MC7447AHX1000LB Freescale Semiconductor, MC7447AHX1000LB Datasheet - Page 37

• Manufacturer Part Number: MC7447AHX1000LB
• Description: IC MPU RISC 32BIT 360-FCCBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC7447AHX1000LB

• Processor Type: MPC74xx PowerPC 32-Bit
• Speed: 1.0GHz
• Voltage: 1.3V
• Mounting Type: Surface Mount
• Package / Case: 360-FCCBGA
• Family Name: MPC74xx
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 1GHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.3V
• Operating Supply Voltage (max): 1.35V
• Operating Supply Voltage (min): 1.25V
• Operating Temp Range: 0C to 105C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 360
• Package Type: FCCBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: Not Compliant

It is imperative to note that the processor’s minimum and maximum SYSCLK, core, and VCO frequencies
must not be exceeded regardless of the type of clock source. Therefore, systems in which the processor is
operated at its maximum rated core or bus frequency should avoid violating the stated limits by using
down-spreading only.
9.2
The AV
ensure stability of the internal clock, the power supplied to the AV
noise in the 500-KHz to 10-MHz resonant frequency range of the PLL. A circuit similar to the one shown
in
recommended.
The circuit should be placed as close as possible to the AV
circuits. It is often possible to route directly from the capacitors to the AV
of the 360 HCTE footprint.
9.3
Due to the MPC7447A dynamic power management feature, large address and data buses, and high
operating frequencies, the MPC7447A can generate transient power surges and high frequency noise in its
power supply, especially while driving large capacitive loads. This noise must be prevented from reaching
other components in the MPC7447A system, and the MPC7447A itself requires a clean, tightly regulated
source of power. Therefore, it is recommended that the system designer use sufficient decoupling
capacitors, typically one capacitor for every 1–2 V
pins, placed as close as possible to the power pins of the MPC7447A. It is also recommended that these
decoupling capacitors receive their power from separate V
utilizing short traces to minimize inductance.
Freescale Semiconductor
Figure 17
DD
At recommended operating conditions. See
PLL Power Supply Filtering
Decoupling Recommendations
Frequency modulation
Frequency spread
Notes:
1. Guaranteed by design.
2. SYSCLK frequencies resulting from frequency spreading, and the resulting core and VCO
power signal is provided on the MPC7447A to provide power to the clock generation PLL. To
frequencies, must meet the minimum and maximum specifications given in
using surface-mount capacitors with minimum effective series inductance (ESL) is
V
DD
Table 14. Spread Specturm Clock Source Recommendations
MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5
Parameter
10 Ω
Figure 17. PLL Power Supply Filter Circuit
2.2 µF
Table
4.
GND
DD
pins, and a similar or lesser number for the OV
Low ESL Surface Mount Capacitors
2.2 µF
DD
DD
Min
—
—
, OV
pin to minimize noise coupled from nearby
DD
DD
AV
, and GND power planes in the PCB,
input signal should be filtered of any
DD
Max
1.0
50
DD
Table
pin, which is on the periphery
8.
Unit
kHz
System Design Information
%
Notes
1, 2
1
DD
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