KM3702AD/AQ

The KM3702AD/AQ has 11 features.The first one is interfaces directly with an 8 bit microprocessor.The second one is wide application range.The third one is reduced number of counter ICs.The fourth one is reduced parts count.The fifth one is 40 pin plastic dual  lnline package.The sixth one is 60 pin quad flat package.The seventh one is +5V sigle power supply.The eighth one is 32 bit command counter.The ninth one is 24 bit error counter.The tenth one is adjustable output rate to the D/A.The eleventh one is 10 MHz clock.

The KM3702AD/AQ is a position control CMOS LSI which monitors the difference between the COMMAND (±COM) and FEEDBACK(±FB) pulses,under the conditions set by the CPU,and uses this position error to output a bit pattern to the D/A converter.The KM3702AD/AQ uses a sigle +5V power supply and has TTL-compatible input and output.Its system clock (CP) frequency is 10 MHz maximum.To keep track of the input pulses,these are two binary up/down counters:COMMAND COUNTER-32bits,cumulative value of +COM and -COM input pulses,and ERROR COUNTER-24 bits,difference between +COM and -COM input and +FB and -FB input pulses.±COM and ±FB pulses can be input either synchronously or asynchronously.Data can be present into these counters,and the counter values can be read out by the host CPU.Commands from the CPU can be used to create a zero clamp condition or a floating state condition on the output to the D/A converter,Zero clamp means that for the purposes of the D/A converter,the output pattern will be zero even though the ERROR COUNTER continous to function normally.