R
XC18V00 Series of In-System Programmable Configuration PROMs
AC Characteristics Over Operating Conditions for XC18V04 and XC18V02
CE
T
T
SCE
HCE
OE/RESET
CLK
T
HOE
T
T
HC
LC
T
CYC
T
T
DF
OE
T
T
CAC
OH
T
CE
DATA
T
OH
DS026_06_012000
Symbol
Description
Min
-
Max
Units
TOE
TCE
OE/RESET to data delay
CE to data delay
10
20
20
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
-
TCAC
TOH
CLK to data delay
-
Data hold from CE, OE/RESET, or CLK
CE or OE/RESET to data float delay(2)
Clock periods
0
TDF
-
25
-
TCYC
TLC
50
10
10
25
2
CLK Low time(3)
-
THC
CLK High time(3)
-
TSCE
THCE
THOE
CE setup time to CLK (to guarantee proper counting)(3)
CE High time (to guarantee proper counting)
-
-
OE/RESET hold time (guarantees counters are reset)
25
-
ns
Notes:
1. AC test load = 50 pF.
2. Float delays are measured with 5 pF AC loads. Transition is measured at ±200 mV from steady state active levels.
3. Guaranteed by design, not tested.
4. All AC parameters are measured with VIL = 0.0V and VIH = 3.0V.
5. If THCE High < 2 s, TCE = 2 s.
14
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DS026 (v3.0) November 12, 2001
1-800-255-7778
Product Specification
XILINX [ XILINX, INC ]
