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| Datasheet File OCR Text: |
| ! "#$% & '' () *+, -) '' ) )) %. /) ! " # $ %& ' & #(% %&" )% *+*, - . $( % ( % %$ % /0), - %$ . " 1 ((2% % . $ %&% .3 ) , - %$ %% .3 ) $ $ 1%, - %$ " .3 )) 1%, - % %& % %&# ((" % ( 42 ! % /( 56"7(( 5 8&" a0-a14 cs oe we 32k x 8 memory array decoder column i/o control circuit gnd vcc i/o data circuit i/o0-i/o7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 a14 a12 a7 a6 a5 a4 a3 a2 a1 a0 i/o0 i/o1 i/o2 gnd vcc we a13 a8 a9 a11 oe a10 cs i/o7 i/o6 i/o5 i/o4 i/o3 9 ( %9 & +:; ( $>%? < = @ &( $ < = / @ 5 5; % 0 ) ; $ $ $% ,3 )- / (! ! " #! $ ! " $ #! ! % # ! " ! $ "!$! "&" % & ! $ & " $$! % 22 23 24 25 26 27 28 1 2 3 4 5 6 7 21 20 19 18 17 16 15 14 13 12 11 10 9 8 oe a11 a9 a8 a13 we vcc a14 a12 a7 a6 a5 a4 a3 a10 cs i/o7 i/o6 i/o5 i/o4 i/o3 gnd i/o2 i/o1 i/o0 a0 a1 a2 !/!7 ! %$ %$ $ $ 1%%$ ) 1%%$ a /a %$ a $ $ 9 5 +:; +$% : b * b * &c ,5%- $ $ ; * 3 * * &c * 3 3 ; ) 3 3 b ; (( /@ =/@ 9d/e %$ <7/@ = @ 9d/e %$ % 9 f/9 g $ $ % 9 f/9 / g $ " !! $$! " ' ! ( )'*+,-$)./-0!!)*10 $$.1. !"# !$% 9 %& 9 f 2" f9 (" h / h / (! $ $% f/(!#f/ %" h / h / 9 ;%( %& 9 f 2" f9 (" h / h (! $ $% f/(!#f# %" h / h 3 % $% 9 f 2" (" h h (! ,3%$ - 9 f9 9 %" h / h / 9 #f/ % 9 f 2" (" h /" h /" (! $% , %$ - 9 </" 9 %" h "/ h "/ 9 9 </" 9 9 /" 9#f/ $)$ - " ! ! & $2 ! -$)1 " ! 9 $ $ *+*9 & 9 f %" f<"/(! "7 h 9 9 $ $ 3 )9 & 9 f %" f "(! h /"7 9 9 %$ *+*9 & " 9 =/" 9 9 %$ 3 )9 & (" < 0! %" </ / $ $ 38& +:; 9 9 (" < 0! $ $ ; %" </ / 0 )3410$ "5 1 7 %$ 5$ 3. /9 "/9 %$ %g ( % %$ % $ $ ( %& " 9 % #% 3. $ $ 3 g &$ % , . %& %&- !"# !$% ( 7 h / h % ! ! ( h 7 h / % $ $ * ( h h % ! ( h 7 h / % ! ( h h % 3c $ $ / h / h % * &c $ $ / / / % 3c $ $ h h % * &c $ $ / / / % 5> / h / h % 5;% h / h / % ! $* - $ !# $*0- ""# $1 4 10 " "!$ 6 ' 5 6 ' 7*11 0$ 8 # 119 4 119 & ' & ( 480 ? 100 pf including jig and scope 255 ? output 5v 480 ? 5 pf including jig and scope 255 ? output 5v data valid previous data valid t aa t oha t oha t rc d out address t rc t oha t aa t doe t lzoe t acs t lzcs t hzoe high-z data valid address oe cs d out t hzcs . .$ , ! ' #!! ! - )0 4 # " ! ! 5 : , . %& %&- !"# !$% ) ( 7 h / h % ) 1% h / h % ! $ ( ) 1% h / h % ! *#() 1% h h % ! $ ( / h / h % 5$ ) h h % ; $ ) 1% / h / h % ; *#() 1% / h / h % ! $* - $ !# $*0- ""# $1 4 10 " "!$ 6 ' 5 6 ' 7*11 0$ 8 # 119 4 5 $ % # " $ : : % # :-% ! !# : ; "" . $ ! $ $ 5 < 5 . . , % *+*3 )- data undefined t wc valid address t scs t pwe1 t pwe2 t aw t ha high-z t hd t sa t hzwe address cs we d out d in data in valid t lzwe t sd , *+*;$ %&) - data undefined low t wc valid address t pwe1 t aw t ha high-z t hd t sa t hzwe address cs we d out d in oe data in valid t lzwe t sd , 3 );$ %&) - data undefined t wc valid address low low t pwe2 t aw t ha high-z t hd t sa t hzwe address cs we d out d in oe data in valid t lzwe t sd 5 $ % # " $ : : % # :-% ! !# : ; "" . $ ! $ $ 5 ' =5 . 8> $ 0 / 9 #; % % ; % %).#( "/ " 9 ; % % $% 9 f"/9 9 </" 9 (" h / 0! %" h // ; % % $ ( ; % %).#( / h % . ( ; % %).#( h% ? , @ v cc ce v cc - 0.2v t sdr t rdr v dr ce gnd 5.0v 3.0v data retention mode i !"#$#%& '() * +,() ) * + , 7 7 6"7(( 5 7 > /( 5 / / 6"7(( 5 /> /( 5 %-./* !#$#%& '01() * +23) ) * + , 7 7 6"7(( 5 7 > /( 5 / / 6"7(( 5 /> /( 5 ! "#$ !!! "" " %! % & %'! "( & 4**5'66777!"/!" *7 / |
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