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XR68C681J-F Datasheet, PDF (5/75 Pages) Exar Corporation – CMOS Dual Channel UART(DUART) | |||
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XR68C681
PIN DESCRIPTION (CONTâD)
Pin Number
(44 pin PLCC)
@
<
1
=
6
/
@
<
1
1
1
Pin Number
(40 pin DIP)
6
/
@
<
1
=
6
/
@
<
Symbol
Type Description
,@
5ED
1
6
@
08
8
#8
/
=
,/
5ED
,=
5E.
::D
,
5
D5
5
D/5
,
Output 7.
-
% (% (
'
%
'
+(-$
$(
'( '
5E
#. Three State Data Bus.
#. Three State Data Bus.
#. Three State Data Bus.
#. MSB of Eight Bit Three State Data Bus.
%+%
,
$
3 ' $ % '
%(%% + (
% @ % (% %$
(
(% (- " !' $(
-
#
7 '&'
Ground. +
'
No Connect.
Interrupt Request.
'( :"
(
#8 (% %%$
''
' +
+ ' (.% %3
(
(
- '
$((
% (% %(-
( (
%%$
- (
%(' (
$ (
-$
' '
$((
% '%(
- (
C% %
((
$
#. Three State Data Bus.
#. Three State Data Bus.
#. Three State Data Bus.
#. LSB of the Eight Bit Three State Data Bus.
%+%
,
$ )
3 ' (% %
% (% %$
(
(% (- " !' $(
-
#
7 '&'
Output 6.
-
% (% (
'
%
'
+(-$
'("
$(
'
5E 5ED
Output 4.
-
% (% (
'
%
'
+(-$
$(
'
5E. ::
'(
Output 2.
-
% (% (
'
%
'
+(-$ ( 5 /5 ''3 + '
%(
Output 0.
-
% (% (
'
%
'
+(-$ '(
C%
$
6
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