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Kintex-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 33: DSP48E1 Switching Characteristics (Cont’d)
Speed Grade
Symbol
Description
1.0V
0.9V
Units
-3
-2/-2L
-1
-1M
-2L
Setup and Hold Times of the RST Pins
T DSPDCK_{RSTA; RSTB}_{AREG; BREG} /
T DSPCKD_{RSTA; RSTB}_{AREG; BREG}
T DSPDCK_RSTC_CREG / T DSPCKD_RSTC_CREG
T DSPDCK_RSTD_DREG / T DSPCKD_RSTD_DREG
{RSTA, RSTB} input to {A, B}
register CLK
RSTC input to C register CLK
RSTD input to D register CLK
0.34/
0.10
0.06/
0.22
0.37/
0.06
0.39/
0.11
0.07/
0.24
0.42/
0.06
0.47/
0.13
0.08/
0.26
0.50/
0.07
0.47/
0.14
0.08/
0.26
0.50/
0.07
0.53/
0.34
0.08/
0.31
0.57/
0.07
ns
ns
ns
T DSPDCK_RSTM_MREG / T DSPCKD_RSTM_MREG RSTM input to M register CLK
0.18/
0.18
0.20/
0.21
0.23/
0.24
0.23/
0.24
0.24/
0.29
ns
T DSPDCK_RSTP_PREG / T DSPCKD_RSTP_PREG
RSTP input to P register CLK
0.24/
0.01
0.26/
0.01
0.30/
0.01
0.30/
0.11
0.37/
0.00
ns
Combinatorial Delays from Input Pins to Output Pins
T DSPDO_A_CARRYOUT_MULT
T DSPDO_D_P_MULT
T DSPDO_A_P
T DSPDO_C_P
A input to CARRYOUT output
using multiplier
D input to P output using
multiplier
A input to P output not using
multiplier
C input to P output
3.21
3.15
1.30
1.13
3.69
3.61
1.48
1.30
4.39
4.30
1.76
1.55
4.39
4.30
1.76
1.55
5.60
5.44
2.10
1.84
ns
ns
ns
ns
Combinatorial Delays from Input Pins to Cascading Output Pins
T DSPDO_{A; B}_{ACOUT; BCOUT}
T DSPDO_{A, B}_CARRYCASCOUT_MULT
{A, B} input to {ACOUT,
BCOUT} output
{A, B} input to
CARRYCASCOUT output
0.47
3.44
0.53
3.94
0.63
4.69
0.63
4.69
0.75
5.96
ns
ns
using multiplier
T DSPDO_D_CARRYCASCOUT_MULT
T DSPDO_{A, B}_CARRYCASCOUT
D input to CARRYCASCOUT
output using multiplier
{A, B} input to
CARRYCASCOUT output not
3.36
1.50
3.85
1.72
4.58
2.04
4.58
2.04
5.77
2.44
ns
ns
using multiplier
T DSPDO_C_CARRYCASCOUT
C input to CARRYCASCOUT
output
1.34
1.53
1.83
1.83
2.18
ns
Combinatorial Delays from Cascading Input Pins to All Output Pins
T DSPDO_ACIN_P_MULT
T DSPDO_ACIN_P
T DSPDO_ACIN_ACOUT
T DSPDO_ACIN_CARRYCASCOUT_MULT
ACIN input to P output using
multiplier
ACIN input to P output not
using multiplier
ACIN input to ACOUT output
ACIN input to
CARRYCASCOUT output
3.09
1.16
0.32
3.30
3.55
1.33
0.37
3.79
4.24
1.59
0.45
4.52
4.24
1.59
0.45
4.52
5.42
2.07
0.53
5.76
ns
ns
ns
ns
using multiplier
T DSPDO_ACIN_CARRYCASCOUT
ACIN input to
CARRYCASCOUT output not
1.37
1.57
1.87
1.87
2.40
ns
using multiplier
T DSPDO_PCIN_P
T DSPDO_PCIN_CARRYCASCOUT
PCIN input to P output
PCIN input to
CARRYCASCOUT output
0.94
1.15
1.08
1.32
1.29
1.57
1.29
1.57
1.54
1.88
ns
ns
DS182 (v2.8) March 4, 2014
Product Specification
36
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