LM3S3749-IQC50-A0 MCU — 50MHz ARM Cortex-M3, 128KB Flash, Stellaris
Texas Instruments LM3S3749-IQC50-A0, Stellaris ARM Cortex-M3S 3000 series, 32-bit single-core MCU running at 50MHz with 128KB Flash and 64KB SRAM, housed in a 100-LQFP package, rated -40 to 85°C, operating supply 2.25V to 2.75V.
- 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 3000 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.25V ~ 2.75V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART, USB |
| Number of i (O) | 61 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 128KB (128K x 8) |
Frequently asked questions
Where can I buy the LM3S3749-IQC50-A0 and what is the lead time?
The part is sourced to order through independent distribution against an RFQ — availability and current pricing are confirmed at quote time, not stated as a fixed shelf position or lead-time commitment. Submit an RFQ to get a specific quote for your quantity and required date.
What replaces the LM3S3749-IQC50-A0?
TI consolidated the Stellaris line into the Tiva-C series; the formal replacement order code is confirmed through TI's official cross-reference process. Do not substitute by part-number pattern match — a verified alternate requires a TI-issued cross-reference document before it can be BOM-qualified.
What is the clock speed and core architecture of the LM3S3749-IQC50-A0?
The LM3S3749-IQC50-A0 runs an ARM Cortex-M3 core at 50MHz, with 128KB Flash and 64KB SRAM, rated for -40 to 85°C operation on a 2.25V to 2.75V supply.