HT6030/HT6032/HT6034 12 3 Series of Decoders Features Operating voltage: 2.4V~12V Received data are checked two times Low power and high noise immunity CMOS Built-in oscillator needs only 5% resistor technology VT goes high during a valid transmission Low standby current Easy interface with an RF or an infrared transmission Capable of decoding 12 bits of information medium 8~12 address pins Minimal external components 12 0~4 data pins Pair with Holtek s3 series of encoders Trinary address setting 18-pin DIP, 20-pin SOP package Applications Burglar alarm system Car alarm system Smoke and fire alarm system Security system Garage door controllers Cordless telephones Car door controllers Other remote control systems General Description 12 The 3 decoders are a series of CMOS LSIs for remote or unmatched codes are encountered, the input data 12 control system applications. They are paired with 3 se- codes are decoded and transferred to the output pins. ries of encoders. For proper operation a pair of en- The VT pin also goes high to indicate a valid transmis- coder/decoder with the same number of address and sion. data format should be selected (refer to the encoder/de- 12 The 3 series of decoders are capable of decoding 12 coder cross reference tables). bits of information that consists of N bits of address and 12 The 3 series of decoders receive serial address and 12 N bits of data. To meet various applications they are data from its corredponding series of encoders that are arranged to provide a number of data pins ranging from transmitted by a carrier using an RF or an IR transmis- 0 to 4 and an address pin ranging from 8 to 12. Thus, sion medium. Then it compares the serial input informa- various combinations of address/data number are avail- tion twice continuously with its local address. If no errors able in different packages. Selection Table Data Function Address VT Oscillator Trigger Package No. No. Type Part No. HT6030 12 0 RC oscillator 18DIP, 20SOP DIN active Hi HT6032 10 2 L RC oscillator 18DIP, 20SOP DIN active Hi HT6034 8 4 L RC oscillator 18DIP, 20SOP DIN active Hi Note: Data type: L stands for latch type data output. VT can be used as a momentary data output. Rev. 1.20 1 April 15, 2004HT6030/HT6032/HT6034 Block Diagram Note: The address/data pins are available in various combinations (refer to the address/data table). Pin Assignment % % , % , % + * * , & & ) & ) * & & ( & ) ( ( ( ( ( ) ) & ( ) & ( ( * * % ) * % ) % ) , & * * , * + , + + + + % , , + % , % % % % + % , % + , * & , & & ) * * ( & ) & ( ) & ( ( ( ( ) ) ( ( ) & ( * * * ) & % ) % ) , & % , , + * * + + * + + , + % , , % % Rev. 1.20 2 April 15, 2004