35 7 Touch Key TV Control Board BS83B16-3 Touch Key Flash MCU Characteristics Touch Key MCU : BS83B16-3 24-pin SSOP (8-bit Flash Type MCU) Integrated EPROM Proximity Switch Functions Requires Limited External Components and has High Stability Excellent S/N Ratio Application Areas LCD TVs, LCD Monitors, A.I.O PC, DFP, etc. Application Circuit VDD C1 10uF/16V J1 1 2 3 D1 Diode 2K R9 R10 2K R11 2K R12 2K R14 2K R15 2K R16 2K R17 2K LED1 LED2 LED3 LED4 RC1 RC2 RC3 RC4 RC5 RC6 RC7 RC8 1 2 3 4 5 6 7 8 9 10 11 12 IR_RX1 R8 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 24 23 22 21 20 19 18 17 16 15 14 13 PA1/SDO PA4/INT PA3/SCS PA0/SDI/SDA PA2/SCK/SCL RES VDD VSS RC7/KEY16 RC6/KEY15 RC5/KEY14 RC4/KEY13 VCC GND Vout Function option 1K/NC K1_DA0 K1_DA1 K1_DA2 K2_DA0 K2_DA1 RES VDD GND K2_DA2 LED7 LED6 LED5 VDD R13 100K C3 0.1uF C4 0.1uF K1 K2 POWER KEY1= 0V KEY2= 3.3V K3 K4 K5 RC7 1 RC6 1 RC5 1 RC4 1 RC3 1 RC2 1 1 RC1 BS83B16-3_24SSOP K6 CH - CH + VOL - VOL + KEY1= 3.3V KEY2= 2.4V KEY1= 3.3V KEY2= 1.6V KEY1= 0.8V KEY2= 3.3V KEY1= 1.6V KEY2= 3.3V K7 MENU TV/AV KEY1= 3.3V KEY2= 0V KEY1= 2.4V KEY2= 3.3V ICP Stack Programming <ICP 疉 燒 錄 點 > Terminal JP1 1 2 3 4 VCC KEY2 KEY1 GND K1_DA3 VDD K2_DA0 C2 10uF/16V RES Header 4H VDD GND 1 J2 SDA 1 J3 SCL 1 J4 RES 1 J5 VDD 1 J6 GND Divider Output Wiring Diagram <分 壓 輸 出Function 功能之接線圖 > K2_DA1 K2_DA2 R21 R22 R23 8.2K ohm 8.2K ohm 22K ohm KEY2 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED7 K2_DA0 R1 R2 R3 R4 R5 R6 R7 330 ohm 330 ohm 330 ohm 330 ohm 330 ohm 330 ohm 330 ohm LED6 K1_DA2 VCC LED5 R20 22K ohm KEY1 LED4 8.2K ohm LED3 8.2K ohm K1_DA1 LED2 R18 R19 LED1 K1_DA0