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Texas Instruments LM3S615-IQN50-C2T
- Part No.:
- LM3S615-IQN50-C2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LM3S615-IQN50-C2T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
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Product details
Overview
LM3S615-IQN50-C2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 64 KB flash, 24 KB SRAM, integrated ADC (8-channel, 12-bit), dual UARTs, I²C, SSI, PWM, and analog comparators - designed for real-time motor control and industrial sensing applications.
For engineers reviewing the LM3S615-IQN50-C2T datasheet, LM3S615-IQN50-C2T pinout, LM3S615-IQN50-C2T application, or LM3S615-IQN50-C2T equivalent, key selection criteria include its 50 MHz operation, QFP-100 package, integrated motor control peripherals (PWM with dead-band, quadrature encoder input), and industrial temperature range (–40°C to +85°C).
Technical Context
The LM3S615-IQN50-C2T implements the ARM Cortex-M3 core with Thumb-2 instruction set, nested vectored interrupt controller (NVIC), and memory protection unit (MPU). It supports three low-power sleep modes and features a system timer (SysTick) plus four 32-bit general-purpose timers with RTC capability.
Its analog subsystem includes an 8-channel, 12-bit ADC with hardware averaging and internal temperature sensor, while digital peripherals include two UARTs (with FIFO and IrDA support), one I²C master/slave, one SSI (SPI-compatible), and a 6-PWM channel module with fault protection and synchronization inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, runs at up to 50 MHz - enables deterministic real-time execution with <12-cycle interrupt latency. |
| Memory | 64 KB on-chip flash (programmable in-system), 24 KB SRAM - sufficient for standalone firmware with real-time control loops and communication stacks. |
| ADC | 8-channel, 12-bit SAR ADC with 1 MSPS sample rate and hardware averaging - supports precision current/voltage sensing in motor drives. |
| PWM | 6-channel PWM generator with programmable dead-band, fault inputs, and sync triggers - directly controls 3-phase inverter gate drivers. |
| Communication | Dual UARTs (one with IrDA), I²C, SSI - enables serial diagnostics, sensor interfacing, and host MCU coordination without external bridges. |
| Temperature Range | –40°C to +85°C industrial grade - validated for deployment in factory automation and embedded power systems. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and provides full peripheral signal access. |
Pinout & Package
LM3S615-IQN50-C2T is housed in a 100-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, optimized for thermal dissipation in motor control and industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate digital, analog, and core voltage rails - enable noise isolation between logic, ADC, and CPU domains. |
| GND, GNDA, GNDC | Ground returns | Dedicated analog and core ground pins reduce coupling of switching noise into sensitive analog circuits. |
| PA0–PA7, PB0–PB7, etc. | GPIO with alternate functions | Multi-function pins support UART, I²C, SSI, PWM, ADC, and quadrature encoder - allow flexible board routing and peripheral sharing. |
| PH0/SSI0Clk, PH1/SSI0Fss | SSI peripheral signals | Hardware SSI interface pins mapped to Port H - eliminate bit-banged SPI and ensure deterministic timing for sensor or display interfaces. |
| PD0/T0CCP0, PD1/T0CCP1 | PWM output channels | Dedicated timer/PWM pins with edge-aligned and center-aligned modes - drive external gate drivers or H-bridge controllers directly. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Motor Control Peripherals | 6-PWM with dead-band insertion, fault shutdown, and quadrature encoder input - reduces external logic and improves safety-critical response time. |
| Hardware ADC Averaging | Up to 64-sample hardware averaging per conversion - improves effective resolution and eliminates software filtering overhead in current-sense applications. |
| Multiple Low-Power Modes | Three sleep modes (sleep, deep-sleep, hibernate) with wake-on-pin, timer, or peripheral event - extends battery life in portable industrial tools. |
| On-Chip Debug Interface | JTAG/SWD debug port with SWO trace output - enables real-time code profiling and non-intrusive debugging without halting motor control execution. |
| Internal Temperature Sensor | Calibrated on-die sensor with ±3°C accuracy - monitors die temperature for thermal derating or overtemperature shutdown in enclosed drives. |
Applications
| Industrial Motor Drives | Factory Automation Controllers |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in conveyor systems and CNC spindles. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithms with synchronized PWM generation and ADC sampling. Use Value: Integrated PWM dead-band and quadrature encoder input eliminate external timing ICs and reduce BOM count by ≥3 components. | Use Scenario: Standalone PLC-like controller managing I/O expansion, serial device polling, and local HMI updates. IC Role / Device Role / Timing Role: Central processing unit with deterministic interrupt handling for multi-sensor data acquisition and protocol translation (Modbus RTU over UART). Use Value: Dual UARTs with FIFO and hardware flow control support simultaneous RS-485 and RS-232 links without CPU overhead. |
| Embedded Power Converters | Intelligent Sensor Nodes |
Use Scenario: Digital control of isolated DC-DC converters with voltage/current loop regulation and fault logging. IC Role / Device Role / Timing Role: High-speed ADC sampling (1 MSPS) synchronized to PWM edges for precise current measurement in switching cycles. Use Value: Hardware ADC averaging and internal reference reduce need for external precision references and op-amp front-ends. | Use Scenario: Battery-powered environmental monitoring node with temperature, humidity, and vibration sensing. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor wake-up, data fusion, and wireless transmission scheduling. Use Value: Hibernate mode with RTC wake-up and internal temperature sensor enable autonomous operation for >1 year on coin-cell battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28027PTT | DSP-based C2000 core, 60 MHz, 32 KB flash, no Cortex-M3 ISA - optimized for math-intensive control but lacks native ARM toolchain compatibility. | Targets high-frequency PWM (>100 kHz) and advanced observer-based control; less suited for general-purpose protocol stacks. | Select when control algorithm complexity exceeds Cortex-M3 integer performance, and TI C2000 ecosystem is already established. |
| STM32F303VCT6 | ARM Cortex-M4F core, 72 MHz, 256 KB flash, 48 KB SRAM, FPU - broader peripheral set including op-amps and comparators, but larger footprint (100-pin LQFP same size, different pinout). | Better suited for mixed-signal applications requiring analog signal conditioning; not drop-in due to incompatible register map and pin assignment. | Choose for new designs needing floating-point math, higher memory headroom, or integrated analog front-end - requires PCB and firmware redesign. |
Compared with TMS320F28027PTT and STM32F303VCT6, the LM3S615-IQN50-C2T offers balanced real-time control, industrial-grade analog integration, and mature StellarisWare middleware - making it optimal for cost-sensitive, time-constrained motor control deployments where ARM Cortex-M3 tooling is preferred.
