CMOS single-chip 8-bit microcontroller

DESCRIPTION The P83C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. FEATURES • 80C51 central processing unit • 16k × 8 ROM expandable externally to 64k bytes • 256 × 8 RAM, expandable externally to 64k

CMOS single-chip 8-bit microcontroller

DESCRIPTION The 87C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C654 has the same instruction set as the 80C51. Two versions of the derivative exist: 83C654—16k bytes mask programmable ROM 87C654