mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 247

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

A.2.2
Voltage regulator sub modules POR (power-on reset) and LVR (low voltage reset) handle chip power-up
or drops of the supply voltage. Their function is described in
A.2.3
A.2.3.1
On-chip voltage regulator intended to supply the internal logic and oscillator circuits allows no external
DC loads.
A.2.3.2
The capacitive loads are specified in
Freescale Semiconductor
Num
1
3
V
PORD
V
LVR
POR
VDD external capacitive load
VDDOSC external capacitive load
Chip Power-up and Voltage Drops
Output Loads
Resistive Loads
Capacitive Loads
Figure A-1. Voltage Regulator — Chip Power-up and Voltage Drops (not scaled)
V
V
LVRD
LVRA
Table A-10. Voltage Regulator Recommended Capacitive Loads
Characteristic
Figure
MFR4300 Data Sheet, Rev. 3
A-10. Ceramic capacitors with X7R dielectricum are required
C
Symbol
DDOSCext
C
DDext
Figure
Min
200
90
A-1.
Typical
440
220
Electrical Characteristics
12000
5000
Max
V
DD
t
Unit
nF
nF
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