UM3758

--z= --A m--wPRELIMINARY UM3758 Series I’ri-Siate Programmahle Encoder/Decoder Features m Single-Chip CMOS construction m Single-Chip encoder/decoder selected by jump wire m Wide operating voltage range : VDO = 3 to 12 Volts . Built-in RC oscillator (tan use 5 % resistor) n E a s y interface with RF, Infrared(lR) and Ultrasonic transmission media n Tri-state(0, 1, open) address codes, some of address codes used as data Codes or as internal addresses by mask Option m Internal address code is lSbii, ie 3 ‘5 387,428, 489 different ccdes at most m Decoder has 8-bit latch data m Series 1C for various applications n UM3758120A pin outcompatibleto UM3750 General Description The UM3758 series are Single-Chip programmable encoder /decoder ICs fabricated i n C M O S s t r u c t u r e f o r l o w power consun$ion: They are enhanced for new Stage encoder/decoder ICs to provide many more combinations for higher security. Most fzmbinations are achieved by UM3758-18OA, providing 3 = 387,420,489 combinations. Some ICs of this series provide 4 to 8 data bits for controlling. According to the following information, The intern a l a d d r e s s b i i s , 1 8 bis/24pin and 12 biis/lEpin package, tan be assigned by customer in advance for much higher securii and confidentialii. Whenever t h e a d d r e s s Codes of transmitter t r a n s m i t s , t h e receiver will check the address codes with his own and the successive two matched address codes will generate a low pulse. If there were any da...