XPC8260ZUIHBC Freescale Semiconductor, XPC8260ZUIHBC Datasheet - Page 11

• Manufacturer Part Number: XPC8260ZUIHBC
• Description: IC MPU POWERQUICC II 480-TBGA
• Manufacturer: Freescale Semiconductor

Specifications of XPC8260ZUIHBC

• Processor Type: MPC82xx PowerQUICC II 32-bit
• Speed: 200MHz
• Voltage: 2.5V
• Mounting Type: Surface Mount
• Package / Case: 480-TBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

1
2
3
2.3.1
Each V
pin should likewise be provided with a low-impedance path to ground. The power supply pins drive
distinct groups of logic on chip. The V
0.1 µF by-pass capacitors located as close as possible to the four sides of the package. The capacitor leads
and associated printed circuit traces connecting to chip V
inch per capacitor lead. A four-layer board is recommended, employing two inner layers as V
planes.
All output pins on the MPC8260 have fast rise and fall times. Printed circuit (PC) trace interconnection
length should be minimized in order to minimize overdamped conditions and reflections caused by these
fast output switching times. This recommendation particularly applies to the address and data buses.
Maximum PC trace lengths of six inches are recommended. Capacitance calculations should consider all
device loads as well as parasitic capacitances due to the PC traces. Attention to proper PCB layout and
bypassing becomes especially critical in systems with higher capacitive loads because these loads create
higher transient currents in the V
inputs during reset. Special care should be taken to minimize the noise levels on the PLL supply pins.
Table 5
thermal management is required for conditions above P
greater) to ensure the junction temperature does not exceed the maximum specified value. Also note that
the I/O power should be included when determining whether to use a heat sink.
33.3
50.0
66.7
66.7
66.7
66.7
50.0
Note:
Freescale Semiconductor
Test temperature = room temperature (25
P
2.8 Vddl does not apply to HiP3 Rev C silicon.
(MHz)
INT
Bus
= I
CC
provides preliminary, estimated power dissipation for various configurations. Note that suitable
DD
MPC8260 PowerQUICC II Integrated Communications Processor Hardware Specifications, Rev. 2
pin should be provided with a low-impedance path to the board’s power supply. Each ground
x V
4
2
2
2.5
2
2.5
3
Layout Practices
Multiplier
DD
CPM
Watts
Table 5. Estimated Power Dissipation for Various Configurations
4
3
2.5
2.5
3
3
4
Multiplier
CPU
CC
133.3
100
133.3
166.7
133.3
166.7
150
°
and GND circuits. Pull up all unused inputs or signals that will be
C)
(MHz)
CC
CPM
power supply should be bypassed to ground using at least four
133.3
150.0
166.7
166.7
200.0
200.0
200.0
(MHz)
CPU
D
CC
= 3W (when the ambient temperature is 70° C or
and ground should be kept to less than half an
2.04
2.21
2.47
2.57
2.81
2.88
2.83
2.4
2.14
2.30
2.62
2.69
2.95
3.05
3.00
2.5
Electrical and Thermal Characteristics
P
INT
Vddl
2.26
2.45
2.74
2.83
3.12
3.22
3.14
2.6
(W)
1
2
2.38
2.59
2.88
2.98
3.29
3.38
3.31
2.7
CC
and GND
2.50
2.69
3.02
3.12
3.43
3.55
3.48
2.8
3
11