The maximum operating temperature range for the LPC4357JET256,551 is -40°C to +105°C.
The pin multiplexing on the LPC4357JET256,551 can be configured using the PINMUX registers. Refer to the user manual for more information on how to configure the pin multiplexing.
The maximum clock frequency for the LPC4357JET256,551 is 204 MHz.
The Ethernet interface on the LPC4357JET256,551 can be used by configuring the RMII interface and using the NXP-provided Ethernet driver. Refer to the user manual and the Ethernet driver documentation for more information.
The LPC4357JET256,551 has 136 kB of SRAM and 1 MB of flash memory.