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Texas Instruments TM4C1236E6PMIR
- Part No.:
- TM4C1236E6PMIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1236E6PMIR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,327
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Product details
Overview
TM4C1236E6PMIR 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 with 12 channels, two UARTs, two I²C, two SSI, and four 32-bit general-purpose timers. It operates at up to 80 MHz and supports industrial temperature range (–40°C to 105°C) in a 64-pin LQFP package. It serves as a main system controller in motor control and industrial sensing applications.
For engineers reviewing the TM4C1236E6PMIR datasheet, TM4C1236E6PMIR pinout, TM4C1236E6PMIR application, or TM4C1236E6PMIR equivalent, key selection criteria include its 80-MHz Cortex-M4F core with FPU, on-chip 256 KB flash/32 KB SRAM, 12-bit ADC performance, dual-CAN capability (via software-configurable GPIO remapping), and support for real-time deterministic control in resource-constrained embedded systems.
Technical Context
The TM4C1236E6PMIR integrates an ARM Cortex-M4F core with single-precision floating-point unit and memory protection unit, enabling deterministic real-time execution and secure code partitioning. Its system-level integration includes a 400-kSPS 12-bit ADC with hardware averaging, configurable PWM outputs via timer modules, and multiple serial interfaces supporting synchronous (SSI) and asynchronous (UART/I²C) protocols.
Power management features include deep-sleep modes with wake-on-peripheral interrupt, clock gating per peripheral, and voltage regulation down to 1.2 V core supply. Debug infrastructure includes SWD/JTAG with trace port interface unit (TPIU) for real-time instruction tracing and non-intrusive debugging in production firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware FPU - enables real-time signal processing and floating-point math without software emulation overhead. |
| Flash Memory | 256 KB - sufficient for complex control algorithms plus bootloader and field-upgradable firmware images. |
| SRAM | 32 KB - supports real-time data buffering, stack/heap allocation for RTOS, and sensor fusion buffers. |
| ADC | 12-bit, 12-channel, 400 kSPS - delivers high-resolution analog acquisition for motor current sensing and temperature monitoring. |
| Timers | Four 32-bit GP timers (each configurable as two 16-bit or one 32-bit) - provides flexible PWM generation, input capture, and time-stamped event logging. |
| Serial Interfaces | 2× UART, 2× I²C, 2× SSI - supports multi-protocol communication with sensors, displays, and host controllers without external bridging ICs. |
| Operating Temp | –40°C to +105°C - qualified for industrial and automotive under-hood environments without derating. |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) - compatible with standard PCB assembly processes and offers full GPIO access for prototyping and production. |
Pinout & Package
TM4C1236E6PMIR is housed in a 64-pin LQFP package (Pb-free, RoHS-compliant) with exposed thermal pad. Pin functions are defined by multiplexed peripheral assignment and configurable GPIO control registers. All pins support digital I/O, most support alternate peripheral functions, and specific pins provide dedicated analog inputs, crystal oscillator connections, and debug interface signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power Supply Inputs | Digital (3.3 V), analog (3.3 V), and core (1.2 V) supplies - require separate decoupling to ensure noise immunity for ADC and CPU operation. |
| GND, GNDA | Ground Returns | Digital and analog ground planes must be separated and joined at single point near regulator to minimize coupling noise into ADC. |
| OSC0, OSC1 | Clock Input Terminals | Accept external 4–25 MHz crystal or CMOS clock source - used to generate system clock via internal PLL for stable 80-MHz operation. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO Banks | Configurable digital I/O with slew-rate control, pull-up/down, and interrupt capability - enable direct connection to buttons, LEDs, and sensors. |
| PA0–PA7, PB0–PB7 | Analog Input / Peripheral Mux | Support ADC channel inputs (e.g., PA0 = ADC0ch0), UART0 (PA0/PA1), I²C0 (PB2/PB3), and SSI0 (PA2–PA5) - require careful pin assignment to avoid functional conflicts. |
| SWDIO, SWCLK | Debug Interface | ARM Serial Wire Debug (SWD) signals - allow programming and real-time debugging using standard J-Link or TI XDS110 probes without full JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated single-precision math enables fast PID loop execution, FFT computation, and sensor calibration without CPU load penalty. |
| Memory Protection Unit (MPU) | Enforces privilege-level memory access boundaries - critical for safe coexistence of RTOS kernel, application tasks, and bootloader in certified industrial firmware. |
| Programmable Clock Gating | Per-peripheral clock enable/disable reduces active power consumption by >40% when UART or ADC is idle during low-duty-cycle sensing. |
| Hardware Averaging ADC | Configurable 2–64 sample averaging per conversion - improves effective resolution to ~14 bits for noisy industrial analog signals without software filtering. |
| μDMA Controller | 32-channel micro-DMA offloads CPU from peripheral data movement - enables zero-CPU-overhead ADC streaming and UART transmit/receive buffering. |
Applications
| Motor Control System | Industrial Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, position feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Main system controller executing real-time commutation logic, PWM generation, and fault response within <1 µs latency. Use Value: Integrated 12-bit ADC with hardware averaging and 80-MHz FPU deliver precise current sampling and fast vector control calculations without external DSP. | Use Scenario: Multi-sensor node aggregating temperature, humidity, pressure, and vibration data for predictive maintenance. IC Role / Device Role / Timing Role: Central data acquisition and preprocessing unit with synchronized sampling across analog and digital sensors. Use Value: Four 32-bit timers enable precise timestamping of events; μDMA allows concurrent ADC, UART, and I²C transfers without CPU intervention. |
| Smart Energy Meter | PLC I/O Module |
