IDT7M1002S40G Просмотр технического описания (PDF) - Integrated Device Technology
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IDT7M1002S40G Datasheet PDF : 12 Pages
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IDT7M1002
16K x 32 CMOS DUAL-PORT STATIC RAM MODULE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS
(VCC = 5V ± 10%, TA = 55°C to +125°C or 0°C to +70°C)
Symbol Parameter
Write Cycle (continued)
tDW
Data Valid to End-of-Write
tDH
tHZ(1)
tOW(1)
Data Hold Time
Output to High-Z
Output Active from End-of-Write
tSWRD
SEM Flag Write to Read Time
tSPS
SEM Flag Contention Window
Busy Cycle-Master Mode(3)
tBAA
BUSY Access Time to Address
tBDA
BUSY Disable Time to Address
tBAC
BUSY Access Time to Chip Select
tBDC
tWDD(5)
BUSY Disable Time to Chip Deselect
Write Pulse to Data Delay
tDDD
tAPS(6)
Write Data Valid to Read Data Delay
Arbitration Priority Set-Up Time
tBDD
BUSY Disable to Valid Time
Busy Cycle-Slave Mode (4)
tWB(7)
Write to BUSY Input
tWH(8)
Write Hold after BUSY
tWDD(5) Write Pulse to Data Delay
Interrupt Timing
tAS
Address Set-Up Time
tWR
Write Recovery Time
tINS
Interrupt Set Time
tINR
Interrupt Reset Time
7M1002SxxG
30
–35
Min. Max. Min. Max.
22 — 25
—
0
—
0
—
— 15 —
15
0
—
0
—
10 — 10
—
10 — 10
—
— 30 —
— 25 —
— 25 —
— 25 —
— 55 —
— 40 —
5
—
5
— NOTE 9 —
35
30
30
25
60
45
—
NOTE 9
0
—
0
—
25 — 25
—
— 55 —
60
0
—
0
—
0
—
0
—
— 25 —
30
— 25 —
30
NOTES:
1. This parameter is guaranteed by design but not tested.
2. To access RAM, CS ≤ VIL and SEM ≥ VIH. To access semaphore, CS ≥ VIH and SEM ≤ VIL.
3. When the module is being used in the Master Mode (M/S ≥ VIH).
4. When the module is being used in the Slave Mode (M/S ≤ VIL).
5. Port-to-Port delay through the RAM cells from the writing port to the reading port.
6. To ensure that the earlier of the two ports wins.
7. To ensure that the write cycle is inhibited during contention.
8. To ensure that a write cycle is completed after contention.
9. tBDD is a calculated parameter and is the greater of 0, tWDD - tWP (actual), or tDDD - tWP (actual).
7M1002SxxGB
–40
–45
Min. Max. Min. Max. Unit
25 —
0—
— 17
0—
10 —
10 —
25 — ns
0 — ns
— 20 ns
0 — ns
10 — ns
10 — ns
— 35
— 30
— 30
— 25
— 65
— 50
5—
— NOTE 9
— 35 ns
— 30 ns
— 30 ns
— 25 ns
— 70 ns
— 55 ns
5 — ns
— NOTE 9 ns
0—
25 —
— 65
0 — ns
25 — ns
— 70 ns
0—
0—
— 32
— 32
0 — ns
0 — ns
— 35 ns
— 35 ns
2795 tbl 10
7.02
5
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