32-bit ARM Cortex-M3S 9000 series microcontroller, operating at 80MHz. Features 256KB FLASH and 64KB RAM, with 60 programmable I/O pins. Supports I2C, SPI, UART, USB, Ethernet, IrDA, and USART interfaces. Includes 4 timers/counters, 3 UART channels, and peripherals like DMA, PWM, WDT, POR, and Brown-out Detect. Operates from 1.08V to 3.6V, with a 3.3V typical supply, and a temperature range of -40°C to 85°C. Packaged in LQFP for surface mounting.
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Texas Instruments LM3S9997-IQC80-C5 technical specifications.
| Package/Case | LQFP |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 80MHz |
| Interface | I2C, SPI, UART, USB, Ethernet, IrDA, USART |
| Lead Free | Contains Lead |
| Max Frequency | 80MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Min Supply Voltage | 1.08V |
| Mount | Surface Mount |
| Number of A/D Converters | 2 |
| Number of I/Os | 60 |
| Number of Programmable I/O | 60 |
| Number of Timers/Counters | 4 |
| Number of UART Channels | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 90 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 64KB |
| RoHS Compliant | Yes |
| Series | Stellaris® ARM® Cortex®-M3S 9000 |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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