IDT7008L IDT [Integrated Device Technology], IDT7008L Datasheet - Page 12

• Manufacturer Part Number: IDT7008L
• Description: HIGH-SPEED 64K x 8 DUAL-PORT STATIC RAM
• Manufacturer: IDT [Integrated Device Technology]

NOTES:
1. Port-to-port delay through RAM cells from writing port to reading port, refer to "Timing Waveform of Write with Port-to-Port Read and BUSY (M/S = V
2. To ensure that the earlier of the two ports wins.
3. t
4. To ensure that the write cycle is inhibited on port "B" during contention on port "A".
5. To ensure that a write cycle is completed on port "B" after contention on port "A".
6. 'X' in part numbers indicates power rating (S or L).
7. Industrial Temperature: for other speeds, packages and powers contact your sales office.
PORT-TO-PORT DELAY TIMING
BUSY TIMING (M/S=V
t
t
t
t
t
t
t
BUSY TIMING (M/S=V
t
t
t
t
BAA
BDA
BAC
BDC
APS
BDD
WH
WB
WH
WDD
DDD
Symbol
IDT7008S/L
High-Speed 64K x 8 Dual-Port Static RAM
BDD
is a calculated parameter and is the greater of 0, t
BUSY Access Time from Address Match
BUSY Disable Time from Address Not Matched
BUSY Access Time from Chip Enable Low
BUSY Access Time from Chip Enable High
Arbitration Priority Set-up Time
BUSY Disable to Valid Data
Write Hold After BUSY
BUSY Input to Write
Write Hold After BUSY
Write Pulse to Data Delay
Write Data Valid to Read Data Delay
IH
IL
)
)
(4)
(5)
(5)
Parameter
(1)
(3)
(2)
(1)
WDD
– t
WP
(actual) or t
DDD
12
Min.
Com'l Only
____
____
____
____
____
____
____
15
15
5
0
– t
7008X20
DW
(actual).
Max.
Military, Industrial and Commercial Temperature Ranges
____
____
____
____
20
20
20
20
45
30
17
Min.
____
____
____
____
____
____
____
17
17
5
0
7008X25
Com'l &
Military
Max.
____
____
____
____
20
20
20
25
50
35
17
Min.
____
____
____
____
____
____
____
25
25
5
0
7008X35
Com'l &
Military
Max.
____
____
____
____
20
20
20
20
35
60
45
Com'l, Ind &
Min.
____
____
____
____
____
____
____
25
25
5
0
7008X55
Military
Max.
____
____
____
____
45
40
40
35
55
80
65
IH
)".
3198 tbl 14
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns