YM3802

The YM3802 is designed as a LSI device featuring an asynchronous serial communication interface, a frequency divider that acts a communication rate geneator, an interface for the cassette tape recoder, transmit/receive data buffers, timers, counters and a parallel input/output port.

YM3802 has eleven features and functions. (1)Serial communication. (2)Cassette tape recoder interface. (3)Communication rate generator. (4)General purpose 8-bit parallel input/output port. (5)General purpose 14-bits timer. (6)128 bytes FIFO buffer for reception and 16 bytes FIFO buffer for transmission. (7)MIDI support functions. (8)Vector output function according to 8-level interrupt factors. (9)CMOS 4MHz maximum system clock 50mW power comsumption (10mA current consumption). (10)Single 5V power supply TTL level interface. (11)Package 40-pin DIP. Those are all the main features.

Some absolute maximum ratings of YM3802 have been concluded into several points as follow. (1)Its supply voltage would be from -0.3V to 7.0V. (2)Its input voltage would be from -0.3V to 0.5V. (3)Its operating temperature range would be from 0°C to 70°C. (4)Its storage temperature range would be from -50°C to 125°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of YM3802 are concluded as follow. (1)Its input low level voltage would be min -0.3V and max 0.8V. (2)Its input high level voltage would be min 2.0V and max Vdd+0.5V. (3)Its input leakage current would be max 10uA. (4)Its pull-up resistor would be min 100kohms and max 1000kohms. (5)Its output low level voltage would be min Vss and max 0.4V. (6)Its output high level voltage would be min 4.0V and max Vdd. (7)Its output leakage current would be max 10uA. (8)Its power supply current would be typ 6mA and max 10mA. And so on. If you have any question or suggestion or want to know more information of YM3802 please contact us for details. Thank you!