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M4-64/32-10VC View Datasheet(PDF) - Lattice Semiconductor

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M4-64/32-10VC Datasheet PDF : 46 Pages
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MACH 4 TIMING PARAMETERS OVER OPERATING RANGES1 (CONTINUED)
-7
-10
-12
-14
-15
-18
Min Max Min Max Min Max Min Max Min Max Min Max Unit
Frequency:
External feedback, D-type, Min of 1/(tWLS + tWHS) or
1/(tSS + tCOS)
90.9
80.0
66.7
50.0
50.0
41.7
MHz
External feedback, T-type, Min of 1/(tWLS + tWHS) or
1/(tSST + tCOS)
83.3
74.1
62.5
47.6
47.6
40.0
MHz
fMAXS
Internal feedback (fCNT), D-type,
Min of 1/(tWLS + tWHS) or 1/(tSS + tCOSi)
111.1
95.2
76.9
55.6
55.6
45.5
MHz
Internal feedback (fCNT), T-type,
Min of 1/(tWLS + tWHS) or 1/(tSST + tCOSi)
100.0
87.0
71.4
52.6
52.6
43.5
MHz
No feedback2, Min of 1/(tWLS + tWHS), 1/(tSS + tHS) or 153.8
100.0
83.3
83.3
83.3
71.4
MHz
1/(tSST + tHS)
External feedback, D-type, Min of 1/(tWLA + tWHA) or
1/(tSA + tCOA)
76.9
62.5
52.6
38.5
38.5
33.3
MHz
External feedback, T-type, Min of 1/(tWLA + tWHA) or
1/(tSAT + tCOA)
71.4
58.8
50.0
37.0
37.0
32.3
MHz
fMAXA
Internal feedback (fCNTA), D-type,
Min of 1/(tWLA + tWHA) or 1/(tSA + tCOAi)
90.9
71.4
58.8
41.7
41.7
35.7
MHz
Internal feedback (fCNTA), T-type,
Min of 1/(tWLA + tWHA) or 1/(tSAT + tCOAi)
No feedback2, Min of 1/(tWLA + tWHA),
1/(tSA + tHA) or 1/(tSAT + tHA)
83.3
66.7
55.6
40.0
40.0
34.5
MHz
125.0
100.0
62.5
55.6
55.6
50.0
MHz
Maximum input register frequency,
fMAXI Min of 1/(tWIRH + tWIRL) or 1/(tSIRS + tHIRS)
111.0
100.0
83.3
83.3
83.3
71.4
MHz
Notes:
1. See “MACH Switching Test Circuit” document on the Literature Download page of the Lattice web site.
2. This parameter does not apply to flip-flops in the emulated mode since the feedback path is required for emulation.
CAPACITANCE 1
Parameter Symbol
CIN
CI/O
Parameter Description
Input capacitance
Output capacitance
Test Conditions
Typ
Unit
VIN=2.0 V
VOUT=2.0V
3.3 V or 5 V, 25°C, 1 MHz
6
pF
3.3 V or 5 V, 25°C, 1 MHz
8
pF
Note:
1. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified where
this parameter may be affected.
34
MACH 4 Family
 

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