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Texas Instruments TM4C1230C3PMI7R
- Part No.:
- TM4C1230C3PMI7R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1230C3PMI7R.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:488
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Product details
Overview
TM4C1230C3PMI7R from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 32 KB Flash, 8 KB SRAM, integrated ADC (12-bit, 1 MSPS), and multiple serial interfaces including UART, I²C, and SSI. It serves as a main system controller in industrial sensor nodes requiring real-time analog acquisition and deterministic communication.
For engineers reviewing the TM4C1230C3PMI7R datasheet, TM4C1230C3PMI7R pinout, TM4C1230C3PMI7R application, or TM4C1230C3PMI7R equivalent, key selection criteria include its 80 MHz FPU-enabled core, 12-bit ADC with hardware averaging, 40-pin QFN package, and support for TivaWare™ software stack in resource-constrained embedded designs.
Technical Context
The TM4C1230C3PMI7R implements a full-featured Cortex-M4F core with single-precision floating-point unit and NVIC supporting up to 64 interrupt lines. Its memory subsystem includes 32 KB on-chip Flash with 128-bit wide access and 8 KB SRAM with zero-wait-state operation at maximum frequency.
Peripherals are tightly integrated via the Advanced Microcontroller Bus Architecture (AMBA) AHB/APB matrix, enabling concurrent DMA transfers across UART, ADC, and GPIO while maintaining deterministic latency for real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with FPU - enables real-time signal processing without external math coprocessor |
| Flash Memory | 32 KB - sufficient for bootloader + application firmware with room for field updates |
| SRAM | 8 KB - supports stack/heap for RTOS tasks and local buffering of ADC samples |
| ADC | 12-bit, 1 MSPS, 8-channel - captures fast transients in motor current sensing or power monitoring |
| UARTs | 2 × UART - provides dedicated debug port and host interface with FIFO and modem control |
| I²C Interface | 1 × Master/Slave - connects to temperature sensors, EEPROMs, or digital potentiometers |
| GPIO Pins | 34 configurable I/O - includes slew-rate control and 5-V tolerant inputs for mixed-voltage interfacing |
| Package | 40-pin QFN (5 mm × 5 mm, 0.4 mm pitch) - compact footprint suitable for space-limited PCB layouts |
Pinout & Package
TM4C1230C3PMI7R uses a 40-pin QFN package with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series layout for 40-pin variants, supporting JTAG/SWD debug, power sequencing, and peripheral multiplexing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital logic, analog circuitry, and core voltage enable noise isolation for ADC accuracy |
| GND, GNDA | Ground returns | Separate analog/digital ground pins reduce coupling between high-speed switching and sensitive analog paths |
| PD0–PD7, PE0–PE5, PF0–PF4 | General-purpose I/O | 34 total GPIOs with programmable drive strength, pull-up/down, and interrupt capability per pin |
| PA0–PA7, PB0–PB7 | Multiplexed peripheral signals | Shared with UART0/1, SSI0, I²C0, PWM, and timer capture - configured via GPIO AFSEL register |
| NMI, RESET | System control inputs | Non-maskable interrupt and active-low reset with internal pull-up - ensure reliable startup and fault recovery |
| TCK, TMS, TDI, TDO, SWDIO, SWCLK | JTAG/SWD debug interface | Supports full-speed debugging and flash programming without requiring external debug probe headers |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Single-precision IEEE 754 compliance accelerates trigonometric and filter computations in motor control algorithms |
| Hardware ADC Averaging | Up to 64-sample hardware averaging reduces noise without CPU overhead in sensor front-end applications |
| μDMA Controller | 32-channel micro-DMA offloads data movement from CPU - critical for sustained UART/ADC throughput at 80 MHz |
| ROM-Based Bootloader | Pre-programmed ROM bootloader supports In-Application Programming (IAP) over UART or USB without Flash-resident code |
| Peripheral Gate Control | Individual clock gating per peripheral minimizes dynamic power during low-duty-cycle operation in battery-powered nodes |
| GPIO Commit Registers | Write-once configuration locking prevents accidental reconfiguration of safety-critical I/O during runtime |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Compact environmental monitor collecting temperature, humidity, and pressure via I²C sensors while transmitting data over UART to gateway. IC Role / Device Role / Timing Role: Central controller executing sensor fusion, managing low-power sleep cycles, and synchronizing data transmission timing. Use Value: Integrated 12-bit ADC and hardware averaging eliminate external signal conditioning; 8 KB SRAM buffers burst reads before transmission. | Use Scenario: Brushless DC motor driver board using hall-effect feedback and PWM output for commutation control. IC Role / Device Role / Timing Role: Real-time motion controller generating precise 20 kHz PWM waveforms and sampling current feedback at 100 kHz. Use Value: 80 MHz Cortex-M4F with FPU computes field-oriented control (FOC) in <5 µs; GPIO commit registers lock PWM pin states during fault conditions. |
| Programmable Logic Controller (PLC) I/O Module | Smart Power Meter Front-End |
