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Texas Instruments TM4C123GH6ZRBT7R
- Part No.:
- TM4C123GH6ZRBT7R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 157-VFBGA
- Datasheet:
-
TM4C123GH6ZRBT7R.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 157BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
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Product details
Overview
TM4C123GH6ZRBT7R 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 TM4C123GH6ZRBT7R datasheet, TM4C123GH6ZRBT7R pinout, TM4C123GH6ZRBT7R application, or TM4C123GH6ZRBT7R equivalent, key selection criteria include its integrated USB PHY, 12-bit ADC performance, hibernation module with RTC and battery-backed memory, and support for TivaWare™ software stack in industrial control and IoT endpoint designs.
Technical Context
The TM4C123GH6ZRBT7R implements a full-featured ARM Cortex-M4F core with hardware floating-point unit (FPU), enabling deterministic real-time signal processing and motor control algorithms. Its system-level integration includes a micro-DMA controller supporting 32 channels, configurable GPIOs with slew-rate control, and a hibernation module with dedicated VBAT supply path and RTC.
Peripherals are tightly coupled via the AHB/APB bus matrix, with clock gating per peripheral block and dynamic power management across sleep modes (Sleep, Deep Sleep, Hibernate). The device supports JTAG and SWD debug interfaces, with trace capability via TPIU for cycle-accurate profiling in development environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU - enables real-time floating-point math for sensor fusion or motor control without external coprocessor. |
| Flash Memory | 256 KB - sufficient for bootloader + application firmware + OTA update partition in field-deployable devices. |
| SRAM | 32 KB - supports real-time data buffering, stack/heap for FreeRTOS, and dual-bank DMA descriptors. |
| ADC | 12-bit, 1 MSPS, 12-channel - meets resolution and sampling speed requirements for analog sensor monitoring in PLC I/O modules. |
| USB Interface | USB 2.0 OTG with integrated PHY - eliminates need for external transceiver; supports device/host/OTG roles in portable instrumentation. |
| Hibernate Mode | VBAT-powered RTC + 2 KB battery-backed RAM - maintains timekeeping and critical state during main power loss in smart metering applications. |
| Package | 100-pin LQFP (14 × 14 mm) - compatible with standard PCB assembly processes and provides full peripheral pin access including USB D+/D− and crystal inputs. |
Pinout & Package
TM4C123GH6ZRBT7R is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per TI SPMS378E datasheet Rev E (June 2014), with dedicated pins for USB differential signaling, crystal oscillator (XIN/XOUT), VDDA/VSSA analog supply, and multiple GPIO banks supporting alternate functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate domains for digital core (VDD), analog (VDDA), and USB PHY (VDDC) enable noise isolation and compliance with USB electrical specs. |
| XIN / XOUT | Clock input/output | Supports 1–25 MHz crystal or external clock source for precise system timing and USB frame synchronization. |
| USB0DP / USB0DM | USB differential pair | Integrated transceiver allows direct connection to USB connector; no external termination resistors required. |
| PF0 / PF4 | NMI / USER SW2 | Dedicated non-maskable interrupt and user button inputs - used for emergency fault handling or factory reset sequences. |
| PD0 / PD1 | U0RX / U0TX | Primary UART interface pins - configured as default console port for bootloader and debug output. |
| VBAT | Hibernate backup supply | Connects to coin cell or supercapacitor to retain RTC and 2 KB RAM during main power removal. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision arithmetic reduces CPU load by >70% vs. software emulation in PID loop calculations. |
| Hibernation Module | Retains RTC time, wake-up alarms, and 2 KB RAM on VBAT only - extends battery life to years in wireless sensor nodes. |
| Micro-DMA Controller | 32-channel, scatter-gather capable - offloads CPU during high-throughput ADC sampling or UART streaming without interrupt overhead. |
| GPIO Configuration Registers | Individual slew-rate, drive strength, and pull-up/down control per pin - simplifies EMI mitigation and mixed-signal board layout. |
| TivaWare™ Peripheral Driver Library | Production-ready C APIs with CMSIS-compliant abstraction - accelerates development of USB HID devices or motor control firmware. |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and commutation timing. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithm, generating PWM outputs, and sampling ADC channels synchronously with timer triggers. Use Value: Integrated 80-MHz M4F core with FPU and 12-bit ADC delivers <5 µs current-loop latency; hibernation mode preserves fault logs during power interruption. | Use Scenario: Residential electricity meter with tamper detection, tariff switching, and secure data logging. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, RTC, secure EEPROM, and optical/IR communication interface. Use Value: Battery-backed hibernation retains time and event logs for >10 years; USB OTG enables field calibration and firmware updates via portable reader. |
| Programmable Logic Controller (PLC) I/O Module | IoT Edge Sensor Gateway |
Use Scenario: DIN-rail mounted remote I/O node with analog/digital inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Central controller handling protocol stack, isolation interface timing, and deterministic scan-cycle execution. Use Value: Dual UARTs with automatic half-duplex direction control simplify RS-485 implementation; 32 KB SRAM buffers multiple Modbus transaction queues. | Use Scenario: Battery-powered environmental monitor aggregating temperature, humidity, and CO₂ via I²C sensors and transmitting via LoRaWAN. IC Role / Device Role / Timing Role: Low-power host managing sensor polling, data preprocessing, and radio interface coordination. Use Value: Hibernate mode draws <1.5 µA while maintaining RTC alarm; integrated USB enables direct configuration and firmware updates without external programmer. |
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 compute throughput but larger footprint (100-pin LQFP same size, but higher pin count variants common); lacks hibernation module with VBAT retention. | Select when needing >80 MHz clock headroom or larger code space; accept added BOM cost and layout complexity for USB. |
| RP2040 | Dual-core ARM Cortex-M0+ @ 133 MHz, 2 MB flash, no analog peripherals - no ADC, DAC, or analog comparators. | Lower power in active mode but no hibernation or battery-backed RAM; USB relies on software stack without hardware PHY. | Select for cost-sensitive consumer IoT where analog sensing is handled externally; avoid for industrial applications requiring certified analog accuracy or long-term RTC holdover. |
Compared with STM32F407VGT6 and RP2040, the TM4C123GH6ZRBT7R offers unique integration of USB PHY, hibernation with RTC+RAM, and production-grade analog subsystem - making it optimal for battery-backed industrial endpoints where BOM count, certification effort, and long-term reliability are prioritized over raw clock speed or flash capacity.
