XC2S50E-6TQG144C Xilinx Inc, XC2S50E-6TQG144C Datasheet - Page 41

• Manufacturer Part Number: XC2S50E-6TQG144C
• Description: IC SPARTAN-IIE FPGA 50K 144-TQFP
• Manufacturer: Xilinx Inc
• Series: Spartan™-IIEr

Specifications of XC2S50E-6TQG144C

• Number Of Logic Elements/cells: 1728
• Number Of Labs/clbs: 384
• Total Ram Bits: 32768
• Number Of I /o: 102
• Number Of Gates: 50000
• Voltage - Supply: 1.71 V ~ 1.89 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 122-1331

Calculation of T
Capacitance
T
to the pad. The values for T
capacitive load (C
table
For other capacitive loads, use the formulas below to calcu-
late an adjusted propagation delay, T
Where:
Delay Measurement Methodology
Notes:
1.
2.
3.
4.
DS077-3 (v2.3) June 18, 2008
Product Specification
LVTTL
LVCMOS2
PCI33_3
PCI66_3
GTL
GTL+
HSTL Class I
HSTL Class III V
HSTL Class IV V
SSTL3 I and II V
SSTL2 I and II V
CTT
AGP
LVDS
LVPECL
IOOP
Standard
Adj
C
F
Input waveform switches between V
Measurements are made at V
Minimum. Worst-case values are reported.
I/O parameter measurements are made with the capacitance
values shown in the following table,
TIOOP. Refer to Application Note
terminations.
I/O standard measurements are reflected in the IBIS model
information except where the IBIS format precludes it.
Constants for Calculating
L
LOAD
is the propagation delay from the O Input of the IOB
T
IOOP1
R
is selected from
for Different
to the I/O standard used
is the capacitive load for the design
is the capacitance scaling factor
= T
(0.2xV
1.2 – 0.125 1.2 + 0.125
V
V
V
V
REF
1.6 – 0.3
SL
REF
REF
REF
REF
REF
REF
REF
IOOP
V
V
IOOP
) for each I/O standard as listed in the
REF
L
0
0
– 0.75 V
(1)
– 0.2
– 0.2
– 0.5
– 0.5
– 0.5
– 1.0
– 0.2
CCO
+ Adj + (C
Standards(1),
–
Per PCI Spec
Per PCI Spec
as a Function of
)
IOOP
IOB Output Delay Adjustments
(0.2xV
V
V
V
V
V
V
V
REF
TIOOP, below.
REF
1.6 + 0.3
REF
REF
REF
REF
REF
REF
REF
V
are based on the standard
V
REF
2.5
LOAD
H
Typ, Maximum, and
XAPP179
3
+ 0.75 V
+ 0.2
+ 0.2
+ 0.5
+ 0.5
+ 0.5
+ 1.0
+ 0.2
Constants for Calculating
(1)
L
CCO
IOOP1
and V
+
page
– C
)
.
Meas.
H
SL
Point
1.125
V
V
V
V
V
V
V
V
for appropriate
.
40, according
1.4
1.2
1.6
REF
REF
REF
REF
REF
REF
REF
REF
REF
) * F
L
Per AGP
Typ
V
0.80
0.75
0.90
0.90
1.25
Spec
1.0
1.5
1.5
REF
-
-
-
-
www.xilinx.com
(2)
Spartan-IIE FPGA Family: DC and Switching Characteristics
Constants for Calculating T
Notes:
1.
2.
LVTTL Fast Slew Rate, 2 mA drive
LVTTL Fast Slew Rate, 4 mA drive
LVTTL Fast Slew Rate, 6 mA drive
LVTTL Fast Slew Rate, 8 mA drive
LVTTL Fast Slew Rate, 12 mA drive
LVTTL Fast Slew Rate, 16 mA drive
LVTTL Fast Slew Rate, 24 mA drive
LVTTL Slow Slew Rate, 2 mA drive
LVTTL Slow Slew Rate, 4 mA drive
LVTTL Slow Slew Rate, 6 mA drive
LVTTL Slow Slew Rate, 8 mA drive
LVTTL Slow Slew Rate, 12 mA drive
LVTTL Slow Slew Rate, 16 mA drive
LVTTL Slow Slew Rate, 24 mA drive
LVCMOS2
LVCMOS18
PCI 33 MHz 3.3V
PCI 66 MHz 3.3V
GTL
GTL+
HSTL Class I
HSTL Class III
HSTL Class IV
SSTL2 Class I
SSTL2 Class II
SSTL3 Class I
SSTL3 Class II
CTT
AGP
I/O parameter measurements are made with the capacitance
values shown above. Refer to Application Note
appropriate terminations.
I/O standard measurements are reflected in the IBIS model
information except where the IBIS format precludes it.
Standard
IOOP
C
(pF)
SL
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
10
10
20
20
20
30
30
30
30
20
10
0
0
(1)
XAPP179
0.41
0.20
0.13
0.079
0.044
0.043
0.033
0.41
0.20
0.100
0.086
0.058
0.050
0.048
0.041
0.050
0.050
0.033
0.014
0.017
0.022
0.016
0.014
0.028
0.016
0.029
0.016
0.035
0.037
(ns/pF)
F
L
for
41