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IDT49C465PQFB Datasheet PDF : 38 Pages
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IDT49C465/A
32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SET-UP AND HOLD TIMES - 49C465A
Parameter Description
Parameter From
Number Name Input
(edge)
To
Output
(edge)
42
t SSLS
SDIN Set-up *
43
t SSLH
SDIN Hold *
44
t MMLS
MDIN Set-up *
45
t MMLH
MDIN Hold *
before SLE = LOW
after SLE = LOW
before MLE =LOW
after MLE = LOW
46
t CMLS
CBI Set-up *
47
t CMLH
CBI Hold *
48
t MPLS
MDIN Set-up *
49
t MPLH
MDIN Hold *
50
t CPLS
CBI Set-up *
51
t CPLH
CBI Hold *
52
t PCPLS PCBI Set-up *
53
t PCPLH PCBI Hold *
before MLE = LOW
after MLE = LOW
before PLE = HIGH
after PLE = HIGH
before PLE =HIGH
after PLE = HIGH
before PLE = HIGH
after PLE = HIGH
Com.’l.
Min.
3
3
3
3
3
3
10
0
10
0
10
0
DIAGNOSTIC SET-UP AND HOLD TIMES
54
t CSCS
CBI Set-up *
10
55
t MSCS
MDIN Set-up *
before SYNCLK=HIGH 10
56
t MLSCS MLE Set-up =HIGH
10
57
t SESCS SCLKEN Set-up =LOW
3
58
t SESCH SCLKEN Hold =LOW after SYNCLK =HIGH
3
NOTE:
“*” = Where “edge” is not specified, both HIGH and LOW edges are implied.
Mil.
Min.
4
4
4
4
4
4
12
0
12
0
12
0
12
12
12
4
4
Refer to
Timing Diagram
Unit
Figure
ns
7, 9
ns
7, 9
ns
8, 10, 11
ns
8, 10, 11
ns
8, 10, 11
ns
8, 10, 11
ns
—
ns
—
ns
—
ns
—
ns
—
ns
—
ns
15
ns
15
ns
15
ns
15
ns
15
2552 tbl 32
MINIMUM PULSE WIDTH
Parameter
Number Name
59
t CLEAR
60
t MLE
61
t PLE
62
t SLE
63
t SYNCLK
Minimum Pulse Width
Com’l.
Input
Conditions Min.
Min. CLEAR LOW time to clear diag. registers Data = Valid
8
Min. MLE HIGH time
Min. PLE LOW time
to strobe new data
to strobe new data
MD, CBI = Valid 5
SD = Valid
5
Min. SLE HIGH time
to strobe new data SD = Valid
5
Min. SYNCLK HIGH time to clock in new data SCKEN = LOW 5
Mil.
Min.
10
6
6
6
6
Refer to
Timing Diagram
Unit
Figure
ns
14
ns
—
ns
—
ns
—
ns
14
2552 tbl 33
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
GND to 3.0V
1V/ns
1.5V
1.5V
See Figure 18
2552 tbl 34
11.7
24
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