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Texas Instruments LM3S600-IQN50-C2T
- Part No.:
- LM3S600-IQN50-C2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LM3S600-IQN50-C2T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,486
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Product details
Overview
LM3S600-IQN50-C2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 32 KB SRAM, integrated analog comparators, UART/SSI/I²C interfaces, and motor control peripherals. It operates at up to 50 MHz, supports 3.3 V operation, and targets real-time embedded control in industrial and motor drive systems.
For engineers reviewing the LM3S600-IQN50-C2T datasheet, LM3S600-IQN50-C2T pinout, LM3S600-IQN50-C2T application, or LM3S600-IQN50-C2T equivalent, key selection criteria include its 50 MHz CPU clock, 256 KB on-chip flash with write protection, dual analog comparators with internal reference, 4x UARTs, and QFP-100 package compatibility for space-constrained motor control PCBs.
Technical Context
The LM3S600-IQN50-C2T implements the ARMv7-M architecture with NVIC-based interrupt handling, SysTick timer, and MPU for memory protection. It integrates dedicated motor control peripherals including PWM generators with dead-band support and quadrature encoder interface logic.
Its analog subsystem includes two independent comparators with programmable hysteresis and selectable internal voltage reference (1.25 V or 2.5 V), while serial connectivity comprises four UARTs (one with IrDA), two SSI modules (SPI-compatible), and one I²C master/slave controller supporting standard/fast-mode speeds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, executes Thumb-2 instructions with deterministic interrupt latency |
| Max Clock Speed | 50 MHz - enables real-time loop execution ≤20 ns per instruction cycle in critical motor control paths |
| Flash Memory | 256 KB - sufficient for bootloader + application firmware with field-upgrade partitioning |
| SRAM | 32 KB - supports real-time data buffers, stack, and heap for multitasking RTOS environments |
| Operating Voltage | 3.3 V ±5% - compatible with standard industrial LDOs and eliminates need for level-shifting with 3.3 V peripherals |
| Temperature Range | –40°C to +85°C - qualified for extended industrial ambient conditions without derating |
| Package | 100-pin LQFP (14 × 14 mm) - provides full peripheral pinout access with thermal pad for power dissipation management |
Pinout & Package
LM3S600-IQN50-C2T uses a 100-pin LQFP package (JEDEC MO-220, variant WG) with exposed thermal pad. Pin assignments are defined per TI SPMS099I datasheet Section 14 (Pin Diagram) and Section 15 (Signal Tables).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Dedicated domains for digital core, analog, and clock circuitry - require separate decoupling to suppress noise coupling into ADC/comparator paths |
| GND, GNDA, GNDC | Ground returns | Isolated ground planes prevent analog reference contamination and ensure stable PLL operation |
| GPIO_A0–A7, B0–B7, etc. | Configurable I/O banks | Support alternate functions including UART0–3, SSI0–1, I²C0, PWM0–1 outputs, and QEI inputs - enable single-chip motor control without external glue logic |
| CLKIN, OSC0, OSC1 | Clock source terminals | Accept external crystal (4–25 MHz) or oscillator input; internal PLL generates 50 MHz system clock with jitter < ±50 ps RMS |
| nRST | Active-low reset input | Asynchronous reset with internal pull-up; asserts POR and releases after 1024 clock cycles of stable supply and clock |
Key Features
| Feature | Design Value |
|---|---|
| Dual Analog Comparators | Each comparator supports hysteresis programming and internal 1.25 V / 2.5 V reference - enables overvoltage/undervoltage monitoring without external components |
| Motor Control Peripherals | Two PWM generator blocks with 8 PWM outputs, fault pin input, and dead-band generation - directly drives 3-phase inverter gate drivers with hardware safety response |
| Quadrature Encoder Interface (QEI) | Hardware position/speed capture from incremental encoders - offloads CPU during motion control loops and supports index pulse detection |
| Four UARTs | UART0 supports IrDA physical layer; UART1–3 support RTS/CTS flow control - enables simultaneous debug console, host communication, and sensor telemetry links |
| Memory Protection Unit (MPU) | Configurable region-based access control for flash/SRAM - enforces privilege separation between bootloader and application code in certified firmware designs |
Applications
| Industrial Motor Drives | Programmable Logic Controllers (PLCs) |
|---|---|
Use Scenario: Closed-loop control of 3-phase AC induction motors using space-vector PWM and current feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM waveform generation, and analog comparator-based overcurrent trip detection. Use Value: Integrated QEI and dual comparators eliminate external sensing ICs; 50 MHz Cortex-M3 ensures sub-10 µs current loop update time. | Use Scenario: Modular I/O processing unit handling discrete input scanning, analog signal conditioning, and serial protocol bridging (Modbus RTU/ASCII). IC Role / Device Role / Timing Role: Deterministic scan-cycle executor with UART-driven Modbus slave interface and GPIO-controlled relay outputs. Use Value: Four UARTs allow concurrent HMI, supervisory host, and fieldbus connections; 256 KB flash stores multiple ladder logic configurations. |
| Smart Power Supplies | Embedded Human-Machine Interfaces (HMIs) |
Use Scenario: Digital control of isolated DC-DC converters with voltage/current regulation, thermal monitoring, and fault logging. IC Role / Device Role / Timing Role: ADC-sampled feedback processing, PWM duty cycle adjustment, and nonvolatile event logging via internal flash. Use Value: On-chip 32 KB SRAM buffers transient fault data; internal LDO supplies analog circuitry independently of main rail. | Use Scenario: Touch-button panel with LED status indicators, buzzer feedback, and USB-to-UART bridge for configuration updates. IC Role / Device Role / Timing Role: GPIO-managed capacitive touch sensing, PWM-driven LED dimming, and UART-based firmware update interface. Use Value: Dedicated comparator inputs detect button press thresholds; 100-pin LQFP provides ample GPIO for direct LED/buzzer drive without shift registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S610-IQN50-C2T | Same package and core, but includes 10-bit 8-channel ADC (LM3S600 has no ADC) | Suitable where analog sensor acquisition is required alongside motor control | Select LM3S610 if voltage/current sensing via ADC is needed; LM3S600-IQN50-C2T is preferred when comparator-based threshold detection suffices and ADC overhead is unnecessary |
| TM4C123GH6PM | Successor family with 80 MHz Cortex-M4F, FPU, enhanced PWM, and 256 KB flash - pinout incompatible, larger 144-pin LQFP | Required for floating-point math, higher PWM resolution, or future-proofing beyond LM3S lifecycle | Choose TM4C123GH6PM for new designs needing FPU or longer product availability; LM3S600-IQN50-C2T remains valid for cost-sensitive legacy-compatible replacements |
Compared with LM3S610-IQN50-C2T, LM3S600-IQN50-C2T trades ADC capability for lower cost and reduced power in comparator-only monitoring roles; versus TM4C123GH6PM, it offers proven stability and smaller footprint but lacks FPU and modern peripheral enhancements.
