IGLOO PLUS Low Power Flash FPGAs
Re vi s i on 11
2 - 45
Input Register
Timing Characteristics
1.5 V DC Core Voltage
Figure 2-14 Input Register Timing Diagram
50%
Clear
Out_1
CLK
Data
Preset
50%
t
ISUD
t
IHD
50%
t
ICLKQ
1
0
t
IRECPRE
t
IREMPRE
t
IRECCLR
t
IREMCLR
t
IWCLR
t
IWPRE
t
IPRE2Q
t
ICLR2Q
t
ICKMPWH tICKMPWL
50%
Table 2-74 Input Data Register Propagation Delays
Commercial-Case Conditions: TJ = 70°C, Worst-Case VCC = 1.425 V
Parameter
Description
Std.
Units
tICLKQ
Clock-to-Q of the Input Data Register
0.41
ns
tISUD
Data Setup Time for the Input Data Register
0.32
ns
tIHD
Data Hold Time for the Input Data Register
0.00
ns
tICLR2Q
Asynchronous Clear-to-Q of the Input Data Register
0.57
ns
tIPRE2Q
Asynchronous Preset-to-Q of the Input Data Register
0.57
ns
tIREMCLR
Asynchronous Clear Removal Time for the Input Data Register
0.00
ns
tIRECCLR
Asynchronous Clear Recovery Time for the Input Data Register
0.24
ns
tIREMPRE
Asynchronous Preset Removal Time for the Input Data Register
0.00
ns
tIRECPRE
Asynchronous Preset Recovery Time for the Input Data Register
0.24
ns
tIWCLR
Asynchronous Clear Minimum Pulse Width for the Input Data Register
0.19
ns
tIWPRE
Asynchronous Preset Minimum Pulse Width for the Input Data Register
0.19
ns
tICKMPWH
Clock Minimum Pulse Width High for the Input Data Register
0.31
ns
tICKMPWL
Clock Minimum Pulse Width Low for the Input Data Register
0.28
ns
Note:
For specific junction temperature and voltage supply levels, refer to
Table 2-6 on page 2-6 for derating values.