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AT40K05 Datasheet, PDF (26/67 Pages) ATMEL Corporation – 5K - 50K Gates Coprocessor FPGA with FreeRAM
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AC Timing Characteristics – 5V Operation AT40K
Delays are based on fixed loads and are described in the notes.
Maximum times based on worst case: VCC = 4.75V, temperature = 70°C
Minimum times based on best case: VCC = 5.25V, temperature = 0°C
Maximum delays are the average of tPDLH and tPDHL.
All input IO characteristics measured from a VIH of 50% of VDD at the pad (CMOS threshold) to the internal VIH of 50%
of VCC. All output IO characteristics are measured as the average of tPDLH and tPDHL to the pad VIH of 50% of VCC.
Cell Function
Parameter
Path
-2
Units
Notes
Repeaters
Repeater
Repeater
Repeater
Repeater
Repeater
Repeater
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
L -> E
E -> E
L -> L
E -> L
E -> IO
L -> IO
1.3
ns
1 unit load
1.3
ns
1 unit load
1.3
ns
1 unit load
1.3
ns
1 unit load
0.8
ns
1 unit load
0.8
ns
1 unit load
All input IO characteristics measured from a VIH of 50% at the pad (CMOS threshold) to the internal VIH of 50% of VCC. All
output IO characteristics are measured as the average of tPDLH and tPDHL to the pad VIH of 50% of VCC.
Cell Function
IO
Input
Input
Input
Input
Output, Slow
Output, Medium
Output, Fast
Output, Slow
Output, Slow
Output, Medium
Output, Medium
Output, Fast
Output, Fast
Parameter
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPD (Maximum)
tPZX (Maximum)
tPXZ (Maximum)
tPZX (Maximum)
tPXZ (Maximum)
tPZX (Maximum)
tPXZ (Maximum)
Path
pad -> x/y
pad -> x/y
pad -> x/y
pad -> x/y
x/y/E/L -> pad
x/y/E/L -> pad
x/y/E/L -> pad
oe -> pad
oe -> pad
oe -> pad
oe -> pad
oe -> pad
oe -> pad
-2
Units
Notes
1.2
ns
No extra delay
3.6
ns
1 extra delay
7.3
ns
2 extra delays
10.8
ns
3 extra delays
5.9
ns
50 pf load
4.8
ns
50 pf load
3.9
ns
50 pf load
6.2
ns
50 pf load
1.3
ns
50 pf load
4.8
ns
50 pf load
1.9
ns
50 pf load
3.7
ns
50 pf load
1.6
ns
50 pf load
26 AT40K/AT40KLV Series FPGA
0896C–FPGA–04/02
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