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XR88C681 Datasheet, PDF (6/99 Pages) Exar Corporation – CMOS DUAL CHANNEL UART (DUART) | |||
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XR88C681
44 PLCC/
LCC
1
40 DIP,
CDP
>
28 DIP,
CDIP
1
=
1
11
1
1<
16
1
1/
1
1
1>
11
<
Symbol
,<
5G.
99.
,
5
./
5
5
5
.5
,
5
7
5
5.9:
5
Type Description
Output 4 (General Purpose Output). (% (
'
% -$ +
'(
%
$(
"
'(" C'( $&D C # D (
$('
+
5G.
. 99.
Output 2 (General Purpose Output). (% (
'
% -$ +
'(
%
& + +
(
-4
%( /5 5 ''3
5
./5 5
.5"
'( 5 ''3 5
.5
Output 0 (General Purpose Output). (% (
'
% -$ +
'(
% '("
E%
$ +
Transmitter Serial Data Output (Channel A).
% %(-
(+('
( + ' ' (%
%($ +(%
(% (% $ (
3(
- (- %
%( (% ($" $(%$" (
- (
9'
9,*
: $ #+
!
%( ''3 (%
%'(+($" 5
" $ (% % (+$ +
%( (+ -(%
+(
- $- +
''3
No Connect.
# Receive Serial Data Input (Channel A). %
%(-
(+('
( + ' ' (% '($ +(% #+
!
'( ''3" 5
" (% %'(+($" $ (%
%$
(%(
- $- + ''3
# Crystal Output of External Clock Input. (% (
(%
'
'(
+
%($ + '&%
$ ''(
-
$
(
%'( (% %$ #+
%'( (%
%$"
!
''3 %(-
%
%($ (% (
#
$ + 5==/= $(' +
'(
&"
% % %& %(-
( +E
'(%
8I
$ <8I (% E(
'
& ( '&% %'( & !
9'( ''3 %(-
Crystal Input.
'(
+
%($ + '&%
%( + 5.9: #+ %'( (% %$"
''( % % '
'$ + (% (
-
$ (% (
% +
(+
!
''3
(% %($ 5.9:
/
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