LM3S102-EGZ20-C2T — Stellaris ARM Cortex-M3 MCU, 20MHz, 8KB Flash, 48-VQFN
Texas Instruments LM3S102-EGZ20-C2T: Stellaris ARM Cortex-M3S 100 series, 32-bit single-core at 20MHz, 8KB Flash, 2K×8 RAM, 18 I/O, 48-VQFN (7×7mm) exposed pad, 3.3V nominal, -40 to 105°C operating range. Tape & Reel packaging.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
- Date & lot codes on quoteStated per line before you commit; label photos on request.
- MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
- PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 100 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~105°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 | I²C, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 18 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-VFQFN Exposed Pad |
| Program memory size | 8KB (8K x 8) |
Frequently asked questions
Where can I buy the LM3S102-EGZ20-C2T and what is the lead time?
The LM3S102-EGZ20-C2T is sourced to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time. Lead time depends on what independent stock is on hand; reel quantities from a single surplus lot are typical.
What does the 20MHz speed rating mean for selecting this MCU?
20MHz is the maximum clock rate — the ARM Cortex-M3 core and APB peripheral bus run at that frequency without an internal divider. It places this part at the lower end of the Stellaris speed spectrum; designs requiring higher compute throughput (motor control loops, DSP-heavy processing) need a faster Stellaris variant.
What is the connectivity on the LM3S102-EGZ20-C2T?
The part includes I2C, Microwire, SPI, SSI, and UART/USART — covering the common serial protocols for sensor, external memory, and communication modules. With 18 I/O total, pin assignment for these interfaces plus general-purpose GPIOs requires careful early allocation.