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Texas Instruments LM3S800-IQN50-C2T
- Part No.:
- LM3S800-IQN50-C2T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LM3S800-IQN50-C2T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,036
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Product details
Overview
LM3S800-IQN50-C2T from Texas Instruments is a 32-bit ARM Cortex-M3 microcontroller with 64 KB flash, 24 KB SRAM, and integrated peripherals including UART, I²C, SSI, GPIO, timers, and analog comparators; operates at up to 50 MHz and targets real-time embedded control in industrial and motor applications.
For engineers reviewing the LM3S800-IQN50-C2T datasheet, LM3S800-IQN50-C2T pinout, LM3S800-IQN50-C2T application, or LM3S800-IQN50-C2T equivalent, key selection considerations include its 50 MHz CPU clock, 64 KB on-chip flash with write/erase protection, 24 KB SRAM, 48-pin LQFP package, and support for JTAG/SWD debug interfaces.
Technical Context
The LM3S800-IQN50-C2T implements the ARM Cortex-M3 core with Thumb-2 instruction set, NVIC interrupt controller, SysTick timer, and MPU for memory protection. It integrates a system-level clock tree with PLL-based clock generation and supports multiple low-power sleep modes controlled via the SCB.
Peripherals include two UARTs, one I²C master/slave interface, one SSI (SPI-compatible) port, eight general-purpose timers (including RTC-capable), four analog comparators, and up to 39 GPIO pins with programmable drive strength and slew rate control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, Thumb-2 instruction set, 50 MHz max operation |
| Flash Memory | 64 KB on-chip flash with sector erase, write protection bits, and 100k-cycle endurance |
| SRAM | 24 KB on-chip SRAM, zero-wait-state access at full speed |
| Operating Voltage | 3.3 V nominal supply, with internal LDO regulator supporting 2.25–3.63 V input range |
| Temperature Range | –40°C to +85°C industrial grade operation |
| Package | 48-pin LQFP (7 mm × 7 mm), lead-free and RoHS-compliant |
| Debug Interface | JTAG and SWD support via dedicated TMS/TCK/TDI/TDO/SWDIO/SWCLK pins |
Pinout & Package
LM3S800-IQN50-C2T is housed in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per TI SPMS145I datasheet Section 14 (Pin Diagram) and Section 15 (Signal Tables).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Digital core (VDDC), analog (VDDA), and I/O (VDD) rails; require separate decoupling |
| GND, GNDA, GNDC | Ground returns | Analog (GNDA), core (GNDC), and I/O (GND) grounds must be connected with low-inductance paths |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO ports | 39 total GPIO pins with configurable alternate functions (UART, I²C, SSI, timer I/O) |
| PA0–PA7 | Peripheral function pins | Includes UART0 RX/TX, I²C0 SCL/SDA, SSI0 CLK/FSS/ Rx/Tx, and comparator inputs |
| TCK, TMS, TDI, TDO | JTAG debug interface | Supports boundary scan, flash programming, and real-time debugging via standard JTAG chain |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M3 core | Hardware division, single-cycle MAC, nested vectored interrupt handling with 8 priority levels |
| Flash memory security | Programmable flash protection bits prevent unauthorized read/write/erase of code regions |
| Flexible clocking | Internal precision oscillator (±1% over temp), PLL support for 50 MHz system clock from external crystal or oscillator |
| Analog comparator subsystem | Four independent comparators with internal voltage reference and interrupt capability |
| Low-power operation | Three sleep modes (sleep/deep-sleep/power-down) with wake-up via GPIO, timer, or peripheral interrupt |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors using PWM outputs and quadrature encoder inputs. IC Role / Device Role / Timing Role: Real-time execution engine managing commutation timing, current sensing, and fault response within <1 µs latency. Use Value: On-chip comparators enable fast overcurrent detection; 50 MHz CPU ensures deterministic loop execution at 20 kHz update rates. | Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and motion data. IC Role / Device Role / Timing Role: System controller coordinating I²C sensor reads, UART logging, and low-power sleep scheduling. Use Value: Deep-sleep mode draws <10 µA; integrated 24 KB SRAM retains context across wake cycles without external memory. |
| PLC I/O Module | Medical Diagnostic Equipment |
Use Scenario: Digital input/output expansion module for programmable logic controllers with isolation and ESD protection. IC Role / Device Role / Timing Role: Peripheral interface manager handling GPIO state scanning, debounce, and serial communication to main controller. Use Value: 39 GPIO pins support configurable pull-up/down and slew-rate control for robust industrial signal acquisition. | Use Scenario: Portable ultrasound front-end controller managing time-of-flight calculations and display interface timing. IC Role / Device Role / Timing Role: Timing-critical subsystem synchronizing ADC sampling, digital beamforming, and SPI display updates. Use Value: Dedicated SysTick timer and NVIC ensure sub-microsecond interrupt latency for precise echo timing alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3S101-IQN50-C2T | Same Cortex-M3 core, 8 KB flash, 4 KB SRAM, identical 48-pin LQFP package and peripheral set | Targeted at simpler control tasks where code footprint <16 KB and RAM <8 KB suffice | Select when cost-sensitive designs do not require full 64 KB flash or 24 KB SRAM headroom |
| TM4C123GH6PM | Successor family with 80 MHz CPU, 256 KB flash, 32 KB SRAM, enhanced analog features, and same pin-compatible footprint | Required for higher-performance applications needing USB, CAN, or advanced ADC capabilities | Choose for new designs requiring extended lifecycle support, enhanced peripherals, or migration path from LM3S series |
Compared with LM3S800-IQN50-C2T, LM3S101-IQN50-C2T offers reduced memory but lower cost and identical footprint, while TM4C123GH6PM delivers higher performance, expanded memory, and modern peripheral sets - both serve distinct design stages: legacy optimization versus forward-looking scalability.
