XC2VP20-6FF1152C Xilinx, Inc., XC2VP20-6FF1152C Datasheet - Page 61

• Manufacturer Part Number: XC2VP20-6FF1152C
• Description: Pro Platform FPGA
• Manufacturer: Xilinx, Inc.

Table 12: Register-to-Register Performance (Continued)
Virtex-II Pro Switching Characteristics
Switching
per-speed-grade basis and can be designated as Advance,
Preliminary, or Production. Note that
mance Characteristics, page 59
guidelines, as well. Each designation is defined as follows:
Advance: These speed files are based on simulations only
and are typically available soon after device design specifi-
cations are frozen. Although speed grades with this desig-
nation are considered relatively stable and conservative,
some under-reporting might still occur.
Preliminary: These speed files are based on complete ES
(engineering sample) silicon characterization. Devices and
speed grades with this designation are intended to give a
better indication of the expected performance of production
silicon. The probability of under-reporting delays is greatly
reduced as compared to Advance data.
Production: These speed files are released once enough
production silicon of a particular device family member has
been characterized to provide full correlation between
speed files and devices over numerous production lots.
There is no under-reporting of delays, and customers
receive formal notification of any subsequent changes. Typ-
ically, the slowest speed grades transition to Production
before faster speed grades.
Since individual family members are produced at different
times, the migration from one category to another depends
completely on the status of the fabrication process for each
DS083-3 (v1.0) January 31, 2002
Advance Product Specification
CAMs in SRL
32 x 16-bit
64 x 32-bit
128 x 40-bit
256 x 48-bit
1024 x 16-bit
1024 x 72-bit
R
characteristics
Description
are
are subject to these
Virtex-II Pro Perfor-
specified
Register-to-Register Performance
on
Virtex-II Pro™ Platform FPGAs: DC and Switching Characteristics
www.xilinx.com
1-800-255-7778
a
device.
Virtex-II Pro device with a corresponding speed file desig-
nation.
All specifications are always representative of worst-case
supply voltage and junction temperature conditions.
Table 13: Virtex-II Pro Device Speed Grade
Designations
Testing of Switching Characteristics
All devices are 100% functionally tested. Internal timing
parameters are derived from measuring internal test pat-
terns. Listed below are representative values. For more
specific, more precise, and worst-case guaranteed data,
use the values reported by the static timing analyzer (TRCE
in the Xilinx Development System) and back-annotate to the
simulation net list. Unless otherwise noted, values apply to
all Virtex-II Pro devices.
XC2VP2
XC2VP4
XC2VP7
XC2VP20
XC2VP50
Device
Table 13
Advance
-8, -7, -6
-8, -7, -6
-8, -7, -6
-8, -7, -6
-8, -7, -6
correlates the current status of each
Speed Grade Designations
Device Used & Speed Grade
Preliminary
Production
61