NXP Semiconductors MPC5746R - Page 7

Power Supply
MPC5746R Hardware Design Guide, Rev. 1
NXP Semiconductors 7
Figure 3. Multi Supply, 5 V and 1.25 V without Ethernet
3.1.5 Decoupling Capacitor Recommendation for supply domains
Table 6 shows all power domains and the suggested decoupling and/or filter capacitors for their
corresponding pins. These values are provided as a guideline and will vary depending on the application
and capability of the power supplies used.
Table 6. Supply Decoupling Requirements
Domain Supply Voltage Bulk Bypass (each pin)
VDD_LV
1
1.25 V 4.7 μF
2
220nF ~ 47 nF
VDD_HV_IO_MAIN 5.0 V 4.7 uF
3
100nF ~ 10 nF
VDD_HV_ADV_SAR 5.0 V 10 μF 220nF ~ 100 nF
VDD_HV_ADR_SAR 5.0 V – 220nF ~ 100 nF
VDD_HV_ADV_SD 5.0 V 4.7 μF 220nF ~ 100 nF
VDD_HV_ADR_SD 5.0 V – 220nF ~ 100 nF
VDD_HV_IO_JTAG 3.3 V or 5.0 V 4.7 μF 220nF ~ 100 nF
VDD_HV_IO_FEC 5.0 V or 3.3 V 4.7 μF 220nF ~ 100 nF
VDD_HV_IO_MSC 5.0 V or 3.3 V 4.7 μF 220nF ~ 100 nF
VDD_HV_PMC 5.0 V 4.7 μF 220nF ~ 47 nF