DS705 Datasheet, PDF (9/54 Pages) Xilinx, Inc – Integrated adder for complex multiply or multiply-add operation

R
XA Spartan-3A DSP Automotive FPGA Family Data Sheet
General DC Characteristics for I/O Pins
Table 9: General DC Characteristics of User I/O, Dual-Purpose, and Dedicated Pins
Symbol
Description
Test Conditions
Min Typ Max Units
I_L Leakage current at User I/O,
Driver is in a high-impedance state,
Input-only, Dual-Purpose, and ^V_IN ^{= 0V or V}_CCO ^{max, sample-tested}
Dedicated pins, FPGA powered
–10
-
+10 μA
I_HS
Leakage current on pins during All pins except INIT_B, PROG_B, DONE, and JTAG pins
hot socketing, FPGA unpowered ^{when PUDC_B = 1.}
–10
-
+10 μA
INIT_B, PROG_B, DONE, and JTAG pins or other pins
when PUDC_B = 0.
Add I_HS + I_RPU
μA
I_RPU(2)
Current through pull-up resistor
at User I/O, Dual-Purpose, Input-
only, and Dedicated pins.
Dedicated pins are powered by
V_CCAUX.
V_IN = GND
V_CCO or V_CCAUX = 3.0V to 3.6V –151 –315 –710 μA
V_CCO or V_CCAUX = 2.3V to 2.7V –82 –182 –437 μA
V_CCO = 1.7V to 1.9V
–36 –88 –226 μA
V_CCO = 1.4V to 1.6V
–22 –56 –148 μA
R_PU(2)
Equivalent pull-up resistor value
at User I/O, Dual-Purpose, Input-
only, and Dedicated pins (based
on I_RPU per Note 2)
V_IN = GND
V_CCO = 1.14V to 1.26V
V_CCO = 3.0V to 3.6V
V_CCO = 2.3V to 2.7V
V_CCO = 1.7V to 1.9V
–11 –31 –83 μA
5.1 11.4 23.9 kΩ
6.2 14.8 33.1 kΩ
8.4 21.6 52.6 kΩ
V_CCO = 1.4V to 1.6V
10.8 28.4 74.0 kΩ
I_RPD(2)
Current through pull-down
resistor at User I/O, Dual-
Purpose, Input-only, and
Dedicated pins
V_IN = V_CCO
V_CCO = 1.14V to 1.26V
V_CCAUX = 3.0V to 3.6V
V_CCAUX = 2.25V to 2.75V
15.3 41.1 119.4 kΩ
167 346 659 μA
100 225 457 μA
R_PD(2)
Equivalent pull-down resistor
value at User I/O, Dual-Purpose,
Input-only, and Dedicated pins
(based on I_RPD per Note 2)
V_CCAUX = 3.0V to 3.6V
V_IN = 3.0V to 3.6V
V_IN = 2.3V to 2.7V
V_IN = 1.7V to 1.9V
5.5 10.4 20.8 kΩ
4.1 7.8 15.7 kΩ
3.0 5.7 11.1 kΩ
V_IN = 1.4V to 1.6V
2.7 5.1 9.6 kΩ
V_IN = 1.14V to 1.26V
2.4 4.5 8.1 kΩ
V_CCAUX = 2.25V to 2.75V
V_IN = 3.0V to 3.6V
7.9 16.0 35.0 kΩ
V_IN = 2.3V to 2.7V
5.9 12.0 26.3 kΩ
V_IN = 1.7V to 1.9V
4.2 8.5 18.6 kΩ
V_IN = 1.4V to 1.6V
V_IN = 1.14V to 1.26V
3.6 7.2 15.7 kΩ
3.0 6.0 12.5 kΩ
I_REF V_REF current per pin
All V_CCO levels
–10
-
+10 μA
C_IN Input capacitance
-
-
-
10 pF
R_DT Resistance of optional differential
termination circuit within a
differential I/O pair. Not available
on Input-only pairs.
V_CCO = 3.3V ± 10%
V_CCO = 2.5V ± 10%
LVDS_33, MINI_LVDS_33,
RSDS_33
LVDS_25, MINI_LVDS_25,
RSDS_25
90 100 115 Ω
90 110 –
Ω
Notes:
1. The numbers in this table are based on the conditions set forth in Table 8.
2. This parameter is based on characterization. The pull-up resistance R_PU = V_CCO/I_RPU. The pull-down resistance R_PD = V_IN / I_RPD.
DS705 (v1.1) January 20, 2009
www.xilinx.com
Product Specification
9