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Texas Instruments TM4C1237H6PGEI7
- Part No.:
- TM4C1237H6PGEI7
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
TM4C1237H6PGEI7.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
TM4C1237H6PGEI7 from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB Flash, 32 KB SRAM, and integrated analog peripherals including 12-bit ADC (up to 1MSPS), 8-channel PWM, and USB 2.0 device interface. It operates at up to 80 MHz, supports -40°C to +105°C industrial temperature range, and is used in motor control, industrial sensing, and USB-connected embedded systems.
For engineers reviewing the TM4C1237H6PGEI7 datasheet, TM4C1237H6PGEI7 pinout, TM4C1237H6PGEI7 application, or TM4C1237H6PGEI7 equivalent, key selection considerations include its 100-pin LQFP package, integrated USB PHY, hibernation module with RTC and battery-backed memory, and support for TivaWare™ software stack and TI's Code Composer Studio™ IDE.
Technical Context
The TM4C1237H6PGEI7 integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), memory protection unit (MPU), and nested vectored interrupt controller (NVIC). It features a 32-bit bus architecture, 80 MHz maximum system clock, and on-chip debug via SWD/JTAG.
Its peripheral set includes two UARTs, two I²C modules, two SPI interfaces, four 32-bit general-purpose timers (with PWM capability), one watchdog timer, and a hibernation module supporting RTC wake-up and battery-backed SRAM retention. All peripherals are register-mapped to APB buses with configurable clock gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU and MPU - enables deterministic real-time control with floating-point math acceleration. |
| Max Clock Speed | 80 MHz - supports high-throughput signal processing and fast peripheral response in time-critical applications. |
| Flash / SRAM | 256 KB Flash / 32 KB SRAM - sufficient for complex firmware with USB stack, RTOS, and sensor fusion algorithms. |
| ADC | 12-bit, 1 MSPS, 12-channel - suitable for precision analog acquisition in motor current sensing or environmental monitoring. |
| USB Interface | USB 2.0 Device with integrated PHY - eliminates need for external transceiver; supports CDC, HID, and MSC class implementations. |
| Operating Temp | -40°C to +105°C - qualified for industrial and extended-temperature environments without derating. |
| Hibernation Mode | RTC + battery-backed 2 KB SRAM - enables ultra-low-power operation with wake-on-timer or GPIO event, ideal for battery-powered nodes. |
Pinout & Package
TM4C1237H6PGEI7 is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series pinout layout, supporting multiplexed I/O across GPIO banks A–K.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VDDA / VDDC | Power supply inputs | Separate digital (VDD), analog (VDDA), and core (VDDC) rails enable noise isolation for ADC and PLL stability. |
| USB0VBUS / USB0ID | USB detection pins | Enable host/device role detection and VBUS presence sensing per USB specification. |
| PD0 / PD1 | UART0 I/O | Default UART0 TX/RX pins; configurable as GPIO or alternate functions like I²C or PWM. |
| PF0–PF4 | GPIO / NMI / BOOT | Multi-function port F supports non-maskable interrupt (PF0), boot mode selection (PF4), and user I/O. |
| HIBERNATE_RTCCLK | Hibernate module clock input | Accepts 32.768 kHz crystal or external clock for RTC and hibernation timing accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision math - reduces cycle count for PID control, FFT, or sensor calibration. |
| Integrated USB PHY | On-die USB 2.0 transceiver - eliminates external components, simplifies BOM, and ensures signal integrity compliance. |
| Hibernation Module | Sub-µA deep-sleep state with RTC alarm and 2 KB retained RAM - extends battery life in remote sensors or metering devices. |
| Programmable GPIO | 100-pin I/O with slew-rate control, pull-up/down, and open-drain options - supports mixed-voltage interfacing and ESD robustness. |
| TivaWare™ Support | TI-provided driver library, USB stack, and example projects - accelerates development of USB, motor control, and communication firmware. |
Applications
| Industrial Motor Control | USB-Connected Sensor Hub |
|---|---|
|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and real-time commutation. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating 8-channel PWM, sampling ADC at 1 MSPS, and managing gate driver timing. Use Value: Integrated FPU and PWM modules reduce external component count; 80 MHz clock ensures sub-1 µs loop execution for <10 µs current regulation intervals. |
Use Scenario: Multi-sensor node aggregating temperature, humidity, and accelerometer data, then streaming over USB CDC to host PC. IC Role / Device Role / Timing Role: Central data concentrator with USB device interface, ADC sequencing, and low-power hibernation between measurements. Use Value: On-chip USB PHY and hibernation module enable direct plug-and-play connectivity and >1-year battery life on coin cell. |
| Smart Building Thermostat | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Wall-mounted HVAC controller with touchscreen interface, ambient sensing, and wireless gateway communication. IC Role / Device Role / Timing Role: Primary MCU handling UI rendering, sensor polling, and serial communication to Zigbee/Wi-Fi co-processor. Use Value: 256 KB Flash stores dual-application firmware (UI + comms); 32 KB SRAM accommodates graphics buffer and protocol stacks. |
Use Scenario: DIN-rail mounted I/O expansion module with isolated digital inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol bridge and I/O manager using UART1 for RS-485, GPIO for opto-isolated channels, and watchdog for fail-safe reset. Use Value: Industrial temperature rating (-40°C to +105°C) and robust GPIO pad controls ensure reliability in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PGE | Same package and pinout; 256 KB Flash, 32 KB SRAM, but lacks USB PHY - requires external transceiver. | Used where USB is not required or external PHY is preferred for ESD/isolation reasons. | Select TM4C123GH6PGE if USB device functionality is unnecessary or if board-level isolation mandates external PHY. |
| STM32F407VGT6 | ARM Cortex-M4F core, 1024 KB Flash, 192 KB SRAM, no integrated USB PHY, different pinout and peripheral mapping. | Preferred in designs needing larger memory footprint, Ethernet MAC, or higher peripheral density (e.g., camera interface). | Choose STM32F407VGT6 when scaling beyond 256 KB Flash or requiring Ethernet, FSMC, or additional ADC resolution. |
Compared with TM4C1237H6PGEI7, TM4C123GH6PGE offers identical form factor but removes USB integration, increasing BOM cost and layout complexity for USB use cases; STM32F407VGT6 provides greater memory and peripheral headroom but requires full hardware and software re-design due to non-compatible pinout and register structure.
