LM3S9781-IQC80-C3 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S9781 is a 32-bit ARM Cortex-M3 microcontroller featuring 80 MHz CPU, 256KB flash, 96KB SRAM, and 65 I/O lines. Supports DMA, ADC, and multiple communication interfaces. Available in QFP-100 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S9781-IQC80-C3 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
- 256KB embedded flash and 96KB SRAM for substantial code and data storage
- 65 GPIO lines with integrated DMA controller and multi-channel ADC for versatile peripheral connectivity
Applications
The LM3S9781 is well-suited for industrial automation, motor control systems, and building automation applications requiring real-time processing. Its integrated DMA channels and extensive I/O support make it ideal for data acquisition systems, embedded networking devices, and human-machine interfaces. The 32-bit Cortex-M3 architecture enables complex control algorithms in automotive and consumer electronics designs.
Specifications
| Pbfree Code | Yes |
| 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, RISC |
| 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 LM3S9781-IQC80-C3:
Frequently Asked Questions
What is the maximum clock frequency of the LM3S9781?
The LM3S9781 operates at a maximum clock frequency of 80 MHz with its 32-bit ARM Cortex-M3 core, providing substantial processing power for real-time embedded control applications requiring fast response times.
How much flash and SRAM memory does the LM3S9781 include?
The LM3S9781 features 256KB of embedded flash memory for program storage and 96KB of SRAM for data storage, offering ample memory for complex firmware implementations in industrial and consumer applications.
What package is the LM3S9781-IQC80-C3 available in?
The LM3S9781-IQC80-C3 is offered in a 100-pin LQFP (S-PQFP-G100) package, providing 65 I/O lines and ease of PCB mounting for space-constrained designs.
Does the LM3S9781 support DMA and ADC functionality?
Yes, the LM3S9781 integrates a DMA controller and multi-channel ADC, enabling efficient data transfers without CPU intervention and analog signal acquisition for sensor interfaces and measurement applications.
What are common alternatives to the LM3S9781 microcontroller?
Common alternatives include other Stellaris LM3S series devices from Texas Instruments, as well as STM32F1 series from STMicroelectronics, offering similar ARM Cortex-M3 cores with comparable performance and peripheral sets.
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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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