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Texas Instruments TM4C123BH6PGEI
- Part No.:
- TM4C123BH6PGEI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
TM4C123BH6PGEI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,520
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Product details
Overview
TM4C123BH6PGEI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated USB 2.0 OTG controller, ADC (12-bit, 1MSPS), PWM, and multiple serial interfaces (UART, SPI, I²C). It operates at up to 80 MHz and supports industrial temperature range (–40°C to +105°C) in a 144-pin LQFP package. It is used in motor control, industrial automation, and USB-connected embedded systems.
For engineers reviewing the TM4C123BH6PGEI datasheet, TM4C123BH6PGEI pinout, TM4C123BH6PGEI application, or TM4C123BH6PGEI equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, deterministic real-time performance via NVIC and SysTick, and support for TivaWare™ software stack and TI's Code Composer Studio™ IDE.
Technical Context
The TM4C123BH6PGEI integrates a 32-bit ARM Cortex-M4F core with hardware floating-point unit (FPU), enabling efficient signal processing and control algorithms. It features a 512 KB ROM bootloader, configurable clock tree with PLL and internal oscillators, and a hibernation module supporting RTC wake-up and VBAT retention.
Its peripheral set includes eight UARTs, four SPI modules, four I²C controllers, two CAN 2.0B controllers, two 12-bit ADCs (each with eight sample sequencers), and a 16-channel μDMA controller - all accessible via APB/AHB buses with configurable priority and arbitration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU, 80 MHz max operation - enables real-time math-intensive tasks without external coprocessor. |
| Memory | 256 KB Flash (programmable in 1 KB sectors), 32 KB SRAM, 512 KB ROM bootloader - supports firmware updates and secure boot. |
| ADC | Two 12-bit, 1 MSPS ADCs with eight sequencers and hardware averaging - suitable for multi-sensor acquisition with low jitter. |
| USB | USB 2.0 OTG with integrated PHY and 1 KB endpoint RAM - eliminates need for external transceiver in host/peripheral designs. |
| Temperature Range | –40°C to +105°C industrial grade - qualified for use in enclosed industrial enclosures and motor drive environments. |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch) - compatible with standard reflow processes and accessible for manual prototyping. |
| Power Management | Hibernation mode with RTC, battery-backed RAM (2 KB), and VBAT supply - enables sub-µA sleep current with fast wake-up. |
Pinout & Package
TM4C123BH6PGEI is housed in a 144-pin LQFP package with exposed thermal pad (EP). Pin functions are defined across five GPIO ports (A–E), plus dedicated analog, USB, JTAG/SWD, and system control pins. The package supports full JTAG and SWD debug access, dual VDD/VSS pairs per quadrant, and dedicated VDDA/VSSA for analog section isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power and ground | Multiple distributed pairs ensure stable 3.3 V supply and low-noise grounding for digital logic. |
| VDDA, VSSA | Analog power and ground | Isolated analog domain supply pins reduce coupling noise into ADC and comparator circuits. |
| USB0VBUS, USB0ID, USB0DP, USB0DM | USB 2.0 OTG interface | Integrated PHY eliminates external transceiver; ID pin enables OTG role negotiation. |
| PD0–PD7, PE0–PE5 | GPIO / Alternate function | Support UART, I²C, PWM, and QEI - configurable pull-up/down and slew rate for EMI control. |
| JTAG/SWD | Debug interface | TCK, TMS, TDI, TDO, nTRST, SWDIO, SWCLK - enable full debug visibility and flash programming. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Retains 2 KB RAM and RTC time on VBAT while drawing ≤1.7 µA - enables battery-powered long-term monitoring. |
| μDMA Controller | 16-channel, scatter-gather capable - offloads CPU during high-bandwidth transfers (e.g., ADC-to-memory, UART-to-buffer). |
| Dual CAN 2.0B Controllers | Independent message objects (32 per controller), programmable bit timing - supports automotive and industrial fieldbus communication. |
| Programmable Clock System | Internal precision oscillator (±1%), PLL with 4–400 MHz output, and multiple clock sources - simplifies BOM by removing external crystal in many applications. |
| ROM Bootloader | 512 KB factory-programmed ROM with UART/USB/I²C boot modes - enables field firmware recovery without debugger. |
Applications
| Industrial Motor Control | USB Human Interface Device (HID) |
|---|---|
|
Use Scenario: Closed-loop BLDC motor control with position feedback, current sensing, and real-time commutation. IC Role / Device Role / Timing Role: Real-time execution engine managing PWM generation, ADC sampling, and PID loop timing at ≤10 µs jitter. Use Value: Integrated 12-bit ADC with hardware averaging and 16-channel μDMA reduces sensor data latency and CPU load. |
Use Scenario: Programmable keyboard, joystick, or diagnostic tool connecting directly to PC via USB without external hub. IC Role / Device Role / Timing Role: USB device controller with built-in PHY and HID-class descriptor support - handles enumeration and report transfer autonomously. Use Value: Eliminates external USB transceiver and reduces PCB layer count while maintaining full HID compliance. |
| Smart Sensor Node | Factory Automation Gateway |
|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and motion data over extended periods. IC Role / Device Role / Timing Role: Low-power system manager using hibernation mode with RTC wake-up and VBAT-retained memory. Use Value: Sub-µA hibernate current and integrated RTC enable years of operation on coin-cell battery. |
Use Scenario: Protocol translator bridging Modbus RTU (RS-485) and EtherNet/IP networks in PLC cabinets. IC Role / Device Role / Timing Role: Dual-CAN and multiple UARTs with hardware flow control serve as deterministic protocol interface engine. Use Value: Independent CAN controllers with 32-message object buffers prevent frame loss under burst traffic conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB Flash, no integrated USB PHY - requires external transceiver. | Higher clock speed and memory but lacks hibernation module and battery-backed RAM. | Select when higher compute throughput is critical and USB is host-only or uses external PHY. |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F @ 48 MHz, 256 KB Flash, 32 KB SRAM, no CAN - includes TrustZone security extensions. | Lower performance, no CAN or USB OTG; optimized for secure IoT edge nodes with TLS acceleration. | Select when functional safety certification (IEC 61508 SIL2) or cryptographic acceleration is required over industrial connectivity. |
Compared with STM32F407VGT6 and RA4M1, the TM4C123BH6PGEI provides unique integration of USB OTG with PHY, hibernation with RTC and VBAT RAM, and dual CAN - making it optimal for cost-sensitive, USB-connected industrial controllers where low-power sleep and fieldbus interoperability are essential.
