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
F MAX_NOPIPELINEREG
F MAX_NOPIPELINEREG_PATDET
Without pipeline registers
(MREG, ADREG)
Without pipeline registers
(MREG, ADREG) with pattern
306.84
285.23
267.81
249.13
225.02
209.38
225.02
209.38
177.15
165.32
MHz
MHz
detect
Clock Buffers and Networks
Table 34: Global Clock Switching Characteristics (Including BUFGCTRL)
Speed Grade
Symbol
Description
1.0V
0.9V
Units
-3
-2/-2L
-1
-1M
-2L
T BCCCK_CE /T BCCKC_CE
T BCCCK_S /T BCCKC_S (1)
CE pins Setup/Hold
S pins Setup/Hold
0.12/0.30 0.14/0.38 0.26/0.38 0.26/0.92 0.23/0.40
0.12/0.30 0.14/0.38 0.26/0.38 0.26/0.92 0.23/0.40
ns
ns
T BCCKO_O (2)
BUFGCTRL delay from I0/I1 to O
0.08
0.10
0.12
0.12
0.10
ns
Maximum Frequency
F MAX_BUFG
Global clock tree (BUFG)
741.00
710.00
625.00
625.00
560.00
MHz
Notes:
1.
2.
T BCCCK_CE and T BCCKC_CE must be satisfied to assure glitch-free operation of the global clock when switching between clocks. These
parameters do not apply to the BUFGMUX primitive that assures glitch-free operation. The other global clock setup and hold times are
optional; only needing to be satisfied if device operation requires simulation matches on a cycle-for-cycle basis when switching between
clocks.
T BGCKO_O (BUFG delay from I0 to O) values are the same as T BCCKO_O values.
Table 35: Input/Output Clock Switching Characteristics (BUFIO)
Speed Grade
Symbol
Description
1.0V
0.9V
Units
-3
-2/-2L
-1
-1M
-2L
T BIOCKO_O
Clock to out delay from I to O
1.04
1.14
1.32
1.32
1.48
ns
Maximum Frequency
F MAX_BUFIO
I/O clock tree (BUFIO)
800.00
800.00
710.00
710.00
710.00
MHz
Table 36: Regional Clock Buffer Switching Characteristics (BUFR)
Speed Grade
Symbol
Description
1.0V
0.9V
Units
-3
-2/-2L
-1
-1M
-2L
T BRCKO_O
T BRCKO_O_BYP
T BRDO_O
Clock to out delay from
I to O
Clock to out delay from I to O with
Divide Bypass attribute set
Propagation delay from CLR to O
0.60
0.30
0.71
0.65
0.32
0.75
0.77
0.38
0.96
0.77
0.38
0.96
1.06
0.57
0.93
ns
ns
ns
DS182 (v2.8) March 4, 2014
Product Specification
38
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