Availability
TM4C1237H6PGEI7 is available at Aetrix Electronics and suitable for industrial motor control, USB-connected sensor hubs, and smart building thermostats requiring stable component supply and long-term production support.
Supply support for TM4C1237H6PGEI7 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 history.
The TM4C1237H6PGEI7 belongs to TI's Tiva™ C Series microcontroller family, designed specifically for cost-sensitive, performance-driven industrial and consumer applications requiring USB connectivity, real-time control, and low-power operation.
FAQ
What is the maximum operating frequency of the TM4C1237H6PGEI7?
The TM4C1237H6PGEI7 operates at a maximum system clock frequency of 80 MHz. This speed is achieved using the internal PLL driven by either the main oscillator (4–25 MHz crystal) or internal precision oscillator. The 80 MHz clock feeds the CPU, memory subsystem, and all APB peripherals, enabling deterministic real-time execution for motor control and communication protocols. The TM4C1237H6PGEI7 maintains this frequency across its full industrial temperature range (-40°C to +105°C) without derating.
Does the TM4C1237H6PGEI7 include an integrated USB physical layer (PHY)?
Yes, the TM4C1237H6PGEI7 includes a fully integrated USB 2.0 Device PHY compliant with the USB specification. This eliminates the need for external transceivers, reduces BOM count, and simplifies PCB layout. The PHY supports full-speed (12 Mbps) operation and is compatible with standard USB device classes including CDC, HID, and MSC. USB functionality is accessible via dedicated pins (USB0VBUS, USB0ID, USB0DM, USB0DP) and managed through the USB controller registers in the TM4C1237H6PGEI7.
What analog peripherals are included in the TM4C1237H6PGEI7?
The TM4C1237H6PGEI7 integrates a 12-bit analog-to-digital converter (ADC) with up to 12 input channels and 1 MSPS sample rate, plus an internal temperature sensor. It also includes eight PWM generator blocks (each with two 16-bit counters), a hibernation module with RTC and 2 KB battery-backed SRAM, and programmable analog comparators. These peripherals support precision sensing, motor control timing, and ultra-low-power operation - all accessible via the same 100-pin LQFP package used by the TM4C1237H6PGEI7.
Is the TM4C1237H6PGEI7 supported by TI's TivaWare™ software suite?
Yes, the TM4C1237H6PGEI7 is fully supported by TI's TivaWare™ Peripheral Driver Library, which provides standardized APIs for all on-chip peripherals including GPIO, UART, I²C, SPI, ADC, PWM, USB, and hibernation. TivaWare™ also includes USB stack implementations, bootloader examples, and integration with TI's Code Composer Studio™ IDE. This software support is validated and maintained specifically for the TM4C1237H6PGEI7 and related Tiva C Series devices.
What is the temperature grade and package type of the TM4C1237H6PGEI7?
The TM4C1237H6PGEI7 is rated for industrial temperature operation from -40°C to +105°C and is packaged in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. This package supports automated assembly, provides adequate thermal dissipation for continuous 80 MHz operation, and is pin-compatible with other TM4C123x devices in the same footprint - enabling design reuse across performance tiers within the Tiva C Series family.
TM4C1237H6PGEI7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, 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 22x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1237H6PGEI7 FAQ
1.How can I place an order for TM4C1237H6PGEI7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1237H6PGEI7 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 TM4C1237H6PGEI7 reliable?
The price and inventory of TM4C1237H6PGEI7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1237H6PGEI7 is usually 5 days.
3.What payment methods are accepted for TM4C1237H6PGEI7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1237H6PGEI7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1237H6PGEI7?
TM4C1237H6PGEI7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1237H6PGEI7 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 TM4C1237H6PGEI7?
For technical support, including TM4C1237H6PGEI7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1237H6PGEI7 requirements.
6.How does Aetrix verify that TM4C1237H6PGEI7 is sourced from the original manufacturer or authorized distributors?
All TM4C1237H6PGEI7 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 TM4C1237H6PGEI7 meets industry standards.
7.What is the process for return or replacement of TM4C1237H6PGEI7?
All TM4C1237H6PGEI7 units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1237H6PGEI7, 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 TM4C1237H6PGEI7 part is unused and in its original packaging.
Return procedure for TM4C1237H6PGEI7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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