Datasheet
MPC8241 Integrated Processor Hardware Specifications, Rev. 10
Freescale Semiconductor 11
Electrical and Thermal Characteristics
4.2.1 Output Driver Characteristics
Table 4 provides information on the characteristics of the output drivers referenced in Table 16. The values
are preliminary estimates from an IBIS model and are not tested.
Capacitance V
in
= 0 V, f = 1 MHz C
in
— 16.0 pF
Notes:
1. See Table 16 for pins with internal pull-up resistors.
2. All grounded pins are connected together.
3. Leakage current is measured on input and output pins in the high-impedance state. The leakage current is measured for
nominal GV
DD
_OV
DD
/LV
DD
and V
DD
or both GV
DD
_OV
DD
/LV
DD
and V
DD
must vary in the same direction.
4. See Ta bl e 4 for the typical drive capability of a specific signal pin based on the type of output driver associated with that pin
as listed in Ta ble 1 6 .
Table 4. Drive Capability of MPC8241 Output Pins
5, 6
Driver Type
Programmable Output
Impedance
(Ω)
Supply Voltage I
OH
I
OL
Unit Notes
DRV_STD_MEM 20 (default) GV
DD
_OV
DD
= 3.3 V 36.6 18.0 mA 2, 4
40 18.6 9.2 mA 2, 4
DRV_PCI 20 12.0 12.4 mA 1, 3
40 (default) 6.1 6.3 mA 1, 3
DRV_MEM_CTRL
DRV_PCI_CLK
DRV_MEM_CLK
6 (default) 89.0 42.3 mA 2, 4
20 36.6 18.0 mA 2, 4
40 18.6 9.2 mA 2, 4
Notes:
1. For DRV_PCI, I
OH
read from the IBIS listing in the pull-up mode, I(Min) column, at the 0.33-V label by interpolating between
the 0.3- and 0.4-V table entries current values which corresponds to the PCI V
OH
= 2.97 = 0.9 × GV
DD
_OV
DD
(GV
DD
_OV
DD
= 3.3 V) where table entry voltage = GV
DD
_OV
DD
– PCI V
OH
.
2. For all others with GV
DD
_ OV
DD
= 3.3 V, I
OH
read from the IBIS listing in the pull-up mode, I(Min) column, at the 0.9-V table
entry which corresponds to the V
OH
= 2.4 V where table entry voltage = GV
DD
_OV
DD
– V
OH
.
3. For DRV_PCI, I
OL
read from the IBIS listing in the pull-down mode, I(Min) column, at 0.33 V = PCI V
OL
= 0.1 × GV
DD
_OV
DD
(GV
DD
_OV
DD
= 3.3 V) by interpolating between the 0.3- and 0.4-V table entries.
4. For all others with GV
DD
_OV
DD
= 3.3 V, I
OL
read from the IBIS listing in the pull-down mode, I(Min) column, at the 0.4-V table
entry.
5. See driver bit details for output driver control register (0x73) in the MPC8245 Integrated Processor Reference Manual.
6. See Chip Errata No. 19 in the MPC8245/MPC8241 Integrated Processor Chip Errata.
Table 3. DC Electrical Specifications (continued)
Characteristics Conditions Symbol Min Max Unit Notes