參數(shù)資料
型號: XC5000
廠商: Xilinx, Inc.
英文描述: Logic Cell Array Family
中文描述: 邏輯單元陣列系列
文件頁數(shù): 30/48頁
文件大?。?/td> 434K
代理商: XC5000
XC5200 Logic Cell Array Family
Preliminary
26
Global Buffer Switching Characteristic Guidelines
Testing of the switching parameters is modeled after testing methods specified by MIL-M-38510/605. All devices are
100% functionally tested. Since many internal timing parameters cannot be measured directly, they are derived from
benchmark timing patterns. The following guidelines reflect worst-case values over the recommended operating
conditions. For more detailed, more precise, and more up-to-date timing information, use the values provided by the
XACT timing calculator and used in the simulator.
Speed Grade
-6
-5
-4
Description
Symbol
Device
Max
(ns)
Max
(ns)
Max
(ns)
Global Signal Distribution
From pad through global buffer, to any clock (CK)
T
BUFG
XC5202
XC5204
XC5206
XC5210
XC5215
9.4
9.4
8.8
8.8
Internal Clock to Output Pad Delay
From clock (CK) to output pad (fast), using direct connect
between Q and output (O)
T
OKPOF
XC5202
XC5204
XC5206
XC5210
XC5215
XC5202
XC5204
XC5206
XC5210
XC5215
9.9
9.9
8.9
8.9
From clock (CK) to output pad (slew-limited), using direct
connect between Q and output (O)
T
OKPOS
14.8
14.8
12.7
12.7
Note:
1.
Die-size-dependent parameters are based upon XC5210 characterization. Production specifications will vary with array
size.
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