XC1800 Datasheet, PDF (14/16 Pages) Xilinx, Inc – XC1800 Series of In-System

R
XC1800 Series of In-System Programmable Configuration PROMs
.AC Characteristics Over Operating Conditions
CE
RESET/OE
CLK
DATA
9 T_SCE
T_OE
2 ^TCE
T_LC
7
1
3
T_CAC
9
T_SCE
10
T_HCE
8 T_HC
4
T_OH
11 THOE
6 T_CYC
5 T_DF
4 T_OH
99020801
Symbol
1
T_OE
2
T_CE
3
T_CAC
4
T_OH
5
T_DF
6
T_CYC
7
T_LC
8
T_HC
9
T_SCE
10 T_HCE
11 T_HOE
Description
OE to Data Delay
CE to Data Delay
CLK to Data Delay
Data Hold From CE, OE, or CLK
CE or OE to Data Float Delay²
Clock Periods
CLK Low Time³
CLK High Time³
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)
Min
Max
Units
30
ns
45
ns
45
ns
0
ns
50
ns
67
ns
25
ns
25
ns
25
ns
0
ns
25
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. Guaranteed by design, not tested.
4. All AC parameters are measured with V_IL = 0.0 V and V_IH = 3.0 V.
14
September 17, 1999 (Version 1.3)