LM3S1811-IQC50-C3T Texas Instruments Integrated Circuit (Other) In Stock
LM3S1811-IQC50-C3T is a 32-bit ARM Cortex-M3 Stellaris microcontroller from Texas Instruments in a 100-pin PQFP package. It runs up to 16 MHz, provides 67 I/O lines, on-chip ADC, DMA channels, and rich communication peripherals. Targeted at industrial control, building automation, and embedded networking designs requiring a real-time capable 32-bit processor.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S1811-IQC50-C3T Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3S1811-IQC50-C3T?
- 32-bit ARM Cortex-M3 core running up to 16 MHz for real-time embedded control
- 67 I/O lines in 100-pin PQFP package for high pin-count system integration
- Integrated ADC and DMA channels reduce CPU overhead in data acquisition tasks
- Stellaris peripheral set includes UART, SSI, I2C, and GPIO with interrupt control
- RoHS-compliant lead-free packaging for green design compliance
What is LM3S1811-IQC50-C3T used for?
LM3S1811-IQC50-C3T is suited for industrial automation controllers, HVAC systems, and access control panels that require a 32-bit processor with abundant I/O and on-chip peripherals. Its 67 I/O lines and multiple serial interfaces support direct connection to sensors, actuators, and communication buses in embedded system designs. The PQFP-100 package also facilitates straightforward PCB layout for mid-complexity control boards.
What are the specifications of LM3S1811-IQC50-C3T?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | NO |
| Clock Frequency-Max | 16MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G100 |
| Number of I/O Lines | 67 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP100,.63SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 32768 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Speed | 50MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.31.00.25 |
Where can I find the LM3S1811-IQC50-C3T datasheet?
LM3S1811-IQC50-C3T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S1811-IQC50-C3T?
Compatible alternatives and drop-in replacements for LM3S1811-IQC50-C3T:
Frequently Asked Questions
How does LM3S1811-IQC50-C3T's 67 I/O lines benefit complex industrial control designs?
LM3S1811-IQC50-C3T provides 67 I/O lines in a 100-pin PQFP package, enabling direct interface to numerous sensors, relays, displays, and communication buses without requiring external I/O expanders. This is especially valuable in building automation and HVAC controllers where 30 to 50 discrete signals need simultaneous monitoring and control.
At 16 MHz maximum clock, is LM3S1811-IQC50-C3T fast enough for real-time motor control loops?
At 16 MHz on a 32-bit ARM Cortex-M3 core, LM3S1811-IQC50-C3T can execute approximately 16 million instructions per second using single-cycle operations. This throughput supports PID control loop periods as short as 50 µs to 100 µs, sufficient for most BLDC and stepper motor speed control applications in industrial equipment.
How does LM3S1811-IQC50-C3T compare to LM3S1601 in I/O count for designs needing more interface pins?
LM3S1811-IQC50-C3T offers 67 I/O lines versus fewer pins on smaller Stellaris variants like LM3S1601, which typically come in 64-pin or 48-pin packages with correspondingly fewer GPIOs. For designs needing more than 50 I/O connections on a single chip at up to 16 MHz, the 100-pin LM3S1811 provides more headroom without requiring a higher-cost or higher-power device.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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