參數(shù)資料
型號(hào): IDT7009
廠商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 128K x 8 DUAL-PORT STATIC RAM
中文描述: 高速128K的× 8雙端口靜態(tài)RAM
文件頁(yè)數(shù): 11/17頁(yè)
文件大小: 143K
代理商: IDT7009
6.42
IDT7009L
High-Speed 128K x 8 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
4839 drw 11
t
DW
t
APS
ADDR
"A"
t
WC
DATA
OUT "B"
MATCH
t
WP
R/
W
"A"
DATA
IN "A"
ADDR
"B"
t
DH
VALID
(1)
MATCH
BUSY
"B"
t
BDA
VALID
t
BDD
t
DDD
(3)
t
WDD
$;<;A59922
BUSY
*:
S
%4
6+
#
!C!'#
$;<;A5
BUSY
*:
S
%4
6D
#
NOTES:
1. To ensure that the earlier of the two ports wins. t
APS
is ignored for M/
S
= V
IL
(SLAVE).
2.
CE
L
=
CE
R
= V
IL,
refer to Chip Enable Truth Table.
3.
OE
= V
IL
for the reading port.
4. If M/
S
= V
IL
(SLAVE),
BUSY
is an input. Then for this example
BUSY
"A" = V
IH
and
BUSY
"B" input is shown above.
5. All timng is the same for left and right ports. Port "A" may be either the left or right port. Port "B" is the port opposite fromport "A".
NOTES:
1. t
WH
must be met for both
BUSY
input (SLAVE) and output (MASTER).
2.
BUSY
is asserted on port "B" blocking R/W
"B"
, until
BUSY
"B"
goes HIGH.
3. t
WB
is only for the 'Slave' version.
4839 drw 12
R/
W
"A"
BUSY
"B"
t
WP
t
WB
(3)
R/
W
"B"
t
WH
(1)
(2)
.
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