The maximum operating frequency of the LM3S1751 is 50 MHz.
The clock source for the LM3S1751 can be configured using the PLL (Phase-Locked Loop) or the internal oscillator. The PLL can be configured to use an external crystal or an external clock source. The internal oscillator can be used as a clock source, but it is not as accurate as the PLL.
The LM3S1751 has 256 KB of flash memory.
Yes, the LM3S1751 has several low-power modes, including sleep mode, hibernate mode, and shutdown mode, which can be used to reduce power consumption in low-power applications.
The LM3S1751 can be programmed using the IAR Embedded Workbench, Keil µVision, or the Texas Instruments Code Composer Studio (CCS) development environment. The device can be programmed using the JTAG or SWD interface.