Virtex-6 FPGA Data Sheet: DC and Switching Characteristics
Speed Grade
Table 58: DSP48E1 Switching Characteristics (Cont’d)
Symbol
Description
Units
-1
(XC)
-1
(XQ)
-3
-2
-1L
TDSPDO_{PCIN, CARRYCASCIN, MULTSIGNIN}_
{PCOUT, CARRYCASCOUT, MULTSIGNOUT}
{PCIN, CARRYCASCIN,
MULTSIGNIN} input to {PCOUT,
CARRYCASCOUT,
1.28 1.46
1.72
1.72
2.06
ns
MULTSIGNOUT} output
Clock to Outs from Output Register Clock to Output Pins
TDSPCKO_{P, CARRYOUT}_PREG
CLK (PREG) to {P, CARRYOUT} 0.38 0.43
output
0.50
0.66
0.50
0.66
0.57
0.76
ns
ns
TDSPCKO_{PCOUT, CARRYCASCOUT, MULTSIGNOUT}_PREG CLK (PREG) to
{CARRYCASCOUT, PCOUT,
MULTSIGNOUT} output
0.50 0.56
Clock to Outs from Pipeline Register Clock to Output Pins
TDSPCKO_{P, CARRYOUT}_MREG
CLK (MREG) to {P, CARRYOUT} 1.72 1.96
output
2.30
2.43
2.30
2.43
2.69
2.88
ns
ns
TDSPCKO_{PCOUT, CARRYCASCOUT, MULTSIGNOUT}_MREG CLK (MREG) to {PCOUT,
1.81 2.06
CARRYCASCOUT,
MULTSIGNOUT} output
TDSPCKO_{P, CARRYOUT}_ADREG_MULT
CLK (ADREG) to {P,
CARRYOUT} output
2.79 3.16
2.87 3.26
3.72
3.84
3.72
3.84
4.32
4.51
ns
ns
TDSPCKO_{PCOUT, CARRYCASCOUT,
MULTSIGNOUT}_ADREG_MULT
CLK (ADREG) to {PCOUT,
CARRYCASCOUT,
MULTSIGNOUT} output
Clock to Outs from Input Register Clock to Output Pins
TDSPCKO_{P, CARRYOUT}_{AREG, BREG}_MULT CLK (AREG, BREG) to {P,
3.97 4.52
1.70 1.93
5.36
2.27
5.36
2.27
6.20
2.65
ns
ns
CARRYOUT} output using
multiplier
TDSPCKO_{P, CARRYOUT}_{AREG, BREG}
CLK (AREG, BREG) to {P,
CARRYOUT} output not using
multiplier
TDSPCKO_{P, CARRYOUT}_CREG
CLK (CREG) to {P, CARRYOUT} 1.70 1.93
output
2.27
5.25
2.27
5.25
2.80
6.07
ns
ns
TDSPCKO_{P, CARRYOUT}_DREG_MULT
CLK (DREG) to {P, CARRYOUT} 3.89 4.44
output
Clock to Outs from Input Register Clock to Cascading Output Pins
TDSPCKO_{ACOUT; BCOUT}_{AREG; BREG}
CLK (AREG, BREG) to {P,
CARRYOUT} output
0.66 0.76
0.89
5.49
0.89
5.49
1.01
6.39
ns
ns
TDSPCKO_{PCOUT, CARRYCASCOUT,
MULTSIGNOUT}_{AREG, BREG}_MULT
CLK (AREG, BREG) to {PCOUT, 4.05 4.63
CARRYCASCOUT,
MULTSIGNOUT} output using
multiplier
TDSPCKO_{PCOUT, CARRYCASCOUT,
MULTSIGNOUT}_{AREG, BREG}
CLK (AREG, BREG) to {PCOUT, 1.79 2.03
CARRYCASCOUT,
MULTSIGNOUT} output not
using multiplier
2.40
5.38
2.40
2.40
5.38
2.40
2.84
6.26
2.99
ns
ns
ns
TDSPCKO_{PCOUT, CARRYCASCOUT,
MULTSIGNOUT}_DREG_MULT
CLK (DREG) to {PCOUT,
CARRYCASCOUT,
MULTSIGNOUT} output using
multiplier
3.98 4.54
1.78 2.03
TDSPCKO_{PCOUT, CARRYCASCOUT, MULTSIGNOUT}_CREG CLK (CREG) to {PCOUT,
CARRYCASCOUT,
MULTSIGNOUT} output
DS152 (v3.6) March 18, 2014
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Product Specification
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