SPC572L64F2 datasheet(34/112 Pages) STMICROELECTRONICS

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Electrical characteristics

SPC572Lx

34/112

DocID027866 Rev 5

In order to ensure device reliability, the average current of the I/O on a single segment should

remain below the IAVGSEG maximum value.

In order to ensure device functionality, the sum of the dynamic and static currents of the I/O

on a single segment should remain below the IDYNSEG maximum value.

Pad mapping on each segment can be optimized using the pad usage information provided

in the I/O Signal Description table. The sum of all pad usage ratios within a segment should

remain below 100%.

Note:

In order to maintain the required input thresholds for the SENT interface, the sum of all I/O

pad output percent IR drop as defined in the I/O Signal Description table, must be below

50 %. See the I/O Signal Description attachment.

Note:

The SPC572Lx I/O Signal Description and Input Multiplexing Tables are contained in a

Microsoft Excel® workbook 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 I/O Signal Description Table tab.

Table 18. I/O consumption(1)

Symbol

Parameter

Conditions

Value

Unit

Min

Typ

Max

IRMS_SEG

Sum of all the DC I/O current

within a supply segment

VDD = 5.0 V ± 10%

—

VDD = 3.3 V ± 10%

—

IRMS_W

RMS I/O current for WEAK

configuration

CL = 25 pF, 2 MHz

VDD = 5.0 V ± 10%

——

1.1

CL = 50 pF, 1 MHz

VDD = 5.0 V ± 10%

——

1.1

CL = 25 pF, 2 MHz

VDD = 3.3 V ± 10%

——

0.6

CL = 50 pF, 1 MHz

VDD = 3.3 V ± 10%

——

0.6

IRMS_M

RMS I/O current for MEDIUM

configuration

CL = 25 pF, 12 MHz

VDD = 5.0 V ± 10%

——

4.7

CL = 50 pF, 6 MHz

VDD = 5.0 V ± 10%

——

4.8

CL = 25 pF, 12 MHz

VDD = 3.3 V ± 10%

——

2.6

CL = 50 pF, 6 MHz

VDD = 3.3 V ± 10%

——

2.7

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