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Texas Instruments TM4C123GH6ZXRI7R
- Part No.:
- TM4C123GH6ZXRI7R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 168-TFBGA
- Datasheet:
-
TM4C123GH6ZXRI7R.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 168NFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TM4C123GH6ZXRI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 device controller, 12-bit ADC (1 MSPS, 12 channels), and 48 GPIOs in a 144-pin LQFP package. It serves as the main system controller in industrial motor drives requiring real-time PWM generation, analog sensing, and USB firmware updates.
For engineers reviewing the TM4C123GH6ZXRI7R datasheet, TM4C123GH6ZXRI7R pinout, TM4C123GH6ZXRI7R application, or TM4C123GH6ZXRI7R equivalent, key selection criteria include its integrated USB PHY, hibernation module with RTC and battery-backed memory, deterministic FPU-enabled control loop execution, and support for TivaWare™ peripheral driver library in C/C++ embedded development.
Technical Context
The TM4C123GH6ZXRI7R implements a full-featured ARM Cortex-M4F core with single-precision floating-point unit, enabling cycle-accurate math for motor control algorithms and sensor fusion. It integrates μDMA with 32-channel arbitration to offload CPU from high-bandwidth peripheral transfers including ADC sampling, UART streaming, and USB endpoint buffering.
Its system-level integration includes a programmable clock tree with PLL, multiple low-power modes (sleep, deep-sleep, hibernate), and on-chip voltage regulation supporting 1.2 V core and 3.3 V I/O operation. The hibernation module provides RTC wake-up, battery-backed 2 KB SRAM, and VBAT monitoring - critical for battery-powered edge nodes requiring long-term data retention without external backup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware FPU - enables real-time floating-point control loops without software emulation overhead. |
| Memory | 256 KB flash + 32 KB SRAM + 2 KB hibernation SRAM - sufficient for bootloader, application code, and retained state across power cycles. |
| Analog | 12-bit ADC, 1 MSPS, 12 input channels, internal temperature sensor - supports multi-sensor acquisition in compact industrial controllers. |
| USB | USB 2.0 Device Controller with integrated PHY - eliminates need for external transceiver; supports CDC, HID, and DFU class firmware updates. |
| Timers & PWM | 8 × 32-bit GPTM (with PWM/CCP), 2 × watchdog timers - delivers precise motor phase timing, dead-time insertion, and safety monitoring. |
| I/O & Peripherals | 48 GPIOs, 8 × UART, 4 × SPI, 4 × I²C, 2 × CAN 2.0A/B - enables robust fieldbus connectivity and mixed-signal interface consolidation. |
| Package & Temp | 144-pin LQFP, –40°C to +105°C industrial grade - suitable for convection-cooled motor drive enclosures and factory automation panels. |
Pinout & Package
TM4C123GH6ZXRI7R uses a 144-pin LQFP (16 mm × 16 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per TI SPMS398A datasheet Rev A (June 2014), with dedicated JTAG/SWD debug pins, USB D+/D– differential pair, and configurable GPIOs mapped to all major peripherals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | VDD (3.3 V I/O), VDDA (3.3 V analog), VDDC (1.2 V core) - require separate decoupling; VDDA must be ≥ VDDC and ≤ VDD. |
| GND, GNDA, GNDC | Ground returns | Separate analog/digital/core ground planes recommended to minimize noise coupling into ADC and PLL circuits. |
| USB0DP / USB0DM | USB 2.0 differential pair | Integrated PHY supports full-speed (12 Mbps); requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for device enumeration. |
| PD0 / PD1 | UART0 RX/TX | Default UART0 pins; support auto-baud detection and IrDA encoding - used for console debug and host communication. |
| PF0–PF4 | GPIO / NMI / SW2 | PF0 doubles as NMI input; PF4 is factory-trimmed for internal oscillator calibration - critical for accurate clock startup without external crystal. |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Retains RTC time, 2 KB SRAM, and VBAT status during power loss - enables rapid wake-up and state recovery in battery-backed sensors. |
| μDMA Controller | 32-channel arbiter with scatter-gather support - eliminates CPU polling for ADC buffers, UART FIFOs, and USB endpoints. |
| Integrated USB PHY | On-die transceiver with suspend/resume signaling - reduces BOM cost and PCB area vs. external PHY solutions. |
| TivaWare™ Support | TI-provided C driver library with HAL abstraction, example projects, and CMSIS-compliant startup code - accelerates firmware bring-up. |
| Peripheral Multiplexing | Up to 8 alternate functions per GPIO pin - allows flexible board layout and dynamic peripheral reassignment at runtime. |
Applications
| Industrial Motor Control | USB Firmware Update Node |
|---|---|
|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and thermal monitoring in HVAC blowers. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithm via FPU, generating 3-phase PWM with dead-time, sampling ADC at 10 kHz, and managing CAN bus diagnostics. Use Value: Integrated 80 MHz M4F core and 8 × GPTM timers eliminate external timing ICs; hibernation mode preserves fault logs during AC power interruption. |
Use Scenario: Field-deployed IoT gateway performing secure firmware validation and over-the-air update via USB mass storage class. IC Role / Device Role / Timing Role: USB device controller hosting virtual drive; flash memory executes signature verification before programming new image. Use Value: On-chip USB PHY and 256 KB flash enable self-contained update capability without external memory or transceiver - reducing bill-of-materials by 3 components. |
| Programmable Logic Controller (PLC) I/O Module | Smart Sensor Hub |
|
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel opto-isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Central sequencer coordinating GPIO reads/writes, UART Modbus RTU communication, and watchdog supervision of field-side logic. Use Value: 48 GPIOs with programmable slew rate and drive strength simplify interface to diverse industrial loads; dual CAN interfaces support redundant fieldbus links. |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting via UART to LoRaWAN concentrator. IC Role / Device Role / Timing Role: Low-power coordinator entering hibernate between 10-second measurement cycles; RTC triggers wake-up and initiates sensor polling sequence. Use Value: Hibernation current < 1.5 µA extends 2× AA battery life beyond 5 years; internal temperature sensor calibrates external sensor drift without added components. |
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; lacks hibernation module with battery-backed RAM. | Better raw performance and memory headroom; less suitable for ultra-low-power wake-on-event or USB-device-only designs. | Select when higher CPU throughput or larger code footprint is required, and external USB PHY is acceptable. |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB flash, USB 1.1 device, no analog peripherals (ADC limited to 4 channels, no temperature sensor), no hibernation. | Lower cost and power; insufficient for analog-intensive industrial control or RTC-critical battery backup. | Select for cost-sensitive consumer devices where USB speed and analog precision are secondary. |
Compared with STM32F407VGT6 and RP2040, the TM4C123GH6ZXRI7R uniquely combines integrated USB 2.0 PHY, hibernation with RTC and battery-backed SRAM, and industrial-grade analog (12-bit ADC, temp sensor) - making it optimal for space-constrained, battery-aware, USB-connected industrial controllers where component count and power predictability are design priorities.
