LD87C52 - Intel

LD87C52 (LD87C52 - LD87C58) CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

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 ) Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink several LS TT.

Features

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 versatile serial channel that facilitates multi-processor communications Throughout this document 8XC5X will refer to the 8XC52 80C32 8XC54 and 8XC58 unless information applies to a specific device Other brands and names are the property of their respective owners Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or copyright for sal.