xc4000a Xilinx Corp., xc4000a Datasheet - Page 3

• Manufacturer Part Number: xc4000a
• Description: Logic Cell Array Family
• Manufacturer: Xilinx Corp.

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.
Wide Decoder 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, there derived from benchmark timing patterns. The following
guidelines relflect 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.
Note: These delays are specified from the decoder input to the decoder output. For pin-to-pin delays, add the input delay (T
and output delay (one of 4 modes), as listed on page 2-70.
Description
Global Signal Distribution
Description
Full length, both pull-ups,
inputs from IOB I-pins
Full length, both pull-ups
inputs from internal logic
Half length, one pull-up
inputs from IOB I-pins
Half length, one pull-up
inputs from internal logic
From pad through primary buffer, to any clock k
From pad through secondary buffer, to any clock k
Symbol
T
T
T
T
Speed Grade
WAF
WAFL
WAO
WAOL
XC4002A
XC4003A
XC4004A
XC4005A
XC4002A
XC4003A
XC4004A
XC4005A
XC4002A
XC4003A
XC4004A
XC4005A
XC4002A
XC4003A
XC4004A
XC4005A
2-73
Device
Symbol
T
T
PG
SG
Speed Grade
XC4002A
XC4003A
XC4004A
XC4005A
XC4002A
XC4003A
XC4004A
XC4005A
Device
Max
10.0
11.5
12.0
12.5
13.0
10.0
11.5
12.0
12.5
13.0
8.5
9.0
9.5
8.5
9.0
9.5
-6
Max
7.7
7.8
7.9
8.0
8.7
8.8
8.9
9.0
-6
Max
10.5
11.0
11.5
12.0
10.5
11.0
11.5
12.0
7.5
8.0
8.5
9.0
7.5
8.0
8.5
9.0
-5
Max
5.7
5.8
5.9
6.0
6.7
6.8
6.9
7.0
-5
5.0
6.0
7.0
8.0
6.0
7.0
8.0
9.0
Max
-4
Max
5.1
5.5
6.3
6.7
-4
Units
Units
PID
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
)