XC4028EX-3HQ240I Xilinx Inc, XC4028EX-3HQ240I Datasheet - Page 49

• Manufacturer Part Number: XC4028EX-3HQ240I
• Description: FPGA XC4000E Family 28K Gates 2432 Cells 0.35um Technology 5V 240-Pin HSPQFP EP
• Manufacturer: Xilinx Inc

Specifications of XC4028EX-3HQ240I

• Package: 240HSPQFP EP
• Family Name: XC4000E
• Device Logic Gates: 28000
• Device Logic Units: 2432
• Device System Gates: 50000
• Number Of Registers: 2560
• Typical Operating Supply Voltage: 5 V
• Maximum Number Of User I/os: 193
• Ram Bits: 32768
• Re-programmability Support: Yes

May 14, 1999 (Version 1.6)
Figure 47: Start-up Timing
CCLK_NOSYNC
UCLK_NOSYNC
R
CCLK_SYNC
UCLK_SYNC
XC4000E/X
XC4000E/X
XC4000E/X
XC4000E/X
XC2000
XC3000
CCLK
Synchronization
Product Obsolete or Under Obsolescence
Uncertainty
Global Reset
Global Reset
DONE
I/O
DONE
I/O
DONE
I/O
DONE
I/O
DONE
I/O
DONE
I/O
GSR Active
GSR Active
GSR Active
GSR Active
Length Count Match
C1, C2 or C3
XC4000E and XC4000X Series Field Programmable Gate Arrays
DONE IN
C1
C1
C1
Di
Di
DONE IN
Di+1
Di+1
C2
C2
C2
F
U2
U2
U2
U2
Di
UCLK Period
Di
Di+1
Di+1
U3
U3
U3
F
C3
C3
C3
CCLK Period
Di+2
Di+2
U4
U4
U4
F
F
C4
C4
C4
F
F
X9024
F = Finished, no more
configuration clocks needed
Daisy-chain lead device
must have latest F
Heavy lines describe
default timing
6-53
6