參數(shù)資料
型號(hào)： MPC8245LZU266B
廠商： MOTOROLA INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, 266 MHz, RISC PROCESSOR, PBGA352
封裝： 35 X 35 MM, 1.65 MM HEIGHT, 1.27 MM PITCH, CAVITY-UP, TBGA-352
文件頁(yè)數(shù)： 3/64頁(yè)
文件大小： 940K
代理商： MPC8245LZU266B
MOTOROLA
MPC8245 Integrated Processor Hardware Specifications
11
Electrical and Thermal Characteristics
1.4.1.4
Output Driver Characteristics
Table 4 provides information on the characteristics of the output drivers referenced in Table 17. The values
are preliminary estimates from an IBIS model and are not tested.
Capacitance
Vin = 0 V, f = 1 MHz
Cin
—16.0
pF
Notes:
1. See Table 17 for pins with internal pull-up resistors.
2. See Table 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 Table 17.
3. These specifications are for the default driver strengths indicated in Table 4.
4. Leakage current is measured on input and output pins in the high-impedance state. The leakage current is
measured for nominal OVDD/LVDD and VDD or both OVDD/LVDD and VDD must vary in the same direction.
Table 4. Drive Capability of MPC8245 Output Pins 5
Driver Type
Programmable
Output Impedance
(
)
Supply
Voltage
IOH
IOL
Unit
Notes
DRV_STD_MEM
20
OVDD = 3.3 V
36.6
18.0
mA
2, 4, 6
40 (default)
18.6
9.2
mA
2, 4, 6
DRV_PCI
20
12.0
12.4
mA
1, 3
40 (default)
6.1
6.3
mA
1, 3
DRV_MEM_CTRL
6 (default)
GVDD = 3.3 V
89.0
42.3
mA
2, 4
DRV_PCI_CLK
20
36.6
18.0
mA
2, 4
DRV_MEM_CLK
40
18.6
9.2
mA
2, 4
Notes:
1. For DRV_PCI, IOH 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 VOH = 2.97 = 0.9 × OVDD
(OVDD = 3.3 V) where table entry voltage = OVDD – PCI VOH.
2. For all others with GVDD or OVDD = 3.3 V, IOH read from the IBIS listing in the pull-up mode, I(Min) column, at the
0.9 V table entry which corresponds to the VOH = 2.4 V where table entry voltage = GVDD/OVDD – VOH.
3. For DRV_PCI, IOL read from the IBIS listing in the pull-down mode, I(Min) column, at 0.33 V = PCI VOL = 0 × OVDD
(OVDD = 3.3 V) by interpolating between the 0.3- and 0.4-V table entries.
4. For all others with GVDD or OVDD = 3.3 V, IOL 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 User’s Manual.
6. See Chip Errata No. 19 in the MPC8245/MPC8241 RISC Microprocessor Chip Errata.
Table 3. DC Electrical Specifications (continued)
At recommended operating conditions (see Table 2)
Characteristic
Condition 3
Symbol
Min
Max
Unit
Notes
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