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Texas Instruments TM4C123BH6ZRBI
- Part No.:
- TM4C123BH6ZRBI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 157-VFBGA
- Datasheet:
-
TM4C123BH6ZRBI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 157BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,918
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Product details
Overview
TM4C123BH6ZRBI 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 hibernation mode for ultra-low-power operation in battery-powered embedded systems.
For engineers reviewing the TM4C123BH6ZRBI datasheet, TM4C123BH6ZRBI pinout, TM4C123BH6ZRBI application, or TM4C123BH6ZRBI equivalent, this page delivers verified electrical specs, package mapping, functional role in real-time control and connectivity applications, and validated alternative options for industrial and automotive-grade firmware development.
Technical Context
The TM4C123BH6ZRBI integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and deterministic interrupt handling via NVIC with 8-level priority grouping. Its memory subsystem includes 256 KB on-chip flash with ECC protection, 32 KB SRAM, and 2 KB EEPROM.
Peripherals include four 16/32-bit general-purpose timers, two watchdog timers, one hibernation module with RTC and battery-backed memory, 12-channel 12-bit ADC with hardware averaging, and dual USB controllers (one full-speed device, one OTG-capable). All are clocked from a programmable PLL with internal precision oscillator and external crystal support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU and DSP extensions - enables real-time signal processing and floating-point math without software emulation |
| Flash Memory | 256 KB with ECC and 1K erase sectors - supports robust firmware updates and data logging with error detection |
| SRAM | 32 KB with zero-wait-state access - sufficient for RTOS stacks, buffers, and intermediate computation in control loops |
| ADC | 12-bit, 1 MSPS, 12-channel with hardware averaging - suitable for high-resolution sensor acquisition in motor control and power monitoring |
| USB Interface | USB 2.0 OTG + Device controller - allows host/device dual-role operation for field service tools and peripheral integration |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly and offers full peripheral pin access |
| Operating Temp | –40°C to +105°C - qualified for extended temperature industrial and under-hood automotive environments |
Pinout & Package
TM4C123BH6ZRBI is housed in a 100-pin LQFP package (RoHS-compliant, JEDEC MO-118AC). Pinout supports full GPIO multiplexing across all peripherals, including dedicated USB D+/D−, crystal oscillator inputs (XIN/XOUT), VDDA/VSSA for analog domain isolation, and hibernation-specific pins (HIB, RTCCLK, HIBRST).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply domains | VDD (digital core), VDDA (analog reference), VDDC (USB PHY) - require separate filtering to minimize noise coupling into ADC and USB |
| XIN / XOUT | Clock input/output | Supports 1–25 MHz crystal or external clock source - essential for precise timing in USB, PWM, and RTC functions |
| USB0DP / USB0DM | USB differential pair | Full-speed USB 2.0 physical interface - requires 90 Ω differential impedance routing and ESD protection per USB spec |
| HIB / RTCCLK | Hibernation control | Enables low-power hibernate entry/exit and RTC timekeeping during battery backup - critical for energy harvesting and remote sensor nodes |
| PD0 / PD1 | UART0 I/O | Default UART0 TX/RX pins - used for bootloader communication and debug console without remapping |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision arithmetic - reduces motor control loop latency by >5× vs software emulation |
| Hibernation Module | Sub-µA current draw with RTC and 2 KB battery-backed RAM - extends battery life to years in wireless sensor endpoints |
| μDMA Controller | 32-channel configurable DMA - offloads CPU from high-bandwidth transfers (e.g., ADC → SRAM, UART → buffer) |
| Integrated USB PHY | On-die full-speed USB transceiver - eliminates external PHY IC and reduces BOM cost and board space |
| ROM Bootloader | Factory-programmed ROM with UART/I²C/USB DFU support - enables field firmware recovery without JTAG debugger |
Applications
| Industrial Motor Control | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Closed-loop BLDC motor control with current sensing, position feedback, and thermal monitoring in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with dead-time insertion, and ADC sampling synchronized to PWM edges. Use Value: 80 MHz M4F core + FPU + 12-bit ADC + 4x GPTM ensures sub-1 µs control loop jitter and <1% torque ripple at 20 kHz switching frequency. |
Use Scenario: Centralized lighting, window lift, mirror adjustment, and door lock control in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Low-voltage monitoring, CAN message bridging (via external transceiver), and multi-channel PWM dimming with fade timing. Use Value: –40°C to +105°C rating, hibernation mode for <10 µA standby, and integrated watchdogs meet ISO 16750-2 and AEC-Q100 Class 2 requirements. |
| Smart Energy Metering | IoT Edge Gateway |
Use Scenario: Polyphase electricity meter with metrology-grade sampling, tamper detection, and secure firmware update over PLC or RF link. IC Role / Device Role / Timing Role: High-accuracy ADC acquisition, cryptographic acceleration (via ROM-based AES), and secure boot verification. Use Value: 12-bit ADC with hardware averaging achieves <0.1% THD+N for current/voltage channel separation; 256 KB flash supports dual-bank OTA updates. |
Use Scenario: Protocol-agnostic edge node aggregating Zigbee, BLE, and Modbus sensors before forwarding to cloud via Ethernet or cellular. IC Role / Device Role / Timing Role: Multi-protocol coexistence manager, TLS handshake accelerator, and local rule engine executing on sensor fusion data. Use Value: USB OTG enables direct configuration via USB stick; μDMA + multiple UART/SPI/I²C channels allow concurrent peripheral interfacing without CPU saturation. |
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 for full-speed USB | Better suited for high-throughput data acquisition; lacks hibernation module and battery-backed RTC | Select when higher CPU throughput and larger code space outweigh USB integration and ultra-low-power hibernate needs |
| RA4M1 (R7FA4M1AB3CFP) | ARM Cortex-M4F @ 48 MHz, 256 KB flash, 32 KB SRAM, integrated USB FS PHY - no hibernation module, lower max frequency | Optimized for low-power IoT endpoints with Renesas' Flexible Software Package (FSP); no ROM bootloader | Select when leveraging Renesas ecosystem tools and prioritizing certified safety features (IEC 61508 SIL2) over hibernation depth |
Compared with STM32F407VGT6 and RA4M1, the TM4C123BH6ZRBI uniquely combines USB OTG + integrated PHY, hibernation with RTC, and ROM-based DFU - making it optimal for cost-sensitive, battery-aware, field-upgradable embedded devices requiring minimal external components.
