HT604L Datasheet | Holtek Semiconductor

HT604L/HT614/HT692 318 Series of Decoders Features - Operating voltage: 2.4V~12V - Low power and high noise immunity CMOS technology - Low standby current - Capable of decoding 18 bits of information - 9~10 address pins - 2~8 data pins - Trinary address setting - Two times of receiving check - Built-in oscillator needs only a 5% resistor - Valid transmission indicator - Easy interface with an RF or an infrared transmission medium - Minimal external ponents - Pair with Holtek¢s 318 series of encoders - HT604L/HT614: 20-pin DIP/SOP package HT692: 18-pin DIP package Applications - Burglar alarm system - Smoke and fire alarm system - Garage door controllers - Car door controllers - Car alarm system - Security system - Cordless telephones - Other remote control systems General Description The 318 decoders are a series of CMOS LSIs for remote control system applications. They are paired with the 318 series of encoders. For proper operation, a pair of encoder/decoder pair with the same number of address and data format should be selected (refer to the encoder/decoder cross reference tables). The 318 series of decoders receive serial address and data from that series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. It then pares the serial input data twice continuously with its local address. If no errors or unmatched codes are encountered, the input data codes are decoded and then transferred to the output pins. The VT pin also goes high to indicate a valid transmission. The 318 decoders are capable of decoding 18 bits of information that consists of N bits of address and 18-N bits of data. To meet various applications they are arranged to provide a number of data pins whose range is from 0 to 8 and an address pin whose range is from 8 to 18. In addition, the 318 decoders provide various binations of address/data number in different...