TN80C188EB20

MPU 186 Processor 16Bit 20MHz 84Pin PLCC

INTRODUCTION

Unless specifically noted, all references to the 80C186EB apply to the 80C188EB, 80L186EB, and

80L188EB. References to pins that differ between the 80C186EB/80L186EB and the 80C188EB/

80L188EB are given in parentheses. The ``L"" in the part number denotes low voltage operation. Physically and functionally, the ``C"" and ``L"" devices are identical.

Full Static Operation

True CMOS Inputs and Outputs

Integrated Feature Set

  Low-Power Static CPU Core

  Two Independent UARTs each with

an Integral Baud Rate Generator

  Two 8-Bit Multiplexed I/O Ports

  Programmable Interrupt Controller

  Three Programmable 16-Bit

Timer/Counters

  Clock Generator

  Ten Programmable Chip Selects with

Integral Wait-State Generator

  Memory Refresh Control Unit

  System Level Testing Support ONCE

Mode

Direct Addressing Capability to 1 Mbyte

Memory and 64 Kbyte I/O

Speed Versions Available 5V:

  25 MHz 80C186EB25/80C188EB25

  20 MHz 80C186EB20/80C188EB20

  13 MHz 80C186EB13/80C188EB13

Available in Extended Temperature

Range b40§Ctoa85§C

Speed Versions Available 3V:

 16 MHz 80L186EB16/80L188EB16

 13 MHz 80L186EB13/80L188EB13

 8 MHz 80L186EB8/80L188EB8

Low-Power Operating Modes:

 Idle Mode Freezes CPU Clocks but

keeps Peripherals Active

 Powerdown Mode Freezes All

Internal Clocks

Supports 80C187 Numeric Coprocessor

Interface 80C186EB PLCC Only

Available In:

 80-Pin Quad Flat Pack QFP

 84-Pin Plastic Leaded Chip CarrierPLCC

 80-Pin Shrink Quad Flat Pack SQFP