HT6P12

www.DataSheet4U.com HT6P12 Learning Car Alarm Decoder Features Operating voltage: 2.4V~5.2V Low power consumption and high noise immunity Built-in oscillator needs only 5% resistor Learning function Maximum of 8 sets of customer codes can be stored 2^24 information 3 local alarm trigger inputs: TRIG, AL+, ALACC can disarm whole car alarm system Easy interface with RF or IR medium Check received codes 3 times 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 HT6P12 is a 24-bit decoder with a learning function. It pairs with the HT6P20D encoder for remote control system applications. The HT6P12 can interface with HOLTEK’s EEPROM (HT93LC46). When the data pins of the HT6P20D (data negative polarity output type) encoder is triggered from a range of 2^24 series, a complete remote car alarm system is formed with the HT6P12. The decoder can store 8 sets of customer codes maximum at the learning mode. The first 20 bits of the received 24 bit of information are interpreted as a customer code and the last 4 bits as control signal data. If the received 20 bits of customer code match the bits of one of the stored customer codes in the EEPROM after continuous checking three times, the remaining 4-bit data are latched and then the control function is executed. The HT6P12 incorporates f...