参数资料
型号: XCS20-3TQ84I
厂商: Xilinx, Inc.
英文描述: Spartan and Spartan-XL Families Field Programmable Gate Arrays
中文描述: 斯巴达和Spartan - xL的家庭现场可编程门阵列
文件页数: 35/82页
文件大小: 863K
代理商: XCS20-3TQ84I
Spartan and Spartan-XL Families Field Programmable Gate Arrays
40
DS060 (v1.6) September 19, 2001
1-800-255-7778
Product Specification
R
Readback Switching Charateristics Guidelines
The following guidelines reflect worst-case values over the
recommended operating conditions.
Figure 33: Spartan and Spartan-XL Readback Timing Diagram
Spartan and Spartan-XL Readback Switching Characteristics
Symbol
Description
Min
Max
Units
TRTRC
rdbk.TRIG
rdbk.TRIG setup to initiate and abort Readback
200
-
ns
TRCRT
rdbk.TRIG hold to initiate and abort Readback
50
-
ns
TRCRD
rdclk.I
rdbk.DATA delay
-
250
ns
TRCRR
rdbk.RIP delay
-
250
ns
TRCH
High time
250
500
ns
TRCL
Low time
250
500
ns
Notes:
1.
Timing parameters apply to all speed grades.
2.
If rdbk.TRIG is High prior to Finished, Finished will trigger the first Readback.
TRTRC
TRCRT
TRCH
TRCRR
TRCRD
TRTRC
TRCRT
TRCL
DUMMY
rdbk.DATA
rdbk.RIP
rdclk.I
rdbk.TRIG
Finished
Internal Net
VALID
DS060_32_080400
VALID
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