XR88C681
44 PLCC/
LCC
1=
40 DIP,
CDP
1<
1
16
<
1/
<
1>
<
1>
<
1=
<
1=
<1
1
<1
1
<<
<
28 DIP,
CDIP
6
/
>
=
Symbol Type Description
22
#,
..25
#,/
5*
#:
#,6
5*
#2
?$
#,<
5
#2#
?$
;
#
#
#
#
#
#
#
#
,B
Master Reset (Active High). %%(- (% ( '% (
-(%%" " #" #" ," ," $ ((((I%
#; / %%(- (% ( % %% .
(" % , ,> ( (- %" $ '%
%( ' % ( ('( % ( 5 $ 5*
% 3(- (-
Chip Select (Active Low). $ % (% (%$
(% C (- D %+% , $
( > $ (% CD
Input 2. (General Purpose Input). (% ( ( ' %
-$ +'( % C.( !
''3D ( ..25
Input 6 (I-Mode). 0 ,% # ( (% ( (
' % -$ +'( % 2! '(
'3 + * 5*
Interrupt Acknowledge Input (Z-Mode). '( 9
(% ( (% ,H% %% # E%
(%%$ & $(' B , %%% (%
(" ( ($('% H% ( E% (%
%('$" $ & ! '&' ( #
'3$- &' ( %$
,H% # '3$- & '(- '% +
# ;' -(% #; $ % >
Input 5 (I-Mode). 0 ,% # ( (% ( '
% '+(-$ +'( % ! ''3 ( +
%( + * 5*
Interrupt Enable Output (Z-Mode). '( 8(-
(% ( (% & C (- D 8" ( +
+(- '$((% ' '% (% (
-$ --$ CD
#+ #2# # 2 # ( (% CD #+ #2 (%
CD '% + #2# (" #2 ( -- C (- D '
#2# % --$ C (- D
% (%%$ # E% ,
#7 ( (% --$ CD #+ #2 (% CD '%
% E%$ #" #2 ( (
CD" - # (' (" (
, % (3$ CD '$
Input 4 (I-Mode). 0 ,% # ( (% ( (
' % '+(-$ +'( % ! ''3 (
+ '( + 5
Interrupt Enable Input (Z-Mode). '( 8(-
#+ (% '( (- ( (% -(' C (- D" (% '
+ -(- %3$ # E%%
, #+ (% ( (% -(' CD" (% ( (($
+ -(- & # E%% ,
Most Positive Power Supply.
>