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XC3S100E_06 Datasheet, PDF (120/231 Pages) Xilinx, Inc – Configurable Logic Block (CLB)
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R
DC and Switching Characteristics
General DC Characteristics for I/O Pins
Table 77: General DC Characteristics of User I/O, Dual-Purpose, and Dedicated Pins
Symbol
Description
Test Conditions
Min Typ Max Units
IL
Leakage current at User I/O,
Input-only, Dual-Purpose, and
Dedicated pins
Driver is in a high-impedance state, –10 – +10 μA
VIN = 0V or VCCO max, sample-tested
IRPU(2)
Current through pull-up resistor at
User I/O, Dual-Purpose, Input-only,
and Dedicated pins
RPU(2)
Equivalent pull-up resistor value at
User I/O, Dual-Purpose, Input-only,
and Dedicated pins (based on IRPU
per Note 2)
IRPD(2)
Current through pull-down resistor at
User I/O, Dual-Purpose, Input-only,
and Dedicated pins
VIN = 0V, VCCO = 3.3V
–0.36 – –1.24 mA
VIN = 0V, VCCO = 2.5V
–0.22 – –0.80 mA
VIN = 0V, VCCO = 1.8V
–0.10 – –0.42 mA
VIN = 0V, VCCO = 1.5V
–0.06 – –0.27 mA
VIN = 0V, VCCO = 1.2V
–0.04 – –0.22 mA
VIN = 0V, VCCO = 3.0V to 3.45V
2.4 – 10.8 kΩ
VIN = 0V, VCCO = 2.3V to 2.7V
2.7
– 11.8 kΩ
VIN = 0V, VCCO = 1.7V to 1.9V
4.3
– 20.2 kΩ
VIN = 0V, VCCO =1.4V to 1.6V
5.0
– 25.9 kΩ
VIN = 0V, VCCO = 1.14V to 1.26V
5.5
– 32.0 kΩ
VIN = VCCO
0.10 – 0.75 mA
RPD(2)
Equivalent pull-down resistor value at
User I/O, Dual-Purpose, Input-only,
and Dedicated pins (based on IRPD
per Note 2)
IREF VREF current per pin
CIN Input capacitance
RDT Resistance of optional differential
termination circuit within a differential
I/O pair. Not available on Input-only
pairs.
VIN = VCCO = 3.0V to 3.45V
VIN = VCCO = 2.3V to 2.7V
VIN = VCCO = 1.7V to 1.9V
VIN = VCCO = 1.4V to 1.6V
VIN = VCCO = 1.14V to 1.26V
All VCCO levels
-
VOCM Min ≤VICM ≤VOCM Max
VOD Min ≤VID ≤VOD Max
VCCO = 2.5V
4.0
– 34.5 kΩ
3.0
– 27.0 kΩ
2.3
– 19.0 kΩ
1.8
– 16.0 kΩ
1.5
– 12.6 kΩ
–10 – +10 μA
3
–
10
pF
– 120 –
Ω
Notes:
1. The numbers in this table are based on the conditions set forth in Table 76.
2. This parameter is based on characterization. The pull-up resistance RPU = VCCO / IRPU. The pull-down resistance RPD = VIN / IRPD.
120
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DS312-3 (v3.4) November 9, 2006
Product Specification
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