STMicroelectronics LM3S1138-IQC50-A2T MCU, 50MHz, 64KB Flash
MPNLM3S1138-IQC50-A2T
Obsolete
STMicroelectronics Stellaris ARM Cortex-M3S 1000 series MCU, 50MHz ARM Cortex-M3 core, 64KB Flash, 16KB SRAM, 46 I/O, 100-LQFP, 2.25–2.75V supply, -40–85°C, Tape & Reel.
$18.7100Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
- 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.
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Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 1000 |
| 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 | Tape & Reel (TR) |
| RAM size | 16K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 46 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 64KB (64K x 8) |
Frequently asked questions
What is the LM3S1138-IQC50-A2T's clock speed?
The part runs at 50MHz from an ARM Cortex-M3 core, with an internal oscillator — no external crystal required for the core clock.
What is the LM3S1138-IQC50-A2T's product series?
It belongs to the Stellaris ARM Cortex-M3S 1000 series from STMicroelectronics, a 32-bit single-core MCU family that preceded the TI Tiva C Series.
Does an official pin-compatible alternate exist for this part?
No official L*-listed second source or pin-compatible alternate appears in this ledger. Any alternate MCU in the Stellaris or Tiva C series would require pinout, supply, and peripheral-mapping validation against the target board before ordering.