HT6247

318 Series of Encoders Features · · · · Operating voltage: 2.4V~12V Low power and high noise immunity CMOS technology Low standby current Three words transmission · · · Built-in oscillator needs only 5% resistor Easy interface with an RF or infrared transmission media Minimal external components 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 3 encoders are a series of CMOS LSIs for remote control system applications. They are capable of encoding 18 bits of information which consists of N address bits and 18-N data bits. Each address/data input is externally trinary programmable if bonded out. It is otherwise set floating internally. Various packages of 18 the 3 encoders offer flexible combinations of 18 programmable address/data to meet various application needs. The programmable address/data is transmitted together with the header bits via an RF or an infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger type or a DATA trigger type further enhances the appli18 cation flexibility of the 3 series of encoders. Selection Table Function Part No. HT600 HT640 HT680 HT6187 HT6207 HT6247 Address No. 9 10 8 9 10 12 Address/ Data No. 5 8 4 0 0 0 Data Dummy No. Code No. 0 0 0 3 4 6 4 0 6 6 4 0 Oscillator RC oscillator RC oscillator RC oscillator RC osc...