R80C188XL20 查看數據表（PDF） - Intel

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R80C188XL20

16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS

Intel 

80C186XL 80C188XL

EXPLANATION OF THE AC SYMBOLS

Each timing symbol has from 5 to 7 characters The first character is always a ‘T’ (stands for time) The other

characters depending on their positions stand for the name of a signal or the logical status of that signal The

following is a list of all the characters and what they stand for

A Address

ARY Asynchronous Ready Input

C Clock Output

CK Clock Input

CS Chip Select

CT Control (DT R DEN )

D Data Input

DE DEN

H Logic Level High

OUT Input (DRQ0 TIM0 )

L Logic Level Low or ALE

O Output

QS Queue Status (QS1 QS2)

R RD Signal RESET Signal

S Status (S0 S1 S2)

SRY Synchronous Ready Input

V Valid

W WR Signal

X No Longer a Valid Logic Level

Z Float

Examples

TCLAV

TCHLH

TCLCSV

Time from Clock low to Address valid

Time from Clock high to ALE high

Time from Clock low to Chip Select valid

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