EE290: Introduction to EE290: Introduction to MicrocontrollersMicrocontrollers

Spring 2002

Martin D. Fox

M.D., Ph. D.

AgendaAgenda

Definition of Microcontrollers and Embedded Microprocessors

Components Microcontroller Market Key Suppliers

Overview Overview Microcontrollers - a key impact technology

for the 21st century Microcontrollers.com: “In the aggregate,

PC microprocessors are responsible for less than 1% of all processors sold. Embedded processors outsell PC processors by more than 99%.”

Today: Brief overview

Microcontrollers and Microcontrollers and Embedded ControllersEmbedded Controllers

Controls some process or aspect of the environment: Microcontrollers Vs. DSPs

DSPs optimized for math [multiplies] Embedded controller may not be a microcontroller

per se but is used for special purpose control application

Typical applications: temperature control, smart instrument, GPS, digital lock, cell phone, etc. .

Exercise: write down five µController based devices

ExamplesExamples Personal information products: Cell phone, pager,

watch, pocket recorder, calculator Laptop components: mouse, keyboard, modem,

fax card, sound card, battery charger Home appliances: door lock, alarm clock,

thermostat, air conditioner, tv remote, hair dryer, VCR, small refrigerator, exercise equipment, washer/dryer, microwave oven

Toys; video games, cars, dolls, etc.

Microcontroller FamiliesMicrocontroller Families

Most manufacturers offer a wide range of devices for low end to higher end applications

Microcontroller.com, “In January 2000, Microchip shipped its one billionth 8-bit PIC microcontroller.”

Example : Microcontroller Manufacturers Embedded systems and gizmos Characteristics of the PIC 16F87x

16F87x16F87xFamily:Family:

FeaturesFeatures

Typical Typical MicroMicro

Controller Controller ElementsElements

From: PIC16F87x data sheet

MicrocontrollersMicrocontrollers

Processing power: 4 bit, 8 bit, 16 bit, 32 bit Microcontrollers.com: “The highest rate of

new product success is in the 8-bit microcontroller market. The lowest rate of success is in the 64- and 32-bit microcontroller markets.”

Specific features: communications, keyboard handling, signal processing, video processing

Microcontroller MarketMicrocontroller Market

Shipments- > 16 Billion in 2000, 8 bit > 1/2 market

Major Players: Microchip 16Fxx, Intel 8051, Motorola MC68HC05, National COP800, SGS/Thomson ST62, Zilog Z86Cxx: 8 bit comparison

Speed comparisonSpeed comparison

From: Mark Palmer, AN520 A Comparison of 8 bit Microcontrollers, Microchip AN, 1995.

ShipmentsShipments

1990 1992 1994 1996 1998 20000

5000

10000

1990 1992 1994 1996 1998 2000

Worldwide Microcontroller Shipments in Millions of Dollars4-bit

8-bit

16-bit

16F87x 16F87x Instruction Instruction

SetSet[35][35]

P1P1

P1-P1-22

SummarySummary

Microprocessors and embedded controllers are a ubiquitous part of life today

These devices come in a wide variety of configurations and designs

Headhunters report that EEs familiar with µC, µP design are in the highest possible demand

Feedback

More InformationMore Information

In the next session we will explore in more depth key features of µControllers

All major Manufacturers have web sites