AM186ED-20KCSLASHW datasheet(57/88 Pages) AMD

部品番号	AM186ED-20KC/W

部品情報	High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers

PDF	88 Pages

Scroll/Zoom	100%

メーカー	AMD [Advanced Micro Devices]

ホームページ	http://www.amd.com

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57 / 88 page

Am186ED/EDLV Microcontrollers

PRELI M INARY

F T

COMMERCIAL AND INDUSTRIAL SWITCHING CHARACTERISTICS AND WAVEFORMS

In the switching waveforms that follow, several

abbreviations are used to indicate the specific periods

of a bus cycle. These periods are referred to as time

states. A typical bus cycle is composed of four

consecutive time states: t1, t2, t3, and t4. Wait states,

which represent multiple t3 states, are referred to as tw

states. When no bus cycle is pending, an idle (ti) state

occurs.

I n the swit ching p a r amet er d e scr iptio n s, the

multiplexed address is referred to as the AD address

bus; the

demultiplexed address is referred to as the A

address bus.

Key to Switching Waveforms

Must be

Steady

May

Change

from H to L

May

Change

from L to H

Does Not

Apply

Don’t Care,

Any Change

Permitted

Will be

Steady

Will be

Changing

from H to L

Will be

Changing

from L to H

Changing,

State

Unknown

Center

Line is High-

Impedance

Off State

WAVEFORM

INPUT

OUTPUT

Invalid

AM186ED-20KC/W データシート(PDF) 57 Page - Advanced Micro Devices

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