XC2287 / XC2286 / XC2285
XC2000 Family Derivatives
Preliminary
Electrical Parameters
4.2
DC Parameters
These parameters are static or average values, which may be exceeded during
switching transitions (e.g. output current).
The XC228x can operate within a wide supply voltage range from 3.0 V to 5.5 V.
However, during operation this supply voltage must not vary within the complete
operating voltage range, but must remain within a certain band of 10% of the chosen
nominal supply voltage.
For this reason and because the electrical behaviour partly depends on the supply
voltage, the parameters are specified twice for the upper and the lower voltage area.
During operation, the supply voltages may only change with a maximum speed of
dV/dt < 1 V/ms.
The leakage currents strongly depend on the operating temperature and the actual
voltage level at the respective pin. The maximum values given in the following tables
apply under worst case conditions, i.e. maximum temperature and an input level equal
to the supply voltage.
The actual value for the leakage current can be determined by evaluating the respective
leakage derating formula (see tables) using values from the actual application.
The pads of the XC228x are designed to operate in various driver modes. The DC
parameter specifications refer to the current limits given in Table 11.
Table 11
Current Limits for Port Output Drivers
Port Output Driver
Mode
Maximum Output Current
Nominal Output Current
(IOLnom, -IOHnom
VDDP ≥ 4.5 V VDDP < 4.5 V VDDP ≥ 4.5 V VDDP < 4.5 V
1)
(IOLmax, -IOHmax
)
)
Strong driver
Medium driver
Weak driver
10 mA
4.0 mA
0.5 mA
10 mA
2.5 mA
0.5 mA
2.5 mA
1.0 mA
0.1 mA
2.5 mA
1.0 mA
0.1 mA
1) An output current above |IOXnom| may be drawn from up to three pins at the same time.
For any group of 16 neighboring output pins the total output current in each direction (ΣIOL and Σ-IOH) must
remain below 50 mA.
Data Sheet
76
V0.91, 2007-02
Draft Version
INFINEON [ Infineon ]
