參數(shù)資料
型號: IDT7028L20PF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 64K x 16 DUAL-PORT STATIC RAM
中文描述: 64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
文件頁數(shù): 9/17頁
文件大小: 150K
代理商: IDT7028L20PF
6.42
IDT7028L
High-Speed 64K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
$:;14/:$!741/
#
NOTES:
1. D
OR
= D
OL
= V
IL
,
CE
L
=
CE
R
= V
IH
or both
UB
and
LB
= V
IH
(Refer to Chip Enable Truth Table).
2. All timng is the same for left and right ports. Port "A" may be either left or right port. "B" is the opposite fromport "A".
3. This parameter is measured fromR/
W
"A"
or
SEM
"A"
going HIGH to R/
W
"B"
or
SEM
"B"
going HIGH.
4. If t
SPS
is not satisfied, the semaphore will fall positively to one side or the other, but there is no guarantee which side will obtain the flag.
$:;14:
!"!A#
NOTES:
1.
CE
= V
IH
or
UB
and
LB
= V
IH
for the duration of the above timng (both write and read cycle) (Refer to Chip Enable Truth Table).
2. "DATA
OUT
VALID" represents all I/O's (I/O
0
- I/O
15
) equal to the semaphore value.
SEM
4836 drw 09
t
AW
t
EW
DATA
0
VALID ADDRESS
t
SAA
R/
W
t
WR
t
OH
t
ACE
VALID ADDRESS
DATA
IN
VALID
DATA
OUT
VALID
(2)
t
DW
t
WP
t
DH
t
AS
t
SWRD
t
AOE
t
SOP
Read Cycle
Write Cycle
A
0
-A
2
OE
t
SOP
SEM
"A"
4836 drw 10
t
SPS
MATCH
R/
W
"A"
MATCH
A
0"A"
-A
2"A"
SIDE
"A"
(2)
SEM
"B"
R/
W
"B"
A
0"B"
-A
2"B"
SIDE
"B"
(2)
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