfers without CPU intervention.
System-level integration includes a programmable phase-locked loop (PLL) for clock generation, hibernation module with RTC and battery-backed memory, and configurable GPIOs with slew-rate control and 5-V-tolerant inputs on selected pins. All peripherals are accessible via APB bus with AHB bridge support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables real-time signal processing with hardware FPU for efficient math-intensive tasks like motor vector control. |
| Flash Memory | 256 KB - sufficient for complex firmware with bootloader, USB stack, and application logic in single-chip deployment. |
| SRAM | 32 KB - supports dynamic data buffers, stack/heap allocation, and real-time task scheduling in FreeRTOS or TI-RTOS. |
| ADC | 12-bit, 1 MSPS, 12-channel - provides high-resolution analog sensing for current/voltage monitoring in power electronics. |
| USB Interface | USB 2.0 OTG - allows device/host dual-role operation for firmware updates, HID communication, or CDC virtual COM port. |
| PWM Outputs | 8 × 16-bit PWM generators with dead-band control - directly drives 3-phase inverter gates in BLDC motor control applications. |
| Operating Temp | -40°C to +85°C - qualified for industrial environments including factory automation and outdoor metering equipment. |
Pinout & Package
LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pinout validated per TI SPMS366E datasheet Rev E (June 2014).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital core (VDDC), analog (VDDA), and I/O (VDD) enable noise isolation in mixed-signal operation. |
| GND, GNDA, GNDC | Ground returns | Separate analog/digital/thermal ground connections reduce coupling and improve ADC accuracy. |
| USB0VBUS, USB0ID, USB0DP, USB0DM | USB 2.0 OTG interface | Full-speed USB transceiver with internal pull-ups; ID pin enables host/device role detection per USB OTG spec. |
| SSI0CLK, SSI0FSS, SSI0RX, SSI0TX | Synchronous Serial Interface (SPI) | Configurable master/slave SPI port supporting daisy-chain sensor networks or flash memory interfacing. |
| U0RX, U0TX, U1RX, U1TX | UART channels | Two independent UARTs with FIFOs - one for debug console, one for fieldbus communication (e.g., Modbus RTU). |
| PH0–PH7, PK0–PK7 | GPIO with alternate functions | Multi-function pins supporting PWM, timer capture, I²C, and ADC input - mapped to physical peripherals via GPIO AFSEL register. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Retains RTC, battery-backed RAM, and wake-on-external-interrupt capability while drawing < 1.5 µA - extends battery life in portable sensors. |
| μDMA Controller | 32-channel, scatter-gather capable - eliminates CPU overhead during ADC sampling bursts or UART streaming, improving real-time determinism. |
| Programmable Clock System | Multiple PLL/divider paths with crystal, internal oscillator, or external clock input - enables precise timing for USB, PWM, and ADC sampling synchronization. |
| Peripheral Integration | On-chip ROM bootloader, 2× I²C, 4× UART, 2× SSI, 2× CAN, 1× QEI - reduces BOM count and PCB area in motion-control designs. |
| Debug Interface | SWD/JTAG with 4-pin SWD mode - supports full-speed debugging and flash programming using low-pin-count connectors on production boards. |
Applications
| Industrial Motor Control | USB-Enabled Data Logger |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating PWM with dead-time insertion, and sampling current feedback via ADC. Use Value: Integrated PWM modules with complementary outputs and ADC trigger synchronization eliminate external timing ICs and reduce jitter in gate drive signals. |
Use Scenario: Field-deployed environmental monitor collecting temperature, humidity, and pressure data, then uploading via USB mass storage or CDC ACM. IC Role / Device Role / Timing Role: Host MCU managing sensor I²C reads, timestamping with RTC, buffering data in SRAM, and emulating USB storage device. Use Value: On-chip USB 2.0 OTG and 256 KB Flash allow full USB stack implementation without external memory, enabling plug-and-play data retrieval. |
| Smart Energy Metering | Factory Automation I/O Hub |
Use Scenario: Residential electricity meter with tamper detection, energy accumulation, and optical/IR communication interface. IC Role / Device Role / Timing Role: Primary metering controller running metrology firmware, reading isolated ADC inputs, and driving LCD via parallel interface. Use Value: Hibernation mode with battery-backed RTC maintains timekeeping during mains outage; 12-bit ADC supports Class 0.5 accuracy with oversampling. |
Use Scenario: DIN-rail mounted remote I/O module converting analog sensor inputs and discrete signals to Modbus TCP over Ethernet (via external PHY). IC Role / Device Role / Timing Role: Protocol gateway MCU handling Modbus RTU parsing, GPIO state scanning, and UART-to-Ethernet bridging logic. Use Value: Multiple UARTs and configurable GPIOs support simultaneous RS-485 slave communication and local diagnostics port without multiplexing conflicts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PGE | Same core and peripheral set, but 144-pin LQFP, 256 KB Flash, 32 KB SRAM, and extended temp (-40°C to +105°C). | Required for higher I/O count or extended temperature operation in automotive under-hood or solar inverter control. | Select when >100 GPIOs or >85°C ambient operation is needed; pinout and firmware are not compatible with TM4C123BE6PZI. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, 192 KB SRAM, no native USB OTG PHY (requires external transceiver), different peripheral register map. | Preferred where higher CPU throughput, larger code space, or Ethernet MAC is required; lacks integrated USB PHY and hibernation module. | Choose for compute-heavy applications like audio processing or protocol stacks requiring >256 KB code; expect full firmware porting effort. |
Compared with TM4C123BE6PZI, TM4C123GH6PGE offers more I/O and wider temperature range but requires PCB redesign, while STM32F407VGT6 delivers higher performance and memory but adds external components and software migration cost.