Use Scenario: DIN-rail mounted meter measuring voltage, current, and power factor with tamper detection and HART/RS-485 backhaul. IC Role / Device Role / Timing Role: Primary metrology controller handling isolation-coupled analog front-end, energy calculation, and secure firmware updates. Use Value: 256 KB flash stores dual-bank firmware for fail-safe OTA updates; industrial temp rating ensures reliability in uncooled enclosures. | Use Scenario: Modular digital input/output expansion for programmable logic controllers with diagnostics and hot-swap support. IC Role / Device Role / Timing Role: Local intelligence node managing signal conditioning, short-circuit protection, and status reporting over CAN or RS-485. Use Value: GPIOs with programmable slew rate and interrupt-on-change reduce EMI and enable fast response to field device faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Same core and peripherals but with 256 KB flash, 32 KB SRAM, and identical 64-pin LQFP package - differs only in internal ROM bootloader version and minor errata fixes. | No functional difference in motor control or sensor hub use cases; supports same TivaWare SDK and development tools. | Select TM4C123GH6PM if requiring latest silicon revision with documented errata corrections and extended product longevity. |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB SRAM, but no integrated EEPROM or hardware ADC averaging; uses 100-pin LQFP package. | Better suited for high-throughput applications like graphics or audio processing; requires external components for robust industrial ADC performance. | Choose STM32F407VGT6 only when higher clock speed and larger memory are mandatory and board layout accommodates larger footprint and additional passive components. |
Compared with TM4C123GH6PM, the TM4C1236E6PMIR offers identical functionality with verified industrial qualification and legacy toolchain support; versus STM32F407VGT6, it trades raw performance for smaller size, lower BOM cost, and tighter integration of analog features needed in space-constrained industrial nodes.
Availability
TM4C1236E6PMIR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor hubs, smart energy meters, and PLC I/O modules requiring stable component supply, long-term manufacturability, and industrial temperature compliance.
Supply support for TM4C1236E6PMIR 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 TM4C1236E6PMIR belongs to TI's Tiva C Series microcontroller family, designed specifically for cost-sensitive, real-time industrial control applications requiring high analog integration, deterministic timing, and robust debug capabilities.
FAQ
What is the maximum operating frequency of the TM4C1236E6PMIR?
The TM4C1236E6PMIR operates at a maximum system clock frequency of 80 MHz, achieved using its internal PLL locked to an external 4–25 MHz crystal or clock source. This frequency applies to both the Cortex-M4F core and all synchronous peripherals, ensuring deterministic timing for real-time control loops and high-speed serial communication without overclocking risk.
Does the TM4C1236E6PMIR include a hardware floating-point unit?
Yes, the TM4C1236E6PMIR integrates a single-precision IEEE 754-compliant floating-point unit (FPU) as part of its ARM Cortex-M4F core. This enables efficient execution of trigonometric, exponential, and filtering operations required in motor control and sensor fusion-without software emulation-and is fully supported by TI's TivaWare C Series driver library and GCC/ARM compiler toolchains.
How much flash and SRAM memory does the TM4C1236E6PMIR have?
The TM4C1236E6PMIR contains 256 KB of on-chip flash memory for program storage and 32 KB of SRAM for runtime data, stack, and heap. Flash supports in-application programming (IAP) and dual-bank operation for safe firmware updates; SRAM includes parity checking for enhanced reliability in industrial environments where the TM4C1236E6PMIR is deployed.
What analog peripherals are integrated into the TM4C1236E6PMIR?
The TM4C1236E6PMIR integrates a 12-bit, 12-channel analog-to-digital converter (ADC) with up to 400 kSPS sampling rate, hardware sample averaging (2–64x), and internal temperature sensor. It also supports differential input mode and digital comparator units for autonomous threshold triggering-key features for precision measurement in motor current sensing and environmental monitoring applications using the TM4C1236E6PMIR.
Is the TM4C1236E6PMIR pin-compatible with other Tiva C Series MCUs?
The TM4C1236E6PMIR shares the same 64-pin LQFP package and pinout as the TM4C123GH6PM and TM4C123BH6PM variants. Signal mapping for GPIO, UART, I²C, SSI, ADC, and debug interfaces is identical across these parts, enabling direct replacement in existing designs-provided firmware accounts for minor differences in ROM bootloader behavior and errata mitigation requirements specific to the TM4C1236E6PMIR.
TM4C1236E6PMIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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:
- 49
- Program Memory Size:
- 128KB (128K 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1236E6PMIR FAQ
1.How can I place an order for TM4C1236E6PMIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1236E6PMIR 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 TM4C1236E6PMIR reliable?
The price and inventory of TM4C1236E6PMIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1236E6PMIR is usually 5 days.
3.What payment methods are accepted for TM4C1236E6PMIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1236E6PMIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1236E6PMIR?
TM4C1236E6PMIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1236E6PMIR 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 TM4C1236E6PMIR?
For technical support, including TM4C1236E6PMIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1236E6PMIR requirements.
6.How does Aetrix verify that TM4C1236E6PMIR is sourced from the original manufacturer or authorized distributors?
All TM4C1236E6PMIR 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 TM4C1236E6PMIR meets industry standards.
7.What is the process for return or replacement of TM4C1236E6PMIR?
All TM4C1236E6PMIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1236E6PMIR, 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 TM4C1236E6PMIR part is unused and in its original packaging.
Return procedure for TM4C1236E6PMIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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