The Intel 8742 is a general-purpose Universal Peripheral Interface that allows designers to grow their own customized solution for peripheral device control. It contains a low-cost microcomputer with 2K of program memory, 128 bytes of data memory, 8-bit timer/counter, and clock generator in a single 40-pin package. Interface registers are included to enable the UPI device to function as a peripheral controller in the MCSÉ-48, MCS-51, MCS-80, MCS-85, 8088, 8086 and other 8-, 16-bit systems.

8742: 12 MHz
Pin, Software and Architecturally Compatible with 8741A
8-Bit CPU plus ROM, RAM, I/O, Timer and Clock in a Single Package
2048x8 EPROM,128x8RAM, 8-Bit Timer/Counter, 18 Programmable I/O Pins
One 8-Bit Status and Two Data Registers for Asynchronous Slave-to Master Interface
DMA, Interrupt, or Polled Operation Supported
Fully Compatible with all Intel and Most Other Microprocessor Families
Expandable I/O
RAM Power-Down Capability
Over 90 Instructions: 70% Single Byte
Available in EXPRESS
   -Standard Temperature Range