Availability
TM4C123GH6ZRBT7R is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and IoT edge sensor gateway applications requiring stable component supply, long lifecycle support, and qualified automotive/industrial temperature grade (-40°C to +105°C).
Supply support for TM4C123GH6ZRBT7R 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, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets since 1930.
The TM4C123GH6ZRBT7R belongs to TI's Tiva™ C Series microcontroller family, designed specifically for cost-sensitive, real-time embedded applications demanding integrated analog, USB, and low-power hibernation - targeting industrial automation, building controls, and portable instrumentation.
FAQ
What is the maximum operating frequency of the TM4C123GH6ZRBT7R?
The TM4C123GH6ZRBT7R operates at a maximum system clock frequency of 80 MHz, derived from its internal PLL with support for external crystal (1–25 MHz) or precision oscillator input. This frequency is validated across the full industrial temperature range (-40°C to +105°C) and powers all CPU, memory, and peripheral subsystems without throttling.
Does the TM4C123GH6ZRBT7R include an integrated USB physical layer (PHY)?
Yes, the TM4C123GH6ZRBT7R integrates a full-speed USB 2.0 OTG PHY with differential D+ and D− pins (USB0DP/USB0DM), eliminating the need for external transceivers. It supports device, host, and OTG modes and complies with USB 2.0 specification timing and electrical requirements when used with proper PCB layout and termination.
How much battery-backed memory does the TM4C123GH6ZRBT7R provide in hibernate mode?
The TM4C123GH6ZRBT7R provides 2 KB of battery-backed SRAM accessible during hibernate mode when powered by the VBAT supply. This memory retains critical data such as calibration coefficients, fault logs, or RTC alarm settings across main power loss, and is fully functional with the integrated real-time clock.
What ADC resolution and sampling rate does the TM4C123GH6ZRBT7R support?
The TM4C123GH6ZRBT7R features a 12-bit successive-approximation ADC with a maximum sampling rate of 1 MSPS across up to 12 input channels. It includes hardware sample averaging, programmable trigger sources (timer, PWM, GPIO), and differential input mode - meeting requirements for precision analog monitoring in industrial control loops.
Is the TM4C123GH6ZRBT7R pin-compatible with other Tiva C Series microcontrollers?
No, the TM4C123GH6ZRBT7R is not universally pin-compatible with other Tiva C Series devices. While it shares the 100-pin LQFP package with some variants (e.g., TM4C123GH6PM), pin functions differ significantly due to variations in peripheral sets and routing - for example, USB PHY pins are absent on non-USB variants. Board design must be verified against the specific device's datasheet.
TM4C123GH6ZRBT7R 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, USB OTG
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123GH6ZRBT7R FAQ
1.How can I place an order for TM4C123GH6ZRBT7R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123GH6ZRBT7R 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 TM4C123GH6ZRBT7R reliable?
The price and inventory of TM4C123GH6ZRBT7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123GH6ZRBT7R is usually 5 days.
3.What payment methods are accepted for TM4C123GH6ZRBT7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123GH6ZRBT7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123GH6ZRBT7R?
TM4C123GH6ZRBT7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123GH6ZRBT7R 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 TM4C123GH6ZRBT7R?
For technical support, including TM4C123GH6ZRBT7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123GH6ZRBT7R requirements.
6.How does Aetrix verify that TM4C123GH6ZRBT7R is sourced from the original manufacturer or authorized distributors?
All TM4C123GH6ZRBT7R 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 TM4C123GH6ZRBT7R meets industry standards.
7.What is the process for return or replacement of TM4C123GH6ZRBT7R?
All TM4C123GH6ZRBT7R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123GH6ZRBT7R, 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 TM4C123GH6ZRBT7R part is unused and in its original packaging.
Return procedure for TM4C123GH6ZRBT7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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