Availability
LM3S615-IQN50-C2T is available at Aetrix Electronics and suitable for industrial motor drives, factory automation controllers, and embedded power converters requiring stable component supply and long-term lifecycle support.
Supply support for LM3S615-IQN50-C2T 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience in industrial and automotive markets.
The Stellaris LM3S family was engineered specifically for deterministic real-time control in resource-constrained industrial environments - prioritizing low-latency peripherals, robust analog integration, and seamless debug accessibility.
FAQ
What is the maximum operating frequency of the LM3S615-IQN50-C2T?
The LM3S615-IQN50-C2T operates at a maximum system clock frequency of 50 MHz, derived from its internal PLL or external crystal oscillator. This speed is fully supported across its entire industrial temperature range (–40°C to +85°C) and enables sub-microsecond interrupt response for time-critical motor control tasks. The LM3S615-IQN50-C2T maintains timing compliance under worst-case voltage and temperature conditions per TI's production data specifications.
Does the LM3S615-IQN50-C2T support hardware debug during real-time operation?
Yes, the LM3S615-IQN50-C2T integrates a JTAG/SWD debug interface compliant with ARM CoreSight standards, supporting non-intrusive breakpoints, watchpoints, and real-time SWO trace output. This allows live inspection of registers and memory while the LM3S615-IQN50-C2T continues executing motor control loops - critical for validating timing behavior without disrupting system stability.
What ADC capabilities does the LM3S615-IQN50-C2T provide for current sensing?
The LM3S615-IQN50-C2T includes an 8-channel, 12-bit SAR ADC with 1 MSPS sampling rate, hardware averaging (up to 64 samples), and dedicated internal reference. For current sensing, it supports differential input mode and can be synchronized to PWM events via trigger inputs - enabling accurate shunt-based measurements with minimal software overhead. These features are fully documented in the LM3S615-IQN50-C2T datasheet sections 10.3 and 10.4.
Is the LM3S615-IQN50-C2T pin-compatible with other LM3S devices?
No, the LM3S615-IQN50-C2T is not universally pin-compatible across the LM3S family. While it shares the 100-pin LQFP package with several variants (e.g., LM3S6965), pin assignments for peripherals like SSI, I²C, and PWM differ significantly between models. Board layout must be verified against the LM3S615-IQN50-C2T-specific pin diagram (Section 16 of its datasheet) and signal tables (Section 17).
What development tools are officially supported for the LM3S615-IQN50-C2T?
Texas Instruments officially supports the LM3S615-IQN50-C2T with Keil MDK-ARM, IAR Embedded Workbench, and TI's Code Composer Studio v5.x and earlier. StellarisWare peripheral driver library and example projects - including motor control and communication stacks - are provided free of charge and validated for the LM3S615-IQN50-C2T. These tools remain accessible via TI's archived Stellaris resources portal.
LM3S615-IQN50-C2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 600
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S615-IQN50-C2T FAQ
1.How can I place an order for LM3S615-IQN50-C2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S615-IQN50-C2T 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 LM3S615-IQN50-C2T reliable?
The price and inventory of LM3S615-IQN50-C2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3S615-IQN50-C2T is usually 5 days.
3.What payment methods are accepted for LM3S615-IQN50-C2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S615-IQN50-C2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S615-IQN50-C2T?
LM3S615-IQN50-C2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S615-IQN50-C2T 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 LM3S615-IQN50-C2T?
For technical support, including LM3S615-IQN50-C2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S615-IQN50-C2T requirements.
6.How does Aetrix verify that LM3S615-IQN50-C2T is sourced from the original manufacturer or authorized distributors?
All LM3S615-IQN50-C2T 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 LM3S615-IQN50-C2T meets industry standards.
7.What is the process for return or replacement of LM3S615-IQN50-C2T?
All LM3S615-IQN50-C2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S615-IQN50-C2T, 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 LM3S615-IQN50-C2T part is unused and in its original packaging.
Return procedure for LM3S615-IQN50-C2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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