STM32MP157C datasheet(211/260 Pages) STMICROELECTRONICS

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DS12505 Rev 5

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STM32MP157C/F

Electrical characteristics

238

6.3.29

VDDCORE monitoring characteristics

6.3.30

Voltage booster for analog switch

6.3.31

Compensation cell

6.3.32

Digital filter for sigma-delta modulators (DFSDM) characteristics

Unless otherwise specified, the parameters given in Table 92 for DFSDM are derived from

tests performed under the ambient temperature, fpclkx frequency and VDD supply voltage

summarized in Table 13: General operating conditions, with the following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 10

•

Capacitive load C = 30 pF

•

Measurement points are done at CMOS levels: 0.5×VDD

Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate

function characteristics (DFSDMx_CKINx, DFSDMx_DATINx, DFSDMx_CKOUT for

DFSDMx).

Table 89. VDDCORE monitoring characteristics

Symbol

Parameter

Min

Typ

Max

Unit

tS_vddcore(1)

1. Guaranteed by design.

ADC sampling time when reading VDDCORE

input

100

Table 90. Voltage booster for analog switch characteristics

Symbol

Parameter

Condition

Min Typ Max Unit

VDD

Supply voltage

1.71

3.6

tSU(BOOST) Booster startup time

µs

IDD(BOOST) Booster consumption

1.71 V ≤ VDD ≤ 2.7 V

125

µA

2.7 V < VDD < 3.6 V

250

Table 91. Compensation cell characteristics

Symbol

Parameter

Condition

Min Typ Max Unit

ICOMPCELL

VDD current consumption

during code calculation

1.71 V ≤ VDD ≤ 2.7 V

3.5

2.7 V < VDD < 3.6 V

TREADY

Time needed for code

calculation

1.71 V ≤ VDD ≤ 2.7 V

300

µs

2.7 V < VDD < 3.6 V

250

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