Data Sheet
June 1999
ORCA Series 3C and 3T FPGAs
Timing Characteristics (continued)
PLC Timing
Table 46.
PFU Output MUX and Direct Routing Timing Characteristics
<
<
<
<
DD
A
DD
A
T
OR3Cxx Commercial: V
= 5.0 V ± 5%, 0 °C
= 3.0 V to 3.6 V, 0 °C
T
70 °C; Industrial: V
= 5.0 V ± 10%, –40 °C
DD
+85 °C.
<
<
<
<
DD
A
A
T
OR3Txxx Commercial: V
T
70 °C; Industrial: V
= 3.0 V to 3.6 V, –40 °C
+85 °C.
Speed
Parameter
Unit
Symbol
-7
Min Max Min Max Min Max Min Max
-4
-5
-6
J
DD
(T = 85 °C, V = min)
PFU Output MUX (Fan-out = 1)
OMUX_DEL
COO9_DEL
RCOO8_DEL
Output MUX Delay (F[7:0]/Q[7:0] to O[9:0])
Carry-out MUX Delay (COUT to O9)
Registered Carry-out MUX Delay (REGCOUT
to O8)
—
—
—
0.50
0.34
0.34
—
—
—
0.39
0.26
0.26
—
—
—
0.35
0.24
0.24
—
—
—
0.28
0.18
0.18
ns
ns
ns
Direct Routing
FDBK_DEL
ODIR_DEL
DDIR_DEL
PFU Feedback (xSW)*
PFU to Orthogonal PFU Delay (xSW to xSW)
PFU to Diagonal PFU Delay (xBID to xSW)
—
—
—
1.74
2.21
2.69
—
—
—
1.41
1.77
2.19
—
—
—
1.48
1.75
2.53
—
—
—
1.14
1.39
1.98
ns
ns
ns
* This is general feedback using switching segments. See the combinatorial PFU timing table for softwired look-up table feedback timing.
SLIC Timing
.
Table 47 Supplemental Logic and Interconnect Cell (SLIC) Timing Characteristics
DD = 5.0 V ± 5%, 0 °C < TA < 70 °C; Industrial: VDD = 5.0 V ± 10%, –40 °C < TA < +85 °C.
OR3Cxx Commercial: V
OR3Txxx Commercial: V
<
<
<
<
A
T +85 °C.
DD
A
T
DD
= 3.0 V to 3.6 V, 0 °C
70 °C; Industrial: V
= 3.0 V to 3.6 V, –40 °C
Speed
Parameter
Unit
Symbol
-4
-5
-6
-7
J
DD
(T = 85 °C, V = min)
Min Max Min Max Min Max Min Max
3-Statable BIDIs
BUF_DEL
OBUF_DEL
TRI_DEL
BIDI Delay (BRx to BLx, BLx to BRx)
BIDI Delay (Ox to BRx, Ox to BLx)
BIDI 3-state Enable/Disable Delay (TRI to BL, BR)
BIDI 3-state Enable/Disable Delay
—
—
—
—
0.84
0.72
2.55
3.59
—
—
—
—
0.70
0.61
1.90
2.65
—
—
—
—
0.94
0.87
1.31
1.91
—
—
—
—
0.77 ns
0.70 ns
1.01 ns
1.48 ns
DECTRI_DEL
(BL, BR via DEC, TRI to BL, BR)
Decoder
DEC98_DEL
DEC_DEL
Decoder Delay (BR[9:8], BL[9:8] to DEC)
Decoder Delay (BR[7:0], BL[7:0] to DEC)
—
—
2.39
2.35
—
—
1.85
1.82
—
—
1.27
1.23
—
—
1.02 ns
0.99 ns
Lucent Technologies Inc.
111
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