LM3S5B91-IQC80-C3 Texas Instruments Integrated Circuit (Other) In Stock
The LM3S5B91-IQC80-C3 is a 32-bit ARM Cortex-M3 microcontroller from Texas Instruments' Stellaris family, featuring 72 GPIO lines, ADC, DMA, and PWM channels. It is housed in a 100-pin LQFP package with Pb-free construction for industrial and embedded control applications. RoHS-compliant, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S5B91-IQC80-C3 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°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 with DMA controller and PWM channels enables high-performance real-time control and motor drive applications without external coprocessors
- 72 GPIO lines in a 100-pin LQFP (S-PQFP-G100) package provides extensive peripheral connectivity for complex embedded systems with multiple sensor and actuator interfaces
- Integrated ADC channels with DMA transfer support enables autonomous data acquisition pipelines, reducing CPU overhead in sensor-intensive industrial control applications
- Pb-free and RoHS-compliant construction (JESD-609 e4) ensures suitability for modern embedded designs requiring environmental compliance in regulated global markets
Applications
The LM3S5B91-IQC80-C3 is used in industrial motor control systems, robotics, and factory automation equipment where a 32-bit ARM Cortex-M3 processor with rich peripheral integration—including DMA, ADC, and PWM—is needed for real-time deterministic control. It is also deployed in building automation controllers, HVAC systems, and industrial IoT gateway devices requiring multiple GPIO interfaces and communication peripherals. Its 100-pin LQFP package and wide peripheral set make it well-suited for embedded control boards in medical devices and test and measurement instruments.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 0.032MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G100 |
| Number of I/O Lines | 72 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 1.32V |
| Supply Voltage-Min | 1.08V |
| Supply Voltage-Nom | 1.2V |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3S5B91-IQC80-C3:
Frequently Asked Questions
What CPU core does the LM3S5B91-IQC80-C3 use?
The LM3S5B91-IQC80-C3 is based on the 32-bit ARM Cortex-M3 processor core, part of Texas Instruments' Stellaris microcontroller family, offering deterministic real-time performance with Thumb-2 instruction set efficiency for embedded control applications.
How many GPIO lines does the LM3S5B91-IQC80-C3 provide?
The LM3S5B91-IQC80-C3 provides 72 general-purpose I/O lines, enabling connection to a large number of sensors, actuators, communication interfaces, and control signals in complex embedded system designs.
Does the LM3S5B91-IQC80-C3 include analog and DMA capabilities?
Yes, the LM3S5B91-IQC80-C3 integrates an ADC for analog signal measurement and DMA channels for autonomous peripheral-to-memory data transfers, significantly reducing CPU intervention during data acquisition and communication tasks.
What package does the LM3S5B91-IQC80-C3 use?
The LM3S5B91-IQC80-C3 is housed in a 100-pin LQFP (Low-profile Quad Flat Package, JESD-30 code S-PQFP-G100), a standard SMD package that balances pin density with PCB manufacturability for industrial embedded control boards.
What are typical applications for the LM3S5B91-IQC80-C3?
Typical applications include industrial motor and motion control, building automation systems, HVAC controllers, factory automation PLCs, robotics platforms, embedded IoT gateway devices, and medical instrument control boards requiring a 32-bit real-time microcontroller with rich on-chip peripheral integration.
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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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