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Texas Instruments TM4C123BH6ZRBIR
- Part No.:
- TM4C123BH6ZRBIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 157-VFBGA
- Datasheet:
-
TM4C123BH6ZRBIR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 157BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,376
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Product details
Overview
TM4C123BH6ZRBIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, integrated USB 2.0 OTG, 12-bit ADC (1MSPS), and 8 PWM outputs. It operates at up to 80 MHz and supports hibernation mode with RTC and battery-backed memory for low-power embedded control in industrial automation and motor drive systems.
For engineers reviewing the TM4C123BH6ZRBIR datasheet, TM4C123BH6ZRBIR pinout, TM4C123BH6ZRBIR application, or TM4C123BH6ZRBIR equivalent, key selection criteria include its USB OTG capability, dual 16-bit general-purpose timers with PWM, integrated hibernation module, and support for TivaWare™ software stack in real-time control firmware development.
Technical Context
The TM4C123BH6ZRBIR integrates a 32-bit ARM Cortex-M4F core with hardware floating-point unit (FPU), enabling deterministic real-time math operations for motion control algorithms. Its system-level integration includes μDMA controller (32-channel), NVIC with 80 interrupt lines, and ROM-based bootloader supporting In-Application Programming (IAP).
Peripherals are tightly coupled via AHB/APB buses: the 12-bit ADC supports four independent sample sequencers with hardware averaging; the USB controller implements full-speed OTG with internal PHY and session detection; and the hibernation module provides VBAT-supplied RTC, 2 KB battery-backed RAM, and wake-on-RTC/external-pin events - all configurable without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU - enables real-time floating-point computation for sensor fusion or PID loop execution |
| Flash / SRAM | 256 KB flash + 32 KB SRAM - sufficient for standalone firmware with USB stack, RTOS, and control logic |
| ADC | 12-bit, 1 MSPS, 12-channel with 4 sequencers - supports simultaneous sampling of motor phase currents and temperature sensors |
| USB Interface | USB 2.0 Full-Speed OTG with integrated PHY - eliminates need for external transceiver in host/peripheral applications |
| Hibernation Mode | VBAT-powered RTC + 2 KB battery-backed RAM - retains state during main power loss with sub-µA quiescent current |
| PWM Outputs | 8 PWM outputs across 4 modules - drives 3-phase inverter gates with complementary pairs and dead-time insertion |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly and thermal management for industrial ambient |
Pinout & Package
TM4C123BH6ZRBIR uses a 100-pin LQFP package (RoHS-compliant, JEDEC MO-152AC). Pinout is defined in TI datasheet SPMS370E Section 1.4 and includes dedicated JTAG/SWD debug pins (TCK/TMS/TDI/TDO/nTRST/SWCLK/SWDIO), USB D+/D−, VDDA/VSSA analog supply pair, and GPIOs with peripheral multiplexing (e.g., PF0–PF4 for NMI/USER SW/LEDs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Main power / ground | Core I/O supply (3.3 V); requires local 10 µF + 0.1 µF decoupling per power domain |
| VDDA / VSSA | Analog power / ground | Isolated analog supply for ADC/PGA; must be filtered separately from digital rails |
| USB0DP / USB0DM | USB differential pair | Full-speed USB 2.0 interface; internal pull-up resistor enabled via software for device enumeration |
| PD0 / PD1 | UART0 RX/TX | Default UART boot interface; supports firmware update over serial without external level shifter |
| PF0–PF4 | GPIO / NMI / SW2 / SW1 / LED | Preconfigured user interface pins; PF0 doubles as NMI input for critical fault handling |
| TCK / TMS / TDI / TDO | JTAG debug interface | Standard 4-wire JTAG; also supports SWD (SWCLK/SWDIO) on same pins for compact debug header |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware IEEE 754 single-precision FPU enables cycle-accurate trigonometric and filter computations without software emulation overhead |
| Hibernation Module | Integrated RTC, battery-backed RAM, and wake-on-RTC/external-pin reduces BOM count and enables fail-safe state retention during brownout |
| μDMA Controller | 32-channel memory-peripheral DMA offloads CPU during ADC sampling, UART transfers, and PWM updates - sustaining 80 MHz core throughput |
| Peripheral Multiplexing | Each GPIO supports up to 8 alternate functions (e.g., I2C0SCL/I2C0SDA/SSI0Clk/SSI0Fss/UART0Tx/UART0Rx/SSI1Clk/SSI1Fss) - maximizes peripheral density without pin bloat |
| ROM Bootloader | Factory-programmed ROM bootloader supports UART, USB, and I2C firmware updates - eliminates need for external programmer in field deployment |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers using space-vector PWM and current sensing. IC Role / Device Role / Timing Role: Real-time MCU executing FOC algorithm, generating 6-channel complementary PWM with dead-time, and sampling dual-shunt ADC inputs. Use Value: Integrated 12-bit ADC with hardware averaging and 80 MHz M4F core deliver <1 µs loop latency - meeting IEC 60034-30 efficiency class IE4 timing constraints. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting data over USB CDC. IC Role / Device Role / Timing Role: System controller managing sensor polling, data logging to internal flash, and USB virtual COM port communication. Use Value: Hibernation mode with RTC alarm wakes MCU every 10 s for measurement, achieving 3+ year battery life on CR2032 with 1.1 µA sleep current. |
| Programmable Logic Controller (PLC) I/O Module | USB Human Interface Device (HID) |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16 isolated inputs and 8 relay outputs controlled via Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Main processor running FreeRTOS, handling Modbus protocol stack, GPIO state scanning, and watchdog supervision. Use Value: Dual 16-bit GPTM modules provide precise 1 ms timer tick and 100 µs pulse-width measurement for input debouncing - eliminating external timing ICs. | Use Scenario: Industrial keypad with backlight control, tactile feedback, and secure firmware update via USB HID class. IC Role / Device Role / Timing Role: USB HID device controller with custom report descriptors, button scan matrix, and PWM-driven LED dimming. Use Value: On-chip USB PHY and ROM HID stack reduce firmware size by 8 KB and eliminate external transceiver - lowering total cost by $0.32/unit at volume. |
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 USB transceiver | Higher performance but larger footprint (100-pin LQFP vs. 100-pin LQFP); lacks hibernation module with battery-backed RAM | Select when >80 MHz clock speed or >256 KB flash is required; verify USB layout compatibility with external PHY |
| MSP432P401RIPZ | ARM Cortex-M4F @ 48 MHz, 2 MB flash, integrated ADC (14-bit, 1 MSPS), no USB OTG - only USB device mode supported | Lower clock speed but superior ADC resolution; optimized for ultra-low-power sensing, not real-time control | Select for battery-constrained sensor hubs where 14-bit precision outweighs USB host capability and PWM channel count |
Compared with STM32F407VGT6 and MSP432P401RIPZ, the TM4C123BH6ZRBIR uniquely balances USB OTG with integrated PHY, hibernation-ready RTC, and motor-control-optimized PWM - making it optimal for cost-sensitive, USB-connected industrial controllers requiring fail-safe state retention.
