MPC8548E Freescale, MPC8548E Datasheet - Page 12
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MPC8548E
Manufacturer Part Number
MPC8548E
Description
Integrated Processor
Manufacturer
Freescale
Datasheet
1.MPC8548E.pdf
(142 pages)
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Electrical Characteristics
Figure 2
The core voltage must always be provided at nominal 1.1 V. Voltage to the processor interface I/Os are
provided through separate sets of supply pins and must be provided at the voltages shown in
input voltage threshold scales with respect to the associated I/O supply voltage. OV
receivers are simple CMOS I/O circuits and satisfy appropriate LVCMOS type specifications. The DDR
SDRAM interface uses a single-ended differential receiver referenced the externally supplied MV
signal (nominally set to GV
12
Junction temperature range
Notes:
1. This voltage is the input to the filter discussed in
2. Caution: MV
3. Caution: OV
4. Caution: L/TV
at the AV
power-on reset and power-down sequences.
power-on reset and power-down sequences.
power-on reset and power-down sequences.
shows the undershoot and overshoot voltages at the interfaces of this device.
DD
pin, which may be reduced from V
IN
IN
IN
V
must not exceed OV
must not exceed GV
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
IH
Figure 2. Overshoot/Undershoot Voltage for GV
must not exceed L/TV
Notes:
1. t
2. Please note that with the PCI overshoot allowed (as specified above), the device
For I
For DDR, t
For eTSEC, t
For LBIU, t
For PCI, t
For SerDes, t
does not fully comply with the maximum AC ratings and device protection
guideline outlined in the PCI rev. 2.2 standard (section 4.2.2.3).
CLOCK
B/G/L/O/TV
B/G/L/O/TV
V
Table 2. Recommended Operating Conditions (continued)
Characteristic
IL
2
C and JTAG, t
refers to the clock period associated with the respective interface:
DD
B/G/L/O/TV
CLOCK
GND – 0.3 V
GND – 0.7 V
CLOCK
CLOCK
/2) as is appropriate for the SSTL2 electrical signaling standard.
DD
CLOCK
CLOCK
DD
DD
DD
+ 20%
references PCI n _CLK or SYSCLK.
DD
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
+ 5%
references LCLK.
GND
references MCLK.
CLOCK
by more than 0.3 V. This limit may be exceeded for a maximum of 20 ms during
references EC_GTX_CLK125.
DD
references SD_REF_CLK.
DD
Section 21.2.1, “PLL Power Supply Filtering,”
references SYSCLK.
by the filter.
Not to Exceed 10%
of t
CLOCK
DD
Symbol
/OV
Tj
1
DD
/LV
Recommended
DD
/BV
0 to 105
Value
and not necessarily the voltage
DD
/TV
DD
Freescale Semiconductor
DD
and LV
Unit
Table
°C
DD
REF
based
2. The
Notes
—