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IDT70121L Datasheet(PDF) 9 Page - Integrated Device Technology

Part # IDT70121L
Description  HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT70121L Datasheet(HTML) 9 Page - Integrated Device Technology

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6.10
9
IDT 70121/70125S/L
HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT
COMMERCIAL TEMPERATURE RANGE
TIMING WAVEFORM OF BUSY ARBITRATION CONTROLLED BY
CE
CE
CE
CE
CE TIMING(1)
tBDC
ADDR
L and R
BUSYL
CER
tAPS
tBAC
ADDRESSES MATCH
CEL
2654 drw 12
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. If tAPS is not satisified, the BUSY will be asserted on one side or the other, but there is no guarantee on which side BUSY will be asserted (70121 only).
TIMING WAVEFORM OF BUSY ARBITRATION CONTROLLED BY ADDRESS (1)
tBAA
ADDR'A'
BUSY'B'
ADDRESSES MATCH
ADDRESSES DO NOT MATCH
tRC OR tWC
tAPS
tBDA
ADDR'B'
2654 drw 13
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. If
tAPS is not satisified, the
BUSY will be asserted on one side or the other, but there is no guarantee on which side BUSY will be asserted (70121 only).
AC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE(1)
70121X25
70121X35
70121X45
70121X55
70125X25
70125X35
70125X45
70125X55
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Unit
Interrupt Timing
tAS
Address Set-up Time
0
0
0
0
ns
tWR
Write Recovery Time
0
0
0
0
ns
tINS
Interrupt Set Time
25
25
40
45
ns
tINR
Interrupt Reset Time
25
35
40
45
ns
NOTE:
2654 tbl 11
1. "X" in part numbers indicates power rating (S or L).


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