D80C51 Overview
87C51 80C51BH 80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER mercial Express 87C51 80C51BH 80C51BHP 80C31BH See Table 1 for Proliferation Options Y Y Y High Performance CHMOS EPROM 24 MHz Operation Improved Quick-Pulse Programming Algorithm 3-Level Program.