Availability
TM4C123BH6PGEI is available at Aetrix Electronics and suitable for industrial motor drives, USB peripheral devices, and smart sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TM4C123BH6PGEI 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 communications markets since 1930.
The TM4C123BH6PGEI belongs to TI's Tiva C Series - designed specifically for cost-effective, high-integration microcontroller applications demanding USB connectivity, real-time control, and robust industrial operating conditions.
FAQ
What is the maximum operating frequency of the TM4C123BH6PGEI?
The TM4C123BH6PGEI operates at a maximum system clock frequency of 80 MHz, achieved via its integrated PLL with input from internal or external oscillators. This frequency is fully supported across the entire industrial temperature range (–40°C to +105°C), and the TM4C123BH6PGEI maintains timing compliance per its datasheet specifications under all validated voltage and thermal conditions.
Does the TM4C123BH6PGEI include an integrated USB physical layer (PHY)?
Yes, the TM4C123BH6PGEI integrates a full-speed USB 2.0 OTG PHY with internal termination and VBUS detection circuitry. This eliminates the need for an external USB transceiver in most designs. The TM4C123BH6PGEI supports both device and host roles and includes 1 KB of dedicated endpoint RAM for descriptor and packet buffering.
What debug interfaces does the TM4C123BH6PGEI support?
The TM4C123BH6PGEI supports both 4-wire JTAG and 2-wire Serial Wire Debug (SWD) interfaces. These are accessible via dedicated pins (TCK, TMS, TDI, TDO, nTRST, SWDIO, SWCLK) and enable full boundary-scan, flash programming, and real-time debugging using tools like TI's XDS110 or third-party CMSIS-DAP adapters. The TM4C123BH6PGEI also supports SWO trace output for instruction and data tracing.
How much battery-backed memory does the TM4C123BH6PGEI provide in hibernation mode?
The TM4C123BH6PGEI provides 2 KB of battery-backed SRAM that remains powered and retains data during hibernation mode when supplied by VBAT. This memory is accessible only after waking from hibernation and is protected against corruption during power transitions. The TM4C123BH6PGEI also includes a 32-bit real-time counter and calendar functions within the hibernation module.
What analog peripherals are integrated into the TM4C123BH6PGEI?
The TM4C123BH6PGEI integrates two independent 12-bit analog-to-digital converters (ADCs), each supporting up to 1 MSPS sampling rate and eight configurable sample sequencers. It also includes an internal temperature sensor, digital comparators, and hardware sample averaging (up to 64x). No external ADC driver or reference buffer is required for basic sensor interfacing.
TM4C123BH6PGEI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-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:
- 105
- Program Memory Size:
- 256KB (256K 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 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123BH6PGEI FAQ
1.How can I place an order for TM4C123BH6PGEI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123BH6PGEI 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 TM4C123BH6PGEI reliable?
The price and inventory of TM4C123BH6PGEI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123BH6PGEI is usually 5 days.
3.What payment methods are accepted for TM4C123BH6PGEI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123BH6PGEI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123BH6PGEI?
TM4C123BH6PGEI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123BH6PGEI 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 TM4C123BH6PGEI?
For technical support, including TM4C123BH6PGEI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123BH6PGEI requirements.
6.How does Aetrix verify that TM4C123BH6PGEI is sourced from the original manufacturer or authorized distributors?
All TM4C123BH6PGEI 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 TM4C123BH6PGEI meets industry standards.
7.What is the process for return or replacement of TM4C123BH6PGEI?
All TM4C123BH6PGEI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123BH6PGEI, 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 TM4C123BH6PGEI part is unused and in its original packaging.
Return procedure for TM4C123BH6PGEI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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