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9700 Series Devices

The LM3S9700 Series of Stellaris MCUs features a 10/100 Ethernet MAC/PHY, USB On-The-Go, and Controller Area Network with 128K bytes of flash and 64K bytes of SRAM. In addition to several product enhancements, the LM3S9700 Series adds new features, such as a versatile External Peripheral Interface (with modes to support SDRAM, SRAM/Flash, Host-Bus, and M2M), an Integrated Interchip Sound (I2S) Interface, simultaneous dual ADC capability, a second watchdog timer with independent clock for safety critical applications (supported by the IEC 60730 library addition to the StellarisWare™ Library), and a 16 MHz software-trimmed 1% Precision Oscillator.

Summarized Features

USBCANUARTsGPIOsSSII2CAnalog ComparatorsADC Channels
LM3S9792O/H/D236522316
LM3S9790O/H/D236022316


Product Details


LM3S9B92
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LM3S9792

The Stellaris® LM3S9792 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 80 MHz, with 128 kB flash, 64 kB SRAM, a 32-ch DMA, a 32-bit external peripheral interface, a 16MHz internal precision oscillator, and ROM preloaded with the StellarisWare Driver Library, Boot Loader, AES encryption lookup tables, and a cyclical redundancy check (CRC) function. The LM3S9792 also features real-time industrial connectivity, with a 10/100 Ethernet MAC/PHY, 2 CAN controllers, USB 2.0 Full Speed OTG/Host/Device, 2 SSI / SPI controllers, 2 I2C interfaces, an I2S interface, and 3 UARTs. The LM3S9792 microcontroller also features advanced motion control features, including 8 motion-control PWM outputs with dead-band, two quadrature encoder inputs for precise position monitoring, and 4 fault protection inputs for low-latency shutdown. The microcontroller also features intelligent analog capability, including 3 analog comparators and 16 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample two channels simultaneously at speeds of 1M samples per second. Finally, the LM3S9792 microcontroller provides 16 digital comparators, a 24-bit systick timer, four 32-bit or eight 16-bit general-purpose timers, 2 watchdog timers, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 65 GPIOs.

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LM3S9790

The Stellaris® LM3S9790 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 80 MHz, with 128 kB flash, 64 kB SRAM, a 32-ch DMA, a 32-bit external peripheral interface, a 16MHz internal precision oscillator, and ROM preloaded with the StellarisWare Driver Library, Boot Loader, AES encryption lookup tables, and a cyclical redundancy check (CRC) function. The LM3S9790 also features real-time industrial connectivity, with a 10/100 Ethernet MAC/PHY, 2 CAN controllers, USB 2.0 Full Speed OTG/Host/Device, 2 SSI / SPI controllers, 2 I2C interfaces, an I2S interface, and 3 UARTs. The microcontroller also features intelligent analog capability, including 3 analog comparators and 16 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample two channels simultaneously at speeds of 1M samples per second. Finally, the LM3S9790 microcontroller provides 16 digital comparators, a 24-bit systick timer, four 32-bit or eight 16-bit general-purpose timers, 2 watchdog timers, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 60 GPIOs.