LD87C52 microcontroller equivalent, chmos single-chip 8-bit microcontroller.
make it an even more powerful microcontroller for applications that require clock output and up down counting capabilities such as motor control It also has a more versat.
that require clock output and up down counting capabilities such as motor control It also has a more versatile serial ch.
VCC Supply voltage VSS Circuit ground VSS1 Secondary ground (not on DIP) Provided to reduce ground bounce and improve power supply by-passing NOTE This pin is not a substitute for the VSS pin (pin 22) (Connection not necessary for proper operation ).
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