LM3S9781-IQC80-C3T Texas Instruments In Stock
LM3S9781-IQC80-C3T is a 32-bit ARM Cortex-M3 microcontroller by Texas Instruments featuring 256 KB Flash, 96 KB SRAM, and 80 MHz operation. Key specs: 80 MHz CPU, USB OTG, 10/100 Ethernet MAC with integrated PHY, and rich peripheral set. From competitive pricing, in stock 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 delivering high computational performance for embedded control applications
- Integrated 10/100 Ethernet MAC with MII/RMII interface enabling direct network connectivity without external MAC chip
- USB 2.0 Full-Speed OTG controller with on-chip PHY supporting both host and device operation for flexible USB designs
Applications
The LM3S9781-IQC80-C3T is designed for networked embedded control applications requiring both Ethernet connectivity and USB capability in an industrial-grade package. It is widely used in factory automation controllers, building management systems, and industrial HMI devices where reliable wired network communication is essential. The combination of USB OTG and Ethernet makes it equally attractive for data logging equipment, embedded web servers, and protocol gateway designs.
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 CPU core and speed does the LM3S9781-IQC80-C3T use?
The LM3S9781-IQC80-C3T uses an ARM Cortex-M3 processor core operating at up to 80 MHz, delivering 1.25 DMIPS/MHz for efficient real-time embedded processing with low power consumption.
Does the LM3S9781-IQC80-C3T have on-chip Ethernet support?
Yes, the LM3S9781-IQC80-C3T integrates a 10/100 Ethernet MAC with MII and RMII interfaces. This allows the microcontroller to connect directly to an external Ethernet PHY or use an integrated PHY for full network connectivity without additional chips.
What is the Flash and SRAM memory size of the LM3S9781-IQC80-C3T?
The LM3S9781-IQC80-C3T provides 256 KB of on-chip Flash program memory and 96 KB of SRAM for data storage, offering ample space for complex firmware and real-time data buffers in embedded applications.
What package does the LM3S9781-IQC80-C3T come in?
The LM3S9781-IQC80-C3T is available in an 80-pin LQFP (Low-profile Quad Flat Package) denoted by the IQC80 suffix, which provides a compact surface-mount footprint suitable for space-constrained PCB designs.
What are the main applications for the LM3S9781-IQC80-C3T?
Typical applications include industrial Ethernet controllers, embedded web servers, building automation, factory automation gateways, USB-to-Ethernet bridge devices, and any embedded system requiring concurrent USB and Ethernet communication with a 32-bit ARM processor.
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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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