XC3S250E-4FT256C Xilinx Inc, XC3S250E-4FT256C Datasheet - Page 158
![no-image](/images/no-image-200.jpg)
XC3S250E-4FT256C
Manufacturer Part Number
XC3S250E-4FT256C
Description
FPGA Spartan®-3E Family 250K Gates 5508 Cells 572MHz 90nm (CMOS) Technology 1.2V 256-Pin FTBGA
Manufacturer
Xilinx Inc
Datasheet
1.XC3S100E-4VQG100C.pdf
(233 pages)
Specifications of XC3S250E-4FT256C
Package
256FTBGA
Family Name
Spartan®-3E
Device Logic Cells
5508
Device Logic Units
612
Device System Gates
250000
Number Of Registers
4896
Maximum Internal Frequency
572 MHz
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
172
Ram Bits
221184
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XC3S250E-4FT256C
Manufacturer:
XILINX/赛灵思
Quantity:
20 000
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DC and Switching Characteristics
Byte Peripheral Interface (BPI) Configuration Timing
Table 120: Timing for Byte-wide Peripheral Interface (BPI) Configuration Mode
158
T
T
T
T
T
T
T
T
(Open-Drain)
Symbol
CCLK1
CCLKn
MINIT
INITM
INITADDR
CCO
DCC
CCD
PROG_B
LDC[2:0]
HSWAP
CSO_B
A[23:0]
INIT_B
(Input)
(Input)
(Input)
(Input)
M[2:0]
D[7:0]
CCLK
HDC
Figure 78: Waveforms for Byte-wide Peripheral Interface (BPI) Configuration (BPI-DN mode shown)
Shaded values indicate specifications on attached parallel NOR Flash PROM.
Initial CCLK clock period
CCLK clock period after FPGA loads ConfigRate setting
Setup time on CSI_B, RDWR_B, and M[2:0] mode pins before the rising
edge of INIT_B
Hold time on CSI_B, RDWR_B, and M[2:0] mode pins after the rising
edge of INIT_B
Minimum period of initial A[23:0] address cycle;
LDC[2:0] and HDC are asserted and valid
Address A[23:0] outputs valid after CCLK falling edge
Setup time on D[7:0] data inputs before CCLK rising edge
Hold time on D[7:0] data inputs after CCLK rising edge
T
MINIT
<0:1:0>
HSWAP must be stable before INIT_B goes High and constant throughout the configuration process.
T
INITM
Pin initially pulled High by internal pull-up resistor if HSWAP input is Low.
Pin initially high-impedance (Hi-Z) if HSWAP input is High.
Description
000_0000
T
CCLK1
www.xilinx.com
Mode input pins M[2:0] are sampled when INIT_B goes High. After this point,
input values do not matter until DONE goes High, at which point the mode pins
become user-I/O pins.
Byte 0
T
INITADDR
000_0001
(M[2:0]=<0:1:0>)
(M[2:0]=<0:1:1>)
BPI-DN:
BPI-UP:
Byte 1
T
AVQV
Data
Minimum
New ConfigRate active
T
50
Address
CCLK1
0
5
2
T
DS312-3 (v3.8) August 26, 2009
CCO
Data
T
See
See
See
See
See
DCC
T
Maximum
Product Specification
CCLKn
Table 112
Table 112
Table 116
Table 116
Table 116
Address
Data
5
2
-
-
DS312-3_08_032409
Address
T
CCD
T
cycles
Units
Data
CCLK1
ns
ns
R
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