WS
!
!
WS62256
4.5V~5.5V
Operation
voltage Vcc:
! #"$%$! ,(-%'(+
,,./0& 1$
./0&
,,./0& 1$ '!, !(
/0& 1
/0&
/0& 1 !&2, !(
/#%1 0-&(23#, !(
/#%1 0-&(23#,
#%
4'*5-%!!2&,,!--'!+
70ns (
0& 1
0& 1
-70
&',%$! 2$($5!(,5'%'-2!-!"!,!2
5 !!-&!%-
6""#-&',%! &'(
7&& !!('(-%%"#)"&*!&-"$&-
&-#! %&(-'($'5 &(2 %'(-
""8%'(-& !"! &(
The WS62256
is a high performance , very low
power CMOS
&',;&(2,,!--0! # *&('<!2&- :$ 2-3#3'-
*&('<!2&- :
2-
#"$
&(2%! &!-9 &()! #"$
range
of 4.5V to 5.5V
supply
)"&*!
2)&(,!2 0!,5("*#&(2,' ,'!,5('=!-% )'2!355'*5
-%!!2&(2"$%$! 9!& !-$'5&#%',&" 0-&(23#, !(9
0.4uA and maxinum
access time of 70ns in5V operation
&-#
#
)'2!23#&(&,')!>?
&-#! #! %&(-'('-% )'2!23#&(&,')!>?,5'%
!(&3"!/ 1:&(2&,')!>?%
!(&3"!/ 1:&(2&,')!>?%!(&3"!/ 1&(25 !!
-&!
%2 ')! -
The WS62256 has an automatic power down feature, reducing the
%$! ,(-%'(-'*('9',&("#$5!(,5'%'-2!-!"!,!2
WS62256 is
&)&'"&3"!'(5!@ 7 -&(2& 2%'(
5!
&)&'"&3"!'(
5!
330mil
"&-', :&(2
600mil plastic DIP
"
"&-', :&(2
PRODUCT FAMILY
PRODUCT
FAMILY
OPERATING
TEMPERATURE
Vcc
(V)
SPEED
POWER DISSIPATION
STANDBY(Iccs
B
1,Max)
Operating (Icc,Max)
(ns)
PKG TYPE
Vcc=5.0V
Vcc=5.0V
WS62256LLP
WS62256LLFP
DIP-28
0 C~+70 C
o
o
4.5V~5.5V
70ns
1uA
45mA
SOP-28
PIN CONFIGURATION
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
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
V
CC
WE
A13
A8
A9
A11
OE
A10
__
CE
DQ7
DQ6
DQ5
!
*
+
$
-
,
-
)%
)
)
)$
)+
)
)
)*
-
-
!!"
#
+
-
-
DQ4
DQ3
GND
(
(
(
'
&
+ $ % %
DIP-28
SOP-28
WINGSHING Co. reserves the right to modify document contents without notice.
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage:
http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
9-1
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