6.42

IDT71321SA/LA and IDT71421SA/LA

High Speed 2K x 8 Dual-Port Static RAM with Interrupts

Industrial and Commercial Temperature Ranges

14

Se t INT

Cle a r INT

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 (CE or R/W) is asserted last.

4. Timing depends on which enable signal (CE or R/W) is de-asserted first.

AC Ele c t ric a l Cha ra c t e rist ic s Ove r t he

NOTE:

1. 'X' in part numbers indicates power rating (SA or LA).

INTERRUPT ADDRESS

2691 drw 14

(3)

(3)

(2)

(4)

INTERRUPT CLEAR ADDRESS

2691 drw 15

(3)

(2)

,

71321X35

71421X35

Com'l Only

71321X55

71421X55

Com'l

& Ind

Symbol

Parameter

Min.Max.Min.Max.

Unit

INTERRUPT TIMING

Address Set-up Time

0

____

0

____

ns

Write Recovery Time

0

____

0

____

ns

Interrupt Set Time

____

25

____

45

ns

Interrupt Reset Time

____

25

____

45

ns

2691 tbl 11b