Simple Type RF Receiver HT68F30 Flash Type MCU with EEPROM Characteristics Flash Program Memory and integrated EEPROM Fully integrated RC system oscillator -- reduced need for external components (resistor, crystal, etc) 6 LEDs indicates 6-key remote controller status Supports ICP HT68F30 Application Areas Motorcycle, Car, Wireless RF Receiver Applications Application Circuit Status Key Indicator 3V Power / RF Receiver Indicator LED 3V 3V 3V 3V 3V R1 2.2K R2 2.2K R3 2.2K R4 2.2K R4 2.2K R4 2.2K D1 D2 D3 D4 D5 D6 No1 No2 No3 No4 No5 ANT1 . No6 3V 5V C1 22uF R5 2.2K D6 3V RX C4 0.1uF 4 2 PB4/XT2 PA0/C0/TP0_0 PA4/INT1/TCK1 PA3/INT0/C0-.. PA2/TCK0/C0+ PA1/TP1A....... PA6/SDI/SDA.. PA5/C1X/SDO.. PB2/OSC2 PB5/SCS PB0/RST PB1/OSC1 PB3/XT1 PA7/SCK/SCL. VSS 3 1 13 14 15 16 11 12 5 9 8 6 10 D5 U2 1N5817 MD1 HT7750 LX_Ctrl 3 L1 RF_Data_In C5 104 S1 C2 4.7uF 100uH LX GND BT1 CR2032 U1 VDD Vout 1 7 1 2 3 4 5 2 C3 22uF C6 104 RF_Module WakeUP HT68F30 16NSOP On / Off Switch MCU : HT68F30 RF Receiver Module Power Circuit -- 3V to 5V RF Receiver Module