Freescale Semiconductor FlexRay MFR4310 - Chip Power-Up and Voltage Drops; Output Loads; Figure A-1. Voltage Regulator - Chip Power-Up and Voltage Drops (Not Scaled); Table A-10. Voltage Regulator Recommended Capacitive Loads

Electrical Characteristics
MFR4310 Reference Manual, Rev. 2
248 Freescale Semiconductor
A.2.2 Chip Power-up and Voltage Drops
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 Figure A-1.
Figure A-1. Voltage Regulator — Chip Power-up and Voltage Drops (not scaled)
A.2.3 Output Loads
A.2.3.1 Resistive Loads
On-chip voltage regulator intended to supply the internal logic and oscillator circuits allows no external
DC loads.
A.2.3.2 Capacitive Loads
The capacitive loads are specified in Figure A-10. Ceramic capacitors with X7R dielectricum are required.
Table A-10. Voltage Regulator Recommended Capacitive Loads
Num Characteristic Symbol Min Typical Max Unit
1 VDD external capacitive load C
DDext
200 440 12000 nF
3 VDDOSC external capacitive load C
DDOSCext
90 220 5000 nF
V
LVRD
V
LVRA
V
PORD
POR
LVR
t
V
V
DD