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IDT49C465A Datasheet PDF : 38 Pages
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IDT49C465/A
32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC PARAMETERS - 49C465
PROPAGATION DELAY TIMES FROM LATCH ENABLES
Parameter Description
Parameter From
Number Name
Input (edge)
To
Output (edge)
22
t MLC
CBO
*
23
t MLE
ERR
*
24
t MLME
MLE = HIGH
MERR *
25
t MLP
Px
*
26
t MLS
SDOUT *
27
t MLSY
SYO
*
28
t PLS
PLE = LOW
SDOUT *
29
t PLP
PLE = LOW
Px
*
30
t SLC
SLE = HIGH
CBO
*
31
t SLM
SLE = HIGH
MDOUT *
Com.’l.
Max.
20
15
20
20
20
18
12
16
20
15
NOTE:
“*” = Both HIGH and LOW edges are implied.
ENABLE AND DISABLE TIMES
Parameter Description
Parameter From
To
Number Name Input (edge) Output (edge)
32
t BESZx
BEN = HIGH SDOUT *
33
t BESxZ
LOW
Hi – Z
34
t BEPZx
BEN = HIGH POUT *
35
t BEPxZ
LOW
Hi – Z
36
t CECZx
CBOE = LOW CBO *
37
t CECxZ
HIGH
Hi – Z
38
t MEMZx
MOE = LOW MDOUT *
39
t MEMxZ
HIGH
Hi – Z
40
t SESZx
SOE = LOW SDOUT *
41
t SESxZ
HIGH
Hi – Z
Com’l.
Min.
2
2
2
2
2
2
2
2
2
2
Max.
15
13
15
13
15
13
15
13
15
13
NOTE:
“*” = Delay to both edges.
Mil.
Max.
24
20
24
25
25
22
16
20
24
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Refer to
Timing Diagram
Figure
13
8, 10, 11
8
8, 11
8, 10, 11
8, 10
8, 11
8, 11
7, 9
7, 9
2552 tbl 25
Mil.
Min.
2
2
2
2
2
2
2
2
2
2
Max.
18
16
18
16
18
16
18
16
18
16
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Refer to
Timing Diagram
Figure
8, 10, 11
8, 11
7, 9
7, 9
8, 10
8, 10
7, 9
2552 tbl 26
11.7
26
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