32-bit ARM Cortex-M3S microcontroller featuring 128KB FLASH memory and 8KB RAM. Operates at up to 50MHz with an internal oscillator and 3.3V supply voltage. Offers multiple interfaces including I2C, SPI, USB, IrDA, and UART/USART, along with 33 programmable I/Os and 3 timers. Includes peripherals like Brown-out Detect/Reset, POR, PWM, WDT, and DMA. Packaged in an LQFP surface mount case, this lead-free and RoHS compliant component is designed for a wide operating temperature range of -40°C to 85°C.
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Texas Instruments LM3S5656-IQR80-C3 technical specifications.
| Package/Case | LQFP |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Interface | I2C, SPI, USB, IrDA, UART, USART |
| Lead Free | Lead Free |
| Max Frequency | 50MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 128KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Mount | Surface Mount |
| Number of A/D Converters | 2 |
| Number of I/Os | 33 |
| Number of Programmable I/O | 33 |
| Number of Timers/Counters | 3 |
| Number of UART Channels | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 160 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 8KB |
| RoHS Compliant | Yes |
| Series | Stellaris® ARM® Cortex®-M3S 5000 |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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