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