mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 43

• Manufacturer Part Number: mfr4200
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

2.2.4
MFR4200 power and ground pins are summarized in
Freescale Semiconductor
EXTAL/CC_CLK
MFR4200
Mnemonic
V
V
V
V
V
V
DDX[1:4]
V
SSX[1:4]
V
V
V
VDDOSC
DDOSC
SSOSC
VSSOSC
DD2_5
SS2_5
DDR
SSR
DDA
SSA
XTAL
Power Supply Pins
All VSS pins must be connected together in the application.
Because fast signal transitions place high, short-duration current demands
on the power supply, use bypass capacitors with high-frequency
characteristics and place them as close to the MFR4200 as possible. Bypass
requirements depend on how heavily the MFR4200 pins are loaded.
64-pin LQFP
Pin Number
8, 37, 54, 35
9, 38, 53, 31
Not connected
(left open)
59
60
20
19
50
49
26
23
Table 2-8. MFR4200 Power and Ground Connection Summary
VSSOSC
C3
Nominal
Voltage
Figure 2-4. External Clock Connections
2.5V
3.3V
3.3V
3.3V
2.5V
0V
0V
0V
0V
0V
Clkout
MFR4200 Data Sheet, Rev. 0
Internal power and ground generated by internal regulator
External power and ground, supply to supply to pin drivers and internal
Operating voltage and ground for the internal voltage regulator.
Provides operating voltage and ground for the internal oscillator. This
voltage regulator.
External power and ground, supply to pin drivers.
allows the supply voltage to the oscillator to be bypassed independently.
Internal power and ground generated by internal regulator.
Where:
G = 40MHz CMOS-compatible External Oscillator (VDDOSC-level)
NOTE
Table 2-8
and described below.
Description
Signal Descriptions
43