LM3S1R21-IQC80-C3T Texas Instruments In Stock
LM3S1R21-IQC80-C3T is a 32-bit ARM Cortex-M3 microcontroller by Texas Instruments, featuring 256KB Flash, 64KB SRAM, and 80MHz operation. Key specs: 80MHz CPU, 256KB Flash, 64KB SRAM, multiple UART/SPI/I2C interfaces. Available for 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
- 32-bit ARM Cortex-M3 core running at up to 80MHz for high-performance embedded applications
- 256KB on-chip Flash and 64KB SRAM providing ample program and data storage
- Rich peripheral set including UART, SPI, I2C, GPIO, and timers for flexible connectivity
- IQC80 package (QFP-80) offering a balance of pin count and compact board footprint
- Wide operating voltage and industrial-grade temperature range for robust embedded designs
Applications
The LM3S1R21-IQC80-C3T is well suited for industrial control systems, motor drive applications, and building automation where a capable 32-bit MCU with rich peripherals is required. Its ARM Cortex-M3 architecture and ample memory make it ideal for real-time control, sensor data acquisition, and communication gateway designs. The device also fits consumer electronics and IoT edge nodes that demand low-power operation with reliable peripheral integration.
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 CPU speed and memory configuration of the LM3S1R21-IQC80-C3T?
The LM3S1R21-IQC80-C3T features an ARM Cortex-M3 core running at up to 80MHz, with 256KB of on-chip Flash memory for program storage and 64KB of SRAM for data. This configuration provides sufficient headroom for real-time control firmware and communication stacks in embedded applications.
What package does the LM3S1R21-IQC80-C3T use and what are its dimensions?
The LM3S1R21-IQC80-C3T comes in an IQC80 package, which is an 80-pin QFP (Quad Flat Package). This package offers a good balance between pin availability for peripherals and a manageable PCB footprint, making it suitable for space-constrained industrial and embedded board designs.
What are the typical applications for the LM3S1R21-IQC80-C3T?
The LM3S1R21-IQC80-C3T is commonly used in industrial automation, motor control, building management systems, and IoT gateway designs. Its 80MHz Cortex-M3 core combined with multiple communication interfaces (UART, SPI, I2C) makes it versatile for sensor integration, real-time control loops, and protocol bridging tasks.
Is the LM3S1R21-IQC80-C3T compatible with the TI Stellaris/Tiva software ecosystem?
Yes, the LM3S1R21-IQC80-C3T is part of the Texas Instruments Stellaris microcontroller family and is supported by TI's StellarisWare peripheral driver library and development tools. It is also compatible with popular ARM toolchains such as Keil MDK and IAR Embedded Workbench, simplifying firmware development and migration.
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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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