LM3S5B91-IQC80-C1T Texas Instruments Integrated Circuit (Other) In Stock
The LM3S5B91-IQC80-C1T is a 32-bit ARM Cortex-M3 microcontroller from Texas Instruments, featuring 16 MHz clock, 72 I/O lines, DMA, ADC, and PWM channels in a 100-pin LQFP package for embedded industrial applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S5B91-IQC80-C1T Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3S5B91-IQC80-C1T?
- 32-bit ARM Cortex-M3 core running at 16 MHz with integrated DMA controller for efficient data transfers in real-time embedded control applications
- 72 GPIO lines plus on-chip ADC and PWM channels enable direct interface to sensors, actuators, and motor control peripherals without external ICs
- 100-pin LQFP (PQFP-100) package provides ample I/O density for industrial control, motor drive, and communication gateway designs
What is LM3S5B91-IQC80-C1T used for?
The LM3S5B91-IQC80-C1T is well-suited for embedded industrial control systems, motor drive controllers, and building automation equipment that require a 32-bit processor with rich peripheral integration. Its 72 I/O lines, DMA, and PWM support make it a practical choice for multi-axis servo controllers, industrial gateways, and sensor fusion platforms.
What are the specifications of LM3S5B91-IQC80-C1T?
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 16MHz |
| 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 |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 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 |
| 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 |
Where can I find the LM3S5B91-IQC80-C1T datasheet?
LM3S5B91-IQC80-C1T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S5B91-IQC80-C1T?
Compatible alternatives and drop-in replacements for LM3S5B91-IQC80-C1T:
Frequently Asked Questions
What is the maximum clock frequency of the LM3S5B91-IQC80-C1T, and how many GPIO pins does it expose?
The LM3S5B91-IQC80-C1T operates at up to 16 MHz and provides 72 programmable I/O lines, giving embedded designers ample GPIO for direct interfacing to sensors, relays, keypads, and communication peripherals without requiring external I/O expanders.
Does the LM3S5B91-IQC80-C1T include DMA support, and what benefit does this provide in data-intensive industrial designs?
Yes, the LM3S5B91-IQC80-C1T integrates a DMA controller that allows peripheral data transfers to proceed without CPU intervention, freeing the 32-bit ARM Cortex-M3 core to run control algorithms at full 16 MHz throughput while DMA handles UART, SPI, or ADC buffer fills in parallel.
Which package does the LM3S5B91-IQC80-C1T use, and how does it affect PCB layout complexity for a motor control application?
The LM3S5B91-IQC80-C1T comes in a 100-pin LQFP (PQFP-100) package with 0.5 mm pitch, offering all 72 I/O lines and power pins on a standard footprint that is compatible with typical two-layer to four-layer PCBs used in motor drive and industrial control boards.
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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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