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Data Sheet
ORCA Series 2 FPGAs
November 2006
154
Lattice Semiconductor
Timing Characteristics (continued)
Notes:
The pin-to-pin timing information from ispLEVER is more accurate than this table. For earlier versions of
ORCA Foundry, the pin-to-pin timing
parameters in this table should be used instead of results reported by
ORCA Foundry.
This clock delay is for a fully routed clock tree that uses the primary clock network. It includes both the input buffer delay, the clock routing to the
PFU CLK input, the clock
→Q of the FF, and the delay through the output buffer. The delay will be reduced if any of the clock branches are not
used. The given timing requires that the input clock pin be located at one of the four center PICs on any side of the device and that the direct
FF
→I/O routing be used.
If the clock pin is not located at one of the four center PICs, this delay must be increased by up to the following amounts:
OR2C/2T04A = 1.5%, OR2C06A = 2.0%, OR2C/2T08A = 3.1%, OR2C/2T10A = 3.9%, OR2C12A = 4.9%, OR2C/2T15A = 5.7%,
OR2C/2T26A = 8.1%, OR2C/2T40A = 12.5%.
Table 44A. OR2CxxA/OR2TxxA Global Clock to Output Delay (Pin-to-Pin)—Output Not on Same
Side of the Device as the Clock Pin
OR2CxxA Commercial: VDD = 5.0 V ± 5%, 0 °C
≤ TA ≤ 70 °C; Industrial: VDD = 5.0 V ± 10%, –40 °C ≤ TA ≤ +85 °C; CL = 50 pF.
OR2TxxA Commercial: VDD = 3.0 V to 3.6 V, 0 °C
≤ TA ≤ 70 °C;
Industrial: VDD = 3.0 V to 3.6 V, –40 °C
≤ TA ≤ +85 °C; CL = 50 pF.
Description
(TJ = 85 °C, VDD = min)
Device
Speed
Unit
-3
-4
-5
-6
-7
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
CLK Input Pin
→ OUTPUT Pin
(Fast)
OR2C/2T04A
OR2C06A
OR2C/2T08A
OR2C/2T10A
OR2C12A
OR2C/2T15A
OR2C/2T26A
OR2C/2T40A
—
10.5
10.6
10.8
11.0
11.2
11.5
11.9
13.3
—
9.9
10.0
10.1
10.3
10.5
10.7
11.1
12.4
—
8.8
8.9
9.0
9.2
9.4
9.6
10.0
11.1
—
8.9
9.3
10.5
—
7.3
7.7
8.3
ns
CLK Input Pin
→ OUTPUT Pin
(Slewlim)
OR2C/2T04A
OR2C06A
OR2C/2T08A
OR2C/2T10A
OR2C12A
OR2C/2T15A
OR2C/2T26A
OR2C/2T40A
—
12.7
12.9
13.1
13.3
13.5
13.6
14.1
15.5
—
11.8
11.9
12.0
12.2
12.4
12.6
12.9
14.2
—
10.3
10.4
10.5
10.6
10.8
11.0
11.4
12.5
—
10.1
10.5
11.7
—
8.0
8.4
9.1
ns
CLK Input Pin
→ OUTPUT Pin
(Sinklim)
OR2C/2T04A
OR2C06A
OR2C/2T08A
OR2C/2T10A
OR2C12A
OR2C/2T15A
OR2C/2T26A
OR2C/2T40A
—
14.8
15.0
15.2
15.4
15.6
15.8
16.2
17.6
—
13.8
13.9
14.1
14.2
14.4
14.6
14.9
16.3
—
13.4
13.5
13.6
13.7
13.9
14.1
14.4
15.6
—
12.7
13.1
14.3
—
11.2
11.6
12.2
ns
Select
devices
have
been
discontinued.
See
Ordering
Information
section
for
product
status.