AM186EM-20KC/W AMD [Advanced Micro Devices], AM186EM-20KC/W Datasheet

AM186EM-20KC/W

Manufacturer Part Number

AM186EM-20KC/W

Description

High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

Manufacturer

AMD [Advanced Micro Devices]

Datasheet

1.AM186EM-20KCW.pdf (98 pages)

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Am186

High Performance, 80C186-/80C188-Compatible and

80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

DISTINCTIVE CHARACTERISTICS

GENERAL DESCRIPTION

The Am186

controllers are the ideal upgrade for 80C186/188 and

80L186/188 microcontroller designs requiring 80C186/

188 and 80L186/188 microcontroller compatibility, in-

creased performance, serial communications, and a di-

r e c t b u s i n t e r f a c e . T h e A m 1 8 6 E M / E M L V a n d

Am188EM/EMLV microcontrollers increase the perfor-

mance of existing 80C186/188 and 80L186/188 sys-

tems while decreasing their cost.

The Am186EM/EMLV and Am188EM/EMLV microcon-

trollers are part of the AMD E86 family of embedded mi-

crocontrollers and microprocessors based on the x86

architecture. The E86 family includes the 16- and 32-bit mi-

crocontrollers and microprocessors described on page 8

The Am186EM/EMLV and Am188EM/EMLV microcon-

trollers integrate the functions of the CPU, nonmulti-

plexed address bus, timers, chip selects, interrupt

This document contains information on a product under development at Advanced Micro Devices. The information

is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed

product without notice.

E86

microcontrollers with enhanced bus interface

— Lower system cost with higher performance

— 3.3- V ±.3 -V ope ra tio n (A m1 86E MLV and

High performance

— 20-, 25-, 33-, and 40-MHz operating frequencies

— Supports zero-wait-state operation at 25 MHz

— 1-Mbyte memory address space

— 64-Kbyte I/O space

New features provide faster access to memory and

remove the requirement for a 2x clock input

— Nonmultiplexed address bus

— Phase-locked loop (PLL) allows processor to

New integrated peripherals provide increased

functionality while reducing system cost

— Thirty-two programmable I/O (PIO) pins

Am188EMLV microcontrollers)

with 110-ns static memory (Am186

Am188

with 70-ns static memory (Am186

Am188

operate at the clock input frequency

PRELIMINARY

family 80C186- and 80C188-compatible

EM/EMLV and Am188

EM microcontrollers)

EMLV microcontrollers) and 40 MHz

EM/EMLV and Am188

EM/EMLV micro-

EMLV and

EM and

controller, DMA controller, PSRAM controller, asynchro-

nous serial port, synchronous serial interface, and pro-

grammable I/O (PIO) pins on one chip. Compared to the

80C186/188 and 80L186/188 microcontrollers, the

Am186EM/EMLV and Am188EM/EMLV microcontrol-

lers enable designers to reduce the size, power con-

sumption, and cost of embedded systems, while

increasing functionality and performance.

The Am186EM/EMLV and Am188EM/EMLV microcon-

trollers have been designed to meet the most common

requirements of embedded products developed for the

office automation, mass storage, communications, and

general embedded markets. Specific applications in-

clude disk drives, hand-held terminals and desktop ter-

minals, fax machines, printers, photocopiers, feature

phones, cellular phones, PBXs, multiplexers, modems,

and industrial controls.

— Asynchronous serial port allows full-duplex, 7-bit

— Synchronous serial interface allows half-duplex,

— Pseudo static RAM (PSRAM) controller includes

— Reset configuration register

Familiar 80C186/80L186 peripherals

— Two independent DMA channels

— Programmable interrupt controller with six

— Three programmable 16-bit timers—timer 1 can

— Programmable memory and peripheral

— Programmable wait state generator

— Power-save clock divider

Software-compatible with the 80C186/80C188

and 80L186 /80L188 microcontrollers

Widely available native development tools,

applications, and system software

Available in the following packages:

— 100-pin, thin quad flat pack (TQFP)

— 100-pin, plastic quad flat pack (PQFP)

or 8-bit data transfers

bidirectional data transfer to and from ASICs

auto refresh capability

external interrupts

be used as a watchdog interrupt timer

chip-select logic

EM/EMLV

Publication# 19168

Issue Date: February 1997

Rev: E Amendment/0

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