XR82C684CJ-F View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR82C684CJ-F

CMOS Quad Channel UART (QUART)

Exar Corporation 

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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

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