IDT70P258/248L
Low Power 1.8V 8K/4K x 16 Dual-Port Static RAM
Waveform of Interrupt Timing (1)
t WC
Industrial Temperature Range
ADDR "A"
CE "A"
R/ W "A"
INT "B"
t AS (3)
t INS
(3)
(2)
INTERRUPT SET ADDRESS
t WR (4)
t RC
5675 drw 14
,
ADDR "B"
CE "B"
OE "B"
INT "B"
t AS (3)
t INR (3)
INTERRUPT CLEAR ADDRESS
(2)
,
5675 drw 15
NOTES:
1. All timing is the same for left and right ports. Port “A” may be either the left or right port. Port “B” is the port opposite from “A”.
2. See Interrupt Truth Table III.
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.
16
6.42
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