IDT70T3589 Integrated Device Technology, IDT70T3589 Datasheet - Page 20

• Manufacturer Part Number: IDT70T3589
• Description: 64k X 36 Sync, 3.3v/2.5v Dual-port Ram, Interleaved I/o S
• Manufacturer: Integrated Device Technology

NOTES:
1. CE
2. All timing is the same for Left and Right ports.
3. Address is for internal register, not the external bus, i.e., address needs to be qualified by one of the Address counter control signals.
Truth Table III — Interrupt Flag
NOTES:
1. INT
2. CE
3. A17
4. A17
5. Address is for internal register, not the external bus, i.e., address needs to be qualified by one of the Address counter control signals.
Waveform of Interrupt Timing
IDT70T3519/99/89S
High-Speed 2.5V 256/128/64K x 36 Dual-Port Synchronous Static RAM
ADDRESS
ADDRESS
CLK
↑
↑
↑
↑
0 =
0 =
L
X
X
L
and INT
V
is a NC for IDT70T3599, therefore Interrupt Addresses are 1FFFF and 1FFFE.
and A16
V
INT
R/W
CE
CLK
CE
IL
CLK
R/W
IL
and CE
and CE
R
R
R
L
L
R
(3)
(1)
(1)
(3)
R
R/W
L
L
R
L
X
X
H
X
must be initialized at power-up by Resetting the flags.
L
are NC's for IDT70T3589, therefore Interrupt Addresses are FFFF and FFFE.
1 =
(2)
1 =
V
V
IH
IH
. R/W and CE are synchronous with respect to the clock and need valid set-up and hold times.
Left Port
CE
t
t
X
X
t
L
L
SW
3FFFF
SC
SA
L
(2)
t
t
t
HW
HA
HC
A
17L
3FFFE
3FFFF
-A
t
X
X
INS
0L
(3,4,5)
INT
X
X
L
H
L
CLK
↑
↑
↑
↑
(2)
R
(1)
t
SC
t
t
SW
SA
3FFFF
6.42
R/W
20
X
H
X
L
t
t
t
R
HC
HW
HA
(2)
t
INR
Right Port
CE
X
X
L
L
R
(2)
A
17R
Industrial and Commercial Temperature Ranges
3FFFE
3FFFF
-A
X
X
0R
(3,4,5)
INT
H
X
X
L
R
Set Right INT
Reset Right INT
Set Left INT
Reset Left INT
L
Function
R
APRIL 10, 2006
Flag
L
Flag
R
Flag
5666 drw 19
Flag
5666 tbl 12