Availability
TM4C123GH6ZXRI7R is available at Aetrix Electronics and suitable for industrial motor drives, USB firmware update nodes, programmable logic controller (PLC) I/O modules, and smart sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for TM4C123GH6ZXRI7R 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 with over 90 years of innovation in industrial and automotive electronics.
The TM4C123GH6ZXRI7R belongs to TI's Tiva C Series microcontrollers, designed specifically for cost-sensitive, real-time industrial control applications demanding integrated analog, USB, and low-power hibernation - bridging the gap between legacy 8-bit MCUs and high-end application processors.
FAQ
What is the maximum operating frequency of the TM4C123GH6ZXRI7R?
The TM4C123GH6ZXRI7R operates at a maximum CPU frequency of 80 MHz using its internal PLL with an external 1–25 MHz crystal or the internal 16 MHz oscillator. This frequency is fully supported across the full industrial temperature range (–40°C to +105°C) and enables deterministic execution of real-time control tasks such as motor commutation and PID loops within strict timing budgets. The TM4C123GH6ZXRI7R maintains this rating without derating under typical PCB thermal conditions.
Does the TM4C123GH6ZXRI7R include an integrated USB physical layer (PHY)?
Yes, the TM4C123GH6ZXRI7R integrates a full-speed USB 2.0 device PHY compliant with USB specification revision 2.0. It supports standard USB classes including CDC, HID, and DFU directly from on-chip firmware - eliminating the need for external transceivers or level shifters. The TM4C123GH6ZXRI7R USB module includes dedicated DMA channels, endpoint buffers, and suspend/resume signaling logic for robust host interaction.
What low-power modes does the TM4C123GH6ZXRI7R support, and what is the lowest current draw?
The TM4C123GH6ZXRI7R supports Sleep, Deep-Sleep, and Hibernate modes. In Hibernate mode with RTC active and 2 KB SRAM retained, typical current consumption is 1.4 µA at 3.3 V and 25°C. This mode preserves register state, RTC time, and battery-backed memory while disabling all clocks except the hibernation module's 32.768 kHz source - making the TM4C123GH6ZXRI7R suitable for decade-long battery operation in remote sensor nodes.
How many analog-to-digital converter (ADC) channels does the TM4C123GH6ZXRI7R provide, and what is its resolution?
The TM4C123GH6ZXRI7R features a single 12-bit successive-approximation ADC with up to 12 external input channels and one internal temperature sensor channel. It achieves 1 MSPS sampling rate with hardware averaging (up to 64 samples) and four independent sample sequencers for autonomous triggering. This ADC configuration supports simultaneous multi-sensor acquisition in industrial control systems without external signal conditioning for basic temperature, voltage, or current monitoring tasks.
Is the TM4C123GH6ZXRI7R pin-compatible with other Tiva C Series microcontrollers?
The TM4C123GH6ZXRI7R is not universally pin-compatible across the Tiva C Series; however, it shares the same 144-pin LQFP package and core peripheral mapping with the TM4C123GH6PM and TM4C123GE6PM. Differences exist in flash size, SRAM allocation, and peripheral enablement - so direct substitution requires validation of memory usage and peripheral initialization. The TM4C123GH6ZXRI7R pinout is documented in Section 1.4 of TI SPMS398A and must be verified against target board layout before replacement.
TM4C123GH6ZXRI7R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 168-TFBGA
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- 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, 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C123GH6ZXRI7R FAQ
1.How can I place an order for TM4C123GH6ZXRI7R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C123GH6ZXRI7R 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 TM4C123GH6ZXRI7R reliable?
The price and inventory of TM4C123GH6ZXRI7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C123GH6ZXRI7R is usually 5 days.
3.What payment methods are accepted for TM4C123GH6ZXRI7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C123GH6ZXRI7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C123GH6ZXRI7R?
TM4C123GH6ZXRI7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C123GH6ZXRI7R 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 TM4C123GH6ZXRI7R?
For technical support, including TM4C123GH6ZXRI7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C123GH6ZXRI7R requirements.
6.How does Aetrix verify that TM4C123GH6ZXRI7R is sourced from the original manufacturer or authorized distributors?
All TM4C123GH6ZXRI7R 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 TM4C123GH6ZXRI7R meets industry standards.
7.What is the process for return or replacement of TM4C123GH6ZXRI7R?
All TM4C123GH6ZXRI7R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C123GH6ZXRI7R, 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 TM4C123GH6ZXRI7R part is unused and in its original packaging.
Return procedure for TM4C123GH6ZXRI7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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