Use Scenario: DIN-rail mounted I/O expansion module reading discrete inputs and driving relay outputs under Modbus RTU protocol. IC Role / Device Role / Timing Role: Protocol handler and digital I/O manager with deterministic UART response timing and input debouncing. Use Value: Two UARTs allow simultaneous Modbus master/slave operation; 34 GPIOs support 16-channel isolated input/output with configurable edge detection. | Use Scenario: Energy meter measuring line voltage/current via shunt resistors and reporting kWh via RS-485 interface. IC Role / Device Role / Timing Role: Analog acquisition engine performing synchronized sampling and RMS calculation with timestamped event logging. Use Value: 1 MSPS ADC captures waveform harmonics; hardware averaging improves effective resolution to >13 bits for accurate energy computation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C1231C3PMI7R | Same core and peripherals but adds USB 2.0 OTG controller and increases Flash to 64 KB | Required when host/device USB connectivity or larger firmware image is needed | Select TM4C1231C3PMI7R only if USB functionality is mandatory; otherwise TM4C1230C3PMI7R offers lower cost and identical analog/peripheral performance |
| STM32F401CCU6 | ARM Cortex-M4F @ 84 MHz, 256 KB Flash, 64 KB SRAM, no integrated USB PHY, different pinout and peripheral mapping | Better suited for applications needing larger code space or higher RAM for complex protocols | Choose STM32F401CCU6 when firmware complexity exceeds 32 KB or when ST's ecosystem tools are preferred; not pin-compatible with TM4C1230C3PMI7R |
Compared with TM4C1231C3PMI7R, TM4C1230C3PMI7R trades USB capability for lower BOM cost and identical analog/peripheral performance; versus STM32F401CCU6, it offers tighter integration of debug, bootloader, and peripheral clock control but less memory headroom for large applications.
Availability
TM4C1230C3PMI7R is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, PLC I/O modules, and smart power meter front-ends requiring stable component supply and long-term production continuity.
Supply support for TM4C1230C3PMI7R 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 Tiva C Series targets cost-sensitive, real-time embedded applications where integrated analog peripherals, deterministic timing, and robust software support (TivaWare™) are essential - particularly in factory automation and energy infrastructure.
FAQ
What is the maximum operating frequency of the TM4C1230C3PMI7R?
The TM4C1230C3PMI7R operates at a maximum system clock frequency of 80 MHz, derived from an internal PLL that accepts input from the precision internal oscillator (PIOSC) or external crystal. This frequency is fully supported across all on-chip peripherals, including the ADC, UARTs, and timers, with zero-wait-state execution from Flash memory.
Does the TM4C1230C3PMI7R include a hardware floating-point unit?
Yes, the TM4C1230C3PMI7R integrates a single-precision IEEE 754-compliant Floating-Point Unit (FPU) as part of its ARM Cortex-M4F core. This allows efficient execution of mathematical operations such as sine/cosine, square root, and division without software emulation - critical for real-time control algorithms running on the TM4C1230C3PMI7R.
How much Flash and SRAM memory does the TM4C1230C3PMI7R provide?
The TM4C1230C3PMI7R includes 32 KB of on-chip Flash memory for program storage and 8 KB of SRAM for runtime data. Both memories are accessible at full 80 MHz speed without wait states, and the Flash supports in-application programming (IAP) via the ROM bootloader, enabling field firmware updates without external programmers.
What ADC capabilities does the TM4C1230C3PMI7R offer?
The TM4C1230C3PMI7R features a 12-bit successive-approximation ADC with up to 1 MSPS sampling rate and eight input channels. It supports hardware sample averaging (up to 64 samples), differential input mode, and an internal temperature sensor. These capabilities make the TM4C1230C3PMI7R well-suited for precision analog measurement in industrial and power applications.
Is the TM4C1230C3PMI7R pin-compatible with other Tiva C Series microcontrollers?
The TM4C1230C3PMI7R uses a 40-pin QFN package shared with several other Tiva C Series devices, including the TM4C1231C3PMI7R and TM4C1232C3PMI7R. However, pin compatibility is not guaranteed across all functions due to differences in peripheral enablement and alternate function mapping - always verify signal routing and register configuration against the specific device datasheet before substituting the TM4C1230C3PMI7R.
TM4C1230C3PMI7R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- 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, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 49
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 12K 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:
TM4C1230C3PMI7R FAQ
1.How can I place an order for TM4C1230C3PMI7R through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1230C3PMI7R 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 TM4C1230C3PMI7R reliable?
The price and inventory of TM4C1230C3PMI7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1230C3PMI7R is usually 5 days.
3.What payment methods are accepted for TM4C1230C3PMI7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1230C3PMI7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1230C3PMI7R?
TM4C1230C3PMI7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1230C3PMI7R 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 TM4C1230C3PMI7R?
For technical support, including TM4C1230C3PMI7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1230C3PMI7R requirements.
6.How does Aetrix verify that TM4C1230C3PMI7R is sourced from the original manufacturer or authorized distributors?
All TM4C1230C3PMI7R 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 TM4C1230C3PMI7R meets industry standards.
7.What is the process for return or replacement of TM4C1230C3PMI7R?
All TM4C1230C3PMI7R units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1230C3PMI7R, 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 TM4C1230C3PMI7R part is unused and in its original packaging.
Return procedure for TM4C1230C3PMI7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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