8242AH Overview
UPI-41AH 42AH UNIVERSAL PERIPHERAL INTERFACE 8-BIT SLAVE MICROCONTROLLER Y Y UPI-41 6 MHz UPI-42 12 5 MHz Pin Software and Architecturally patible with all UPI-41 and UPI-42 Products 8-Bit CPU plus ROM OTP EPROM RAM I O Timer Counter and Clock in a Single.