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DS556 Datasheet, PDF (8/19 Pages) Xilinx, Inc – Available in the following package option
XA2C384 CoolRunner-II Automotive CPLD
R
Internal Timing Parameters (Continued)
Symbol
Parameter(1)
I/O Standard Time Adder Delays 3.3V CMOS/TTL
TIN33
Standard input adder
THYS33
Hysteresis input adder
TOUT33
Output adder
TSLEW33
Output slew rate adder
Notes:
1. 1.5 ns input pin signal rise/fall.
-10
Min.
Max.
-
2.0
-
3.0
-
3.0
-
4.0
-11
Min.
Max.
-
2.0
-
3.0
-
3.0
-
4.0
Switching Characteristics
Switching Test Conditions
Units
ns
ns
ns
ns
VCC = VCCIO = 1.8V, 25oC
6.0
5.5
Device
Under Test
VCC
R1
R2
Test Point
CL
5.0
4.5
4.0
1
2
4
8
16
Number of Outputs Switching
DS095_02_053103
Figure 2: Derating Curve for TPD
Output Type
LVTTL33
R1
268Ω
R2
235Ω
LVCMOS33
275Ω
275Ω
LVCMOS25
188Ω
188Ω
LVCMOS18
112.5Ω 112.5Ω
LVCMOS15
150Ω
150Ω
Notes:
1. CL includes test fixtures and probe capacitance.
2. 1.5 nsec maximum rise/fall times on inputs.
Figure 3: AC Load Circuit
CL
35 pF
35 pF
35 pF
35 pF
35 pF
DS092_03_092302
8
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DS556 (v1.1) May 5, 2007
Product Specification