UNIVERSAL PERIPHERAL INTERFACE 8-BIT SLAVE MICROCONTROLLER

The Intel UPI-41AH and UPI-42AH are general-purpose Universal Peripheral Interfaces that allow the designer to develop customized solutions for peripheral device control.
They are essentially ‘‘slave’’ microcontrollers, or microcontrollers with a slave interface included on the chip. Interface registers are included to enable the UPI device to function as a slave peripheral controller in the MCS Modules and iAPX family, as well as other 8-, 16-, and 32-bit systems.
To allow full user flexibility, the program memory is available in ROM and One-Time Programmable EPROM (OTP). All UPI-41AH and UPI-42AH devices are fully pin compatible for easy transition from prototype to production level designs.

UPI-41: 6 MHz; UPI-42: 12.5 MHz
Pin, Software and Architecturally Compatible with all UPI-41 and UPI-42 Products
8-Bit CPU plus ROM/OTP EPROM, RAM, /O, Timer/Counter and Clock in a Single Package
2048 x 8 ROM/OTP, 256 x 8 RAM on UPI-42, 1024 x 8 ROM/OTP, 128 x 8 RAM on UPI-41, 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
Interchangeable ROM and OTP EPROM Versions
Expandable I/O
Sync Mode Available
Over 90 Instructions: 70% Single Byte
Available in EXPRESS
 - Standard Temperature Range
inteligent Programming Algorithm
 - Fast OTP Programming
Available in 40-Lead Plastic and 44-Lead Plastic Leaded Chip Carrier Packages