SPC570S40E1 datasheet(39/68 Pages) STMICROELECTRONICS

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SPC570S40Ex, SPC570S50Ex

Electrical characteristics

4.11

Power management electrical characteristics

4.11.1

Voltage regulator electrical characteristics

The device implements an internal voltage regulator to generate the low voltage core supply

VDD_LV from the high voltage ballast supply VDD_HV_IO. The regulator itself is supplied by

VDD_HV_OSC_PMC.

Note:

VDD_HV_OSC_PMC is to be shorted with VDD_HV_IO supply at package level.

Table 20. Reset electrical characteristics

Symbol

Parameter

Conditions

Value

Unit

Min

Typ

Max

VIH

SR P

Input high level TTL

(Schmitt trigger)

—

2.0

—

VDD_HV_IO

+ 0.4

VIL

SR P

Input low level TTL

(Schmitt trigger)

3.0 V < VDD_HV_IO < 3.6 V

0.4

—

0.6

4.5 V < VDD_HV_IO < 5.5 V

0.4

—

0.8

VHYS

CC C

Input hysteresis TTL

(Schmitt trigger)

—

275

—

VDD_POR CC C

Minimum supply for strong

pull-down activation

——

—

1.2

IOL_R

CC P Strong pull-down current

Device under power-on reset

3.0 V < VDD_HV_IO < 5.5 V,

VOL > 1.0 V

0.2

—

Device under power-on reset

VDD_HV_IO = 4.0 V, VOL = VIL

—

|IWPU|CC P

Weak pull-up current

absolute value

ESR0 pin

VIN = 0.69 * VDD_HV_IO

—

µA

ESR0 pin

VIN = 0.49 * VDD_HV_IO

——

|IWPD|CC P

Weak pull-down current

absolute value

PORST pin

VIN = 0.69 * VDD_HV_IO

——

130

µA

PORST pin

VIN = 0.49 * VDD_HV_IO

—

WFRST SR P

PORST input filtered

pulse

——

—

500

WNFRST SR P

PORST input not filtered

pulse

—

2000

—

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