R
QPRO Family of XC1700D QML Configuration PROMs
AC Characteristics Over Operating Condition(1,2)
CE
T
T
T
HCE
SCE
SCE
RESET/OE
CLK
T
HOE
T
T
HC
LC
T
CYC
T
T
DF
OE
T
T
CAC
OH
T
CE
DATA
T
OH
DS027_03_021500
XC1736D
XC1765D
XC17128D
XC17256D
Symbol
Description
Min
-
Max
Min
Max
Units
ns
T
T
OE to data delay
CE to data delay
CLK to data delay
45
-
-
25
45
50
-
OE
CE
-
60
ns
T
-
150
-
ns
CAC
(3)
T
Data hold from CE, OE, or CLK
0
-
50
-
0
ns
OH
(3,4)
T
CE or OE to data float delay
-
-
50
-
ns
DF
T
Clock periods
200
100
100
25
0
80
20
20
20
0
ns
CYC
(3)
T
CLK Low time
-
-
ns
LC
HC
(3)
T
CLK High time
-
-
ns
T
T
T
CE setup time to CLK (to guarantee proper counting)
CE hold time to CLK (to guarantee proper counting)
OE hold time (guarantees counters are reset)
-
-
ns
SCE
HCE
HOE
-
-
ns
100
-
20
-
ns
Notes:
1. AC test load = 50 pF
2. All AC parameters are measured with V = 0.0V and V = 3.0V.
IL
IH
3. Guaranteed by design, not tested.
4. Float delays are measured with 5 pF AC loads. Transition is measured at ±200mV from steady state active levels.
DS070 (v2.1) June 1, 2000
www.xilinx.com
7
Product Specification
1-800-255-7778
XILINX [ XILINX, INC ]
