AN2127 Freescale Semiconductor / Motorola, AN2127 Datasheet - Page 9

• Manufacturer Part Number: AN2127
• Description: EMC Guidelines for MPC Based Automotive Powertrain Systems
• Manufacturer: Freescale Semiconductor / Motorola

which connect all four V
necting all four V
be connected to the power and ground planes with vias. In addition, all V
directly to the ground plane.
The N
as close as possible to the MCU (avoiding the corners where the V
pacitors should be connected directly to the power and ground planes with many vias. See
additional details.
Place any remaining 10 nF capacitors as close to the MCU as possible and distribute around the MCU
in a uniform manner. Connect these capacitors directly to the power and ground planes.
VDDL
EMC Guidelines for MPC500-Based Automotive Powertrain Systems
and Q
SS
VDDL
balls to the capacitors. After the V
balls should be connected directly to the power plane. Place ten 10 nF capacitors
Freescale Semiconductor, Inc.
DD
For More Information On This Product,
balls to the two capacitors. There should also be wide topside strips con-
Rev. 0, 15 July 2001
Go to: www.freescale.com
DD
and V
SS
strips pass the capacitors, they should
DD
capacitors are located). The ca-
SS
balls should be connected
MOTOROLA
Figure 5
for
9