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 bidirectiona
www.DataSheet4U.com 8XC52 54 58 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial Express 87C52 80C52 80C32 87C54 80C54 87C58 80C58 See Table 1 for Proliferation Options Y High Performance CHMOS EPROM ROM CPU 12 24 33 MHz Operations Three 16-Bit Timer Counters Programmable Clock Out Up Down Timer Counter Three Level Program Lock System 8K 16K 32K On-Chip Program Memory 256 Bytes of On-Chip Data RAM Improved Quick Pulse Programming Algorithm Boolean Processor 32 Programmable I O Lines Y Y 6
LD87C58 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 8X
