IDT72511 Ver la hoja de datos (PDF) - Integrated Device Technology
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IDT72511 Datasheet PDF : 28 Pages
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IDT72511/IDT72521
BIDIRECTIONAL FIRST-IN FIRST-OUT MEMORY
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS
(Commercial: VCC = 5V ± 10%, TA = 0°C to + 70°C; Military: VCC = 5V ± 10%, TA = –55°C to + 125°C)
Commercial
Military
Com'l & Mil.(2)
IDT72511L25 IDT72511L35
IDT72511L50
IDT72521L25 IDT72521L35 IDT72521L40 IDT72521L50
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Unit
RESET TIMING (Port A and Port B)
tRSC
Reset cycle time
35
—
45
—
50
—
65
—
ns
tRS
Reset pulse width
25
—
35
—
40
—
50
—
ns
tRSS
Reset set-up time
25
—
35
—
40
—
50
—
ns
tRSR
Reset recovery time
10
—
10
—
10
—
15
—
ns
tRSF
Reset to flag time
—
35
—
45
—
50
—
65
ns
PORT A TIMING
taA
Port A access time
—
25
—
35
—
40
—
50
ns
taLZ
Read or write pulse
LOW to data bus at
Low-Z
5
—
5
—
5
—
5
—
ns
taHZ
Read or write pulse
HIGH to data bus at
High- Z
—
15
—
20
—
25
—
30
ns
taDV
Data valid from read
pulse HIGH
5
—
5
—
5
—
5
—
ns
taRC
Read cycle time
35
—
45
—
50
—
65
—
ns
taRPW Read pulse width
25
—
35
—
40
—
50
—
ns
taRR
Read recovery time
10
—
10
—
10
—
15
—
ns
taS
CSA , A0, A1, R/WA set-
5
—
5
—
5
—
5
—
ns
up time
taH
CSA , A0, A1, R/WA hold
5
—
5
—
5
—
5
—
ns
time
taDS
taDH(1)
Data set-up time
Data hold time
15
—
18
—
20
—
30
—
ns
0
—
2
—
5
—
5
—
ns
taWC
Write cycle time
35
—
45
—
50
—
65
—
ns
taWPW Write pulse width
25
—
35
—
40
—
50
—
ns
taWR
Write recovery time
10
—
10
—
10
—
15
—
ns
taWRCOM Write recovery time after 25
—
35
—
40
—
50
—
ns
a command
Timing
Figure
9
9
9
9
9
12, 14, 15
12, 15, 16
12, 14, 15, 16
12, 14, 16
12
12, 14, 15
12
10, 12, 16
10, 12
11, 12, 14, 15
11, 12, 14, 15
12
11, 12, 14
12
11
NOTE:
1. The minimum data hold time is 5ns (10ns for the 80ns speed grade) when writing to the Command or Configuration registers.
2. IDT72511 not available in military.
2668 tbl 21
5.32
15
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