NXP Semiconductors MPC5777M - Flash Supply

Electrical characteristics
MPC5777M Microcontroller Data Sheet, Rev. 6
NXP Semiconductors 75
The following table describes the supply stability capacitances required on the device for proper operation.
3.14.3 3.3 V flash supply
Table 35. Device power supply integration
Symbol Parameter Conditions
Value
1
1
See Figure 20 for capacitor integration.
Unit
Min Typ Max
C
LV
SR Minimum VDD_LV external
capacitance
2
2
Recommended X7R or X5R ceramic low ESR capacitors, ±15% variation over voltage, temperature, and aging.
Bulk capacitance External regulator
bandwidth > 20 KHz
10 — — µF
Total bypass
capacitance at
external pin
3
3
Each VDD_LV pin requires both a 0.1µF and 0.01µF capacitor for high-frequency bypass and EMC requirements.
Note
3
——
C
HV_IO
SR Minimum VDD_HV_IO external capacitance — 4.7 — — µF
C
HV_FLA
SR Minimum VDD_HV_FLA external capacitance
4,5
4
The recommended flash regulator composition capacitor is 1.5 µF typical X7R or X5R, with –50% and +35% as min and
max. This puts the min cap at 0.75 µF.
5
Start-up time of the internal flash regulator from release of the LVD360 is worst case 500 us. This is based on the typical
CHV_FLA bulk capacitance value.
—0.751.5—µF
C
HV_PMC
SR Minimum V
DD_HV_PMC
External Capacitance
6,7
6
For noise filtering it is recommended to add a high frequency bypass capacitance of 0.1 µF between V
DD_HV_PMC
and
V
SS_HV
.
7
In the 512BGA package, V
DD_HV_PMC
is shorted to V
DD_HV_IO_MAIN
. Use a local 200 nF capacitor on 512BGA balls A29,
B28, F24, G3, in addition to the normal V
DD_HV_IO_MAIN
bulk and local external capacitance.
512 BGA balls A29,
B28, F24, and G23
2.2 4.7 — µF
C
HV_ADC
SR Minimum V
DD_HV_ADV
external capacitance
8
8
For noise filtering it is recommended to add a high frequency bypass capacitance of 0.1 µF between V
DD_HV_ADV
and
V
SS_HV_ADV
.
1.5 3.3 — µF
Table 36. Flash power supply
Symbol Parameter Conditions
Value
Unit
Min Typ Max
V
DD_HV_FLA
1
1
Min value accounts for all static and dynamic variations of the regulator (min cap as 0,75uF).
CC Flash regulator DC output voltage Before trimming 3.1
2
2
Min value of 3.1 V for VDD_HV_REG at 3.15V assumes that the auxiliary regulator on VDD_LV does not actively provide
any current to the chip. If the auxiliary regulator actively provides current, the min value may go lower than 3.1 V drop to
IR drop caused by auxiliary current demanding on VDD_HV_REG supply.
3.3 3.5 V
After trimming
–40°C  T
J
 25°C
3.15 3.3 3.4
After trimming
25°C  T
J
150°C
3.10 3.3 3.4