YMF262

The YMF262 is a kind of FM operator type L3 (OPL3).It is developed as a sound source LSI for computor and game equipment.The YMF262 contains an FM sound source which may be controlled by software.In addition, five different rhythm sounds (bass drum, tom tom, top cymbal and hi hat cymbal) are available.The YMF262 is register compatible with the YM3812 (OPL3), with twice the number of signal source, four new operator modes, selectable waveform and 4 channel output.

What comes next is about the absolute maximum ratings (Ta=+25) of YMF262.The VDD (power supply voltage) is from -0.3 V to +7.0 V.The VI (input voltage) is from -0.3 V to VDD+0.5 V.The Top (operating temperature) is from 0 to +70.The Tstg (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 typicall is 5.00 V and the maximum is 5.25 V.The minimum Top (operating temperature) is 0,the typical is 25 and the maximum is 70.The typical clock frequency is 16.03 XHz.

The following is about the DC characteristics (Conditions: Ta=0 to 70,VDD=5.0±0.25 V) of YMF262.The maximum PD (power dissipation) is 50 mW at VDD=5.0 V, fM=14.32 MHz.The minimum VOH (high level output voltage) is VDD-1.0 V at IOH=-80 A.The maximum VOL (low level output voltage) is 0.4 V at IOL=2.0 mA.The minimum VIH1 (high level input voltage) is 2.2 V and the maximum VIL1 (low level input voltage) is 0.8 V applied to /WR, /RD, /CS, A0, A1,D0-D7 (when used as input pins).The minimum VIH2 (high level input voltage) is 3.5 V and the maximum VIL2 (low level input voltage) is 1.0 V applied to M, /IC.The minimum RU (pull up registerance) is 80 k and the maximum is 400 k.