NUC120 series USB Line Selection Guide (Medium Density) Part No. Flash SRAM I/O Timer Connectivity I2S Comp. PWM ADC RTC ISP Package Status* (KB) (KB) UART SPI/SSI I2C USB LIN CAN ICP NUC120LE3AN 128K 16K up to 31 4x24-bit 2 1 2 1 1 1 4 8x12-bit v v LQFP48 P NUC120LD3AN 64K 16K up to 31 4x24-bit 2 1 2 1 1 1 4 8x12-bit v v LQFP48 P NUC120RE3AN 128K 16K up to 45 4x24-bit 2 2 2 1 1 2 6 8x12-bit v v LQFP64 P NUC120RD3AN 64K 16K up to 45 4x24-bit 2 2 2 1 1 2 6 8x12-bit v v LQFP64 P NUC120VE3AN 128K 16K up to 76 4x24-bit 3 4 2 1 1 2 8 8x12-bit v v LQFP100 P NUC120VD3AN 64K 16K up to 76 4x24-bit 3 4 2 1 1 2 8 8x12-bit v v LQFP100 P NUC120VD2AN 64K 8K up to 76 4x24-bit 3 4 2 1 1 2 8 8x12-bit v v LQFP100 P