XC2S50 Xilinx, Inc., XC2S50 Datasheet - Page 54

• Manufacturer Part Number: XC2S50
• Description: Spartan-II 2.5V FPGA Family
• Manufacturer: Xilinx, Inc.

DS001-3 (v2.7) September 3, 2003
Definition of Terms
In this document, some specifications may be designated as Advance or Preliminary. These terms are defined as follows:
Advance: Initial estimates based on simulation and/or extrapolation from other speed grades, devices, or families. Values
are subject to change. Use as estimates, not for production.
Preliminary: Based on preliminary characterization. Further changes are not expected.
Unmarked: Specifications not identified as either Advance or Preliminary are to be considered Final.
Except for pin-to-pin input and output parameters, the AC parameter delay specifications included in this document are
derived from measuring internal test patterns. All limits are representative of worst-case supply voltage and junction
temperature conditions. Typical numbers are based on measurements taken at a nominal V
temperature of 25°C. The parameters included are common to popular designs and typical applications. All specifications
are subject to change without notice.
DC Specifications
Absolute Maximum Ratings
DS001-3 (v2.7) September 3, 2003
Product Specification
Notes:
1.
2.
3.
4.
5.
6.
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those listed under Operating Conditions
is not implied. Exposure to Absolute Maximum Ratings conditions for extended periods of time may affect device reliability.
Power supplies may turn on in any order.
V
Spartan-II I/Os are 5V Tolerant whenever the LVTTL, LVCMOS2, or PCI33_5 signal standard has been selected. With 5V Tolerant
I/Os selected, the Maximum DC overshoot must be limited to either +5.5V or 10 mA, and undershoot must be limited to either –0.5V
or 10 mA, whichever is easier to achieve. The Maximum AC conditions are as follows: The device pins may undershoot to –2.0V or
overshoot to +7.0V, provided this over/undershoot lasts no more than 11 ns with a forcing current no greater than 100 mA.
Without 5V Tolerant I/Os selected, the Maximum DC overshoot must be limited to either V
be limited to –0.5V or 10 mA, whichever is easier to achieve. The Maximum AC conditions are as follows: The device pins may
undershoot to –2.0V or overshoot to V
greater than 100 mA.
For soldering guidelines, see the Packaging Information on the Xilinx web site:
http://www.xilinx.com/publications/products/packaging/index.htm
IN
© 2003 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
Symbol
V
V
V
T
should not exceed V
CCINT
V
V
CCO
STG
T
REF
TS
IN
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
J
Supply voltage relative to GND
Supply voltage relative to GND
Input reference voltage
Input voltage relative to GND
Voltage applied to 3-state output
Storage temperature (ambient)
Junction temperature
CCO
R
by more than 3.6V over extended periods of time (e.g., longer than a day).
(1)
CCO
+ 2.0V, provided this over/undershoot lasts no more than 11 ns with a forcing current no
Description
(3)
(2)
(2)
018
0
www.xilinx.com
1-800-255-7778
0
5V tolerant I/O
No 5V tolerance
5V tolerant I/O
No 5V tolerance
Spartan-II 2.5V FPGA Family:
DC and Switching Characteristics
Product Specification
(4)
(4)
(5)
(5)
CCO
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
Min
–65
+ 0.5V or 10 mA, and undershoot must
-
CCINT
level of 2.5V and a junction
V
V
CCO
CCO
+150
+125
Max
3.0
4.0
3.6
5.5
5.5
+ 0.5
+ 0.5
Module 3 of 4
Units
° C
° C
V
V
V
V
V
V
V
1