参数资料
型号: IDT7006
厂商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 16K x 8 DUAL-PORT STATIC RAM
中文描述: 高速16K的× 8双端口静态RAM
文件页数: 11/20页
文件大小: 270K
代理商: IDT7006
IDT7006S/L
HIGH-SPEED 16K x 8 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.07
11
TIMING WAVEFORM OF SEMAPHORE READ AFTER WRITE TIMING, EITHER SIDE
(1)
NOTES:
1.
CE
= V
IH
for the duration of the above timing (both write and read cycle).
2. "DATA
OUT
VALID" represents all I/O's (I/O
0
-I/O
7
) equal to the semaphore value.
NOTES:
1. D
OR
= D
OL
= V
IL
,
CE
R
=
CE
L
= V
IH
, Semaphore Flag is released from both sides (reads as ones from both sides) at cycle start.
2. All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.
3. This parameter is measured from R/
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.
TIMING WAVEFORM OF SEMAPHORE WRITE CONTENTION
(1,3,4)
SEM
"A"
2739 drw 12
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)
SEM
2739 drw 11
t
AW
t
EW
t
SOP
I/O
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
Read Cycle
Write Cycle
A
0
-A
2
OE
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