View source for MN6221

'''Melody-Alarm Generator'''

=Pinout=
<pre>
DIP18
         +---\/---+
     Vdd | 1    18| Vss
      NO | 2    17| MI3
      PO | 3    16| MI2
      SI | 4    15| MI1
     SO1 | 5    14| EV2
     SO2 | 6    13| EV1
    TST1 | 7    12| OSC3
    TST2 | 8    11| OSC2
    ALON | 9    10| OSC1
         +--------+
</pre>

=Frequency=
'''DIP18'''<br>
Set reader to FREQ, put black probe to GND, red probe to 10,11 and 12 to measure CPU clock

=External links=

=Files=
<gallery widths="150px">
File:mn6221.pdf|MN6221 Datasheet
</gallery>

[[Category:Sound Chips]]
[[Category:DIP18-300mil]]