LM3S1D21-IQC80-A1
IC MCU 32BIT 512KB FLASH 100LQFP
Embedded Microcontrollers
100-LQFP
Stellaris® ARM® Cortex®-M3S 1000
Obsolete
$7.87 / unit (market reference)
MOQ: 39 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | LM3S1D21-IQC80-A1 |
| Package / Case | 100-LQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Core Processor | ARM® Cortex®-M3 |
| Speed | 80MHz |
| Program Memory Size | 512KB (512K x 8) |
| RAM Size | 96K x 8 |
| Number of I/O | 67 |
| Data Converters | A/D 8x12b |
| Voltage - Supply | 1.235V ~ 1.365V |
| Connectivity | EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Supplier Device Package | 100-LQFP (14x14) |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
LM3S1D21-IQC80-A1 by Rochester Electronics, LLC is a ARM® Cortex®-M3 microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 100-LQFP package fits automated SMT assembly. Operating temperature is -40°C ~ 85°C (TA) — verify your application environment. The C8 variant has 64KB Flash / 20KB RAM; for larger firmware use the CB (128KB) or RC (256KB) variants. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Speed | 80MHz |
| RAM Size | 96K x 8 |
| Core Size | 32-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART |
| Number of I/O | 67 |
| Core Processor | ARM® Cortex®-M3 |
| Data Converters | A/D 8x12b |
| Oscillator Type | Internal |
| Program Memory Size | 512KB (512K x 8) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 1.235V ~ 1.365V |
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