XC4028EX-3HQ240I Xilinx Inc, XC4028EX-3HQ240I Datasheet - Page 61

• 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

Figure 57: Synchronous Peripheral Mode Programming Switching Characteristics
May 14, 1999 (Version 1.6)
Notes: 1. Peripheral Synchronous mode can be considered Slave Parallel mode. An external CCLK provides timing, clocking in the
CCLK
INIT
CCLK
2. The RDY/BUSY line goes High for one CCLK period after data has been clocked in, although synchronous operation does
3. The pin name RDY/BUSY is a misnomer. In Synchronous Peripheral mode this is really an ACKNOWLEDGE signal.
4. Note that data starts to shift out serially on the DOUT pin 0.5 CCLK periods after it was loaded in parallel. Therefore,
first data byte on the second rising edge of CCLK after INIT goes High. Subsequent data bytes are clocked in on every
eighth consecutive rising edge of CCLK.
not require such a response.
additional CCLK pulses are clearly required after the last byte has been loaded.
RDY/BUSY
R
DOUT
INIT (High) setup time
D0 - D7 setup time
D0 - D7 hold time
CCLK High time
CCLK Low time
CCLK Frequency
Product Obsolete or Under Obsolescence
Description
BYTE
0
XC4000E and XC4000X Series Field Programmable Gate Arrays
0
1
Symbol
T
T
T
T
F
T
CCH
CCL
DC
CD
CC
IC
2
BYTE 0 OUT
3
4
Min
60
50
60
5
0
5
BYTE
1
6
Max
8
7
BYTE 1 OUT
0
Units
MHz
1
ns
ns
ns
ns
s
X6096
6-65
6