DS692 Datasheet, PDF (13/41 Pages) Xilinx, Inc – Radiation-Hardened

Radiation-Hardened, Space-Grade Virtex-5QV FPGA Data Sheet: DC and AC Switching Characteristics
Switching Characteristics
All values represented in this data sheet are based on a speed specification version. Switching characteristics are specified
on a per-speed-grade basis and can be designated as Advance, Preliminary, or Production. Each designation is defined as
follows:
Advance
These specifications are based on simulations only and are typically available soon after device design specifications are
frozen. Although speed grades with this designation are considered relatively stable and conservative, some
under-reporting might still occur.
Preliminary
These specifications are based on complete engineering sample (ES) 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 specifications are released once enough production silicon of a particular device family member has been
characterized to provide full correlation between specifications and devices over numerous production lots. There is no
under-reporting of delays, and customers receive formal notification of any subsequent changes. Typically, the slowest
speed grades transition to Production before faster speed grades.
All specifications are always representative of worst-case supply voltage and junction temperature conditions.
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 device.
Table 26 correlates the current status of each Virtex-5QV device on a per speed grade basis.
Table 26: Virtex-5QV Device Speed Grade Designations
Device
Speed Grade Designations
Advance
Preliminary
Production
XQR5VFX130
-1
Testing of Switching Characteristics
All devices are 100% functionally tested. Internal timing parameters are derived from measuring internal test patterns. Listed
below are representative values. For more specific, more precise, and worst-case guaranteed data, use the values reported
by the static timing analyzer and back-annotate to the simulation net list. Unless otherwise noted, values apply to the
Virtex-5QV device.
Production Silicon and ISE Software Status
In some cases, a particular family member (and speed grade) is released to production before a speed specification is
released with the correct label (Advance, Preliminary, Production). Any labeling discrepancies are corrected in subsequent
speed specification releases. Table 27 lists the production released Virtex-5QV family member, speed grade, and the
minimum corresponding supported speed specification version and ISE® software revisions. The ISE software and speed
specifications listed are the minimum releases required for production. All subsequent releases of software and speed
specifications are valid.
Table 27: Virtex-5QV Device Production Software and Speed Specification Release
Device
XQR5VFX130
Speed Grade Designation
-1
ISE 13.2 with overlay using speed specification v1.0⁽¹⁾
Notes:
1. Production timing support for the XQR5VFX130 device requires ISE 13.2 and the XQR overlay with speed specification v1.0. Contact your
local FAE for more information.
DS692 (v1.3.1) January 16, 2015
Product Specification
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