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| rt1221/rt122 2 rato description: rt1221/rt1222 are remote control transmitte r utilizing cmos technology specially designed for infrared remote control applications. maximum of 65536 customer codes are available by setting external diodes, resistors and internal mask rom. using micro-processors for decoder can co nstruct various powerful applications for remote control systems. features: pin out: cmos technology operating voltage:1.8~3.5v low power consumption 455khz ceramic resonator or crystal rem with 38khz carrier for ir medium 65536 customer codes can be selected maximum active keys: rt1221: 32 function keys and 3 double action keys rt1222: 64 function keys and 3 double action keys absolute maximum rating: (temp=25 ) j symbol parameter conditions rating unit v cc supply voltage 6.0 v v in input voltage -0.3 ?? v cc v p d power dissiption 250 mv t str storage temperature -40 ?? +125 j t op operating temperature -20 ?? +70 j electrical characteristic symbol parameter conditions min. typ. max. unit f osc system frequency 455k ceramic resonator 455k h z v cc supply voltage all function operations 1.8 3.0 3.5 v i cc operating current f osc =455khz without load - 200 400 ua i stb standby current f osc stop - 0.1 1 ua i ol(led) led sink current v o =0.3v 1.2 2.0 - ma i oh(dout) dout source current v o =2.7v -2.0 -4.0 - ma
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Price & Availability of RT1221-001
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