LM3S102-ERN20-C2 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S102-ERN20-C2 is a 32-bit ARM Cortex-M3 microcontroller operating at up to 8 MHz with DMA and PWM channels. It provides 18 I/O lines and is housed in a 28-pin SOIC plastic package for embedded control applications. Suitable for simple motor control, industrial automation, and low-cost embedded system designs.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S102-ERN20-C2 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3S102-ERN20-C2?
- 32-bit ARM Cortex-M3 core running at up to 8 MHz for efficient embedded control processing
- DMA and PWM channels enabling hardware-assisted data transfer and motor/LED control without CPU overhead
- 18 configurable I/O lines in a compact 28-pin SOIC package for flexible peripheral connectivity
- Low-cost microcontroller platform suited for simple industrial automation and embedded control applications
What is LM3S102-ERN20-C2 used for?
The LM3S102-ERN20-C2 is designed for entry-level embedded control applications including simple motor drivers, industrial automation nodes, and consumer device controllers requiring a 32-bit processor at minimal cost. Its DMA channels and PWM outputs support hardware-driven waveform generation and data transfer, reducing firmware complexity. The 28-pin SOIC package with 18 I/O lines is suitable for compact PCB designs in space-constrained systems.
What are the specifications of LM3S102-ERN20-C2?
| 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-ERN20-C2 datasheet?
LM3S102-ERN20-C2 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S102-ERN20-C2?
Compatible alternatives and drop-in replacements for LM3S102-ERN20-C2:
Frequently Asked Questions
What is the maximum clock speed of the LM3S102-ERN20-C2 and how does it compare to higher-performance Stellaris parts?
The LM3S102-ERN20-C2 operates at a maximum clock frequency of 8 MHz, which is lower than higher-end Stellaris microcontrollers such as the LM3S8962 running at 50 MHz. This makes it suitable for simple control tasks where lower processing speed reduces power consumption and system cost in 3.3 V embedded designs.
Does the LM3S102-ERN20-C2 include ADC or DAC channels for analog sensing?
The LM3S102-ERN20-C2 does not include integrated ADC or DAC channels, making it unsuitable for direct analog sensor acquisition without an external ADC. For designs needing analog input, an external SPI or I2C ADC must be added alongside the 18 available I/O lines and DMA channels.
Which low-level control applications can benefit from the LM3S102-ERN20-C2 PWM channels?
The PWM channels on the LM3S102-ERN20-C2 support motor speed control, LED dimming, and servo positioning in embedded applications running at up to 8 MHz from a 3.3 V supply. The DMA channels complement PWM by enabling background data movement across the 18 I/O lines without stalling the ARM Cortex-M3 core.
What package does the LM3S102-ERN20-C2 use and how does it affect PCB design?
The LM3S102-ERN20-C2 is housed in a 28-pin SOIC plastic package, offering a surface-mount footprint that reduces board space compared to DIP alternatives. The SOIC package supports standard PCB manufacturing processes and is compatible with automated assembly, making it cost-effective for small industrial controller boards with 18 I/O lines.
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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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