LM3S102-IRN20-C2T Texas Instruments Integrated Circuit (Other) In Stock
LM3S102-IRN20-C2T is a 32-bit ARM Cortex-M3 microcontroller running at up to 8 MHz, with 18 I/O lines, DMA, PWM channels, and a 28-pin SOIC package suitable for small embedded control systems. It integrates DMA and PWM peripherals without an on-chip ADC, targeting cost-sensitive digital control and communication designs. Suitable for industrial motor control, consumer appliance management, and simple embedded automation tasks.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S102-IRN20-C2T 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 LM3S102-IRN20-C2T?
- 32-bit ARM Cortex-M3 core up to 8 MHz clock frequency
- 18 configurable I/O lines for digital interfacing
- Integrated DMA controller for efficient data transfers
- PWM channels for motor and power control applications
- 28-pin SOIC package for through-hole compatible designs
- Low-cost entry-level Stellaris MCU for digital control
What is LM3S102-IRN20-C2T used for?
The LM3S102-IRN20-C2T suits embedded control applications requiring a 32-bit processor at modest clock speeds, such as home appliance controllers, small industrial automation nodes, and serial communication bridges. Its DMA and PWM peripherals enable efficient data movement and motor drive tasks without software overhead. The device is also used in educational prototyping boards and low-cost embedded products where a full ARM Cortex-M3 core at 8 MHz suffices.
What are the specifications of LM3S102-IRN20-C2T?
| YTEOL | 0 |
| Has ADC | NO |
| Bit Size | 32 |
| Clock Frequency-Max | 8MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | R-PDSO-G28 |
| Number of I/O Lines | 18 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| 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 | 1.27mm |
| Terminal Position | DUAL |
| 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 LM3S102-IRN20-C2T datasheet?
LM3S102-IRN20-C2T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S102-IRN20-C2T?
Compatible alternatives and drop-in replacements for LM3S102-IRN20-C2T:
Frequently Asked Questions
How many I/O lines and what peripheral channels does the LM3S102-IRN20-C2T provide?
The LM3S102-IRN20-C2T offers 18 I/O lines along with DMA channels and PWM output channels, enabling efficient digital control and signal generation tasks in embedded systems without requiring additional external interface ICs.
Does the LM3S102-IRN20-C2T include an ADC, and what are the implications for analog sensing applications?
No, the LM3S102-IRN20-C2T does not include an on-chip ADC. Designs requiring analog-to-digital conversion must add an external ADC IC, which increases component count but keeps the MCU cost low for purely digital 8 MHz control applications.
At 8 MHz clock frequency, which types of control tasks are best matched to the LM3S102-IRN20-C2T?
At 8 MHz, the 32-bit Cortex-M3 core handles motor PWM generation, serial protocol bridging (UART, SPI, I2C), and simple state-machine control loops efficiently, making it suitable for appliance controllers and low-bandwidth industrial automation nodes.
What package does the LM3S102-IRN20-C2T use and how does it affect PCB design?
It comes in a 28-pin SOIC package, which is hand-solderable and compatible with standard PCB footprints, simplifying prototype assembly and repair compared to fine-pitch BGA or QFN alternatives for the same 32-bit Cortex-M3 functionality.
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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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