8-bit CMOS Microcontroller

 

 

 

Features

 Fully compatible with the standard 8051 microcontroller

 Superset of the 8051 architecture with 8 datapointers

 Up to 20 MHz operating frequency

 375 ns instruction cycle time @ 16 MHz

 300 ns instruction cycle time @ 20 MHz (50% duty cycle)

 Program Memory

 32K bytes of on-chip OTP memory

 Externally expandable up to 64 Kbytes

 256-byte on-chip RAM

 256-byte on-chip XRAM

 Five 8-bit and one 6-bit digital I/O ports (Port 5 with 6 bits only)

 Port 1 with mixed analog/digital I/O capability

 Port 3 with 2 LCD output lines as secondary functions

 Port 4 and 5 with 8 and 6 LCD output lines respectively as secondary functions

 

 

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