LM3S2793-IQC80-C3T Texas Instruments Integrated Circuit (Other) In Stock
The LM3S2793-IQC80-C3T is a 32-bit ARM Cortex-M3 Stellaris microcontroller from Texas Instruments running at up to 80 MHz. It provides 67 GPIO lines, integrated ADC, Ethernet MAC/PHY, CAN, and USB interfaces in a 100-pin LQFP package. Suitable for industrial connectivity and embedded networking applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S2793-IQC80-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 LM3S2793-IQC80-C3T?
- 32-bit ARM Cortex-M3 core at up to 80 MHz delivering 100 DMIPS for real-time control tasks
- Integrated Ethernet MAC and PHY enabling direct network connectivity without external Ethernet ICs
- 67 GPIO lines with flexible multiplexing for rich peripheral interfacing in industrial applications
- On-chip 10/12-bit ADC, CAN 2.0, and full-speed USB OTG supporting multi-protocol embedded systems
- 100-pin LQFP package (14x14 mm) offering high pin count for complex connectivity in compact footprint
What is LM3S2793-IQC80-C3T used for?
The LM3S2793-IQC80-C3T is designed for industrial automation, building control, and embedded networking equipment that requires simultaneous Ethernet, CAN bus, and USB connectivity. Its 80 MHz Cortex-M3 core and 67 GPIO lines support complex motor control, data acquisition, and protocol bridging applications. The device is also used in smart energy meters, HVAC controllers, and test instruments requiring real-time processing with deterministic response times.
What are the specifications of LM3S2793-IQC80-C3T?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | NO |
| Clock Frequency-Max | 0.032MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| 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) | 65536 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 2.75V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 2.5V |
| 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 |
| 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 LM3S2793-IQC80-C3T datasheet?
LM3S2793-IQC80-C3T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S2793-IQC80-C3T?
Compatible alternatives and drop-in replacements for LM3S2793-IQC80-C3T:
Frequently Asked Questions
What communication interfaces does LM3S2793-IQC80-C3T integrate for industrial network connectivity?
LM3S2793-IQC80-C3T integrates a 10/100 Ethernet MAC and PHY, CAN 2.0 controller, full-speed USB OTG, UART, SPI, and I2C interfaces on a single chip. This multi-protocol integration allows a single device to bridge industrial CAN networks with Ethernet-based SCADA systems, eliminating multiple external communication ICs and reducing BOM cost and board area.
How does running the LM3S2793 at 80 MHz compare to a 48 MHz Cortex-M0 in a real-time motor control loop?
At 80 MHz with the Cortex-M3 pipeline, LM3S2793 delivers approximately 100 DMIPS, executing complex PID control loops in under 10 µs per iteration. A 48 MHz Cortex-M0 provides roughly 48 DMIPS, which may extend the control loop to 20 µs or more. For servo drives requiring update rates above 20 kHz, the LM3S2793's higher throughput provides necessary computational headroom.
What package does LM3S2793-IQC80-C3T use and how many GPIO pins are accessible?
The device comes in a 100-pin LQFP package (JESD-30 S-PQFP-G100) measuring 14x14 mm with 0.5 mm pin pitch. Of the 100 pins, 67 are configurable GPIO lines that support multiple peripheral functions through multiplexing, giving designers sufficient I/O for complex industrial panels, keypad interfaces, and multi-channel sensor connectivity without external I/O expanders.
For a smart energy meter design, which on-chip analog features of LM3S2793-IQC80-C3T are most relevant?
The integrated ADC supports 10-bit and 12-bit conversion modes with multiple sequencers, enabling direct sampling of current and voltage signals from sense resistors or current transformers at rates up to 1 MSPS. Combined with the on-chip comparators and timer modules, the LM3S2793 can perform real-time power calculation and zero-crossing detection without external analog front-end ICs, simplifying energy meter hardware design.
When is LM3S2793-IQC80-C3T a better fit than a lower-cost LM3S1000 series device for an embedded gateway?
LM3S2793 adds integrated Ethernet MAC/PHY and USB OTG compared to LM3S1000 series devices that lack on-chip Ethernet. For an embedded gateway bridging a CAN field bus to an Ethernet network, LM3S2793 eliminates an external Ethernet PHY IC (typically $2-4), saving board space and reducing interface latency from 8-bit parallel bus cycles to on-chip register access, which is critical for deterministic gateway throughput above 10 Mbps.
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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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