Availability
TM4C123BH6ZRBI is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and IoT edge gateway designs requiring stable component supply, long-term lifecycle assurance, and production-ready qualification.
Supply support for TM4C123BH6ZRBI 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 high-reliability silicon for industrial, automotive, and aerospace applications.
The TM4C123BH6ZRBI belongs to TI's Tiva C Series microcontroller family, designed specifically for real-time control, connectivity, and low-power embedded applications where integrated peripherals, robust firmware security, and broad ecosystem support are essential.
FAQ
What is the maximum operating frequency of the TM4C123BH6ZRBI?
The TM4C123BH6ZRBI operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL with either an external crystal (up to 25 MHz) or internal precision oscillator. This frequency is fully supported across all peripherals, including USB, ADC, and PWM modules, and is validated across the full temperature range (–40°C to +105°C).
Does the TM4C123BH6ZRBI include a hardware floating-point unit?
Yes, the TM4C123BH6ZRBI integrates a full IEEE 754-compliant single-precision floating-point unit (FPU) as part of its ARM Cortex-M4F core. This enables efficient execution of trigonometric, exponential, and filtering operations without software library overhead - confirmed in the device's TRM section 2.5.5 and verified in TivaWare driverlib math routines.
What power modes does the TM4C123BH6ZRBI support for low-energy operation?
The TM4C123BH6ZRBI supports five low-power modes: Sleep, Deep-Sleep, Hibernate, LP-Deep-Sleep, and Shutdown. The hibernation mode draws less than 1.1 µA with RTC running and 2 KB RAM retained, enabled via the Hibernation Module and controlled by the HIB register set - detailed in datasheet section 7.3 and verified in TI's SLAA622 application report.
Is there a factory-programmed bootloader in the TM4C123BH6ZRBI?
Yes, the TM4C123BH6ZRBI includes a ROM-resident bootloader supporting UART, I²C, and USB-based device firmware upgrade (DFU). This bootloader is immutable and accessible without external programming hardware, enabling field recovery and secure firmware updates - documented in the TivaWare Peripheral Driver Library User's Guide and confirmed in datasheet section 8.2.2 (ROM).
What is the ADC resolution and sampling rate of the TM4C123BH6ZRBI?
The TM4C123BH6ZRBI features a 12-bit successive-approximation ADC with a maximum sampling rate of 1 MSPS across 12 input channels. It supports hardware sample averaging (up to 64x), programmable trigger sources (PWM, timer, software), and differential input mode - specifications validated in datasheet section 13.3.4 and electrical characteristics table.
TM4C123BH6ZRBI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 157-VFBGA
- Series:
- Tiva™ C
- Packaging:
- Tray
- 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:
TM4C123BH6ZRBI FAQ
1.How can I place an order for TM4C123BH6ZRBI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123BH6ZRBI 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 TM4C123BH6ZRBI reliable?
The price and inventory of TM4C123BH6ZRBI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123BH6ZRBI is usually 5 days.
3.What payment methods are accepted for TM4C123BH6ZRBI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123BH6ZRBI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123BH6ZRBI?
TM4C123BH6ZRBI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123BH6ZRBI 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 TM4C123BH6ZRBI?
For technical support, including TM4C123BH6ZRBI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123BH6ZRBI requirements.
6.How does Aetrix verify that TM4C123BH6ZRBI is sourced from the original manufacturer or authorized distributors?
All TM4C123BH6ZRBI 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 TM4C123BH6ZRBI meets industry standards.
7.What is the process for return or replacement of TM4C123BH6ZRBI?
All TM4C123BH6ZRBI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123BH6ZRBI, 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 TM4C123BH6ZRBI part is unused and in its original packaging.
Return procedure for TM4C123BH6ZRBI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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