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70P259L65BYGI
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
6.42
13
IDT70P269/259/249L
Low Power 16K/8K/4K x 16 Dual-Port Static RAM Industrial Temperature Range
OCTOBER 16, 2008
tAW
V
a
lid
A
d
dr
e
s
s
Addres
s
CS
OE
WE
UB,
LB
tWC
tB
W
Vali
d Dat
a
Data
tS
A
tHA
tH
Z
WE
tW
RL
tLZWE
tS
D
tHD
7146 drw
09
Standar
d P
or
t Write Cy
c
le (Either Por
t Access,
WE
Contr
olled)
tAW
Valid A
d
dress
Add
ress
CS
OE
WE
UB
, LB
tWC
tBW
Valid D
ata
Dat
a
tSA
tH
A
tH
ZWE
tWRL
tSD
tHD
tLZC
S
tSCS
7
146 dr
w
1
0
Standar
d P
or
t Write Cyc
le (Either P
or
t Access,
CS
Contr
olled)
6.42
IDT70P269/259/249L
Low Power 16K/8K/4K x 16 Dual-Port Static RAM Industrial Temperature Range
14
OCTOBER 16, 2008
Ad
dress M
atch
Ad
dress
CS
R
CS
L
BUSY
L
tP
S
tB
L
C
t
BHC
7146
drw 11
A
C Electrical Char
acteristics Over the
Operating T
emper
ature and Supply V
oltage Range
(1)
NOTES:
1. VDD = 1.8V.
2. Add 2 ns to this parameter if V
DD
and V
DDIOR
are <1.8V, and V
DDIOL
is >2.5V at temperature <0
O
C.
Symbol
Paramet
er
70P
269/
259/
249
Un
i
t
65 n
s
90 n
s
Min
.
Max
.
Mi
n.
Max
.
.
A
rbit
rat
ion T
iming
t
BL
A
BUSY
Lo
w fro
m
A
d
d
re
s
s
M
a
tc
h
____
30
____
50
ns
t
BH
A
BUSY
H
i
gh
f
r
om
Ad
dr
es
s M
a
t
ch
____
30
____
50
ns
t
BL
C
BUSY
Lo
w from
CS
Lo
w
____
30
____
50
ns
t
BH
C
BUSY
Hig
h fro
m
CS
Hi
g
h
____
30
____
50
ns
t
PS
(2)
Po
rt
Se
t-
up P
riorit
y
5
____
5
____
ns
t
BD
D
BUSY
Hig
h to Data Valid
____
30
____
50
ns
t
WDD
W
r
it
e Pu
lse t
o D
a
t
a
D
ela
y
____
55
____
85
ns
t
DDD
Wr
ite Da
t
a V
alid to Read Da
ta
V
alid
____
45
____
70
ns
7146 tbl
14
Arbitration Timing
6.42
15
IDT70P269/259/249L
Low Power 16K/8K/4K x 16 Dual-Port Static RAM Industrial Temperature Range
OCTOBER 16, 2008
Arbitration Timing
(Address Controlled with Port A ADM and Port B STD Configuration)
Port A
Addres
s
Vali
d Firs
t
ADV
A
Addre
ss
A
(Inte
rna
l)
Addre
ss
B
BUSY
B
I/
O
A
[
15:
0]
tA
V
D
H
A
0
tPS
tB
L
A
tBHA
A
0
A
1
I/
O
A
[
15:
0]
ADV
A
Addre
ss
A
(Inte
rna
l)
Addre
ss
B
BUSY
A
A
0
Da
ta
A
1
tAVD
H
tPS
tBHA
tBL
A
A
0
A
0
A
1
tAVD
H
Port B
Addres
s
Vali
d Firs
t
A
0
7146
drw
12
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
70P259L65BYGI
Mfr. #:
Buy 70P259L65BYGI
Manufacturer:
IDT
Description:
SRAM Low Power Dual-Port RAM IC
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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