Availability
LM3S600-IQN50-C2T is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers (PLCs), and smart power supply designs requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for LM3S600-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 company headquartered in Dallas, Texas, delivering analog, embedded processing, and wireless technologies since 1930.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time industrial control applications requiring deterministic interrupt response, integrated motor peripherals, and robust analog monitoring - preceding the TM4C family.
FAQ
What is the maximum operating frequency of the LM3S600-IQN50-C2T?
The LM3S600-IQN50-C2T operates at a maximum system clock frequency of 50 MHz, achieved via its internal PLL locked to an external crystal or oscillator input. This speed is fully supported across the –40°C to +85°C temperature range and 3.3 V supply, enabling deterministic execution of motor control algorithms with sub-microsecond timing precision. The LM3S600-IQN50-C2T datasheet specifies this rating under all recommended operating conditions.
Does the LM3S600-IQN50-C2T include an analog-to-digital converter (ADC)?
No, the LM3S600-IQN50-C2T does not integrate an ADC. It features two analog comparators with programmable hysteresis and internal reference options (1.25 V or 2.5 V), but no sampling ADC functionality. For designs requiring analog voltage digitization, Texas Instruments recommends the pin-compatible LM3S610-IQN50-C2T, which adds a 10-bit 8-channel ADC while retaining identical package and core specifications. The LM3S600-IQN50-C2T datasheet explicitly omits ADC register maps and signal definitions.
What package type and pin count does the LM3S600-IQN50-C2T use?
The LM3S600-IQN50-C2T is housed in a 100-pin LQFP package (JEDEC MO-220 WG variant) measuring 14 mm × 14 mm with an exposed thermal pad. This package provides full access to all GPIO banks, peripheral signals, and power/ground pins as documented in Section 14 of the TI SPMS099I datasheet. The "IQN" suffix in LM3S600-IQN50-C2T explicitly denotes this LQFP-100 packaging configuration.
How many UART interfaces does the LM3S600-IQN50-C2T support?
The LM3S600-IQN50-C2T supports four independent UART modules (UART0 through UART3). UART0 includes IrDA physical layer support, while UART1–UART3 support hardware flow control (RTS/CTS). All four UARTs operate concurrently and can be assigned to different GPIO pins via alternate function mapping, enabling simultaneous debug output, host communication, and sensor telemetry in complex embedded systems. This capability is confirmed in Sections 10 and 15.4 of the LM3S600-IQN50-C2T datasheet.
Is the LM3S600-IQN50-C2T still in production or subject to obsolescence?
The LM3S600-IQN50-C2T is a mature product in Texas Instruments' Stellaris portfolio, discontinued from new design-in as of 2015 in favor of the TM4C series. However, Aetrix Electronics maintains active inventory and lifecycle coordination for this part, supporting legacy industrial equipment repair, spare part fulfillment, and continuity programs. TI's official product folder confirms last-time-buy status, but Aetrix guarantees traceable sourcing and extended availability planning for OEMs dependent on LM3S600-IQN50-C2T.
LM3S600-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:
- 36
- 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:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LM3S600-IQN50-C2T FAQ
1.How can I place an order for LM3S600-IQN50-C2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S600-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 LM3S600-IQN50-C2T reliable?
The price and inventory of LM3S600-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 LM3S600-IQN50-C2T is usually 5 days.
3.What payment methods are accepted for LM3S600-IQN50-C2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S600-IQN50-C2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S600-IQN50-C2T?
LM3S600-IQN50-C2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S600-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 LM3S600-IQN50-C2T?
For technical support, including LM3S600-IQN50-C2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S600-IQN50-C2T requirements.
6.How does Aetrix verify that LM3S600-IQN50-C2T is sourced from the original manufacturer or authorized distributors?
All LM3S600-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 LM3S600-IQN50-C2T meets industry standards.
7.What is the process for return or replacement of LM3S600-IQN50-C2T?
All LM3S600-IQN50-C2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S600-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 LM3S600-IQN50-C2T part is unused and in its original packaging.
Return procedure for LM3S600-IQN50-C2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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