Availability
LM3S800-IQN50-C2T is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and medical diagnostic equipment requiring stable component supply and long-term obsolescence management.
Supply support for LM3S800-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 high-reliability microcontrollers and industrial-grade ICs.
The Stellaris LM3S series was designed specifically for cost-sensitive, real-time embedded control applications demanding deterministic interrupt response, integrated analog peripherals, and robust industrial operating conditions.
FAQ
What is the maximum operating frequency of the LM3S800-IQN50-C2T?
The LM3S800-IQN50-C2T operates at a maximum system clock frequency of 50 MHz, achieved via its internal PLL driven by an external crystal or oscillator. This frequency is specified across the full industrial temperature range (–40°C to +85°C) and 3.3 V supply, enabling deterministic real-time execution for time-critical control loops.
Does the LM3S800-IQN50-C2T support in-system programming?
Yes, the LM3S800-IQN50-C2T supports in-system programming via its built-in Serial Flash Loader (SFL), accessible through UART or SSI interfaces. The device also allows full flash reprogramming using JTAG or SWD debug tools without requiring external hardware programmers.
What debug interfaces does the LM3S800-IQN50-C2T provide?
The LM3S800-IQN50-C2T provides both JTAG and SWD (Serial Wire Debug) interfaces for development and production programming. Pins TCK, TMS, TDI, and TDO support IEEE 1149.1-compliant boundary scan and debug, while SWDIO and SWCLK enable compact two-wire debugging.
Is the LM3S800-IQN50-C2T pin-compatible with other Stellaris devices?
The LM3S800-IQN50-C2T uses a 48-pin LQFP package shared with several other LM3S devices (e.g., LM3S101, LM3S3748), but pin functions differ across variants. While physical footprint matches, signal mapping and peripheral availability vary - direct replacement requires verification of GPIO alternate function allocation and peripheral register compatibility.
What power management features does the LM3S800-IQN50-C2T offer?
The LM3S800-IQN50-C2T supports three low-power modes: Sleep (CPU halted, peripherals active), Deep-Sleep (system clock gated, SRAM retained), and Power-Down (all clocks stopped, only reset and certain interrupts wake). Current draw in Deep-Sleep mode is typically under 10 µA, enabling battery-operated applications.
LM3S800-IQN50-C2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- Stellaris® ARM® Cortex®-M3S 800
- 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:
- 64KB (64K 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:
LM3S800-IQN50-C2T FAQ
1.How can I place an order for LM3S800-IQN50-C2T through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3S800-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 LM3S800-IQN50-C2T reliable?
The price and inventory of LM3S800-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 LM3S800-IQN50-C2T is usually 5 days.
3.What payment methods are accepted for LM3S800-IQN50-C2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3S800-IQN50-C2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3S800-IQN50-C2T?
LM3S800-IQN50-C2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3S800-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 LM3S800-IQN50-C2T?
For technical support, including LM3S800-IQN50-C2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3S800-IQN50-C2T requirements.
6.How does Aetrix verify that LM3S800-IQN50-C2T is sourced from the original manufacturer or authorized distributors?
All LM3S800-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 LM3S800-IQN50-C2T meets industry standards.
7.What is the process for return or replacement of LM3S800-IQN50-C2T?
All LM3S800-IQN50-C2T units undergo pre-shipment inspection (PSI). If there is an issue with LM3S800-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 LM3S800-IQN50-C2T part is unused and in its original packaging.
Return procedure for LM3S800-IQN50-C2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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