IDT71321 Integrated Device Technology, IDT71321 Datasheet - Page 10

• Manufacturer Part Number: IDT71321
• Description: HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
• Manufacturer: Integrated Device Technology

AC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE
IDT71321SA/LA AND IDT71421SA/LA
HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
TIMING WAVEFORM OF INTERRUPT MODE
NOTE:
1. "X" in part numbers indicates power rating (S or L).
NOTES:
1. 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'.
2. See Interrupt Truth Table.
3. Timing depends on which enable signal (
4. Timing depends on which enable signal (
Symbol
SET
ADDR
Interrupt Timing
t
t
t
t
CLEAR
AS
WR
INS
INR
ADDR
OE
INT
R/
INT
W
'B'
INT
INT
INT
'B'
INT
INT
'B'
'A'
'A'
'B'
Address Set-up Time
Write Recovery Time
Interrupt Set Time
Interrupt Reset Time
INT
INT
INT
INT
INT
t
AS
Parameter
(3)
INTERRUPT ADDRESS
t
INS
CE
CE
(3)
or R/
or R/
t
WC
W
W
) is asserted last.
) is de-asserted first.
(2)
Min.
71321X25
71421X25
—
—
t
0
0
WR
6.03
(4)
Max.
25
25
—
—
t
AS
(3)
INTERRUPT CLEAR ADDRESS
Min. Max.
71321X35
71421X35
—
—
0
0
t
INR
(3)
25
25
—
—
(1)
t
RC
Min.
—
—
8M824S25
71321X45
71421X45
0
0
COMMERCIAL TEMPERATURE RANGE
Max.
35
35
—
—
Min.
8M824S308M824S35
71321X55
71421X55
—
—
0
0
Max.
45
45
—
—
2691 drw 14
2691 drw 15
2689 tbl 12
Unit
ns
ns
ns
ns
10