100 MHz Cortex-M3 with Ethernet and USB OTG
The NXP LPC1768FET100Y is a 32-bit ARM Cortex-M3 microcontroller from the LPC17xx series, clocked at 100 MHz. It packs 512 KB of Flash and 64 KB of RAM, with an integrated Ethernet MAC, USB OTG, and CANbus — enough connectivity for an industrial gateway or a motor-drive node without external PHY for the MAC. The 70 GPIOs and the 8-channel 12-bit ADC cover sensor interfacing and parallel display buses. Supply range is 2.4 V to 3.6 V, and the operating temperature spans -40 to 85 °C, so it fits factory-floor and outdoor telecom enclosures.
Memory and peripheral set for mid-range control
512 KB of Flash is sized for a full Modbus TCP stack plus a bootloader and application code; 64 KB RAM handles two Ethernet frames and a moderate data buffer without external SRAM. The peripheral list includes a motor-control PWM, I²S for audio codecs, and a DMA controller that offloads the Cortex-M3 during high-throughput ADC reads or USB transfers.
Package and mounting — 100-TFBGA
Supplied in a 100-ball TFBGA (9x9 mm). The 9x9 mm footprint limits fan-out vias; a four-layer PCB with microvias is typical for routing the 70 GPIOs and Ethernet/USB pairs.