M4-32/32-10VI48 View Datasheet(PDF) - Lattice Semiconductor
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Description
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M4-32/32-10VI48
Lattice Semiconductor
M4-32/32-10VI48 Datasheet PDF : 62 Pages
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MACH 4A TIMING PARAMETERS OVER OPERATING RANGES1 (CONTINUED)
-5
-55
-6
-65
-7
-10
-12
-14
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Unit
tWIRH
Input register clock width
high
3.0
3.0
3.5
3.5
4.0
5.0
6.0
6.0
ns
tWIL Input latch gate width
4.0
4.0
4.5
4.5
5.0
5.0
6.0
6.0
ns
Frequency:
External feedback, D-type,
Min of 1/(tWLS + tWHS) or 143
133
118
118
95.2
87.0
74.1
60.6
MHz
1/(tSS + tCOS)
External feedback, T-type,
Min of 1/(tWLS + tWHS) or 125
125
111
111
87.0
80.0
69.0
57.1
MHz
1/(tSST + tCOS)
Internal feedback (fCNT),
fMAXS D-type, Min of 1/(tWLS + 182
167
154
154
125
100
83.3
74.1
MHz
tWHS) or 1/(tSS + tCOSi)
Internal feedback (fCNT),
T-type, Min of 1/(tWLS + 154
154
143
143
111
105
87.0
69.0
MHz
tWHS) or 1/(tSST + tCOSi)
No feedback2, Min of 1/
(tWLS + tWHS), 1/(tSS + tHS) 250
250
200
200
154
125
100
83.3
MHz
or 1/(tSST + tHS)
External feedback, D-type,
Min of 1/(tWLA + tWHA) or 111
111
100
100
83.3
66.7
55.6
43.5
MHz
1/(tSA + tCOA)
External feedback, T-type,
Min of 1/(tWLA + tWHA) or 105
105
95.2
95.2
76.9
62.5
52.6
41.7
MHz
1/(tSAT + tCOA)
Internal feedback (fCNTA),
fMAXA D-type, Min of 1/(tWLA + 133
133
125
125
105
83.3
66.7
50.0
MHz
tWHA) or 1/(tSA + tCOAi)
Internal feedback (fCNTA),
T-type, Min of 1/(tWLA + 125
125
118
118
95.2
76.9
62.5
47.6
MHz
tWHA) or 1/(tSAT + tCOAi)
No feedback2, Min of 1/
(tWLA + tWHA), 1/(tSA + 167
167
143
143
125
100
62.5
55.6
MHz
tHA) or 1/(tSAT + tHA)
Maximum input register
fMAXI
frequency, Min of 1/(tWIRH 167
+ tWIRL) or 1/(tSIRS +
167
143
143
125
100
83.3
83.3
MHz
tHIRS)
Notes:
1. See “Switching Test Circuit” in the General Information Section of the Vantis 1999 Data Book.
2. This parameter does not apply to flip-flops in the emulated mode since the feedback path is required for emulation.
MACH 4 Family
45
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