XR82C684CJ-F Datasheet, PDF (13/107 Pages) Exar Corporation – CMOS Quad Channel UART(QUART)

XR82C684
AC ELECTRICAL CHARACTERISTICS ^{1, 2, 3} (CONT’D)
Symbol
Parameter
Min. Typ. Max. Unit Conditions
XR82C684 Read, Write and Interrupt Cycle Timing -68 Mode (Figure 59, Figure 60 and Figure 61) (Cont’d)
_!;
!
= ;(, *  
  $
=
;(,

%
_!
!
= ;(, $ ' * 

  $
= ;(,
9
%
Port Timing - XR82C684 (Figure 62) ⁷
_+
+  $   (  !-

%

 < 3
_+;
+  $  ;  ( *  !-

%

 ;(,
_+!
+   >( *  E-

;(,
@
%
Interrupt Output Timing - XR82C684 (Figure 63)
_$
$:  +4  +B 3  %
% $ % ;(, * 7

 * $ % % )(% (
$  $+


 * $  %6 ( $
4
%
4
%
Clock Timing (Figure 64)

_<=
8-
<= 5"  ;(,  < 3

%
(

_<=
8-
<=
&%  5" 
I '&
 4.0@ B4B ;J

_


 -( 5" 
 '6

%
;(,  < 3 ( $+

_


 -( 5" 
 '6

I '&
B4B ;J
_8
8
  8
5"  ;(,

%
 < 3 (^
*_8
8
  8
5" 
I '&
.8

8

.
;J

;J
Transmitter Timing (Figure 65)
_8!
8!  !&  8

5"  < 3
49
%
_

8!  !&  8

$  
9
%
 
4