What this Stellaris Cortex-M3 brings to a control board
The Texas Instruments LM3S301-IGZ20-C2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 300 series, clocked at 20 MHz with 16 KB of Flash and 2K x 8 of RAM.
LM3S301-IGZ20-C2T Stellaris ARM Cortex-M3 MCU, 20MHz, 16KB Flash
MPNLM3S301-IGZ20-C2T
End of Life
Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series MCU, LM3S301-IGZ20-C2T, 32-bit single-core, 20MHz, 16KB Flash, 2K x 8 RAM, 33 I/O, 48-VFQFN Exposed Pad, -40°C to 85°C.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 300 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 20MHz |
| Package | Tape & Reel (TR) |
| RAM size | 2K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 33 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-VFQFN Exposed Pad |
| Data converters | A/D 3x10b |
| Program memory size | 16KB (16K x 8) |
Product details
Frequently asked questions
What are the specifications of LM3S301-IGZ20-C2T?
The LM3S301-IGZ20-C2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 300 series, running at 20 MHz with 16 KB Flash, 2K x 8 RAM, 33 I/O, a 3-channel 10-bit ADC, and serial interfaces including Microwire, SPI, SSI, and UART/USART. It operates from 3 V to 3.6 V over -40°C to 85°C and comes in a 48-VFQFN exposed-pad package.
What is the supply voltage of LM3S301-IGZ20-C2T?
The supply voltage range is 3 V to 3.6 V, making it a 3.3 V part. It is not 5 V tolerant on the I/O pins.