Availability
TM4C123BH6ZRBIR is available at Aetrix Electronics and suitable for industrial motor drives, smart sensor nodes, PLC I/O modules, and USB HID devices requiring stable component supply and long-term manufacturability.
Supply support for TM4C123BH6ZRBIR 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 markets since 1930.
The Tiva™ C Series - including the TM4C123BH6ZRBIR - was designed specifically for real-time industrial control applications requiring integrated connectivity (USB, UART, I²C), analog signal acquisition, and deterministic execution under variable load conditions.
FAQ
What is the maximum operating frequency of the TM4C123BH6ZRBIR?
The TM4C123BH6ZRBIR operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL driven by either the precision internal oscillator (PIOSC) or an external crystal. This frequency is fully supported across the entire industrial temperature range (–40°C to +105°C) and enables deterministic execution of real-time control loops within strict timing budgets. The TM4C123BH6ZRBIR's Cortex-M4F core maintains this speed while executing floating-point instructions without throttling.
Does the TM4C123BH6ZRBIR support USB device and host modes?
Yes, the TM4C123BH6ZRBIR supports USB On-The-Go (OTG) functionality through its integrated USB 2.0 Full-Speed controller with on-die PHY. It can operate as a USB device (e.g., CDC, HID, MSC classes) or as a USB host (e.g., for HID keyboards or mass storage) without external transceivers. The TM4C123BH6ZRBIR's USB module includes session detection, VBUS sensing, and integrated pull-up resistors - all configurable in firmware via the USB library in TivaWare™.
What debug interfaces does the TM4C123BH6ZRBIR provide?
The TM4C123BH6ZRBIR supports both 4-wire JTAG and 2-wire Serial Wire Debug (SWD) using shared pins (TCK/TMS/TDI/TDO mapped to SWCLK/SWDIO). It includes ARM CoreSight debug infrastructure with hardware breakpoints, watchpoints, and real-time trace via TPIU. The TM4C123BH6ZRBIR is fully compatible with TI's XDS110 and third-party debuggers like Segger J-Link, enabling non-intrusive code inspection and live register monitoring during motor control execution.
How much battery-backed memory does the TM4C123BH6ZRBIR offer in hibernation mode?
The TM4C123BH6ZRBIR provides 2 KB of battery-backed SRAM accessible during hibernation mode, powered by an external VBAT supply. This memory retains critical system state - such as encoder position, fault history, or calibration coefficients - while the main power is removed. The TM4C123BH6ZRBIR also integrates a 32-bit RTC with calendar function and alarm interrupt, allowing wake-up events at precise intervals without external components.
Is there a factory-programmed bootloader in the TM4C123BH6ZRBIR?
Yes, the TM4C123BH6ZRBIR includes a ROM-resident bootloader that supports firmware updates over UART, USB, and I²C interfaces. This bootloader is immutable and cannot be erased, ensuring reliable recovery even after corrupted application code. The TM4C123BH6ZRBIR's bootloader enables field upgrades without requiring JTAG hardware, and it validates firmware images using checksum before execution - enhancing security and robustness in deployed systems.
TM4C123BH6ZRBIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 157-VFBGA
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 120
- 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:
TM4C123BH6ZRBIR FAQ
1.How can I place an order for TM4C123BH6ZRBIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123BH6ZRBIR 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 TM4C123BH6ZRBIR reliable?
The price and inventory of TM4C123BH6ZRBIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123BH6ZRBIR is usually 5 days.
3.What payment methods are accepted for TM4C123BH6ZRBIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123BH6ZRBIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123BH6ZRBIR?
TM4C123BH6ZRBIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123BH6ZRBIR 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 TM4C123BH6ZRBIR?
For technical support, including TM4C123BH6ZRBIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123BH6ZRBIR requirements.
6.How does Aetrix verify that TM4C123BH6ZRBIR is sourced from the original manufacturer or authorized distributors?
All TM4C123BH6ZRBIR 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 TM4C123BH6ZRBIR meets industry standards.
7.What is the process for return or replacement of TM4C123BH6ZRBIR?
All TM4C123BH6ZRBIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123BH6ZRBIR, 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 TM4C123BH6ZRBIR part is unused and in its original packaging.
Return procedure for TM4C123BH6ZRBIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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