80C186EA Datasheet, PDF (50/50 Pages) Intel Corporation – 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS

80C186EA 80C188EA 80L186EA 80L188EA
REVISION HISTORY
Intel 80C186EA 80L186EA devices are marked with
a 9-character alphanumeric Intel FPO number un-
derneath the product number This data sheet up-
date is valid for devices with an ‘‘A’’ ‘‘B’’ ‘‘C’’ ‘‘D’’
or ‘‘E’’ as the ninth character in the FPO number as
illustrated in Figure 5 for the 68-lead PLCC package
Figure 6 for the 84-lead QFP (EIAJ) package and
Figure 7 for the 80-lead SQFP device Such devices
may also be identified by reading a value of 01H
02H 03H from the STEPID register
This data sheet replaces the following data sheets
272019-002
272020-002
272021-002
272022-002
272307-001
272308-001
80C186EA
80C188EA
80L186EA
80L188EA
SB80C186EA SB80L186EA
SB80C188EA SB80L188EA
ERRATA
An 80C186EA 80L186EA with a STEPID value of
01H or 02H has the following known errata A device
with a STEPID of 01H or 02H can be visually identi-
fied by noting the presence of an ‘‘A’’ ‘‘B’’ or ‘‘C’’
alpha character next to the FPO number The FPO
number location is shown in Figures 5 6 and 7
1 An internal condition with the interrupt controller
can cause no acknowledge cycle on the INTA1
line in response to INT1 This errata only occurs
when Interrupt 1 is configured in cascade mode
and a higher priority interrupt exists This errata
will not occur consistantly it is dependent on in-
terrupt timing
An 80C186EA 80L186EA with a STEPID value of
03H has no known errata A device with a STEPID of
03H can be visually identified by noting the presence
of a ‘‘D’’ or ‘‘E’’ alpha character next to the FPO
number The FPO number location is shown in Fig-
ures 5 6 and 7
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