Datasheet
Table 3. Recommended operating conditions (V
DD_HV_x
= 5 V) (continued)
Symbol Parameter Conditions Min
1
Max Unit
V
DD_LV
4
Internal supply voltage — 1.2 1.32 V
V
SS_LV
Internal reference voltage — 0 0 V
I
INJPAD
Injected input current on any pin during
overload condition
— -3.0 3.0 mA
T
A
5
Ambient temperature under bias f
CPU
≤ 160
MHz
–40 125 °C
T
J
Junction temperature under bias — –40 150 °C
1. Device will be functional down (and electrical specifications as per various datasheet parameters will be guaranteed) to the
point where the LVD_IO_A_LO resets the device. When voltage drops below VLVD_IO_A_LO, device is reset.
2. VDD_HV_A, VDD_HV_B and VDD_HV_C are all independent supplies and can each be set to 3.3V or 5V. For example, if
VDD_HV_A = 5V, then VDD_HV_B and VDD_HV_C can both be 3.3V. However, care must be taken over ADC inputs that
operate across the IO segments.
3. When VDD_HV is in 5 V range, VDD_HV_FLA cannot be supplied externally.This pin is decoupled with C
flash_reg
.
4. PA3, PA7, PA10, PA11 and PE12 ADC_1 channels are coming from VDD_HV_B domain hence VDD_HV_ADC1 should
be within ±100 mV of VDD_HV_B when these channels are used for ADC_1.
5. Tj=150°C. Assumes Ta=125°C
• Assumes maximum θJA. SeeThermal attributes
2.4 Voltage regulator electrical characteristics
The voltage regulator is composed of the following blocks:
• Choice of generating supply voltage for the core area.
• Control of external NPN ballast transistor
• Connecting an external 1.25V (nominal) directly without the NPN ballast
• Internal generation of the 3.3V flash supply when device connected in 5V
applications
• External bypass of the 3.3V flash regulator when device connected in 3.3V
applications
• Low voltage detector - low range (LVD_IO_A_LO) for 3.3 V to 5V supply to IO
(V
DD_HV_A
)
• Low voltage detector - high range (LVD_IO_A_Hi) for the 3.3 V to 5V supply
(VDD_HV_A)
• Low voltage detector (LVD_FLASH) for 3.3 V flash supply (VDD_HV_FLA)
• Various low voltage detectors (LVD_LV_x) for 1.2 V digital core supply (VDD_LV)
• High voltage detector (HVD_LV_cold) for 1.2 V digital core supply (VDD_LV)
• Power on Reset (POR_LV) for 1.25 V digital core supply (VDD_LV)
• Power on Reset (POR_HV) for 3.3V to 5V supply (VDD_HV_A)
General
MPC5748G Microcontroller Datasheet Data Sheet, Rev. 2, 05/2014.
8
Preliminary
Freescale Semiconductor, Inc.