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PALCE20V8
Document #: 38-03026 Rev. **
Page 7 of 14
Shaded area contains preliminary information.
Military Switching Characteristics[2]
Parameter
Description
20V8
−10
20V8
−15
20V8
−25
Min.
Max.
Min.
Max.
Min.
Max.
Unit
tPD
Input to Output
Propagation Delay[8]
110
1
15
1
25
ns
tPZX
OE to Output Enable
10
15
20
ns
tPXZ
OE to Output Disable
10
15
20
ns
tEA
Input to Output Enable Delay[7]
10
15
25
ns
tER
Input to Output Disable Delay[7,9]
10
15
25
ns
tCO
Clock to Output Delay[8]
110
1
12
1
20
ns
tS
Input or Feedback Set-Up Time
10
12
20
ns
tH
Input Hold Time
0
0
0
ns
tP
External Clock Period (tCO + tS)20
24
40
ns
tWH
Clock Width HIGH[7]
8
10
15
ns
tWL
Clock Width LOW[7]
8
10
15
ns
fMAX1
External Maximum Frequency
(1/(tCO + tS)
[7,10]
50
41.7
25
MHz
fMAX2
Data Path Maximum Frequency
(1/(tWH + tWL))
[7, 11 ]
62.5
50
33.3
MHz
fMAX3
Internal Feedback Maximum
Frequency (1/(tCF + tS))
[7,12]
62.5
50
33.3
MHz
tCF
Register Clock to
Feedback Input[7, 13]
6
8
10
ns
tPR
Power-Up Reset Time[7]
1
1
1
µs
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