November 1994

Order Number 210393-008

UPI-41AH42AH

UNIVERSAL PERIPHERAL INTERFACE

8-BIT SLAVE MICROCONTROLLER

Y

UPI-41 6 MHz UPI-42 125 MHz

Y

Pin Software and Architecturally

Compatible with all UPI-41 and UPI-42

Products

Y

8-Bit CPU plus ROMOTP EPROM RAM

IO TimerCounter and Clock in a

Single Package

Y

2048 x 8 ROMOTP 256 x 8 RAM on

UPI-42 1024 x 8 ROMOTP 128 x 8

RAM on UPI-41 8-Bit TimerCounter 18

Programmable IO Pins

Y

One 8-Bit Status and Two Data

Registers for Asynchronous Slave-to-

Master Interface

Y

DMA Interrupt or Polled Operation

Supported

Y

Fully Compatible with all Intel and Most

Other Microprocessor Families

Y

Interchangeable ROM and OTP EPROM

Versions

Y

Expandable IO

Y

Sync Mode Available

Y

Over 90 Instructions 70% Single Byte

Y

Available in EXPRESS

Standard Temperature Range

Y

inteligent Programming Algorithm

Fast OTP Programming

Y

Available in 40-Lead Plastic and 44-

Lead Plastic Leaded Chip Carrier

Packages

(See Packaging Spec Order

240800-001)

Package Type P and N

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

210393 – 2

Figure 1 DIP Pin Configuration

210393 – 3

Figure 2 PLCC Pin Configuration