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Data Sheet
June 1999
ORCA Series 2 FPGAs
Lucent Technologies Inc.
149
Timing Characteristics (continued)
Notes:
This clock delay is for a fully routed clock tree that uses the primary clock network. It includes both the input buffer delay and the clock routing
to the PFU CLK input. The delay will be reduced if any of the clock branches are not used.
Speed grades of -5, -6, and -7 are for OR2TxxA devices only.
Note: This clock delay is for a fully routed clock tree that uses the primary clock network. It includes both the input buffer delay and the clock
routing to the PFU CLK input. The delay will be reduced if any of the clock branches are not used.
Table 42A. OR2CxxA and OR2TxxA Internal Clock Delay
OR2CxxA Commercial: VDD = 5.0 V ± 5%, 0 °C
≤ TA ≤ 70 °C; OR2CxxA Industrial: VDD = 5.0 V ± 10%, –40 °C ≤ TA ≤ +85 °C.
OR2TxxA Commercial: VDD = 3.0 V to 3.6 V, 0 °C
≤ TA ≤ 70 °C; OR2TxxA Industrial: VDD = 3.0 V to 3.6 V, –40 °C ≤ TA ≤
+85 °C.
Device
(TJ = 85 °C, VDD = min)
Symbol
Speed
Unit
-2
-3
-4
-5
-6
-7
MinMax
OR2C04A/OR2T04A
CLK_DEL
—
4.6
—
4.4
—
4.3
—
3.6
—
ns
OR2C06A/OR2T06A
CLK_DEL
—
4.7
—
4.5
—
4.4
—
3.7
—
ns
OR2C08A/OR2T08A
CLK_DEL
—
4.8
—
4.6
—
4.5
—
3.8
—
ns
OR2C10A/OR2T10A
CLK_DEL
—
4.9
—
4.7
—
4.6
—
3.9
—
ns
OR2C12A/OR2T12A
CLK_DEL
—
5.0
—
4.8
—
4.7
—
4.0
—
ns
OR2C15A/OR2T15A
CLK_DEL
—
5.1
—
4.9
—
4.8
—
4.1
—
3.9
—
3.3
ns
OR2C26A/OR2T26A
CLK_DEL
—
5.2
—
5.1
—
5.0
—
4.2
—
4.0
—
3.4
ns
OR2C40A/OR2T40A
CLK_DEL
—
5.6
—
5.4
—
5.3
—
4.5
—
4.2
—
3.6
ns
Table 42B. OR2TxxB Internal Clock Delay
OR2TxxB Commercial: VDD = 3.0 V to 3.6 V, 0 °C
≤ TA ≤ 70 °C; OR2TxxB Industrial: VDD = 3.0 V to 3.6 V, –40 °C ≤ TA ≤
+85 °C.
Device
(TJ = 85 °C, VDD = min)
Symbol
Speed
Unit
-7
-8
Min
Max
Min
Max
OR2T15B
CLK_DEL
—
3.6
—
3.1
ns
OR2T40B
CLK_DEL
—
3.8
—
3.3
ns