Availability
TM4C123BE6PZI is available at Aetrix Electronics and suitable for industrial motor control, USB-connected instrumentation, and smart metering applications requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.
Supply support for TM4C123BE6PZI 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 since 1930.
The Tiva C Series - including TM4C123BE6PZI - was designed for cost-sensitive, real-time embedded applications demanding integrated connectivity, analog sensing, and deterministic control in industrial and consumer systems.
FAQ
What is the maximum operating frequency of the TM4C123BE6PZI?
The TM4C123BE6PZI operates at a maximum system clock frequency of 80 MHz, achieved via its on-chip PLL configured from an external 1–25 MHz crystal or oscillator. This frequency is fully supported across all voltage and temperature ranges specified in the datasheet, enabling deterministic real-time execution for time-critical control loops.
Does the TM4C123BE6PZI include a hardware USB PHY?
Yes, the TM4C123BE6PZI integrates a full-speed USB 2.0 OTG physical layer (PHY) compliant with USB specification revision 2.0. It supports both device and host roles without external transceivers, and includes dedicated USB0VBUS, USB0ID, USB0DP, and USB0DM pins routed to the LQFP-100 package.
How much SRAM does the TM4C123BE6PZI provide, and is it contiguous?
The TM4C123BE6PZI provides 32 KB of on-chip SRAM, organized as a single contiguous block starting at address 0x2000.0000. This layout simplifies memory management in RTOS environments and supports large data buffers for communication stacks or sensor fusion algorithms without bank switching.
Can the TM4C123BE6PZI operate in low-power hibernation mode with RTC active?
Yes, the TM4C123BE6PZI supports hibernation mode with the real-time clock (RTC) running from an external 32.768 kHz crystal or internal low-frequency oscillator. In this state, current consumption drops below 1.5 µA while retaining RTC time, battery-backed memory contents, and wake-up capability via GPIO or RTC alarm.
What debug interfaces are supported by the TM4C123BE6PZI?
The TM4C123BE6PZI supports both JTAG and Serial Wire Debug (SWD) interfaces. SWD mode uses only two pins (SWDIO and SWCLK) and is enabled by default after reset, making it ideal for production programming and debugging with minimal PCB footprint and reduced signal integrity concerns.
TM4C123BE6PZI 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, QEI, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, Motion PWM, 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:
TM4C123BE6PZI FAQ
1.How can I place an order for TM4C123BE6PZI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123BE6PZI 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 TM4C123BE6PZI reliable?
The price and inventory of TM4C123BE6PZI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123BE6PZI is usually 5 days.
3.What payment methods are accepted for TM4C123BE6PZI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123BE6PZI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123BE6PZI?
TM4C123BE6PZI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123BE6PZI 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 TM4C123BE6PZI?
For technical support, including TM4C123BE6PZI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123BE6PZI requirements.
6.How does Aetrix verify that TM4C123BE6PZI is sourced from the original manufacturer or authorized distributors?
All TM4C123BE6PZI 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 TM4C123BE6PZI meets industry standards.
7.What is the process for return or replacement of TM4C123BE6PZI?
All TM4C123BE6PZI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123BE6PZI, 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 TM4C123BE6PZI part is unused and in its original packaging.
Return procedure for TM4C123BE6PZI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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