2 VCC DD+ VREG 1 2 3 4 5 6 7 22 SELFPWR 23 GANG OVER#2 24 25 26 27 VCC I2C_SDA OVER#1 RESET 28PIN_QFN DD-(2) DD+(4) DD+(2) DD-(4) VREG 8 DD-(1) DD+(1) 28 VCC_A RREF DD+(2) I2C_SCL VCC_A DD-(2) VCC C 6 OVER#3 21 20 OVR#3 19 OVR#4 18 17 RESET 16 DD+(4) 15 C DD-(4) 14 R2 DD+(1) DD+(3) 5 VCC_D OVER#4 DD-(3) DD+(1) VREG DD-(1) 13 C2 4 12 VREG X_OUT DD-(1) R6 D+ 11 C1 3 D- X_IN D+ 2 VCC_A RESET RREF 1 10 7 6 DR1 VREG U1 R5 J2 D VCC 9 8 9 D1 DIODE 1 2 3 4 5 D SELFPWR USB-TYPE B MINI J1 1 GANG 3 OVR#2 4 OVR#1 5 R3 VREG VCC USB-TYPE A VCC VREG 1 2 3 DD-(2) DD+(2) 1 2 3 SELFPWR RREF XIN 1 2 3 4 5 6 GANG DD-(3) J7 J6 DD+(3) VCC XOUT J3 C5 C6 C7 C8 C9 CON3 R4 CON3 B B USB-TYPE A J4 VCC 1 2 3 4 5 6 J5 DD-(3) DD+(3) VCC R7 VCC J8 OVR#1 1 2 3 4 5 6 1 2 3 R8 DD-(4) DD+(4) OVR#2 R9 CON3 OVR#3 R10 USB-TYPE A VREG USB-TYPE A OVR#4 XIN XOUT Y1 A A CRYSTAL C3 Title C4 USB_HUB Size A4 Date: 5 4 3 2 Document Number <Doc> Sunday, April 13, 2014 Rev 01 Sheet 1 1 of 1