IDT7026L IDT [Integrated Device Technology], IDT7026L Datasheet - Page 12

• Manufacturer Part Number: IDT7026L
• Description: HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM
• Manufacturer: IDT [Integrated Device Technology]

IDT7026S/L
HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM
AC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE
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
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).
Symbol
BUSY TIMING (M/
t
t
t
t
t
t
t
BUSY TIMING (M/
t
t
PORT-TO-PORT DELAY TIMING
t
t
Symbol
BUSY TIMING (M/
t
t
t
t
t
t
t
BUSY TIMING (M/
t
t
PORT-TO-PORT DELAY TIMING
t
t
BAA
BDA
BAC
BDC
APS
BDD
WH
WB
WH
WDD
DDD
BAA
BDA
BAC
BDC
APS
BDD
WH
WB
WH
WDD
DDD
BDD
is a calculated parameter and is the greater of 0, t
BUSY
BUSY
BUSY
BUSY
Arbitration Priority Set-up Time
BUSY
Write Hold After
BUSY
Write Hold After
Write Pulse to Data Delay
Write Data Valid to Read Data Delay
BUSY
BUSY
BUSY
BUSY
Arbitration Priority Set-up Time
BUSY
Write Hold After
BUSY
Write Hold After
Write Pulse to Data Delay
Write Data Valid to Read Data Delay
S S S S S
S S S S S
S S S S S
S S S S S
Access Time from Address Match
Disable Time from Address Not Matched
Access Time from Chip Enable Low
Disable Time from Chip Enable High
Disable to Valid Data
Input to Write
Access Time from Address Match
Disable Time from Address Not Matched
Access Time from Chip Enable Low
Disable Time from Chip Enable High
Disable to Valid Data
Input to Write
= V
= V
= V
= V
IH
IL
IH
IL
)
)
)
)
BUSY
BUSY
BUSY
BUSY
(4)
(4)
Parameter
Parameter
(5)
(5)
(5)
(5)
(1)
(1)
(3)
(3)
(2)
(2)
(1)
(1)
WDD
– t
WP
(actual), or t
6.17
DDD
– t
DW
(actual).
MILITARY AND COMMERCIAL TEMPERATURE RANGES
(6)
Min.
Min.
IDT7026X20
IDT7026X35
Com'l. Only
15
15
25
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
0
5
0
Max.
Max.
20
20
20
17
30
45
30
20
20
20
20
35
60
45
—
—
—
—
—
—
—
—
Min.
Min.
IDT7026X25
IDT7026X55
—
—
—
—
—
17
17
—
—
—
—
—
—
—
25
25
—
—
5
0
5
0
BUSY
Max.
Max.
20
20
20
17
30
50
35
45
40
40
35
40
80
65
—
—
—
—
—
—
—
—
(M/
S
2939 tbl 15
= V
Unit
Unit
12
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
IH
)".