XC3S100E Xilinx Corp., XC3S100E Datasheet - Page 141

• Manufacturer Part Number: XC3S100E
• Description: Spartan-3e Fpga Family Complete Data Sheet
• Manufacturer: Xilinx Corp.

Table 98: CLB Distributed RAM Switching Characteristics
Table 99: CLB Shift Register Switching Characteristics
DS312-3 (v3.6) May 29, 2007
Product Specification
Clock-to-Output Times
Setup Times
Hold Times
Clock Pulse Width
Clock-to-Output Times
Setup Times
Hold Times
Clock Pulse Width
T
T
WPH
WPH
T
Symbol
Symbol
T
T
T
AH,
T
SHCKO
SRLDS
SRLDH
T
T
T
T
REG
WS
DH
DS
AS
, T
, T
T
WH
WPL
WPL
R
Time from the active edge at the CLK input to data
appearing on the distributed RAM output
Setup time of data at the BX or BY input before the active
transition at the CLK input of the distributed RAM
Setup time of the F/G address inputs before the active
transition at the CLK input of the distributed RAM
Setup time of the write enable input before the active
transition at the CLK input of the distributed RAM
Hold time of the BX, BY data inputs after the active
transition at the CLK input of the distributed RAM
Hold time of the F/G address inputs or the write enable
input after the active transition at the CLK input of the
distributed RAM
Minimum High or Low pulse width at CLK input
Time from the active edge at the CLK input to data
appearing on the shift register output
Setup time of data at the BX or BY input before the active
transition at the CLK input of the shift register
Hold time of the BX or BY data input after the active
transition at the CLK input of the shift register
Minimum High or Low pulse width at CLK input
Description
Description
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0.40
0.46
0.34
0.13
0.88
0.41
0.14
0.88
Min
Min
0
-
-
-5
-5
DC and Switching Characteristics
Max
2.05
Max
3.62
-
-
-
-
-
-
-
-
-
0.46
0.52
0.40
0.15
1.01
0.46
0.16
1.01
Min
Min
0
-
-
-4
-4
Max
2.35
Max
4.16
-
-
-
-
-
-
-
-
-
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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