mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 44

• Manufacturer Part Number: mfr4300
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

Device Overview
2.4.4
MFR4300 power and ground pins are summarized in
44
MFR4300
Mnemonic
VDDX[1:4]
VSSX[1:4]
VDDOSC
VSSOSC
VDD2_5
VSS2_5
VDDR
VSSR
VDDA
VSSA
VDDOSC
VSSOSC
Power Supply Pins
EXTAL
XTAL
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 MFR4300 as possible. Bypass
requirements depend on how heavily the MFR4300 pins are loaded.
64-pin LQFP
Pin Number
8, 37, 54, 35
9, 38, 53, 31
Figure 2-4. External Square Wave Clock Generator Connection
59
60
20
19
50
49
26
23
Table 2-4. MFR4300 Power and Ground Connection Summary
VSSOSC
Not connected
(left open)
C3
Nominal
Voltage
2.5V
3.3V
3.3V
3.3V
2.5V
0V
0V
0V
0V
0V
CLKOUT
G
MFR4300 Data Sheet, Rev. 3
Internal power and ground generated by internal regulator
External power and ground, supply to supply to pin drivers and internal
External power and ground, supply to pin drivers.
Operating voltage and ground for the internal voltage regulator.
Provides operating voltage and ground for the internal oscillator. This
voltage regulator.
allows the supply voltage to the oscillator to be bypassed independently.
Internal power and ground generated by internal regulator.
NOTE
Where:
G = 40 MHz CMOS-compatible External Oscillator
(VDDOSC-Level)
Table 2-4
and described below.
Description
Freescale Semiconductor