XC1800 Datasheet, PDF (15/16 Pages) Xilinx, Inc – XC1800 Series of In-System

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XC1800 Series of In-System Programmable Configuration PROMs
AC Characteristics Over Operating Condition When Cascading
RESET/OE
CE
CLK
12 TCDF
DATA
Last Bit
13 TOCK
15 ^TOOE
First Bit
CEO
14 ^TOCE
14 ^TOCE
99020800
Symbol
Description
Min
Max
Units
12 T_CDF
13 T_OCK
14 T_OCE
15 T_OOE
CLK to Data Float Delay^{2, 3}
CLK to CEO Delay³
CE to CEO Delay³
RESET/OE to CEO Delay³
50
ns
30
ns
35
ns
30
ns
Notes: 1. AC test load = 50 pF
2. Float delays are measured with 5 pF AC loads. Transition is measured at +/- 200mV from steady state active levels.
3. Characterized but not 100% tested.
4. All AC parameters are measured with V_IL = 0.0 V and V_IH = 3.0 V.
September 17, 1999 (Version 1.3)
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