Power Supply And Reference Voltage Pins; System Pins - STMicroelectronics SPC572L series Reference Manual

Signal description
2. Pins on the device that are not supply or reference are not explicilty defined in this table.
3. Pure analog inputs, on digital output function.
4. Device does not implement system configuration pin. TESTMODE is the only pin affecting device configuration. It is latched
on PORST rising edge and internally pull-down.
5. Function of XTAL/EXTAL pins defined by the enable bit in the flash user test row. If enabled, the pins are analog inputs to
the oscillator. If disabled, the XTAL/EXTAL pins remain in High impedance after reset.
4.3.2

Power supply and reference voltage pins

Power supply and reference pins for the device are listed in this section.
Table 4 contains information on power supply and reference pin functions for the devices.
The Supply Pins Table contains information on power supply and reference pins. See the
Signal Table (Excel file) attached to this document. Locate the paperclip symbol on the left
side of the PDF window, and click it. Double-click on the excel file to open it and select the
Supply Pins Table tab.
Symbol Type
V Ground
SS_HV
V Ground
SS_LV
V Ground
SS_HV_OSC
V Power
DD_LV
V Power
DD_HV_PMC
V Power
DD_HV_IO_MAIN
V Power
DD_HV_IO_JTAG
V Power
DD_HV_OSC
V Power
DD_HV_IO_ETH
V Power
DD_HV_FLA
V Power
DD_HV_ADV
Referenc
V
SS_HV_ADR
Referenc
V
DD_HV_ADR
4.3.3

System pins

Table 5 contains information on system pin functions for the devices.
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Table 4. Power supply and reference pins
Supply
Description
High voltage ground
Low voltage ground
Ground supply for the oscillator
Low voltage power supply for
production device
(PLL is also powered by this pin.)
High voltage power supply for
internal power management unit
High voltage power supply for I/O
JTAG/Oscillator power supply
Oscillator voltage supply
Ethernet 3.3 V I/O supply
Decoupling supply pin for flash
High voltage supply for ADC
Ground reference of ADCs
e
Voltage reference of ADCs
e
DocID027809 Rev 4
QFP pin
80
Exposed
pad 81
Exposed
pad 81
Exposed
pad 81
15, 42, 68
55
16, 41, 67
45
45
77
68
33
23
24
RM0400
100
Exposed
pad 101
Exposed
pad 101
Exposed
pad 101
19, 52, 68
—
20, 51, 85
55
55
95
86
39
28
29