QPro Series Configuration PROMs (XQ) including Radiation-Hardened Series (XQR)
R
AC Characteristics Over Operating Condition
CE
TSCE
TSCE
THCE
RESET/OE
TLC
THC
THOE
TCYC
CLK
TOE
TCE
TCAC
TOH
TDF
DATA
TOH
DS027_03_021500
XQ(R)1701L
Symbol
T
OE
T
CE
T
CAC
T
DF
T
OH
T
CYC
T
LC
T
HC
T
SCE
T
HCE
T
HOE
OE to data delay
CE to data delay
CLK to data delay
CE or OE to data float delay
(2,3)
Data hold from CE, OE, or CLK
(3)
Clock periods
CLK Low time
(3)
CLK High time
(3)
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)
Description
Min
-
-
-
-
0
67
25
25
25
0
25
Max
30
45
45
50
-
-
-
-
-
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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 V
IL
= 0.0V and V
IH
= 3.0V.
8
1-800-255-7778
DS062 (v3.1) November 5, 2001
Preliminary Product Specification
XILINX [ XILINX, INC ]
