YM64AXX series

The YM64AXX series is a product line of ICs designed for automatic performance employing FM sound sources.There are some features of YM64AXX series as follows.First is realistic sounds that employ FM sound sources (2-operator mode).The second is the number of simutaneous sounds up to 4 sounds (4 independent timbres possible).Then is the melody data which is 4 melodies (or 4 phases) selectable within up to 511 steps.Next is performance modes: repeated performance of all melodies or of specified melody is possible.Besides, repeated performance is also possible by using the JUMP sound.The sixth is built-in DAC and crystal oscillation circuit.The seventh is CMOS low power consumption.The eighth is +5 V power supply.The last one is 16-pin DIP package (plastic).

What comes next is about the absolute maximum ratings of YM64AXX series.The input terminal voltage is from -0.3 V to +7.0 V.The operating temperature is from 0 to +70.The storage temperature is from -50 to +125.Then is about the recommended operating conditions.The minimum VDD (power supply voltage) is 4.75 V, the typical is 5.0 V and the maximum is 5.25 V.The GND is 0 V.

The following is about the DC characteristics of YM64AXX series.The minimum VOH (high level output voltage) is 4.0 V.The maximum VOL (low level output voltage) is 0.4 V.The minimum VIL (low level input voltage) is -0.3 V and the maximum is 0.8 V.The minimum VIH (high level input voltage) is 2.0 V and the maximum is VDD V.The minimum VCL (low level clock input voltage) is -0.3 V and the maximum is 0.8 V.The minimum VCH (high level clock input voltage) is 2.0 V and the maximum is VDD V.The maximum IDD (power supply current) is 18 mA.