Virtex-6 CXT Family Data Sheet
DS153 (v1.6) February 11, 2011
Product Specification
39
DSP48E1 Switching Characteristics
Table 51: DSP48E1 Switching Characteristics
Symbol
Description
Speed Grade
Units
-2
-1
Setup and Hold Times of Data/Control Pins to the Input Register Clock
TDSPDCK_{A, ACIN; B, BCIN}_{AREG; BREG}/
TDSPCKD_{A, ACIN; B, BCIN}_{AREG; BREG}
{A, ACIN, B, BCIN} input to {A, B} register CLK
0.35/0.34
0.41/0.39
ns
TDSPDCK_C_CREG/TDSPCKD_C_CREG
C input to C register CLK
0.22/0.24
0.26/0.27
ns
TDSPDCK_D_DREG/TDSPCKD_D_DREG
D input to D register CLK
0.15/0.39
0.17/0.44
ns
Setup and Hold Times of Data Pins to the Pipeline Register Clock
TDSPDCK_{A, ACIN, B, BCIN}_PREG_MULT/
TDSPCKD_{A, ACIN, B, BCIN}_PREG_MULT
{A, ACIN, B, BCIN} input to M register CLK
3.21/0.02
3.69/0.02
ns
TDSPDCK_{A, D}_ADREG/ TDSPCKD_{A, D}_ADREG
{A, D} input to AD register CLK
1.69/0.13
1.94/0.15
ns
Setup and Hold Times of Data/Control Pins to the Output Register Clock
TDSPDCK_{A, ACIN, B, BCIN}_PREG_MULT/
TDSPCKD_{A, ACIN, B, BCIN}_PREG_MULT
{A, ACIN, B, BCIN} input to P register CLK using
multiplier
5.20/–0.19
5.97/–0.22
ns
TDSPDCK_D_DREG_MULT/ TDSPCKD_D_DREG_MULT
D input to P register CLK
4.90/–0.65
5.63/–0.75
ns
TDSPDCK_{A, ACIN, B, BCIN}_PREG/
TDSPCKD_{A, ACIN, B, BCIN}_PREG
{A, ACIN, B, BCIN} input to P register CLK not
using multiplier
2.15/–0.19
2.47/–0.22
ns
TDSPDCK_C_PREG/ TDSPCKD_C_PREG
C input to P register CLK
1.91/–0.14
2.19/–0.17
ns
TDSPDCK_{PCIN, CARRYCASCIN, MULTSIGNIN}_PREG/
TDSPCKD_{PCIN, CARRYCASCIN, MULTSIGNIN}_PREG
{PCIN, CARRYCASCIN, MULTSIGNIN} input to
P register CLK
1.67/–0.04
1.92/–0.05
ns
Setup and Hold Times of the CE Pins
TDSPDCK_{CEA; CEB}_{AREG; BREG}/
TDSPCKD_{CEA; CEB}_{AREG; BREG}
{CEA; CEB} input to {A; B} register CLK
0.22/0.25
0.25/0.29
ns
TDSPDCK_CEC_CREG/ TDSPCKD_CEC_CREG
CEC input to C register CLK
0.24/0.23
0.28/0.27
ns
TDSPDCK_CED_DREG/ TDSPCKD_CED_DREG
CED input to D register CLK
0.31/0.14
0.35/0.16
ns
TDSPDCK_CEM_MREG/ TDSPCKD_CEM_MREG
CEM input to M register CLK
0.26/0.25
0.30/0.28
ns
TDSPDCK_CEP_PREG/ TDSPCKD_CEP_PREG
CEP input to P register CLK
0.46/0.03
0.53/0.03
ns
Setup and Hold Times of the RST Pins
TDSPDCK_{RSTA; RSTB}_{AREG; BREG}/
TDSPCKD_{RSTA; RSTB}_{AREG; BREG}
{RSTA, RSTB} input to {A, B} register CLK
0.38/0.22
0.43/0.25
ns
TDSPDCK_RSTC_CREG/ TDSPCKD_RSTC_CREG
RSTC input to C register CLK
0.23/0.09
0.27/0.11
ns
TDSPDCK_RSTD_DREG/ TDSPCKD_RSTD_DREG
RSTD input to D register CLK
0.38/0.19
0.44/0.21
ns
TDSPDCK_RSTM_MREG/ TDSPCKD_RSTM_MREG
RSTM input to M register CLK
0.26/0.30
0.30/0.35
ns
TDSPDCK_RSTP_PREG/ TDSPCKD_RSTP_PREG
RSTP input to P register CLK
0.33/0.05
0.41/0.06
ns
Combinatorial Delays from Input Pins to Output Pins
TDSPDO_{A, B}_{P, CARRYOUT}_MULT
{A, B} input to {P, CARRYOUT} output using
multiplier
5.08
5.84
ns
TDSPDO_D_{P, CARRYOUT}_MULT
D input to {P, CARRYOUT} output using
multiplier
4.82
5.54
ns
TDSPDO_{A, B}_{P, CARRYOUT}
{A, B} input to {P, CARRYOUT} output not using
multiplier
2.07
2.38
ns
TDSPDO_{C, CARRYIN}_{P, CARRYOUT}
{C, CARRYIN} input to {P, CARRYOUT} output
1.83
2.10
ns