LM3S1651-IQC80-C1 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S1651-IQC80-C1 is a 32-bit ARM Cortex-M3 microcontroller with 67 I/O lines and ADC. It integrates DMA channels and on-chip ROM in a 100-pin LQFP package. Well suited for embedded control applications requiring a full-featured 32-bit MCU.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S1651-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
What are the key features of LM3S1651-IQC80-C1?
- 32-bit ARM Cortex-M3 core with DMA controller for efficient peripheral data transfers without CPU overhead
- 67 GPIO lines in a 100-pin LQFP package enabling complex multi-peripheral embedded system designs
- Integrated ADC supporting analog signal acquisition alongside digital control peripherals
- On-chip program ROM with factory-programmed bootloader reducing external Flash requirements
What is LM3S1651-IQC80-C1 used for?
The LM3S1651-IQC80-C1 targets industrial automation, motor control, and building automation systems requiring a 32-bit MCU with extensive I/O capability. Its 67 GPIO lines and DMA support make it well matched for multi-axis stepper control panels and energy metering applications. Embedded communication gateways that bridge multiple serial interfaces like UART, SPI, and I2C also benefit from the Cortex-M3 processing performance.
What are the specifications of LM3S1651-IQC80-C1?
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | NO |
| Clock Frequency-Max | 0.032MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G100 |
| Number of I/O Lines | 67 |
| 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) | 32768 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 1.32V |
| Supply Voltage-Min | 1.2V |
| 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) | 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 |
Where can I find the LM3S1651-IQC80-C1 datasheet?
LM3S1651-IQC80-C1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S1651-IQC80-C1?
Compatible alternatives and drop-in replacements for LM3S1651-IQC80-C1:
Frequently Asked Questions
How many I/O lines does LM3S1651-IQC80-C1 provide and what does this enable for system designs?
The LM3S1651-IQC80-C1 provides 67 GPIO lines in the 100-pin LQFP package, enabling direct connection of multiple sensors, displays, and actuators without external I/O expanders. This is sufficient for a motor control panel driving 16 relays, reading 8 analog inputs via ADC, and maintaining 3 serial communication links simultaneously on a single 32-bit MCU.
What advantage does the integrated DMA controller provide in LM3S1651-IQC80-C1 data-intensive applications?
The DMA controller in LM3S1651-IQC80-C1 allows peripheral-to-memory and memory-to-peripheral transfers without CPU intervention, freeing the ARM Cortex-M3 core for real-time control algorithms. In a data acquisition system sampling 8 ADC channels at 100 kSps, DMA reduces CPU utilization by over 60% compared to interrupt-driven transfer methods.
For what types of industrial control boards is the 100-pin LQFP package of LM3S1651-IQC80-C1 best suited?
The 100-pin LQFP package with 0.5 mm pin pitch occupies approximately 14 mm x 14 mm on a PCB, making it practical for mid-size industrial controller boards. It suits PLC expansion modules, CNC axis controller cards, and HVAC control units where 67 I/O lines must be routed within a 100 cm² board area using standard PCB fabrication.
Which serial communication interfaces are available on LM3S1651-IQC80-C1 for connecting external peripherals?
LM3S1651-IQC80-C1 includes multiple UART, SPI (SSI), and I2C interfaces typical of the LM3S Stellaris family, supporting baud rates up to 3.125 Mbps on UART channels. This allows simultaneous RS-485 field bus communication, SPI-based sensor interfacing, and I2C EEPROM access from a single 32-bit ARM Cortex-M3 microcontroller without external bridge ICs.
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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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