DS031 Datasheet, PDF (53/318 Pages) Xilinx, Inc – Summary of Features

R
Virtex-II Platform FPGAs: DC and Switching Characteristics
Table 6: DC Input and Output Levels (Continued)
Input/Output
Standard
V_IL
V, Min V, Max
V_IH
V, Min
V, Max
V_OL
V, Max
V_OH
V, Min
SSTL3 I
– 0.5
V_REF – 0.2
V_REF + 0.2 V_CCO + 0.5 V_REF – 0.6
V_REF + 0.6
SSTL3 II
– 0.5
V_REF – 0.2
V_REF + 0.2 V_CCO + 0.5 V_REF – 0.8
V_REF + 0.8
SSTL2 I
– 0.5 V_REF – 0.15 V_REF + 0.15 V_CCO + 0.5 V_REF – 0.65 V_REF + 0.65
SSTL2 II
– 0.5 V_REF – 0.15 V_REF + 0.15 V_CCO + 0.5 V_REF – 0.80 V_REF + 0.80
AGP
– 0.5
V_REF – 0.2
V_REF + 0.2 V_CCO + 0.5 10% V_CCO
90% V_CCO
Notes:
1. V_OL and V_OH for lower drive currents are sample tested. The DONE pin is always LVTTL 12 mA.
2. Tested according to the relevant specifications.
3. LVTTL and LVCMOS inputs have approximately 100 mV of hysteresis.
I_OL
mA
8
16
7.6
15.2
Note 2
I_OH
mA
–8
– 16
– 7.6
– 15.2
Note 2
LDT Differential Signal DC Specifications (LDT_25)
Table 7: LDT DC Specifications
DC Parameter
Symbol
Conditions
Min Typ Max Units
Differential Output Voltage
V_OD R_T = 100 Ω across Q and Q signals 500 600 700 mV
Change in V_OD Magnitude
Δ V_OD
–15
15 mV
Output Common Mode Voltage
V_OCM R_T = 100 Ω across Q and Q signals 560 600 640 mV
Change in V_OS Magnitude
Δ V_OCM
–15
15 mV
Input Differential Voltage
V_ID
200 600 1000 mV
Change in V_ID Magnitude
Δ V_ID
–15
15 mV
Input Common Mode Voltage
V_ICM
500 600 700 mV
Change in V_ICM Magnitude
Δ V_ICM
–15
15 mV
LVDS DC Specifications (LVDS_33 & LVDS_25)
Table 8: LVDS DC Specifications
DC Parameter
Symbol
Conditions
Supply Voltage
Output High Voltage for Q and Q
Output Low Voltage for Q and Q
Differential Output Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_CCO
V_OH
V_OL
V_ODIFF
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
R_T = 100 Ω across Q and Q signals
Output Common-Mode Voltage
Differential Input Voltage (Q – Q),
Q = High (Q – Q), Q = High
V_OCM
V_IDIFF
R_T = 100 Ω across Q and Q signals
Common-mode input voltage = 1.25 V
Input Common-Mode Voltage
V_ICM
Differential input voltage = ±350 mV
Min
Typ
3.3 or 2.5
0.925
250
350
1.125
1.2
100
350
0.2
1.25
Max
1.575
400
1.375
N/A
V_CCO – 0.5
Units
V
V
V
mV
V
mV
V
DS031-3 (v3.5) November 5, 2007
Product Specification
www.xilinx.com
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