LM3S5B91-IQC80-C3TIn StockTexas Instruments
LM3S5B91-IQC80-C3T is a 32-bit ARM Cortex-M3 microcontroller by Texas Instruments, running at up to 80 MHz with 256 KB Flash and 96 KB SRAM. Key specs: USB OTG, Ethernet MAC/PHY, CAN, and advanced motion control peripherals. Available in QFP-100 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ARM Cortex-M3 core running at up to 80 MHz for high-performance embedded control
- Integrated Ethernet MAC/PHY for networked applications without external PHY
- USB 2.0 OTG support enabling both host and device operation
- CAN 2.0 controller for robust industrial communications
- 256 KB Flash and 96 KB SRAM providing ample code and data storage
- Advanced motion control PWM for motor drive applications
Applications
The LM3S5B91-IQC80-C3T is well-suited for industrial automation and motor control systems that require real-time Ethernet connectivity and CAN bus communication. It targets embedded networking appliances, building automation controllers, and smart energy management devices. The integrated USB OTG and rich peripheral set also make it a strong choice for human-machine interface (HMI) panels and portable instrumentation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the core architecture and clock speed of the LM3S5B91-IQC80-C3T?
The LM3S5B91-IQC80-C3T is based on the 32-bit ARM Cortex-M3 architecture and operates at a maximum clock frequency of 80 MHz, delivering high computational throughput for real-time control and networking tasks.
What communication interfaces does the LM3S5B91-IQC80-C3T support?
This microcontroller integrates an Ethernet MAC with on-chip PHY, USB 2.0 OTG, CAN 2.0, multiple UARTs, SSI/SPI, and I2C interfaces, making it suitable for a wide range of industrial and networked embedded applications.
What package type is the LM3S5B91-IQC80-C3T and what are its memory specifications?
The LM3S5B91-IQC80-C3T comes in a 100-pin QFP (LQFP) package. It features 256 KB of on-chip Flash memory for program storage and 96 KB of SRAM for runtime data, providing a solid balance of code density and performance.
What are typical applications for the LM3S5B91-IQC80-C3T?
Typical applications include industrial motor control systems, building automation controllers, smart energy meters, networked sensor nodes, and HMI panels where Ethernet connectivity, CAN bus, and USB are required in a single-chip solution.
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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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