XR88C681
44 PLCC/
LCC
<
40 DIP,
CDP
6
1
/
<
>
6
=
/
>
=
1
<
6
/
1
>
<
=
6
/
28 DIP,
CDIP
1
<
6
/
>
=
Symbol Type Description
,
*
,1
5*.5
5*.5
..G
,6
5G.
99.*
,>
5G.*
1
6
>
07
7
#7
/
<
,/
5G.
#.
#.
#.
#.
,B
#.
#.
#.
#.
Output 1 (General Purpose Output). (% ' %
-$ +'( % '(" C *
E%$D *
Output 3 (General Purpose Output). (% '
% -$ +'( %4 C * %
( 5 ''3D 5*.5" C * '(
5 ''3D 5*.5" $(" '(
C.( $&D ..G
Output 5 (General Purpose Output Pin). (%
( ' % -$ +'( % $("
'(" * C'( $&D C'( #
D ($(' 5G.*. 99.*
Output 7. (General Purpose Output Pin). (%
( ' % -$ +'( % $("
'(" C%( $&D ($(' +
* 5G.*
Bi-Directional Data Bus.
Bi-Directional Data Bus.
Bi-Directional Data Bus.
MSB of the Eight Bit Bi-Directional Data Bus. %+%
, $ 3 ' (% %
'%(%(- + (% > % (% (%$
( (% C (- D" !' $(- #: '&' ( ?
$
Signal Ground.
No Connect.
Interrupt Request Output (Active Low, Open Drain).
#7 (% %%$ ''' + +
' (H% %3 ((- '$((% (% %(- (
( %%$ - # (' ( $
( -$ ' '$((% '%(- #
E% % (($
Bi-Directional Data Bus.
Bi-Directional Data Bus.
Bi-Directional Data Bus.
LSB of the Eight Bit Bi-Directional Data Bus. %+%
, $ 3 ' (% %
% (% (%$ ( (% C (- D" !'
$(- #: '&' ( ?$
Output 6 (General Purpose Output). (% ( '
% -$ +'( % $(" '(
" C%( $&D ($(' +
5G.
6