80C186XL Datasheet, PDF (39/48 Pages) Intel Corporation – 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS

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
T_CLAV
T_CHLH
T_CLCSV
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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