32-bit ARM Cortex-M3S 5000 series microcontroller featuring 80MHz operation, 256KB FLASH memory, and 96KB RAM. This surface-mount LFBGA package offers 72 programmable I/Os, 4 timers/counters, 3 UART channels, and multiple interfaces including I2C, USB, CAN, I2S, SPI, and UART. Integrated peripherals include Brown-out Detect/Reset, POR, PWM, WDT, and DMA. Operating voltage is 3.3V with an internal oscillator, and it supports a temperature range of -40°C to 85°C.
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Texas Instruments LM3S5B91-IBZ80-C3T technical specifications.
| Package/Case | LFBGA |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 80MHz |
| Interface | I2C, USB, CAN, I2S, UART, SPI, IrDA, USART, EBI/EMI |
| Lead Free | Contains Lead |
| Length | 10mm |
| Max Frequency | 80MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Mount | Surface Mount |
| Number of A/D Converters | 2 |
| Number of I/Os | 72 |
| Number of Programmable I/O | 72 |
| Number of Timers/Counters | 4 |
| Number of UART Channels | 3 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 1 |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 96KB |
| RoHS Compliant | Yes |
| Series | Stellaris® ARM® Cortex®-M3S 5000 |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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