LM3S9B81-IQC80-C3 Texas Instruments Integrated Circuit (Other) In Stock
The LM3S9B81-IQC80-C3 is a 32-bit ARM Cortex-M3 microcontroller running at 80 MHz with integrated ADC, DMA, and 65 I/O lines, packaged in a 100-pin LQFP for industrial and connectivity applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S9B81-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
What are the key features of LM3S9B81-IQC80-C3?
- 32-bit ARM Cortex-M3 core at up to 80 MHz delivering strong computational performance for embedded control
- 65 configurable I/O lines with integrated DMA for high-throughput peripheral data transfers without CPU intervention
- Integrated ADC channels enabling direct analog sensor acquisition in industrial and IoT system designs
- 100-pin LQFP green/RoHS-compliant package for automated SMT assembly in industrial-grade equipment
What is LM3S9B81-IQC80-C3 used for?
The LM3S9B81-IQC80-C3 is designed for industrial automation, motor control, and networked embedded systems requiring a feature-rich 32-bit ARM microcontroller with abundant I/O and onboard DMA. Its 65 GPIO lines, integrated ADC, and connectivity peripherals make it well-suited for industrial HMI panels, energy monitoring gateways, and factory floor controllers running at extended temperature ranges.
What are the specifications of LM3S9B81-IQC80-C3?
| 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) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 98304 |
| ROM (words) | 262144 |
| 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) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| 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 LM3S9B81-IQC80-C3 datasheet?
LM3S9B81-IQC80-C3 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S9B81-IQC80-C3?
Compatible alternatives and drop-in replacements for LM3S9B81-IQC80-C3:
Frequently Asked Questions
At what clock speed does the LM3S9B81-IQC80-C3 ARM Cortex-M3 core operate?
The LM3S9B81-IQC80-C3 runs its ARM Cortex-M3 core at up to 80 MHz, providing approximately 100 DMIPS of processing throughput. This performance level supports real-time control loops, communication protocol stacks such as TCP/IP and CAN, and signal processing tasks within a single 32-bit microcontroller.
How many I/O lines does the LM3S9B81-IQC80-C3 provide for peripheral interfacing?
The LM3S9B81-IQC80-C3 offers 65 general-purpose I/O lines, configurable for GPIO, UART, SPI, I2C, PWM, and analog functions. This generous I/O count makes it suitable for industrial control panels, multi-axis motor controllers, and communication gateways requiring simultaneous connection to sensors, actuators, and network interfaces.
Does the LM3S9B81-IQC80-C3 include DMA, and what performance benefit does this provide?
Yes. The LM3S9B81-IQC80-C3 includes a DMA controller that transfers data between peripherals and memory at up to 80 MHz bus speed without CPU involvement. This frees the ARM Cortex-M3 core for computation while DMA handles continuous ADC sample collection, UART receive buffering, or Ethernet data transfer at multi-megabyte per second rates.
What package does the LM3S9B81-IQC80-C3 use, and is it compatible with standard reflow assembly?
The LM3S9B81-IQC80-C3 is housed in a 100-pin LQFP (S-PQFP-G100) with a 1.40 mm height profile and 0.5 mm pin pitch. This package is fully compatible with standard SMT reflow soldering, and the RoHS-compliant green compound meets modern environmental regulations for industrial and consumer electronics manufacturing.
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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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