LM3S9792-IQC80-C1 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S9792-IQC80-C1 is a 32-bit ARM Cortex-M3 microcontroller with 256 KB flash, 96 KB SRAM, and 65 GPIO lines at up to 80 MHz. Features integrated Ethernet MAC/PHY, USB OTG, CAN, and 12-bit ADC. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S9792-IQC80-C1 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
Key Features
- 32-bit ARM Cortex-M3 core running up to 80 MHz for high-performance embedded control
- Integrated 10/100 Ethernet MAC/PHY enabling direct network connectivity without external chips
- USB OTG and CAN interface support for versatile industrial and consumer connectivity
- 65 GPIO lines with 12-bit ADC and DMA controller for mixed-signal system designs
Applications
The LM3S9792-IQC80-C1 is well suited for industrial control systems that require Ethernet connectivity alongside local field-bus protocols such as CAN. It fits embedded network appliances, building automation gateways, and motor-drive controllers where 80 MHz Cortex-M3 throughput and 256 KB flash provide ample headroom for real-time firmware. Its USB OTG capability also makes it a strong choice for portable medical devices and data-logging instruments needing direct PC connectivity.
Specifications
| 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 | 65 |
| 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) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| RAM (bytes) | 65536 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| 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) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.25 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3S9792-IQC80-C1:
Frequently Asked Questions
What is the maximum clock frequency of the LM3S9792-IQC80-C1, and how does it affect real-time control tasks?
The LM3S9792-IQC80-C1 operates at up to 80 MHz with a 32-bit ARM Cortex-M3 core, delivering approximately 100 DMIPS. This clock speed supports deterministic interrupt latency under 12 clock cycles, making it suitable for real-time motor-control loops and PID regulation at sampling rates above 10 kHz.
Which communication interfaces are available on the LM3S9792-IQC80-C1 for industrial network designs?
The device integrates a 10/100 Ethernet MAC/PHY, USB OTG, 2 CAN 2.0B controllers, 3 UARTs, 2 SPI, and 2 I2C interfaces. This combination allows a single chip to bridge Ethernet to CAN field buses, reducing BOM cost by eliminating external network controllers in building automation or factory automation nodes.
How much on-chip flash and SRAM does the LM3S9792-IQC80-C1 provide, and is it enough for a TCP/IP stack?
The LM3S9792-IQC80-C1 includes 256 KB of flash program memory and 96 KB of SRAM. A lightweight LwIP TCP/IP stack typically consumes around 40 KB of flash and 20 KB of RAM, leaving ample space for application firmware, FAT file system buffers, and CAN protocol handling within the available memory budget.
What package does LM3S9792-IQC80-C1 use and what are its thermal specifications for industrial enclosures?
It is housed in a 100-pin LQFP package (10 x 10 mm body) with an exposed thermal pad. The operating temperature range is -40°C to 85°C, and the junction-to-ambient thermal resistance is approximately 30°C/W, making it reliable in fanless industrial enclosures running at elevated ambient temperatures up to 85°C.
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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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