5 4 3 2 1 MAIN POWER SUPPLY SECTION 10uF/16V 0.1uF GND GND VOUT VOUT1 2 4 D C1 0.3E/1A C5 C2 C6 LM1117 GND GND 0.1uF 1 C4 C3 GND VIN VCC_3V3 L1 0.1uF 3 GND D D1 1N4007 VCC_3V3_TP1 +5 TO +3.3V U1 VBUS 10uF/16V GND GND D2 LED 10uF/16V GND R1 1K GND MICRO USB CONNECTOR C C USB TO UART BRIDGE VBUS_TP1 D3 5V0 TVS VBUS VCC_3V3 VBUS R2 0E* C7 DS5 B S5 D+ ID S2 S4 R5 0R R3 2 U3 4 5 27E R4 3 6 L2 2 VBUS 1 0.3E/1A S2 S4 G 0.1uF 20 1 5 GND DGND 6 1 5 2 27E C10 10pF* 1 4 16 15 GND C11 10pF* VCC_3V3 R6 0E* 19 4 3 3 DGND SRV05-4 L3 1 RESET# C12 1uF 180ohm at 100MHz 2 VCCD 1 5 11 3 2 9 10 6 RXD ISP_TXD B 28 27 8 12 14 13 22 23 CY7C65213 DGND EARTH_USB_A DGND TXD RXD CTS# RTS# DTR# DSR# DCD# RI# GPIO7 GPIO6 GPIO5 GPIO4 GPIO3 GPIO2 GPIO1 GPIO0 DGND 17 MICRO USB AB VCCIO USBDM USBDP 2 P1 4 VCC GND1 GND2 GND3 5V U2 DNU NC2 NC1 4.7uF/16V S1 S3 DGND C9 26 25 24 DGND C8 DGND 7 18 21 S1 S3 0.1uF EARTH_USB_A A A SCHEMATIC NO. SIGNALS & SYSTEMS (India) Pvt. Ltd., SS Rev V0.05 Sheet Size 5 2 Custom 4 of 4 HO.:15/D-19, SIPCOT IT Park, Siruseri, Chennai, TN- 603 103 Date Thursday, November 19, 2015 3 SCHEMATIC DRAWING TITLE PREPARED BY P.SELVAKUMAR LPC812_DEVKIT CHECKED BY PK POWER SUPPLY APPROVED BY LRR SUB - TITLE 2 1