36 Netbook Keyboard Controller System HT82B40R + BS83C24-3 Touch Key Flash MCU Characteristics Uses Non X86 CPU Platform System Netbook Products HT82B40R has Fully Integrated 12MHz Oscillator Integrated 1.5k Resistor Connected between V33O and D- Utilises USB Interface Communication with the Host Controller Reduced External Components for System Solutions Low Cost System Solutions Touch Pad 10 14 Supports PS/2, SPI Interface Touch Pad Under 1.0 mm of Plastic HT82B40R BS83C24-3 44QFP W40mm L67mm 14 Y10 Application Areas Notebooks, E-Books, Table PCs , etc. Application Circuit Key1 Key2 Key3 Key4 Key5 Key6 Key7 Key8 Key9 Key10 Key11 Key12 Key13 Key14 Key15 Key16 Key17 Key18 Key19 Key20 Key21 Key22 Key23 Key24 38 39 40 41 42 43 44 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 U1 PB0/KEY1 PB1/KEY2 PB2/KEY3 PB3/KEY4 PB4/KEY5 PB5/KEY6 PB6/KEY7 PB7/KEY8 PC0/KEY9 PC1/KEY10 PC2/KEY11 PC3/KEY12 PC4/KEY13 PC5/KEY14 PC6/KEY15 PC7/KEY16 PD0/KEY17 PD1/KEY18 PD2/KEY19 PD3/KEY20 PD4/KEY21 PD5/KEY22 PD6/KEY23 PD7/KEY24 PF3 PF2 PF1 PF0 PE7 PE6 PE5 PE4 PE3 PE2 PE1 PFD/PE0 37 36 35 34 33 32 31 30 29 28 27 26 VCC VCC SDA/CLOCK R1 10KΩ L INT R C2 SDO/PA1 INT/PA4 SCS/PA3 SDI/SDA/PA0 SCL/SCL/PA2 RES VDD/AVDD VSS/AVSS 25 24 23 22 21 20 19 18 1 2 3 4 5 6 7 8 9 10 11 12 SCL/DATA R INT 104p L Header 12 P4 SDA/CLOCK SCL/DATA RESET VCC CP1 104p BS83C24 C1 10u P1 1 2 3 4 5 Header 5 INT 1 L 1 R 1 SDA/CLOCK 1 SCL/DATA 1 KEY1 1 KEY2 1 KEY3 1 KEY4 1 X6 X5 Y1 Y2 KEY5 1 KEY6 1 KEY7 1 KEY8 1 X4 X3 Y3 Y4 KEY9 1 KEY10 1 KEY11 1 KEY12 1 X2 X1 Y5 Y6 KEY13 1 KEY14 1 KEY15 1 KEY16 1 X7 X9 Y7 KEY17 1 KEY18 1 KEY19 1 KEY20 1 Y8 BS83C24_Touch Pad X10 X8 Y9 Y10 KEY21 1 KEY22 1 KEY23 1 KEY24 1 RESET 1 X12 X11 X13 X14 VCC 1 1 TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8